Troubleshooting
Please check the unit and suggestions below before asking for professional service, but never
dismantle or repair the unit by yourself, it may cause harm to you and your property.
Trouble
Cause
Remedy
The unit fails to start up
Power supply failure
Connect the unit to a live socket and
turn it on.
Water-full and its indicator lighting up
Drain the water stored in the unit.
Ambient temperature too low or too
high
It is recommended to use this unit
between 5-35
℃
The room temperature is lower than
the set temperature in cooling mode.
Change the set temperature
Bad cooling effects
There is direct sunlight
Close the curtain
The doors and windows are open, the
room is crowded or there are other
heat sources
Close the door and window, remove
other heat sources, and add new
air-conditioners
Dirty filter
Clean or replace the filter.
Air inlet or air outlet clogged
Remove the obstruction
High noise level
The unit is being placed at uneven
surface.
Put the unit at a flat and firm place
(may reduce noise)
The compressor does
not work
Initiation of overheat protection.
Wait for 3 minutes until the
temperature decrease, then re-start
the unit
The remote control
does not work
Too long distance
Bring the remote control close to the
air-conditioner and ensure airs at
signal receptor on unit.
The remote control didn’t aim at
signal receptor on unit.
The batteries have no electricity
Replace the batteries
LED displays error
code “E1”
Tube temperature sensor failure
Check the tube temperature sensor
and related circuits
LED displays error
code “E2”
Room temperature sensor failure
Check the room temperature sensor
and related circuits
LED displays error
code “E4”
Anti-freeze protection
Restore the functions automatically
once anti-freeze protection is over.
Water-full indicator
lights
The water in chassis is full
Drain the water and re-start the unit
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