Check Of Lev - Mitsubishi Electric MXZ-2F33VF-E1 Service Manual

• When cooling, heat exchanger of non-operating indoor unit frosts.
• When heating, non-operating indoor unit gets warm.

Check of LEV

Turn ON the power supply to the outdoor unit after checking LEV
coil is mounted to the LEV body securely.
Is "click - click" sound heard?
Or, do you feel vibration of LEV coil with your hand?
No
Disconnect the connectors.
CN724: LEV A, CN725: LEV B (MXZ-2F)
CN791: LEV A, CN792: LEV B,
CN793: LEV C (MXZ-3F/4F),
CN794: LEV D (MXZ-4F),
CN797: LEV R (MXZ-3F/4F)
Is there normal resistance to LEV coil?
(Refer to 12-5.)
No
Replace LEV coil.
OBH790
Connector
CN724
CN725
CN791
CN792
CN793
CN794
CN795
CN796
Yes
Normal
Yes
Replace the outdoor control P.C. board.
76
MXZ-2F MXZ-3F/4F
Inverter P.C. board
Outdoor control
P.C. board
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