9. TROUBLESHOOTING
9-1. Check before and after troubleshooting
9-1-1. 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.
9-1-2. Check inter-unit wiring.
●
Check that inter-unit wiring is correctly connected between indoor unit and outdoor unit.
9-1-3. Check power supply.
●
Check that voltage is in specified range (±10% of the rating).
●
Check that power is being supplied.
9-1-4. 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.
GROUNDING LINE
6
L
N
5
4
3
2
1
TERMINAL
7
6
5
4
3
2
1
TERMINAL
INDOOR UNIT
OUTDOOR UNIT
GROUNDING
LINE
POWER SUPPLY
1PHASE 220-240VAC 50Hz
Inter–unit wiring
43
WARNING
Hazardous voltage can cause ELECTRIC SHOCK or
DEATH. Disconnect power or turn off circuit breaker
before you start checking or servicing.