Technibel MCAF92R5TA Technical Data & Service Manual page 30

•
There is a possibility of short circuit
•
Check capacity of circuit
breaker.
Capacity of circuit breaker is
suitable.
•
Measure resistance of outdoor
fan motor winding
•
Measure resisatnce of
compressormotor winding
6-2-2 Neither indoor nor outdoor unit runs
A. Power is not supplied
•
Check power supply.
Power is being supplied to the
indoor unit
B. Check "Push bottom" selector in the indoor unit.
•
Push the button switch under the
indoor unit pannel.
NO
Replace with suitable one
(lager capacity)
In case of Heating operation:
•
Circuit breaker i
tripped
Power failure
The indoor unit
and outdoor unit
doesn't runs
30
Measure resistance of 4-way
valve's winding
Reset breaker
Wait for recovery
or contact power
company
Indoor PCB Ass'y
is defective