GD Midea Refrigeration Equipment Elite Series Technical & Service Manual page 23

PROBLEM
LED failure
No display on
Remote control shut the
indoor unit.
display
No power
Wiring
Temperature setting
Mode setting
No cooling or
Soft starter module failure
heating.
Reverse valve solenoid
coil
Reverse valve
Water drainage failure
The indoor unit is incorrect
Water drops from installed
indoor unit
Drainage pipe blocked
The humidity in room is
too high
Wiring failure
Wire EMC
Zero-crossing
Outdoor PCB failure
error
Outdoor transformer
failure
Insufficient
Indoor PCB failure
cooling or heating.
Indoor PCB failure
CAUSE
Replace the display if checked failure.
Push the button to turn the display on.
Check the voltage. Call an electrician if not within the limit.
Check the terminals. Repair and correct if loose.
Check and adjust the temperature setting.
Check and adjust the mode setting.
Check the module and the capacitor connected to the
module. Replace if failure.
Check the reverse valve solenoid coil. Replace the coil if
short, open or damaged.
If the reverse valve is blocked, the heating mode will not
perform. Replace the reverse valve after checking the
reason.
Check the drainage pipe and repair if failure.
Correct the installation if not correct.
Correct it.
It's normal if the humidity in the room is over 85%.
Check wiring. Correct if wrong wiring or loosen.
Check wiring. Correct if the commucication wire is not
shielded wire or twisted with other wires.
Replace if the LED is not on.
Replace if failure.
Replace the PCB if the photon coupling on indoor PCB is
failure.
Replace after checked failure.
REMEDY
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