User manual

Page 14 of 16
Trouble Shooting
Do not repair or disassemble the unit by yourself, unauthorized repair attempts will invalidate
the warranty and may cause bodily harm.
Trouble Reason Solution
The unit does
not work
No power supply Power-on and turn on the unit.
Water-full indicator illuminated Drain the internal water tank
Timer function is active Cancel Timer function
Room temperature too low or
too high
Use only in ambient temperatures
between 7-40℃
The unit does
not seem to
perform.
In direct sunlight Draw the curtains, UV affects RC
Windows or doors open.
Large amount of people or a
heat source in the room.
Close windows and turn on another
air conditioner
Filter is very dirty Clean or change the air filter
Air inlet or air outlet is blocked Clear out debris
Room temperature is lower
than setting temperature
Change the setting temperature
The unit loud
The unit is not put on flat
surface
Put the unit on flat and hard surface
Compressor
does not
work
Overheating protection is
active
Check venting.
Restart the unit after 5 minutes
when compressor has cooled
Remote
control
doesn’t work
Operating distance is too far. Move remote control closer to the
unit and make sure it aims at the
air-outlet grille
Control panel has not received
the signal from remote control.
The batteries are flat Replace the batteries
E1 on LCD
Coil temperature is abnormal
Refer to Service Centre
(check coil temperature sensor or relevant
circuit)
E2 on LCD
Room temperature is abnormal
Temperature not within 5-40 C operating range.
If temperature within operating range refer to
Service Centre
(check room temperature sensor or relevant
circuit)
E3 on LCD
No refrigerant or there is very little
refrigerant
Refer to Service Centre (check leakage,
wielding, vacuum pump, charge refrigerant
according to name plate)
E4 on LCD
Anti-freezing protection
Waiting for defrosting.
Function will recover automatically. No user
input needed.
P2 on LCD
Water tank is full inside the machine
Drain out water from drain port at bottom rear
of the unit.
F1 on LCD High pressure protection
After inside gas pressure comes down, it will
function normally. No user input needed
If the above solutions do not resolve the problem please contact the service centre.