Sanyo C2462R Technical Data & Service Manual page 40

12. SERVICE PROCEDURES
2) Air Conditioner does not Operate
1 Circuit 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 M or less, it is a defect of insulation.
(Example)
Circuit
breaker
Power
supply
cords
*Set the circuit breaker to OFF.
Remove power supply cords
1
from the terminal plate in
the outdoor unit.
• Check insulation resistance
of power supply cords.
Remove inter-unit power line
2
from the terminal plate in
the outdoor unit.
• Check insulation resistance
of outdoor unit.
3
Remove inter-unit power line
from the terminal plate in
the indoor unit.
• Check insulation resistance
of indoor unit.
Inter-unit power lines are
defective.
1 2 3
Outdoor
unit
4
L1 1
L2 2
G G
4
Inter-unit
power line
Ground
NO
OK
NO
OK
NO
OK
Indoor
unit
1
2
G
4
Execute
rewiring.
Insulation of
outdoor unit
is defective.
Insulation of
outdoor unit
is defective.
Execute
rewiring.
– 40 –
• Check insulation
resistance of
electrical parts
in the outdoor unit.
• Check insulation
resistance of
electrical parts
in the indoor unit.
1032_X_S
SM830092