Check Of Lev; Check Of Inverter P.c. Board - Mitsubishi SUZ-KA18NA2 Service Manual

K Check of LEV
Start
Turn on power supply to the outdoor unit after checking
Is "click - click" sound heard?
Or, do you feel vibration of the LEV coil with a hand?
No
Disconnect the connector CN724 is there nor-
mal resistance to LEV coil?
No
Replace the LEV coil.
L Check of inverter P.C. board
Check the outdoor fan motor.
(Refer to "10-5. . Check of outdoor fan motor".)
Is the fuse (F901) blown on the inverter
P.C. board?
No
Check the connection of the connectors
(CN931, CN932) of the outdoor fan motor.
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.
OCH688A
Normal
Yes
Replace the inverter P.C. board.
Yes
Yes
Check the corresponding parts
No
following LED indication.
(Refer to "10-3. HOW TO PR-
CEED "SELF-DIAGNOSIS"".)
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