Sanyo CH0952 Troubleshooting, Check before and after troubleshooting, Check power supply wiring

9. TROUBLESHOOTING

9-1. 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.

9-1-1. Check power supply wiring.

●Check that power supply wires are correctly connected to terminals No. 7 (L1) and No. 8 (L2) on the terminal plate in the outdoor unit.

Indoor	Inter–unit	Outdoor
		unit
unit	power wiring
1		1
2		2
3		3
4		4
5		5
6		6	L1	Power supply :
		7		Single- phase, 60Hz
			L2
	Inter–unit	8		115V.....CH0951,CH1251
				230/208V............CH1852
	control wiring
G	Ground	G G		Ground

9-1-2. Check inter-unit wiring.

●Check that inter-unit wiring is correctly connected to the indoor unit from the 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.

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