Mitsubishi Electric MXZ-2A30VA - E1 Service Manual page 133

• 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.
CN791: LEV A, CN792: LEV B, CN793: LEV C,
CN794: LEV D, CN795: LEV E, CN796: LEV F.
Is there normal resistance to LEV coil?
(Refer to 13-5.)
No
Replace LEV coil.
Yes
Normal
Yes
Replace the inverter P.C. board or
the outdoor electronic control P.C. board.
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