Sanyo SAP–K91AA–S Technical & Service Manual page 28

10-2-2. Neither indoor nor outdoor unit runs.
A. Power is not supplied.
• Check power supply.
Power is being supplied to the
outdoor unit.
B. Check remote control unit.
• 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.
C. Check "OPERATION selector" switch in the indoor unit.
• OPERATION selector switch is set
in ON position.
Set OPERATION selector switch
to ON.
D. Check transformer in indoor unit.
• Measure resistance of primary and
secondary winding.
NO
Does not run.
OK
YES
NO
(TR)
Circuit breaker
is tripped.
Power failure
Refer to Step C below.
Clean transmitter.
Clean receiver.
Switch Ass'y or indoor PCB Ass'y
is defective.
24
Reset breaker.
Wait for recovery
or contact power
company.