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Check of LEV
No
Yes
No
Yes
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 ?
Disconnect the connectors.
MXZ-2B
CN791: LEV A, CN792: LEV B, CN795: LEV E
MXZ-3B/4B
CN791: LEV A, CN792: LEV B, CN793: LEV C,
CN794: LEV D(
MXZ-4B
only), CN796: LEV F
Is there normal resistance to LEV coil ?
(Refer to 11-5.)
Normal
Replace the outdoor electronic control P.C. board.
Replace LEV coil.
• When cooling, heat exchanger of non-operating indoor unit frosts.
• When heating, non-operating indoor unit get warm.