9-2-2. Neither indoor nor outdoor unit runs.
A. Power is not supplied.
B. Check remote control unit.
C. Check "OPERATION selector" switch in the indoor unit.
D. Check transformer in indoor unit.
• Measure resistance of primary and
secondary winding.
(TR)
YES
NO
• OPERATION selector switch is set
in ON position.
Set OPERATION selector switch
to ON.
Indoor PCB Ass'y is defective.
OK
• Try to run with another remote
control unit.
First remote control unit is defective.
• Check for residue buildup on
transmitter of remote control unit.
• Check for residue buildup on remote
control receiver on front of indoor
unit.
Clean transmitter.
Clean receiver.
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.
24
