9. TROUBLESHOOTING
9-1. Check before and after
troubleshooting
9-1-1. Check inter-unit wiring.
●
Check that inter-unit wiring is correctly connected to the
indoor unit from the outdoor unit.
9-1-2. Check power supply.
●
Check that voltage is in specified range
(±10% of the rating).
●
Check that power is being supplied.
9-1-3. 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.
60
WARNING
Hazardous voltage can cause ELECTRIC
SHOCK or DEATH. Disconnect power or turn
off circuit breaker before you start checking
or servicing.
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