Mitsubishi Electric MXZ-2F33VF -E1 Service Manual page 169

• 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 LEV connectors.
Is there normal resistance to LEV coil?
(Refer to 12-5.)
No
Replace LEV coil.
*1
LEV
LEV MXZ-2F
Connector
CN724 LEV A
CN725 LEV B
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CN791 LEV A
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CN792 LEV B
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CN793 LEV C
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CN794 LEV D
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CN795 LEV E
―
CN796 LEV F
―
CN797 LEV R
OBH790H
*
1
MXZ-4F72
MXZ-3F MXZ-4F83VF
MXZ-4F80VF
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169
Connector MXZ-2F
CN724
Inverter P.C. board
CN725
CN791
CN792
CN793
―
CN794
CN795
CN796
CN797
Yes
Yes
MXZ-5F MXZ-6F
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MXZ-3F, 4F, 5F,6F
2F53/4F83VFHZ
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Outdoor control
P.C. board
Normal
Replace the outdoor
control P.C. board.
MXZ- MXZ-
2F53VFHZ 4F83VFHZ
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