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Mitsubishi ilmalämpöpumput huoltaa ja korjaa: Jäähdytinpalvelu RefGroup Oy
L Check of inverter P.C. board
MUZ-FD25/35
Check the outdoor fan motor.
(Refer to 11-5. .)
Is the fuse (F901) blown on the in-
verter P.C. board?
No
Check the connection of the connectors
(CN932) of the outdoor fan motor.
If the connection is poor, make it correct.
Operate the outdoor unit by starting
EMERGENCY OPERATION.
Check the LED indication on the in-
verter P.C. board.
Does the LED fl ash 10 times?
Yes
(10-time fl ash)
Replace the inverter P.C. board.
Yes
Inverter P.C. board
(Solder side)
CN932
Check the corresponding parts
following LED indication.
No
(Refer to 11-3.)
45
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