PuRuiKai PRK-M8 Window Cleaning Robot

The product is based on the actual item inside the packaging. Thank you for purchasing this product, please read the manual carefully before using it.

1. Important Safety Matters and Warnings

1.1. Attention! Must read before use

1. Do not allow children to operate this product. Users with physical, sensory, or psychological illnesses, as well as those who lack understanding of the product's functions and operations, must use it under the supervision of fully capable users after being familiar with the usage process and safety risks. Children should not use this product as a toy.

2. This product is only used to clean glass with frames. If the silicone rubber edge of the window glass frame is damaged, please pay special attention to prevent the machine from leaking air and falling off during the cleaning process. Users must observe the usage scenario to ensure the safe and reliable use of the product.

1.2. Safety matters

• Please use the original adapter! (Using a non-original adapter may cause product failure or damage the product.)
• Make sure the adapter has enough space for ventilation and heat dissipation during use. Do not wrap the power adapter with other objects.
• Do not use the adapter in a humid environment. Please do not touch the power adapter with wet hands during use.
• Please charge the window cleaner at the voltage that the power adapter can withstand.
• Do not use a damaged power adapter, charging cable or power plug. Before cleaning and maintaining the machine, the power plug must be unplugged and do not disconnect the power by unscrewing the extension cord to prevent electric shock.
• Do not disassemble the power adapter; if the power adapter is faulty, replace the entire power adapter. For assistance and repair, contact your local customer service or distributor.
• This product battery if not handled properly, there is a risk of combustion or chemical discretion injury to the body. Please do not disassemble the battery, so as not to cause a short circuit. Please do not use in fire and high temperature environment above 60℃.
• Please hand over the used battery to the local professional waste battery product recycling center for recycling, the disposal and recycling of used batteries must comply with national laws and regulations.
• Do not immerse this product in liquids (such as beer, water, drinks, etc.) or leave it in a humid environment for a long time.
• Do not expose this product to sunlight and keep this product away from heat sources (such as radiators, heaters, microwave ovens, gas stoves, etc.).
• Do not place this product in a strong magnetic scene.
• Please store this product out of reach of children.
• Please use this product in 0℃~40℃ (32℉~104℉) ambient temperature.
• Do not clean damaged glass and objects with uneven surface, this product will not produce enough vacuum suction adsorption on uneven surface or damaged glass machine.
• The built-in battery of this product can only be replaced by the manufacturer or designated dealer / af ter sales center to avoid danger.
• Before removing the battery or handling the battery, the power must be disconnected.
• Please operate this product in strict accordance with the instructions, if any property damage and pers-onal injury caused by improper use, the manufacturer is not responsible for any.

1.3. Risk of electric shock

• Make sure the power is completely disconnected and the machine is off before cleaning the body or maintaining the body.
• Do not drag the power plug through the extension cord, power off should be properly unplugged.
• Do not continue to use the product if the machine is damaged/the power supply is damaged.
• Machine is damaged, please contact your local after-sales center or dealer for repair.
• Do not use water to clean the machine body and power adapter.
• Do not use this product in dangerous areas such as open fire, bathroom with water flowing from the open nozzle, by the swimming pool, etc.
• Do not damage or twist the power cord. Do not put heavy objects on the power cord or adapter to avoid damage.

1.4. Warnings

1. Before operation, make sure to attach the safety rope and tie it securely to a stable indoor unit.
2. Before turning on the machine, check the safety rope for damage and secure knotting. Make sure there is no damage and that the knot is secure before using the product.
3. When cleaning the glass of a window or door without a blocking table, please set up a safety warning area downstairs.
4. Fully charge the built-in backup battery before use (green light on).
5. Do not use in rainy or wet weather.
6. Turn on the machine first and then place it on the window glass.
7. Make sure the machine is safely attached to the window surface before releasing your hands.
8. Before turning off the machine, please hold the machine to avoid dropping it.
9. Do not use this product to clean frameless windows or glass.
10. Make sure the cleaning cloth is properly attached to the bottom of the machine to prevent air leakage when the window cleaner is adsorbed.
11. Do not spray the machine or the bottom of the machine. spray water only on the cleaning cloth.
12. Do not allow children to use the machine.
13. Please remove any items on glass surface before use.
14. Please let hair, loose clothes, fingers or other parts of body keep distance with the working parts of machine.
15. Do not use the machine in area of flammable and explosive solids or gases.

2. Product Description & Parameters

1. The Window Cleaning Robot has a vacuum motor, which can make the machine adsorb on the glass surface and walk freely on the vertical glass surface. Power failure protection (backup battery) can supply power to the equipment to prevent the equipment from falling due to power failure.

2. Window Cleaning Robot has two well-designed cleaning wheels with suction cup, has walking and cleaning functions. The cleaning wheel can absorb and walk on the vertical glass surface. The cleaning cloth on the cleaning wheel can be easily removed and replaced. The cleaning cloth is made of microfiber cloth. the cleaning result is very good.

3. The Window Cleaning robot has artificial intelligence, can plan the path, detect the frame, and automatically clean the entire window. Manual remote control mode, you can freely control the robot.

4. The Window Cleaning robot is upgraded with more advanced artificial intelligence technology, with a more fashionable appearance and a lighter and thinner body. It has better cleaning performance in more different home environments.

2.1. Product specification

2.2. Host and accessories

The accessories included with the host are: Adapter + power cord, Cleaning cloth, Safety rope, Adding water bottle, User manual, and Remote control.

3. Product Component Name

The robot features a water tank, cleaning ring, water spout, remote control receiving window, one-button start, power socket, and a safety rope hanging hole. The cleaning cloth is attached to the bottom.

LED light indicators: Blue light signifies the robot is normal, while a Red light indicates a robot abnormality.

3. The remote control

Do not charge the remote control battery, disassemble it, or expose it to fire, as there is a possibility of detonation. Use only AAA/RL batteries of the same specification. Do not mix different types of batteries. When installing or removing batteries, push down the remote control cover, open the battery cover, and align the negative pole with the spring. Reverse installation is invalid. New and old batteries or different models cannot be mixed.

Remote control functions:

4. Use Steps

4.1. Install the cleaning cloth

According to the diagram, ensure the cleaning cloth is correctly placed on the cleaning ring to prevent air leakage.

4.2. Add water

Please do not add any other cleaning agents to the water tank. Turn the machine over, open the silicone cover, and add clean and impurity-free water. Do not fill the water tank completely (80% is sufficient) to maintain stable air pressure.

4.3. Attach a safety rope

Please check whether the safety rope is damaged and whether the knot is loose before using. Be sure to fasten the safety rope before using, and tie the safety rope to the fixed objects in the house to avoid danger.

4.4. Power connect

Insert the DC connector into the power interface of the machine, and tighten the nut. Connect the AC plug to the adapter. Connect the power supply.

4.5. Robot charging

Information About Mechanical switch: This is a device that realizes circuit switching through manual operation and is the power control switch of the robot. Mechanical switches better protect internal battery life. When you turn off the switch, the internal battery doesn't work, and the robot is easier to operate, safer, and lasts longer. The built-in battery is for standby power supply in case of power failure. Please make sure the battery is fully charged before use. First turn on the power switch on the robot, connect the power cord, and the red light is on, indicating that it is in the charging state. When the red light is off, it means the battery is fully charged.

6. Start the robot

Turn on the power switch ?. Press and hold the start button for 2 seconds, and confirm that the fan ? rotates. Put the machine on the glass and keep a certain distance from the window frame. Make sure that the robot can be attached to the glass, and then let go.

5. Cleaning function

5.1. Intelligent path planning modes

Describes various cleaning paths: Climb to the top and then automatic clean (⬆️), Auto clean from right to left (➡️⬅️), and Auto clean from left to right (⬅️➡️).

5.2. Dry wipe

For the first time you wipe, without spraying water (Turn off the water spray function ?), first remove the sand on the surface of the glass. If you spray some water (detergent) on the cleaning cloth or glass first, the water (detergent) will mix with the sand and turn into yellow mud, and the wiping effect will be poor. When the machine is used in sunny or low-humidity weather, dry wipe is the best.

5.3. Spray function

The window cleaning robot has two water holes. When the robot cleans to the left, the left side sprays water; when the robot cleans to the right, the right side sprays water.

Automatic water spray ?: When the robot starts cleaning, the automatic water spraying mode is turned on by default, with intermittent automatic water spraying. Press the AU button on the remote control, and the robot will make a beep ?, indicating that the automatic water spray mode is turned off. Press the AU button on the remote control again, the robot will make two beeps, and the automatic water spray mode has been turned on.

Manual water spray ?: When the window robot is cleaning, press the button on the remote control and spray water once.

5.4. Power failure protection (UPS)

In the event of power failure, the robot will start the built-in backup battery power, which can last for 10 minutes (when the battery is fully charged). In the event of power failure, the machine will stay in place and will not move forward. The blue lights will flash and will emit a warning sound ?. Pull the robot back to safe position as soon as possible to avoid falling from the glass due to the power failure. Use the safety rope ? to gently pull the device back, when pulling the safety rope, keep it as close to the glass as possible to avoid falling.

5. Cleaning completed

When the robot is in pause, hold the window robot with one hand and press the button for 2 seconds with the other hand until the motor stops rotating. Remove the window cleaning robot. Turn off the power switch ? (to extend the life of the backup battery). Unhook the safety cord ? and safety clasp and unplug the power supply. Pour out the remaining water and place the machine and its related accessories in a dry and ventilated environment for next use.

6. Troubleshooting

• When the cleaning cloth is used for the first time (especially in the dirty environment of the outer window glass), the robot may run slowly or even fail:
  A. When unpacking the robot, clean with a clean cleaning cloth.
  B. Spray a little water or glass water evenly on the cleaning cloth or the surface of the glass to be wiped.
  C. After the cleaning cloth is dampened and wrung out, put it into the cleaning ring of the machine for use.
• The robot will test itself at the beginning of operation. If it can not run smoothly and there is a warning sound, it means that the friction is too large or too small:
  A. Whether the cleaning cloth is too dirty.
  B. The efficient of friction of glass stickers and fog stickers is relatively low, so they are not suitable for use.
  C. When the glass is very clean, it will be too slippery.
  D. When the humidity is too low (air conditioning room), the glass will be too slippery after wiping for many times.
• When pressing the up automatic cleaning button ⬆️, the machine can't detect the upper edge of the window due to the sliding of the upper edge of the window:
  Please press the ➡️⬅️ or ⬅️➡️ button to switch to auto clean mode.
• The robot cannot wipe the upper left side of the glass:
  You can use the remote control manual window cleaning mode to wipe the part that has not been wiped (sometimes the glass or cleaning cloth is slippery, the width of the wiped glass is larger, and the top line slides a little, resulting in the upper left position can not be wiped).
• The machine can't clean the windows completely, but finish the cleaning work ahead of time:
  You can press ➡️⬅️ or ⬅️➡️ auto window mode to continue the unfinished part.
• Possible reasons for slipping and not climbing when climbing:
  A. The friction is too small. The friction coefficient of stickers, thermal insulation stickers or fog stickers is relatively low.
  B. The cleaning cloth is too wet. When the glass is very clean, it will be too slippery.
  C. When the humidity is too low (air conditioning room), the glass will be too slippery after wiping for many times.
  D. When starting the machine (press ⬆️, ➡️⬅️, or ⬅️➡️), please place the machine at a distance from the window frame to avoid wrong judgment.
• After cleaning, round wheel marks remain on the glass surface:
  The cleaning cloth is too dirty. Please replace it with a clean cloth and wipe it again.
• The robot doesn't run smoothly. Possible reasons:
  A. The cleaning cloth is too dirty. Please replace it.
  B. There are different areas on the glass surface (glass area, sticker area, thermal insulation sticker area or fog sticker area). Please use it in a single area.
  C. If the screw of the cleaning wheel is loose, please lock it (do not lock it too tightly, otherwise it may affect the glass glue thickness at the bottom of the window frame or the performance of the beveled window frame).
• How to deal with the warning sound and red light flashing when the robot stops operation due to power failure:
  A. Gently pull the safety rope ? back to the robot; when pulling the safety rope, it should be close to the parallel glass as far as possible to avoid falling.
  B. Turn off the robot power switch ?.
  C. Check the wire for poor contact or broken wire.
• The robot stops when encountering unknown obstacles ?, the red light flashes and there is no warning sound. How to deal with it:
  A. Let the robot back to safe position via remote control or gently pull the safety rope ? back to the robot, when pulling the safety rope, it should be close to the parallel glass as far as possible to avoid falling.
  B. Remove the obstacles on the window.
  C. Check if there is the reason caused air leak.
• There are arc marks ✨ on the polished glass when the light is shining at night:
  For the first time, please turn off the water spraying function ? and use a clean cloth to remove the sand. For the second wipe, clean and replace the clean cloth, turn on the water spraying function, or keep the upper cleaning wheel clean and dry, and spray a little detergent or alcohol on the lower cleaning wheel (1 or 2 spray), which can not be completely wet, and can eliminate the arc trace. All wet cleaning cloth will affect the operation of the.
• The robot has cleaned all the windows, but it can't stop automatically:
  Please press the ⏹️ button to stop the operation.
• The robot will not spray water ?:
  A. Please confirm whether the water spray function switch is on.
  B. Clean the ultrasonic nozzle with a clean soft cloth.
  C. Please check the water tank whether there is water and whether the added cleaning solution is clean and pure.