Sanyo STB1220C1 User Manual download pdf (Page 34)

B. Circuit breaker trips in several minutes after turning the air conditioner on.

●

There is a possibility of short circuit.

7-2-2. Neither fan motor nor compressor motor runs.

A. Power is not supplied.

B. Check "MODE selector" on the control panel.

C. Check transformer.

(Only for heat pump model)

•

Check continuity of primary and

secondary winding to see if the lead

wires are disconnected.

•

Check that MODE selector switch is

not set at "OFF".

Check PCB Ass'y.

If it is set at OFF.

Set to "COOL"

or "HEAT".

Set to "COOL".

(Cooling only models) and

(Cooling & electric heating models)

(Heat pump model)

•

Check power supply.

Power is being supplied to the unit.

Circuit breaker

is tripped.

Power failure

Reset breaker.

Wait for recovery

or contact power

company.

Replace with suitable

one (larger capacity).

•

Check capacity of circuit breaker.

Capacity of circuit breaker is

suitable.

Measure resistance of fan motor

winding.

Measure resistance of compressor

motor winding.

•

Measure resistance of 4-way valve's

winding.

(Only for heat pump model)

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Sanyo STB1220C1 User Manual Page 34

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