
15
No. Question
category Analysis of cause Troubleshooting
1
The air outlet does
not blow air or
①The machine is not powered
on or it is not switched on;
②The air intake is obstructed
or the blades are too dusty;
③The fan is not running;
①Check the power supply or connection, power on
properly and switch on the machine;
②Clean the debris from the air intake and regularly
clean the dust from the blades with a brush;
③
2
The unit does
not cool or
performance is
poor
①It is not in Cooling Mode;
②The ambient temperature is
already at the set temperature;
③It is outside the usable
ambient temperature range or
near the upper limit;
④The machine is mounted
incorrectly so that the air inlets
and outlets are blocked;
⑤The compressor is not
running;
⑥Refrigerant leakage;
⑦Capillary tubes are clogged;
①Check that the operating mode and temperature
are set correctly;
②Refer to the operating temperature range in
the user manual. It is normal for the machine to be
under a heavier load when the ambient temperature
③Refer to the user manual to ensure the air
conditioner is installed correctly;
④
⑤If the compressor is operating normally, there
may be a refrigerant leakage or the capillary tubes
may be clogged. Consult a professional for service;
3The fan is not
running
①There is a fault with the fan;
②The fan wiring is
disconnected or the power
cable is broken;
③The fan is damaged;
④The main board is damaged;
①Check the screen for error codes, rectify the
fault and try again;
②Check the fan wiring;
③
damaged;
④
is a fault;
4The compressor is
not running
①There is a fault with the
compressor;
②The compressor wiring is
disconnected or the power
cable is broken;
②The main board is damaged;
③The compressor is damaged;
①Check the screen for error codes, rectify the
fault and try again;
②Check the compressor wiring;
③
is a fault;
④If the above items are all normal, the problem is
most likely with the compressor. The compressor
winding resistance can also be checked and it can
be checked for abnormal noise, etc. before referring
to a professional for service;
4. Frequently Asked Questions