Page
16
of
18
TROUBLESHOOTING
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.
Ft displayed on screen
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
5-35
℃
The unit does
not seem to
perform.
In direct sunlight
Draw the curtains, UV affects performance
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 the
desired temperature set
Change the desired temperature set
The unit is loud The unit is not sited on flat surface
Put the unit on flat surface. Carpet under the
unit can prevent vibrations.
Compressor
does not work
Overheating protection is active
Check venting.
Restart the unit after 5 minutes when the
compressor has cooled
Remote control
doesn’t work
Operating distance is too far.
Move the remote control closer to the unit and
make sure it is aimed at the air-outlet grille
Control panel has not received the
signal from remote control.
The batteries are flat
Replace the batteries
Ft on LCD
Water tank is full inside the machine
Drain out water from the drain port at bottom
rear of the unit.
Pf on LCD
Room temperature is abnormal
Temperature not within 5-35 C operating
range. If temperature within operating range
clean the filters
Lt on LCD
Anti-freezing protection
Waiting for defrosting.
Function will recover automatically. No user
input needed.
High pressure protection
After inside gas pressure comes down, it will
function normally. No user input needed
Water leakage
Internal blockage. Clean filters.
Use permanent drainage if very humid
environment or in heating/ dehumidifier
mode
If the above solutions do not resolve the problem please contact the service centre.
Содержание AC12000E
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