Sanyo SAP-K77RAX Technical & Service Manual page 45

(2) Circuit breaker trips in several minutes after turning the air conditioner on.
There is a possibility of short circuit.
1. Check capacity of circuit breaker.
2. Is capacity of circuit breaker
suitable ?
Measure resistance of outdoor fan
motor winding.
Measure resistance of compressor
motor winding.
9-2-2. Neither indoor nor outdoor unit runs.
(1) Power is not supplied.
1. Check power supply.
2. Is power being supplied to the outdoor
unit ?
Replace with suitable
No
one (larger capacity).
In case of Heating operation :
Measure resistance of 4-way valve's
winding.
Circuit breaker
is tripped.
No
Power failure
45
Reset breaker.
Wait for recovery
or contact power
company.