Troubleshooting; Check Before And After Troubleshooting - Technibel MCAF92R5TA Technical Data & Service Manual

6. TROUBLESHOOTING

6-1. 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.
6-1-1. Check power supply wiring.
G Check that power supply wires are correctly connected to terminals L and N on the terminal plate in the indoor
unit.
6-1-2. Check inter-unit wiring.
G Check that inter-unit wiring is correctly connected to the outdoor unit from the indoor unit.
6-1-3. Check power supply.
G Check that voltage is in specified range (±10% of the rating).
G Check that power is being supplied.
6-1-4. Check lead wires and connectors in indoor and outdoor units.
G Check that coating of lead wires is not damaged.
G Check that lead wires and connectors are firmly connected.
G Check that wiring is correct.
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