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Compressor and / or outdoor fan motor doesn't operate.
Check of outdoor unit
D
Start
Operate the unit in COOL or HEAT mode by pressing the
EMERGENCY OPERATION switch.
3-minute time delay works.
Test run operation operates for 30 minutes.
Is there 5V DC between
J205
P.C. board? w1
Is there 220-240V AC
between 3 on the compressor
contactor(52C) and N on the
outdoor terminal block.
Check the compressor and compressor
capacitor, and rectify the connecting wire.
Outdoor fan motor
doesn't operate.
Is there 5V DC between
J205
P.C. board? w1
Check the outdoor fan motor
and rectify the connecting
wire.
Compressor and/or outdoor fan motor doesn't stop.
E
Check of outdoor unit
1 Turn OFF the power supply.
2 After 30 seconds, turn ON the power supply again.
3 Operate the unit in COOL or HEAT mode by
pressing the EMERGENCY OPERATION switch for 1 minute or more.
4 Stop it by pressing the EMERGENCY OPERATION switch twice or once.
After 30 seconds,
does compressor stop?
After 30 seconds, does
outdoor fan motor stop?
Compressor
doesn't operate.
No
+
–
- J101
on the deicer
Yes
No
Yes
No
+
–
- J101
on the deicer
Yes
Is there 220-240V AC between 3 on
No
the compressor contactor(52C) and N on
the outdoor terminal block?
Yes
Ok
No
Yes
Ok
Is there 220-240V AC between 4
on the compressor contactor (52C) and
TAB20 on the deicer P.C. board? w1
Yes
Replace the
deicer P.C. board.
Replace the
deicer P.C. board.
Is there 220-240V AC between
4 on the compressor contactor (52C)
on the deicer P.C. board? w1
Yes
Replace the
deicer P.C. board.
Yes
Replace the
deicer P.C. board.
Replace the
deicer P.C. board.
46
Rectify the indoor/outdoor
connecting wire.
No
No
Is there 220-240V AC between
2–N on the outdoor terminal block.
Yes
Rectify the connecting wire.
Rectify the indoor/outdoor
connecting wire.
No
No
Is there 220-240V AC between
2–N on the outdoor terminal block.
Yes
Rectify the connecting wire.
w1 Refer to page 50.
No
Rectify the connecting wire.
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