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6.2.2 The indoor and outdoor units do not work.
6.2.3 Only outdoor unit does not work:
Check the set
temperature
.
1. The set temperature is too
high for cooling operation.
2. It is too low for heating
operation.
Adjust the set
temperature.
Measure the voltage between
terminal No.1 and No.2 on the
terminal block (220V
±
10%)
PCB Ass’ y of indoor unit is defective.
Outdoor unit
is defective.
Yes
Ok
No voltage indication.
Check power supply
Check if something residue cover
on transmitting part of the remote
controller.
1. Power failure
2. Check the breaker.
Clean it
.
Check if infrared receiver on
indoor unit is dirt.
Clean it.
Check fuse on indoor PCB Ass’ y.
Check the resistance of fan
motor coil of indoor unit.
Parts of indoor PCB Ass’ y or
switches are defective.
Measure the resistance of
power transformer.
No
No
No
No
Yes
Yes
Yes
Yes
