Sanyo C2462R, CL2462R service manual 1032XS

12. SERVICE PROCEDURES

2) Air Conditioner does not Operate

1Circuit breaker trips (or fuse blows).

(a)When the circuit breaker is set to ON, it is tripped soon.

•There is a possibility of ground fault.

•Check insulation resistance.

If resistance value is 2 MΩ or less, it is a defect of insulation.

(Example)

Circuit breaker

	1
		Outdoor
			unit
		L1		1
	+
		L2		2
Power	+
		G		G
supply			4
cords

Ground

2	3
				Indoor
	4			unit
+		+		1
+				2
	+
				G
+			+
				4
Inter-unit
power line

*Set the circuit breaker to OFF.

1Remove power supply cords

from the terminal plate in	NO
the outdoor unit.

•Check insulation resistance of power supply cords.

OK

2Remove inter-unit power line

from the terminal plate in	NO
the outdoor unit.

•Check insulation resistance of outdoor unit.

OK

3 Remove inter-unit power line	NO
from the terminal plate in
the indoor unit.

•Check insulation resistance of indoor unit.

OK

Inter-unit power lines are defective.

Execute

rewiring.

Insulation of outdoor unit is defective.

Insulation of outdoor unit is defective.

Execute

rewiring.

•Check insulation resistance of electrical parts

in the outdoor unit.

•Check insulation resistance of electrical parts in the indoor unit.

1032_X_S

SM830092

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