Check Of Lev; Check Of Inverter P.c. Board - Mitsubishi Electric SUZ-M25VA Technical & Service Manual

I Check of LEV
Start
Turn on power supply to the outdoor unit after checking
LEV coil is fixed to the LEV body securely.
Is "click - click" sound heard?
Or, do you feel vibration of the LEV coil with a hand?
Disconnect the connector CN724 is there nor-
mal resistance to LEV coil?
Replace the LEV coil.
J Check of inverter P.C. board
Check the outdoor fan motor.
(Refer to .)
Is the fuse (F901) blown on the in-
verter P.C. board?
No
Check the connection of the connectors
(CN931, CN932) of the outdoor fan mo-
tor.
If the connection is poor, correct it.
Operate the outdoor unit by starting
EMERGENCY OPERATION.
Check the LED indication on the in-
verter P.C. board.
Does the LED blink 10 times?
Yes
(10-time blink)
Replace the inverter P.C. board.
OCH684
No
Yes
No
Yes
Check the corresponding parts
following LED indication.
No
(Refer to "11-3. HOW TO PRO-
CEED "SELF-DIAGNOSIS"".)
Normal
Yes
Replace the inverter P.C. board.
36