Troubleshooting, 1. check before and after troubleshooting – Sanyo C0951 User Manual

Page 47

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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 No. 5 and No. 6 on the terminal plate

in the outdoor unit.

Hazardous voltage can cause ELECTRIC SHOCK or

DEATH. Disconnect power or turn off circuit break-

er before you start checking or servicing.

WARNING

INDOOR

INDOOR UNIT

Terminal

Disconnect
switch
(Field supply)

1
2

3

1
2
3

4
5
6

G

G

Grounding
line

Power supply line
C0951, CL0951.......1-phase, 115 V
C1251, CL1251.......1-phase, 115 V
C1852, CL1852.......1-phase, 230/208 V

(Inter-unit)
Power lines

Terminal

OUTDOOR UNIT

Fuse

L1
L2

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.

000-215 SM (1-56) 7/19/00 3:47 PM Page 44

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