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MXZ-3C24NA3 Service Manual

ManualsBrandsMitsubishi ManualsAir Conditioners23600 BTU Cooling / 25000 BTU Heating 20 SEER 208/230 Volt Two Zone Mini Split Package with Wall Mount Evaporators
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Check of LEV
• When cooling, heat exchanger of non-operating indoor unit frosts.
• When heating, non-operating indoor unit gets warm.
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-2C
CN791: LEV A, CN792: LEV B,
CN797: LEV R (MXZ-2C20NA2, MXZ-2C20NA3,
MXZ-2C20NA4)
MXZ-3C/4C/5C
CN791: LEV A, CN792: LEV B, CN793: LEV C
CN794: LEV D (MXZ-4C/5C),
CN795: LEV E (MXZ-5C),
Is there normal resistance to LEV coil?
(Refer to 12-5.)
Normal
Replace the outdoor control P.C. board.
Replace LEV coil.
CN791
CN792
CN793
CN794
CN795
CN797
Outdoor
control
P.C. board
OBH702M