8. TROUBLESHOOTING
8-1. Check before and after troubleshooting
8-1-1. Check power supply wiring.
●
Check that power supply wires are correctly connected to terminals L and N on the terminal plate in the outdoor
unit.
8-1-2. Check inter-unit wiring.
●
Check that inter-unit wiring is correctly connected to the outdoor unit from the indoor unit.
8-1-3. Check power supply.
●
Check that voltage is in specified range (±10% of the rating).
●
Check that power is being supplied.
8-1-4. 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 connected.
●
Check that wiring is correct.
1
Indoor
unit
Outdoor
unit
2
4
L
N
Power
supply
Ground
Inter-unit
wiring
Ground
1
2
4
Power supply:
50Hz,single-phase
220-240V
19
WARNING
Hazardous voltage can cause ELECTRIC SHOCK or
DEATH. Disconnect power or turn off circuit breaker
before you start checking or servicing.
