B. Circuit breaker trips in several minutes after turning the air conditioner on.
●
There is a possibility of short circuit.
9-2-2. Neither indoor nor outdoor unit runs.
A. Power is not supplied.
B. Check "OPERATION lamp" in the indoor unit.
Alarm Signal (*)
Operation lamp on the front side of the indoor unit will flash on and off when either indoor room thermistor or
indoor fan motor is defective.
•
Operation lamp on front side of
indoor unit is flashing on and off. (*)
YES
•
Replace thermistor.
•
Indoor room thermistor is defective.
YES
NO
•
Check power supply.
Power is being supplied to the
outdoor unit.
Circuit breaker
is tripped.
Power failure
Reset breaker.
Wait for recovery
or contact power
company.
Replace with suitable
one (larger capacity).
•
•
•
NO
Check capacity of circuit breaker.
Capacity of circuit breaker is
suitable.
Measure resistance of outdoor fan
motor winding.
Measure resistance of compressor
motor winding.
•
Measure resistance of 4-way valve's
winding.
In case of Heating operation :
To Next Page
Loading...
