Troubleshooting; Trouble Guide - Hisense AMW2-12U4RRA Technical & Service Manual

14.TROUBLESHOOTING

14. Troubleshooting

14.1 Trouble guide

Troubleshooting for Normal Malfunction
Troubleshooting
Air conditioner can not start up
The compressor starts or
stops frequently
Poor cooling/heating
Sound from deforming parts
Water leakage
Possible Reason of Abnormality
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 of
power.
The air inlet and outlet has been
blocked.
1. The outdoor heat exchanger is
dirty, such as condenser;
2. There are heating devices indoors；
3. The air tightness is not enough.
People come in and out too
frequently.
4. Block of outdoor heat exchanger;
5. Improper setting of temperature.
During system starting or stopping, a
sound might be heard. However, this
is due to thermal deformation of
plastic parts.
1. Drainage pipe blocked or broken;
2. Wrap of refrigerant pipe joint is not
closed completely.
56
How to Deal With
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.
Remove block obstacles.
1. Clean the heat exchanger 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.
It is not abnormal, and the sound will
disappear soon.
1. Change drainage pipe.
2. Re-wrap and make it tight.