Troubleshooting; 11-1.Check Before And After Troubleshooting; Check Power Supply Wiring; Check Inter-Unit Wiring - Sanyo SAP-KM97GHS5A Technical & Service Manual

11.TROUBLESHOOTING

11-1. Check before and after
troubleshooting
WARNING
Hazardous voltage can cause ELECTRIC
SHOCK or DEATH. Disconnect power or turn
off circuit breaker before you start checking
or servicing.

11-1-1.Check power supply wiring.

Check that power supply wires are correctly connect-
ed to terminals No.1 and No.2 on the 3p terminal
plate in the outdoor unit.

11-1-2.Check inter-unit wiring.

Check that inter-unit wiring is correctly connected to
the indoor unit from the outdoor unit.
11-1-3.Check power supply.
Check that voltage is in specified range
(±10% of the rating).
Check that power is being supplied.
11-1-4.Check lead wires and connectors in
indoor and outdoor units.
Check that coating of lead wires is not damaged.
Check that lead wires and connectors are firmly con-
nected.
Check that wiring is correct.
Outdoor
unit
1
2
Terminal
plate B
1
2
3
4
5
6
7
8
Terminal
plate A
1
2
3
4
5
6
7
8
28
Power supply:
220V–240V~50Hz
Ground
Inter-unit
Indoor
power wiring
unit B
1
2
3
4
5
6
7
Inter-unit
control wiring
Inter-unit
Indoor
power wiring
unit A
1
2
3
4
5
6
7
Inter-unit
control wiring