[
IX
Troubleshooting ]
- 35 -
HWE20020
GB
7. DC fan motor (fan motor/indoor controller board)
Notes
· High voltage is applied to the connecter (CNMF) for the fan motor. Give attention to the service.
· Do not pull out the connector (CNMF) for the motor with the power supply on.
(It causes trouble of the indoor controller circuit board and fan motor.)
Self check
Symptom : The indoor fan cannot turn around.
No
NG
NG
Wiring contact check
Contact of fan motor connector (CNMF)
Check the fuse (FUSE) on indoor
controller board.
Power supply check (Remove the connector (CNMF))
Measure the voltage in the indoor controller circuit board.
TEST POINT : V
DC
(between 1 (+) and 4 (-) of the fan connector): V
DC
DC310~340V
TEST POINT : V
CC
(between 5 (+) and 4 (-) of the fan connector): V
CC
DC15V
Wiring recovery
Replace indoor controller board.
Replace the fan motor.
Replace indoor controller board (I.B).
Replace fan motor (MF).
Replace indoor
controller board.
Replace the fan motor.
Is the voltage normal?
Is there no contact failure?
Yes
Yes
No
Did the fuse blow?
No
Yes
Check the operation of fan.
END
Yes
OK
Check the operation.
END
OK
Check method of DC fan motor (fan motor/indoor controller circuit board)
1
2
1
2
HWE20020.book 35 ページ 2020年11月27日 金曜日 午前10時45分
Содержание PEA-M200LA
Страница 1: ......
Страница 3: ...HWE20020 GB HWE20020 book 2 ページ 2020年11月27日 金曜日 午前10時45分 ...
Страница 47: ... XII Optional parts 44 HWE20020 GB HWE20020 book 44 ページ 2020年11月27日 金曜日 午前10時45分 ...
Страница 48: ......