Service manual

39
Check of inverter P.C. board
N
Outdoor fan motor does not operate, or stops immediately after starting up.
Yes
(10-time flash)
Yes
Check the LED indication on
the inverter P.C. board.
Does the LED flash 10-time?
No
No
Is the fuse (F901) blown on
the inverter P.C. board?
Replace the inverter P.C. board.
CN931
CN932
Inverter P.C.board
(Solder side)
Check the corresponding parts
following LED indication.
(Refer to 11-4.)
Operate the outdoor unit by starting
EMERGENCY OPERATION.
Check the connection of the connectors.
(CN931, CN932) of outdoor fan motor.
If the connection is poor, make it correct.
Check the outdoor fan motor.
Refer to11-6.I.
MUZ-FA25VA (Serial No : 5002651T~)
MUZ-FA25VAH(Serial No : 5000401T~)
MUZ-FA35VA (Serial No : 5003001T~)
MUZ-FA35VAH(Serial No : 5000401T~)
OB372D --2qxp 07.5.7 4:49 PM Page 39