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7
. TROUBLESHOOTING
7
-1. Check before and after troubleshooting.
7
-1-1. Check power supply wiring.
●
Check that power supply wires are correctly connected to terminals No. 1 and No. 2 on the 3P terminal plate in
the outdoor unit.
7
-1-2. Check inter-unit wiring.
●
Check that inter-unit wiring is correctly connected to the indoor units from the outdoor unit.
7
-1-3. Check power supply.
●
Check that voltage is in specified range (±10% of the rating).
●
Check that power is being supplied.
7
-1-4. Check lead wires and connectors.
●
Check that coating of lead wires is not damaged.
●
Check that lead wires and connectors are firmly connected.
●
Check that wiring is correct.
WARNING
Hazardous voltage can cause ELECTRIC SHOCK or DEATH.
Disconnect power or turn off circuit breaker before you start
checking or servicing.
