14. TROUBLESHOOTING
14. Troubleshooting
14.1Trouble guide
Troubleshooting for normal malfunction
Possible Reasons of A bnormality
Air conditioner can not start up
1. Power supply failure;
2. Trip of breaker or blow of fuse；
3. Power voltage is too low;
4. Improper setting of remote
controller ;
5. Remote controller is short ofpower.
1. Check power supply circuit;
2. Measure insulation resistance to
ground to see if there is any
leakage;
3. Check if there is a defective contact
or leak current in the power supply
circuit;
4. Check and set remote controller
again;
5. Change batteries.
The compressor starts or stops
frequently
The air inlet and outle t have
been blocked.
Remove obstacles.
1. T he outdoor heat exchanger is dirty,
such as condenser;
2. T here are heating devices indoors;
3. T he air tightness is not enough, and
people come in and out too
frequently;
4.
Block of outdoor heat e xchanger;
1. Clean the heat e xchanger of the
outdoor unit, such as condenser ;
2. Remove heating devices;
3. Keep certain air tightness indoors;
4. Remove block obstacles;
5. Check and try to set temperature
again.
Sound from deforming parts
It is not abnormal, and the sound will
disappear soon.
1. Drainage pipe is blocked or broken;
2. Wrap of refrigerant pipe joint is not
closed completely.
1. Change drainage pipe;
2. Re-wrap and make it tight.
Improper setting of temperature.
During system starting or stopping, a
sound might be heard.However, this is
due to the normal deformation of
plastic parts.
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