Troubleshooting
Malfunction
Possible Causes
Solutions
The device gets slippery or
works in irregular pattern.
A. Glass is too dirty or too wet.
B. Cleaning pad is too dirty or too
wet.
A.Change cleaning pad
B. Cleaning the driving treads
C. Use remote control to manually restart it.
Red indicator light.
A. Check if the cleaning pad is attached properly, replace it
correctly.
B. Check if any crack on the glass.
C. Check if the glass frames are with uneven area/rubber
part. If there is
uneven area or uneven rubber part on the glass, use remote
control to
operate the device manually and keep the W 120 away from
the
uneven area/uneven rubber part when cleaning.
The devices can't be started
after switched on, or works in
irregular pattern.
Edge detection sensor abnormal.
A. Remove the Cleaning Pad and reattach
it making sure it is placed exactly within its Velcro area and
does not
cover the Edge Detection Sensors.
B. Open APP on your phone, connect it with the robot and
any RED indications on the corners of APP interface (Red
indications on
the APP interface means the edge sensor is malfunctioned).
C. Edge detection sensors failure, contact after-sales service.
buzzer beeps once/second.
Improper connection of Power
Supply.
Check if the plug is connected well, or the screws of the
extension cables are placed tight.
Both Red and Blue indicator
Hardware failure.
Contact after-sales service.
Remote control does not work.
A. No battery inside or battery has
low power;
B. Remote control is broken.
A. Change the battery.
B. Replace the remote control with new one.
The device got stuck on glass
frames.
Edge-detection misjudgement.
A. Press STOP on remote, move the device to reachable
B. Pull the robot lightly to reachable location if can't remote
control it.
Both Red and Blue Light on, no
beeps.
The device is not sucking
properly on window.
Put the device on window surface manually, make sure it
sucks on the window properly.
Buzzer beeps twice when it's in
use.
Edge sensor detects frameless
glass.
It's normal if it is cleaning frameless glass.
Squeaky sound when it's in
use.
Glass is too dry or edge detection
sensors are too dirty.
A. Spary a little water on the cleaning cloth.
B. Clean the edge detection sensors and operate again.
The device doesn't return to
Starting Point after cleaning.
The glass surface 's friction index
Use remote control to direct the device return to reachable
location.
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