CUCKOO
User Manual
CP-AAN100ULWH / CP-AAN100ULDSV
CP-AAN100ULWH / CP-AAN100ULDSV User Manual
Dear customers!
Thank you very much for using the CUCKOO Electric Water Purifier Please keep this manual(including the warranty) for future reference. It will be helpful if you have questions or experience any issues with the product's functions.
Features and Benefits of CUCKOO Electric Water Purifier
Product Benefits
- Nano Positive Filtration System Application of CUCKOO Water Purifier's Nano Positive Filtration System produces clean water.
- Electric Water Purifier You may drink water, which has passed a filter in an instantaneous cooling, heating or purification method, as cold, hot or room temperature water.
- Water Purifier Featuring an Ultraslim Design and Multi-Functionality Cold water, room temperature water, and cleansing water are all available in a single purifier. Thanks to its slim and stylish design, it helps make more efficient use of space.
- Electrolytic Cleaning System The electrolytic cleaning system can use cleaning water dispensed from the sink faucet.
- Economical and Eco-Friendly Water Filtration System An extremely economical and eco-friendly water purification system, which produces no wasted water in the process of water filtration has been selected.
- Button Lock/Functional Lock To prevent potential accidents as a result of product misuse by children or the elderly, Button Lock and Functional Lock (Hot water, Cold Water) have been added.
- Water Leak Prevention System Water leakage that may be caused during product usage is detected and prevented to enable safe use of the water purifier.
- Non-stop Dispensing Function You can continuously dispense cold water, hot water, and room temperature water.
- Fixed Quantity Dispensing Function It is convenient to be able to dispense a fixed quantity, either One Cup (about 250ml) or Half Cup (about 120ml), of cold water, room temperature water.
This manual includes the warranty.
Before using the product, make sure to read the "User Manual" to use it accurately. After reading it, please keep it in a place where people who use the product can access it anytime.
Caution: This product is for household use, and other uses (industrial, experimental, etc.) are prohibited. In order to use this product for a long time without malfunctioning, please read this User Manual.
Warnings for Safe Use
- Please comply with the "Safety Warnings" to ensure safe and proper use of the product and to avoid accidents or dangerous situations.
- The 'Warnings for Safe Use' section consists of "Warning" and "Caution" items, which are defined as follows.
| Symbol/Type | Description |
|---|---|
| Warning | Potentially dangerous situations that can cause serious injuries or death if not avoided. |
| Caution | Potentially dangerous situation that can cause minor injuries if not avoided. |
| Triangle Exclamation Icon | This symbol indicates a potentially dangerous situation under specific circumstances. Please read the details carefully and follow the instructions to avoid dangerous situations. |
| Prohibited | This symbol is used to indicate actions that are 'prohibited'. |
| Instructions | This symbol is used to indicate "Instructions". |
About Power
WarningProhibited
Make sure to use it on an outlet exclusively for USA: 120V~ / Australia: 230V~ and the current rating of 15A or greater that can be grounded, and do not insert power plugs of several products in a single outlet at the same time.
- If you use it with a lot of products, this may cause a fire or an electric shock. Please check the power outlet regularly.
- If it is not properly grounded, this may cause electric shock due to a short circuit.
- If there is a foreign substance or moisture on the Power Plug, wipe it thoroughly before use.
WarningProhibited
Do not bend, tie or pull the Power Cord by force. Do not plug in multiple devices into the same power outlet or extension cord simultaneously.
- This may cause electric shock or fire due to a short circuit.
WarningProhibited
Do not use an attachable multi-power outlet.
- This may cause a fire or electric shock.
WarningProhibited
If a Power Cord or a Power Plug is damaged or when the Power Outlet is shaky, stop using the product and contact our Customer Service Center.
- If the sheath of the power cord is peeled off or severed during use of the product due to negligence, it may cause fire or electric shock. Thus, please frequently check the condition of the power cord, power plug and power outlet.
- To prevent dangerous situations arising from the damage of the power cord or the power plug, please contact the manufacturer, distributor or certified technician (service staff) for replacement of the cord.
- We strongly recommend that the damaged parts be repaired at a designated service center.
- This may cause electric shock, short circuit, and fire.
WarningProhibited
If there is any moisture, dust, or foreign substances on the Power Plug, remove them with a dry cloth.
- This may cause electric shock or fire. Please check the Power Plug frequently.
WarningProhibited
If you use a movable extension cord, use only a single product for an extension cord of 15A of current capacity and ensure that it is properly grounded.
- This may cause a fire or electric shock.
WarningProhibited
When unplugging the product, make sure to hold the Power Plug, not the Power Cord.
- Applying force to the Power Cord may cause electric shock or fire. Please check the Power Plug and the Power Cord frequently.
WarningProhibited
Use alternating current voltage of USA: 120V~ / Australia: 230V~ only.
- Not doing so may cause electric shock and/or fire. • The product will not work properly. • Please check the Power Plug and the Power Cord frequently.
WarningProhibited
During water leakage or cleaning, make sure to close the Tap Water Supply Valve and pull out the plug.
- There is a risk of electric shock or malfunction. Please check the Power Plug and the Power Cord frequently.
WarningProhibited
When inserting or pulling out the Power Plug to and from the Power Outlet, first remove any moisture on your hands and then put in or pull out the Power Plug when holding it.
- Pulling out the Power Plug with wet hands can cause electric shock. • Pulling the power cord by excessive force can damage the Power Cord, causing a short circuit or electric shock. Please check the Power Plug and the Power Cord frequently.
WarningProhibited
Make sure the power cord is not placed under heavy objects or near sharp edges. Take special care to prevent damage from pets.
- Failure to do so may damage the cord and result in electric shock or fire. Please check the power cord regularly.
WarningProhibited
If not using the product for an extended period, supply tap water, close the valve, empty the refrigerant tank, and unplug the power cord.
- Before reuse, fill it with water and empty it again, or run the Immediate Cleansing function. • For more information, see "Checklist Before Use"
WarningProhibited
Always unplug the product before inspection, repair, or replacement of parts.
- There is a risk of malfunction or electric shock. Please check the power plug and power cord regularly.
WarningProhibited
If water enters the power supply area, unplug the product and dry it completely before use.
- Not doing so may cause electric shock or fire. Please check the Power Plug and the Power Cord frequently.
About Installation
WarningProhibited
Do not install where it may be exposed to moisture, excessive dust, or splashing water.
- Install the product in a clean environment.
- Exposure to moisture or dust may cause malfunction, electric shock, or fire.
WarningProhibited
Do not install the product near the bathroom.
WarningProhibited
Do not install the product on an uneven surface or a slope, or on a pad, cushion, blanket or carpet.
- This may cause malfunction, injury, or tipping hazards. Check the product regularly to ensure it is working properly.
- Installing on soft or unstable surfaces may cause damage or fire.
WarningProhibited
Avoid direct sunlight and high temperatures.
- This may cause color changes or discoloration.
- Please check the Power Cord frequently.
WarningProhibited
Make sure the Tap Water Supply Tube does not exceed 16.4 ft (5m) in length from the Tap Water Supply Valve.
- Exceeding this length may reduce the product's performance.
WarningProhibited
Keep at least 8 in (20cm) of clearance from walls and install the product on a solid, level surface.
- Failure to do so may result in poor product performance.
WarningProhibited
Do not install the product in a place where gas may leak or near air conditioners or heaters.
- There is a risk of explosion or fire.
WarningProhibited
Do not store explosive materials, such as aerosol cans with flammable propellants, inside this appliance.
WarningProhibited
Always use the water supply for tap water, and install the Tap Water Supply Valve near The Cold Water Pipe.
- Do not use water sources other than tap water, such as groundwater.
- Filter replacement cycles may vary depending on water quality and usage.
- Installing on a hot water pipe may damage the filter or the product.
WarningProhibited
Avoid installing the product outdoors or in areas where the surrounding temperature drops below 41°F (5°C).
- This may cause the filter, tubing, or other components to freeze, resulting in malfunction.
- The recommended operating temperature is 41–104°F (5–40°C).
WarningProhibited
Do not lift the drain hose (connected to the product) over the surface where the product is installed, or connect it to a water purifier over a distance greater than 9.8 ft (3 m).
- This may cause the drainage function to malfunction
WarningProhibited
When connecting the drain hose to the drain and letting it rest on the floor (e.g., in the kitchen), do not lift it more than 11.8 in (30 cm) from the floor.
- This may cause the drainage function to malfunction.
During Use
WarningProhibited
Do not use the product by placing electric heating appliances such as a microwave, oven, or toaster on top of it, or by placing flammable items like candles, gas containers, or lighters.
- This may cause fire, electric shock, or accidents.
WarningProhibited
Do not place chemicals, water bottles, or small metal objects on top of the product.
- If these enter the product, they may cause fire or damage.
WarningProhibited
When moving the product, do not pull the power cord or connection hose, or grab it by the plug.
- This may cause damage to the product.
WarningProhibited
Do not disassemble or modify the product.
- This may cause fire or electric shock.
- Only authorized service personnel should disassemble or repair the product.
WarningProhibited
This device is not intended for use by individuals (including children) who cannot operate it safely without supervision due to physical, sensory, or mental limitations, or lack of experience and knowledge.
- Educate and supervise children to prevent them from playing with the device.
- This may cause electric shock or injury.
※ Cleaning water is not safe for drinking. Prevent anyone from consuming it.
※ After Cleaning, wash with clean water for over 3 times so that the cleaning water is completely removed.
WarningInstructions
If water leaks from inside the product or forms a puddle nearby, close the Tap Water Supply Valve, turn off the power, unplug the cord, and contact Customer Service.
- There is a risk of electric shock.
WarningInstructions
If you smell burning or see smoke arising from the product, unplug it immediately and close the Tap Water Supply Valve. After that, please contact our Customer Service Center.
- This may cause damage to the product.
WarningInstructions
Be careful when using high-temperature water or hot water.
- Hot water may splash, so ensure it does not come into contact with your body. Use extra caution when the elderly or children are operating the product.
- After stopping or completing the dispensing of hot water, a small amount may drip from the outlet. Remove the cup only after dripping has completely stopped.
WarningInstructions
This product should be installed and removed only by our certified service technicians.
WarningInstructions
The Control Panel is sensitive. Make sure children or others operate it gently and carefully.
- This avoids damage to the product and/or a safety-related accident.
WarningInstructions
When replacing the filter, close the Tap Water Supply Valve (adapter). The Tap Water Supply Valve is typically located below the sink or at the faucet.
- This may cause a water leak.
WarningInstructions
Prevent the air intake hole, air discharge hole, and gaps from being blocked or having foreign substances stuck inside such as a needle, cleaning pin, and metals.
- If you do not do so, this may cause an electric shock or fire.
Cautions for Safe Use
WarningInstructions
Make sure the Cooling Water Tank Cover inside the product and the Top Cover are completely closed before use.
- It's also to keep foreign material away.
WarningInstructions
If the product has not been Used for a long period of time, perform the Instant Auto Cleaning Function once before use.
- Use the Instant Auto Cleaning function to facilitate the cleaning of the pipes and refrigerant tank.
WarningInstructions
Do not use water from the purifier for a fishbowl or fish tank.
- Room temperature water may be unsuitable for fish and could cause harm or death depending on the species.
WarningInstructions
Do not use non-Cuckoo brand water purifier filters.
- Using non-genuine filters can reduce performance, alter water taste, or cause leaks or damage.
WarningInstructions
Replace the filters according to the replacement cycle.
- Failure to do so may result in poor filter performance or unpleasant odor.
WarningInstructions
If gas or propane leaks, do not unplug the product. Instead, immediately open windows for ventilation.
- This may cause a fire or electric shock.
WarningInstructions
Do not tilt the product at an angle of 30° or more when moving it.
- This may affect product performance.
WarningInstructions
If there is moisture on the LCD touch panel or on the top of the faucet, remove it before use.
- Failure to do so may result in reduced performance or product malfunction.
WarningProhibited
Do not clean the product using benzene or thinner.
- This may damage the product.
WarningProhibited
Do not move the product while it is in operation.
- Moving or shaking the product while it's turned on may disconnect the tubing and cause malfunction or water leakage.
WarningProhibited
Do not pull the hose located at the back of the product during operation.
- Doing so may cause water leakage and result in product damage.
WarningProhibited
Do not place magnetic objects on the product.
- Doing so may cause product malfunction.
WarningInstructions
Do not allow children to touch packing material such as styrofoam and vinyl.
- This may cause suffocation.
WarningInstructions
Prevent children from climbing or hanging on the product.
- This may cause the product to tip over and injure the child.
WarningInstructions
Do not connect anything other than the water supply to the Tap Water Supply Pipe.
- Using non-drinking water may cause illness. It can also cause malfunction or shorten the product's lifespan.
WarningInstructions
Do not install the product in a place such as below.
- Outdoors
- A place exposed to direct sunlight
- Near a bathroom
- In front of a cooler or a heater
- On a slope
WarningInstructions
Do not damage the refrigerant circuit.
- This may cause a malfunction of the product.
WarningInstructions
Do not repeatedly turn the hot water dispensing function on and off.
- This may cause a malfunction. In particular, it may produce unexpected steam.
WarningInstructions
To avoid potential risks caused by inadvertently resetting the temperature and overcurrent protection device, this unit should not be powered through an external switching device like a timer. It should not be connected to a circuit that is regularly turned on and off by the equipment.
WarningInstructions
Please exercise caution when using Steam Cleaning.
- During Steam Cleaning, ensure that steam does not come into contact with your skin.(Extra caution is advised for the elderly and children.) Do not hold or remove the cleaning cup during Steam Cleaning.
WarningInstructions
Do not randomly connect devices to reduce pressure in the Hot Water Apparatus Pipe.
- This may cause a malfunction. In particular, it may produce unexpected steam.
This product is designed exclusively for USA: 120V~ / Australia: 230V~ only. Be sure to use an outlet rated for USA: 120V~ / Australia: 230V~ that is properly grounded. When using an extension cord (such as a multi-power outlet), do not connect any other devices to the same cord. Failure to properly ground the unit may result in electric shock or a short circuit. Always use the product with proper grounding.
- If using an outlet with a grounding terminal: You can use the product immediately without any additional steps.
- If using an outlet without a grounding terminal: Check whether an earth leakage breaker is installed. If it is not, install one before using the product. Using the product without an earth leakage breaker may cause a fire.
Part Names and Accessories
Part Names
Main body (Front, back)
- 1Speaker
- 2Filter door
- 3Hot water dispensing
- 4Hot water draining
- 5Cold and room temperature water draining
- 6Cleaning water
- 7Cold and room temperature water dispensing
- 8Tap water
- 9Draining
- 10Power cord
Faucet (Side, top)
※ LCD GUIDE is not a control panel. Applying force may cause damage.
- 1LCD GUIDE
- 2Jog dial
- 3Dispensing outlet
- 4Radar sensor
- 5LCD screen and touch panel
- 6Cleaning water button
- 7Dispense button
Detailed Description of the Display Panel
LCD touch operation names
- Swipe down (Up→down)
- Swipe up (Down→up)
- Swipe right (Left→right)
- Swipe left (Right→left)
- [LCD Center] Button touch
Accessories
-
User Manual
-
Service Card
-
Tubing and installation materials
-
Cleaning Cup
If it is lost, you can contact the Customer Service Center to purchase a new one
Filtration System
※ Using a non-genuine filter or using a genuine filter beyond its recommended lifespan may reduce filtration performance.
How to Install the Product
Video Tutorial

- Install the Tap Water Supply Valve and turn it to CLOSE.
- Please make sure that you use tap water from the water supply. Do not use other water sources, such as groundwater.
- Connect the tap water supply hose to the inlet and the drain hose to the drain.
- Fix the drain hose so that water discharged from the hose does not splash onto the surroundings.
- Do not place the Drain Hose above the installation surface or connect it to the water purifier over a distance of 9.8ft (3m) or greater.
- When connecting the drain hose to the drain while letting the hose touch the floor of the kitchen, etc., do not lift it 11.8-in(30cm) or higher from the floor.
- Turn the Tap Water Supply Valve to OPEN.
- Connect the power.
- Use the Auto Filter Cleaning function to clean the filter.
After the installation has completed, please check if water leaks from the tube connecting parts.
- Tap Water Supply Valve (Tube)
- Tap Water (Inlet) Hose, Drain Hose
- Faucet Connection Hose
※ Installing the product around a sink is recommended.
※ In order to guarantee the optimum performance of the product, consult with the technician of our company about the detailed method of installation.
※ The water used for inspection process during production of the product may remain inside the product. Do not worry as it is not a used product.
※ When installing the product, do not reuse the Tap Water Supply Valve and the tubes that were Used before.
※ During initial installation (filter replacement), operate the Auto Filter Cleaning function for 10 to 15 minutes.
Checklist Before Use
- Open the Tap Water Supply Valve.
- Open the Tap Water Supply Valve, and check if there is water leak on each connection part.
- Tap Water Supply Valves and water (inlet) and drain of the product
- Open the Tap Water Supply Valve, and check if there is water leak on each connection part.
- Turn the Close lever of the filter door on the left side of the product to the CLOSE direction.
- Water is supplied to the water purifier.
- Connect the power.
- This product is exclusively for USA: 120V~ / Australia: 230V~. Please make sure to plug it into a proper outlet.
- Exchange and manage the filter on a regular basis.
- Please clean and replace the filters regularly so that you can always enjoy pure and clean water.
- Regarding the filter replacement cycle.
How to Use
To Set Functions
- It is the mode in which it waits for dispensing cold water, hot water, room temperature water, and cleaning water. The LCD panel turns on according to the selected function and displays the dispensing volume.
- If the product remains idle for 15 seconds, the LCD panel will automatically turn off.
- When the product detects the presence of a person while the LCD panel is off, the screen will automatically turn back on.
▶ While in Standby mode, swipe down (from top to bottom) to enter User Settings Mode and adjust the functions.
| To enter User Settings mode | Function |
|---|---|
| Swipe left (right→left) once | Favorite Flow Settings |
| Swipe left (right→left) 2 times | Flow Mode Settings |
| Swipe left (right→left) 2 times | Voice Volume Settings |
| Swipe left (right→left) 3 times | Mood Lamp Settings |
| Swipe left (right→left) 4 times | Auto Filter Cleaning |
| Swipe left (right→left) 5 times | Screen Rotation Settings |
| Swipe left (right→left) 6 times | Power Save Time Settings |
| Swipe left (right→left) 7 times | Flow Origin Adjustment Settings |
| Swipe left (right→left) 8 times | Draining |
| Swipe left (right→left) 9 times | Cleaning Cycle Settings |
| Swipe left (right→left) 10 times | Cleaning Module Replacement Notification Settings |
| Swipe left (right→left) 11 times | Filter Replacement Notification Settings |
| Swipe left (right→left) 12 times | LCD Center Button Settings |
| Swipe left (right→left) 13 times | Language Settings |
- Press the [Dispense] or [LCD Center] button once to dispense a fixed volume of water.
- Use the [Jog Dial] to select the desired volume. (Half cup → One cup → Two cups → Non-stop → Favorite volume → Repeat)
- Various fixed volumes can be selected through Flow Mode settings.
To Set the Cold Water Function
- If the Cold Water function is turned off, enter Cold Water Settings mode to disable the Cold Water Lock function.
- Swipe up (down → up) on the Cold Water function screen to enter Cold Water Lock Settings mode.
- After entering Cold Water Lock Settings mode, swipe left or right to select Disable Cold Water Lock, then press the [LCD Center] button to confirm.
- If you do not want to use cold water, enter Cold Water Lock Settings mode to enable the Cold Water Lock function.
- Swipe up (down → up) on the Cold Water function screen to enter Cold Water Lock Settings mode.
- After entering Cold Water Lock Settings mode, swipe left or right to select Enable Cold Water Lock, then press the [LCD Center] button to confirm.
※ Stable dispensing of cold water becomes available approximately 1 hour after the Cold Water function is turned on.
※ Product functions are set to "On" by default.
To Use Cold Water
- Swipe left or right on the Standby screen to select the Cold Water function screen.
- The voice guide will say, "Cold water."
- Dispensing a fixed volume
- Turn the [Jog Dial] to select the desired dispensing volume.
- Press the [Dispense] or [LCD Center] button once. Cold water will be dispensed.
- Dispensing will stop when the selected fixed volume is dispensed.
- Pressing the [Dispense] button or any other button during dispensing will stop the dispensing process.
- The dispensing outlet is illuminated when dispensing cold water.
To Use Room Temperature Water
- Swipe left or right on the Standby screen to select the Room Temperature Water function screen.
- The voice guide will say, "Room temperature water."
- Dispensing a fixed volume
- Turn the [Jog Dial] to select the desired dispensing volume.
- Press the [Dispense] or [LCD Center] button once. Room temperature water will be dispensed.
- Dispensing will stop when the selected fixed volume is dispensed.
- Pressing the [Dispense] button or any other button during dispensing will stop the dispensing process.
- The dispensing outlet is illuminated while dispensing room temperature water.
To Set the Hot Water Lock Function
This is a safety feature that prevents accidental use by children and others, protecting users from burns.
If this function is enabled, the [Hot Water] dispensing function will not operate.
- If you do not want to use hot water, enter Hot Water Lock Settings mode and select the Hot Water Lock function.
- Swipe up (down→up) on the Hot Water function screen to enter Hot Water Lock Settings mode.
- After entering Hot Water Lock Settings mode, swipe left or right to select Enable Hot Water Lock and press the [LCD Center] button to confirm.
To Use Hot Water (Standard 100°C(212°F))
- Swipe left or right on the Standby screen to select the Hot Water function screen.
- The voice guide will say, "Hot water."
- Dispensing a fixed volume
- Turn the [Jog Dial] to select the desired dispensing volume.
- Press the [Dispense] or [LCD Center] button once. Hot water will be dispensed.
- Dispensing will stop when the selected fixed volume is dispensed.
- Pressing the [Dispense] button or any other button during dispensing will stop the dispensing process.
- The dispensing outlet is illuminated while dispensing room temperature water.
- The temperature may differ depending on the surroundings and service conditions.
※ Place the cup close to the dispenser to prevent splashing of hot water and reduce the risk of burns.
※ Exercise caution, as the dispensed water may splash due to variations in tap water pressure when dispensing hot water.
※ Caution:
The dispensing outlet may become hot during prolonged or repeated use of hot water (high-temperature water).
To Use the Hot Water Temperature Function (Custom Hot Water)
- How to Use the Hot Water Temperature Function
- Swipe down (up→down) on the Hot Water function screen to enter Hot Water Temperature Settings mode.
- Swipe left or right on the Hot Water Temperature Settings screen, select the desired temperature, and press the [LCD Center] button. 100°C (212°F) → 40°C (104°F) → 50°C (122°F) → 60°C (140°F) → 70°C (158°F) → 80°C (176°F) → Repeat
- After selecting the hot water temperature, press the [Dispense] button once. Hot water will be dispensed at the selected temperature.
- Pressing the [Dispense] button or any other button during hot water dispensing will stop the dispensing process.
※ Hot water temperature level
Six temperature level icons are shown in a row, each displaying 'Temp.' label and a temperature value with dot indicators below: 100°C, 40°C, 50°C, 60°C, 70°C, 80°C.
To Dispense a Fixed Volume of Water
- The fixed volume changes each time you turn the [Jog Dial].
- e.g. In EASY mode: Half cup → One cup → Two cups → Non-stop → Favorite flow → Repeat
- Favorite flow allows users to set and use their preferred flow. for details on how to change the favorite flow.
- After selecting the desired fixed volume, press the [Dispense] button to dispense water at the selected volume.
- You can set the desired Flow Mode in the Flow Mode Settings function. for details on how to use Flow Mode.
To Use Cleaning Water
- Press the [Cleaning Water] button to select cleaning water.
- Press [Cleaning Water] to display the Cleaning Water function screen.
- The voice guide will say, "Cleaning Water Dispensing mode."
- Turn the [Jog Dial] to select the desired volume of cleaning water, then press the [Dispense] button. The selected volume of cleaning water will be dispensed.
- To End Cleaning Water Dispensing
- Press the [Dispense] button or any other button during cleaning water dispensing to stop the process.
- After cleaning water dispensing ends, the flow path pipe cleaning will Begin. The voice guide will say, "Cleaning the flow path. Please wait."
- When finished, the voice guide will say, "Flow path cleaning completed."
※ Cleaning water is not for drinking. Prevent anyone from consuming it.
※ Rinse thoroughly with clean water at least 3 times to remove any remaining cleansing water.
※ For maximum cleaning effectiveness, allow the cleaning water to run for 10 seconds before use. (Cleaning water dispensed within the first 10 seconds may have reduced cleaning effectiveness.)
To Use the Instant Auto Cleaning Function
This function starts auto-cleaning immediately at the chosen time.
- The cleaning method and duration are the same as those of the Auto Cleaning function.
- In Standby mode, press and hold the [Cleaning Water] button for 3 seconds.
- Instant Auto Cleaning will start, and the voice guide will say, "Start flow path cleaning."
- The cleaning image will appear on the LCD screen, and the cleaning progress will be displayed.
- - the progress is shown on the LCD screen.
- To cancel cleaning, press and hold the [LCD Center] button for 3 seconds during auto-cleaning.
- The voice guide will say, "Stop flow path cleaning," and cleaning will be canceled.
- In some cases, subsequent processes—such as draining cleaning water, rinsing, and intake—may follow. It may take some time to return to Standby mode for water dispensing.
To Use Instant Electrolysis Faucet Cleaning and Steam Cleaning
- Place the cleaning cup.
- Rotate the cleaning cup so that it aligns with the dispensing outlet of the faucet, as indicated by the reference line in the image on the right.
- ※ If the cleaning cup is positioned higher than the reference line, it may be difficult to place.
- When the cleaning cup is detected, swipe left or right to select electrolysis Cleaning or Steam Cleaning.
- If [Electrolysis Cleaning] is selected: Electrolysis faucet cleaning will start, and the voice guide will say, "Start faucet cleaning."
- If [Steam Cleaning] is selected: Steam cleaning will start, and the voice guide will say, "Start steam cleaning."
- The cleaning image will appear on the LCD screen, and the cleaning progress will be displayed.
- To cancel cleaning, press and hold the [LCD Center] button for 3 seconds while faucet cleaning is in progress.
- The voice guide will say, "Stop steam or electrolysis faucet cleaning," and cleaning will be canceled.
- Do not remove the cleaning cup immediately after canceling, as water will be dispensed to clean the faucet.
- ※ Remove the cleaning cup only after the machine has stopped operating.
※ Cleaning water is not for drinking. Prevent anyone from consuming it.
※ The Steam Cleaning function can be used once per day.
※ Caution: Steam Cleaning may cause burns due to high temperature.
※ Water droplets may form on the front of the product after Steam Cleaning.
To Use the Hidden Display Function
This function saves power by turning off the display panel and reducing the brightness of the display lamps.
- Entering Hidden Display Mode
- The device will enter this mode after 15 seconds of no button input and no detection of a person in Standby mode.
- You can change the access time for entering this mode in User Settings.
- Exiting Hidden Display Mode
- The device will exit this mode when a person is detected in Hidden Display mode.
- The device will also exit this mode when any button is pressed during Hidden Display mode.
- ※ Water will be immediately dispensed if the [Dispense] button is pressed in Hidden Display mode.
- ※ The human detection sensor will activate when you approach the product from the front. (Sensor sensitivity may vary depending on the installation environment.)
To Use the Full Lock Function
This function prevents accidental inputs or unintended operation by children or others during cleaning. When enabled, all button inputs will be blocked.
- On the Room Temperature Water function screen, swipe up (down → up) to enter Full Lock Settings mode.
- After entering Full Lock Settings mode, swipe left or right to select Enable Full Lock, then press the [LCD Center] button to activate Full Lock.
- To disable Full Lock, select Disable Full Lock and press the [LCD Center] button.
To Change Favorite Flow
- Swipe down (up→down) on the Room Temperature Water or Cold Water function screen to enter Option Settings mode.
- When Entering User Settings mode
- The voice guide will say, "Favorite Flow Settings mode."
- Press the [LCD Central] button to enter the Favorite Flow Settings mode.
- Swipe left or right, or use the [Jog Dial] to set the favorite flow.
- Each left/right swipe changes the flow by 10ml.
- e.g. Swipe left: 350ml→360ml→370ml→ · · · →1500ml
- Swipe right: 350ml→340ml→330ml→ · · · →100ml
- ml shown. oz equivalents for reference: 100ml ≈ 3.4oz / 350ml ≈ 11.8oz / 1500ml ≈ 50.7oz
- Select the desired flow and press the [LCD Central] button to save.
- The voice guide will say, "Setup complete."
To Change Flow Mode Settings
- Swipe down (up→down) on the Room Temperature Water or Cold Water function screen to enter Option Settings mode.
- Swipe left (right→left) once in Option Settings mode and select Flow Mode Settings mode.
- The voice guide will say, "Flow Mode Settings mode."
- Press the [LCD Center] button to enter Flow Mode Settings mode.
- Swipe left or right, or use the [Jog Dial] to set the Flow mode function.
- Each left/right swipe changes the set value.
- e.g. EASY→SMART→CHEF→ · · ·
- Select the desired Flow mode and press the [LCD Central] button to save.
- The voice guide will say, "Setup complete."
※ Mode details
1) EASY: Half cup (120ml), one cup (250ml), two cups (500ml), non-stop (1500ml)
2) SMART: 120ml→200ml→250ml→350ml→500ml→550ml→850ml→1000ml→1500ml
3) CHEF: 100ml→150ml→200ml→ · · · →1000ml→1100ml→ · · · →1500ml
(Increases by 50ml from 100ml to 1000ml, and by 100ml from 1000ml to 1500ml)
To Adjust Voice Volume
- Swipe down (up→down) on the Room Temperature Water or Cold Water function screen to enter Option Settings mode.
- Swipe left (right→left) 2 times in Option Settings mode and select Voice Volume Settings mode.
- The voice guide will say, "Voice Volume Settings mode."
- Press the [LCD Center] button to enter the Voice Volume Settings mode.
- Swipe left or right, or use the [Jog Dial] to adjust the voice volume level.
- Each left/right swipe changes the volume level by one step from the current level. e.g. Level 5 → Mute mode → Button sound → Level 1 → Level 2 → Level 3 → Level 4 → Level 5
- To set the maximum volume, select 5 as the Settings value.
- To disable the voice guide, select Mute mode or Button sound.
- Select the desired voice volume and press the [LCD Center] button to save.
- The voice guide will say, "Setup complete."
To Use the Mood Lamp Function
- Swipe down (up→down) on the Room Temperature Water or Cold Water function screen to enter Option Settings mode.
- Swipe left (right→left) 3 times in Option Settings mode and select Mood Lamp Settings mode.
- The voice guide will say, "Mood Lamp Settings mode."
- Press the [LCD Center] button to enter the Mood Lamp Settings mode.
- Swipe left or right, or use the [Jog Dial] to set the Mood Lamp function.
- Each left/right swipe changes the set value. e.g. ON → OFF → ON
- After selecting the Mood Lamp function, press the [LCD Center] button to save.
- The voice guide will say, "Setup complete."
※ When the Mood Lamp function is turned off, the LED on the [Jog Dial] will turn off.
To Use the Auto Filter Cleaning Function
- Swipe down (up→down) on the Room Temperature Water or Cold Water function screen to enter Option Settings mode.
- Swipe left (right→left) 4 times in Option Settings mode and select Auto Filter Cleaning mode.
- The voice guide will say, "Automatic filter flushing function."
- Press the [LCD Center] button.
- The voice guide will say, "Start Auto Filter cleaning," and auto filter cleaning will start.
- The filter cleaning image will be displayed on the LCD screen, and the filter cleaning progress will be shown.
- When Auto Filter Cleaning is complete, the voice guide will say, "Auto Filter Cleaning complete," and the product will enter Standby mode for water dispensing.
- To cancel Auto Filter Cleaning, press and hold the [LCD Center] button for 3 seconds during auto filter cleaning.
- The voice guide will say, "Auto filter cleaning stopped."
- The Auto Filter Cleaning takes approximately 10 to 15 minutes. Time varies depending on tap water pressure.
- If the voice guide says, "Please check raw water inlet" during cleaning, open the filter door cover on the front of the product and turn the lock lever to the CLOSE position.
To Change the LCD Screen Rotation
- Swipe down (up→down) on the Room Temperature Water or Cold Water function screen to enter Option Settings mode.
- Swipe left (right→left) 5 times in Option Settings mode and select LCD Screen Rotation Settings mode.
- The voice guide will say, "LCD Screen Rotation Settings mode."
- Press the [LCD Center] button to enter the LCD Screen Rotation Settings mode.
- Swipe left or right, or use the [Jog Dial] to adjust the LCD screen angle.
- e.g. 0 degrees → 90 degrees → -90 degrees
- After selecting the screen angle, press the [LCD Center] button to save.
- The voice guide will say, "Setup complete."
To Change the LCD Sleep Time
- Swipe down (up→down) on the Room Temperature Water or Cold Water function screen to enter Option Settings mode.
- Swipe left (right→left) 6 times in Option Settings mode and select Screen Sleep Time Settings mode.
- The voice guide will say, "LCD sleep time setting mode."
- Press the [LCD Center] button to enter the Screen Sleep Time Settings mode.
- Swipe left or right, or use the [Jog Dial] to adjust the LCD sleep time.
- Each left/right swipe changes the LCD sleep time. e.g. 30 seconds → 60 seconds → 15 seconds → 30 seconds
- After selecting the desired LCD sleep time, press the [LCD Center] button to save.
- The voice guide will say, "Setup complete."
To Change the Dispensing Volume
- Swipe down (up→down) on the Room Temperature Water or Cold Water function screen to enter Option Settings mode.
- Swipe left (right→left) 7 times in Option Settings mode and select Flow Correction Value Settings mode.
- The voice guide will say, "Flow Correction Value Settings mode."
- Press the [LCD Center] button to enter the Flow Correction Value Settings mode.
- Swipe left or right, or use the [Jog Dial] to set the flow correction value.
- Each left/right swipe changes the flow correction value. e.g., 5% (dispensing volume increased) → 10% → -10% → -5% (dispensing volume decreased) → 0%
- After selecting the flow correction value, press the [LCD Center] button to save.
- The voice guide will say, "Setup complete."
To Drain the Refrigerant Water
- Swipe down (up→down) on the Room Temperature Water or Cold Water function screen to enter Option Settings mode.
- Swipe left (right→left) 8 times in Option Settings mode and select Refrigerant Water Draining mode.
- The voice guide will say, "Draining function."
- Press the [LCD Center] button to enter Refrigerant Water Draining mode.
- When entering Refrigerant Water Draining mode, refrigerant water will be automatically drained.
Auto Cleaning Cycle Settings Function
- Swipe down (up→down) on the Room Temperature Water or Cold Water function screen to enter Option Settings mode.
- Swipe left (right→left) 9 times in Option Settings mode and select Cleaning Cycle Settings mode.
- The voice guide will say, "Cleaning Cycle Settings mode."
- Press the [LCD Center] button to enter the Cleaning Cycle Settings mode.
- Swipe left or right, or use the [Jog Dial] to adjust the cleaning cycle.
- Each left/right swipe changes the cleaning cycle.
- e.g. 5 days → 7 days → 10 days → OFF → 3 days → 5 days
- After selecting the cleaning cycle, press the [LCD Center] button to save.
- The voice guide will say, "Setup complete."
- ※ When Auto Cleaning is turned off, the Automatic Cleaning function will be disabled.
To Enable the Cleaning Module Replacement Notification Function
- Swipe down (up→down) on the Room Temperature Water or Cold Water function screen to enter Option Settings mode.
- Swipe left (right→left) 10 times in Option Settings mode and select Cleaning Module Replacement Notification Settings mode.
- The voice guide will say, "Cleaning Kit Module Replacement alarm mode."
- Press the [LCD Center] button to enter Cleaning Module Replacement Notification Settings mode.
- Swipe left or right, or use the [Jog Dial] to set the Cleaning Module Replacement Notification function.
- Each left/right swipe toggles between ON and OFF.
- e.g. ON → OFF → ON → OFF → …
- After selecting ON/OFF for the cleaning module usage notification, press the [LCD Center] button to save.
- The voice guide will say, "Setup complete."
- ※ When the function is turned off, cleaning module usage notifications will not be provided.
To Set the Filter Replacement Alarm Function
- Swipe down (up→down) on the Room Temperature Water or Cold Water function screen to enter Option Settings mode.
- Swipe left (right→left) 11 times in Option Settings mode and select Filter Replacement Notification Settings mode.
- The voice guide will say, "Filter replacement alarm setting mode."
- Press the [LCD Center] button to enter Filter Replacement Notification Settings mode.
- Swipe left or right, or use the [Jog Dial] to set the Filter Replacement Notification function..
- Each left/right swipe toggles between ON and OFF.
- e.g. ON→OFF→ON→OFF→…
- After selecting ON/OFF for the filter replacement notification, press the [LCD Center] button to save.
- The voice guide will say, "Setup complete."
- ※ When the function is turned off, filter replacement notifications will not be provided.
To Enable LCD Center Button Dispensing Function
- Swipe down (up→down) on the Room Temperature Water or Cold Water function screen to enter Option Settings mode.
- Swipe left (right→left) 12 times in Option Settings mode and select LCD Center Button Settings mode.
- The voice guide will say, "LCD Central Button Dispensing Function Settings mode."
- Press the [LCD Center] button to enter the LCD Center Button Settings mode.
- Swipe left or right, or use the [Jog Dial] to adjust the LCD Center button function.
- Each left/right swipe toggles between ON and OFF.
- e.g. Dispensing ON→Dispensing OFF→…
- After selecting ON/OFF for the LCD Center Button function, press the [LCD Center] button to save.
- The voice guide will say, "Setup complete."
- ※ When the function is turned off, the [LCD Center] button cannot be used for dispensing.
How To Set Language
- Swipe down (up→down) on the Room Temperature Water or Cold Water function screen to enter Option Settings mode.
- Swipe left (right→left) 13 times in Option Settings mode and select Language Settings mode.
- The voice guide will say, Language Selection Mode.
- Press the [LCD Center] button to enter Language Settings mode.
- Swipe left or right, or use the [Jog Dial] to change the language.
- Each left/right swipe cycles through the available languages.
- e.g.) (English) → (Korean) → (Spanish) → (Mandarin)
- After selecting the desired language, press the [LCD Center] button to save.
- The voice guide will say, "Setup complete."
How To Clean
- Wipe with a soft, dry cloth.
- Before cleaning, enable the Button Lock function to prevent accidental inputs.
- If necessary, use a cloth slightly dampened with water.
- ※Do not use benzene, thinner, or abrasive cleaners.
- Do not spray water directly onto the product.
- ※ Doing so may cause product malfunction.
- Remove the pre-filter from the bottom of the unit for cleaning.
- Wash it with water, then dry and reassemble it.
- ※ Failure to clean the pre-filter regularly may reduce cooling performance.
How To Replace the Filters
How To Replace the Filters (Only use CUCKOO Water Purifier filters.)
Video Tutorial

Filter Replacement Procedure
※ The filter door detection sensor is active. Do not unplug the power cord while replacing the filter.
- Detach the filter door from the main body, as shown in the image.
- Turn the filter guide bracket lock lever on the front of the product to the OPEN position, as shown in the image.
- This shuts off the water supply to prevent water flow during filter replacement.
- Pull the filter guide bracket downward, as shown in the image.
- Lift and pull the filter to remove it.
- While the voice guide is playing, any remaining pressure inside the pipe will be released.
- During filter replacement, water drops may fall depending on the user environment. Wipe off any excess water after replacement.
- Insert the filter as shown in the image and push it into the filter case to connect.
- The filter order is Metal Block 2.0 first, then Nano Positive Plus 3.0, from left to right. Please be mindful of the order.
- Ensure each filter is securely and correctly inserted into the case.
- As shown in the image, pull the filter guide bracket up.
- Turn the filter guide bracket lock lever on the front of the product to the CLOSE position, as shown in the image.
- Water will then be supplied to the water purifier.
- Lock the filter door as shown in the image.
- The groove at the top must be accurately aligned for smooth installation.
- Once the product enters Standby mode, use the Auto Filter Cleaning feature to clean the filter.
- ※ If the voice guide says, "Check the tap water intake" during filter cleaning, turn the lock lever on the filter door to the CLOSE position.
Expected Filter Replacement Cycle / Recommendations
Expected Filter Replacement Cycle
The replacement cycle is based on average usage of 10 L per day in a typical household and may vary depending on water quality.
| Filter Name | Expected Replacement Cycle |
|---|---|
| Metal Block 2.0 Filter | 4 months |
| Nano Positive Plus 3.0 Filter | 8 months |
Recommendations
Filter Replacement Cycle
· Filter replacement cycle refers to a period during which a filter is expected to demonstrate its inherent performance as a result of a thorough review of the filter. This is based on tap water where the inflow water and daily usage amount is about 10L(drinking water for 4 persons) so, if the amount of usage is greater than this, the replacement cycle may become shortened.
Please Check Before Contacting Support
▼ Even if there is no malfunction, the product may not operate correctly if the User Manual is not followed. Please review the checklist below before contacting Customer Service.
| Problem | Checklist | Recommended Actions |
|---|---|---|
| The water has bad taste and/or odor. | • Was the product left idle for a long time? | • Operate the Filter Cleaning function. |
| • Do you need to replace the filters? | • Contact Customer Service for filter replacement. | |
| It fails to dispense water. | • Is the Power Cord connected? | • Connect the Power Cord. |
| • Is the tap water supplied properly? | • Open the Tap Water Supply Valve. • Check if the water supply tube is folded. • Check if water is cut off. | |
| It fails to dispense water. | • Have you pressed the [Dispense] button properly? | • Press the [Dispense] button properly. |
| • Is there water under the product? | • Close the Tap Water Supply Valve, unplug the product, and contact our Customer Service. | |
| It fails to dispense water. | • Do you need to replace the filters? | • Contact Customer Service for filter replacement. |
| It fails to dispense water. | • Is the Filter Door lock opened? | • Close the Filter Door lock on the front of the product. (Water will then be supplied to the product) |
| It fails to dispense cold water. | • Have you dispensed a lot of cold water? | • If a large amount has been dispensed, allow time for the unit to re-cool the water. |
| • Did you close the Tap Water Supply Valve? | • Check the Tap Water Supply Valve. | |
| • Is the ventilation at the back of the unit sufficient? | • Ensure the radiator at the back is not blocked. Remove any obstructions. • Move the product to a place with good ventilation. (Please contact our Customer Service whenever you move and reinstall the product.) • If there is excess dust in the air vents, contact our Customer Service. | |
| The hot water is lukewarm. | • Is it the first cup of hot water? | • When you first operate the Instantaneous Hot Water function, the temperature of the first cup may be low. • Check if the temperature of the hot water is normal from the second cup. |
▼ Even if there is no malfunction, the product may not operate correctly if the User Manual is not followed. Please review the checklist below before contacting Customer Service.
| Problem | Checklist | Recommended Actions |
|---|---|---|
| It does not dispense enough water. | • Is the Tap Water Supply Valve closed? | • Open the Tap Water Supply Valve. |
| • Do the filters need replacing? | • Replace the Filter with a genuine CUCKOO Filter. | |
| • Is the Filter Door lock open? | • Close the Filter Door lock on the front of the product. (Water will then be supplied to the product) | |
| There is a loud noise coming from the product. | • Is the product placed on a flat, firm surface? | • Install the product on a solid, level floor. |
| • Is it touching any other objects? | • Ensure it's not touching other objects. | |
| • Are the back and side surfaces of the product touching the wall? | • Reinstall the product with a proper distance of 7.8 inch(20 cm)from the wall. | |
| • Are there items placed on top (e.g., flowerpots, books, clocks)? | • Remove any objects placed on top of the product. | |
| Floating matter in the dispensed water. | • Do the filters need replacing? | • Replace the Filter. (Do not use a Non-CUCKOO filter.) |
| Fine particles in room temperature water. | • Are there bubbles? | • Close the Tap Water Supply Valve and unplug the product. After that, contact our Customer Service for service. |
| Water is leaking from the purifier. | • Is the assembled (connecting) part defective? | • Close the Tap Water Supply Valve and unplug the product. After that, contact our Customer Service Center for service. |
| • Is your home or the external environment humid? | • Dew condensation may occur when a cold part of the water purifier comes into contact with moisture, similar to water droplets forming on a water glass. |
Product Specifications
| Product Name | CUCKOO Cold/Hot/Room Temperature Water Purifier | ||
| Model Name | CP-AAN100ULDSV (Lumi Dark Silver) CP-AAN100ULWH (Lumi White) | ||
| Rated Voltage | USA : Single Phase 120 V~ / 60 Hz Australia : Single Phase 230 V~ / 50 Hz | ||
| Power Consumption | USA : cold water 90W(0.75A), hot water 1350W(11.25A) Australia : cold water 138W(0.6A), hot water 2400W(10.43A) | ||
| Filtration | Electrostatic adsorption filtration system | ||
| Filter Category | Metal Block 2.0 Filter | Nano Positive Plus 3.0 Filter | |
| Filter Replacement Cycle | 4 months | 8 months | |
| Capacity | Room Temperature Water | Direct water | |
| Cold Water | Direct water | ||
| Climate Class | USA : N / Australia : T | ||
| Product | Main body | Weight | Around 24.2lb(11kg) |
| Main body | Size (W×D×H) | 6.5" x 15.3" x 16.4"(166mm×390mm×418mm) | |
| Faucet | Weight | Around 1.98lb(0.9kg) | |
| Faucet | Size (W×D×H) | 2.4" x 7.3" x 12"(61mm × 187mm × 306mm) | |
| Used Tap Water Pressure | 0.07 ~ 0.69 MPa (0.7 ~ 6.9bar) | ||
| Used Environment Temperature | 41°F - 104°F (5°C - 40°C) | ||
| Used Tap Water Temperature | 41°F - 95°F (5°C - 35°C) | ||
※ Details indicated in this Instruction Manual (exterior, design, and specifications) may change without notice for quality improvement.
※ Manufacturer: Cuckoo HomeSys Co., Ltd.
http://cuckoorental.com
888.700.0425
We provide satisfying consultation and services concerning your complaints, suggestions, and recommendations upon receiving your troubled product model name, status, and contact information.
- After reading this manual, keep it in a place easily accessible to the user for future reference.
- This manual includes the warranty.
- Caution : Please read this manual carefully to ensure safety and a longer product lifespan.
