Service manual
39
13.4 Malfunction Stat.
PROBLEM CAUSE REMEDY
Power failure Check the power cord.
Wiring failure Check the wiring. Replace the terminates or wires if failure.
Transformer failure
Check the input and the output on transformer. Replace if
failure.
Indoor PCB failure Replace after checked failure.
Cross flow fan failure
Loose screws Tighten them.
Worn bearings Replace after checked failure.
Motor failure
Replace the motor if knocking sounds continue when
running or loose, or the motor hums or noise appears to be
internal while running.
Fan blade failure
Replace the fan blade if cracked, out of balance, or partially
missing.
Loose screws Tighten them.
Motor failure
Replace the motor if knocking sounds continue when
running or loose, or the motor hums or noise appears to be
internal while running.
Compressor failure
Replace the compressor if sounds coming from inner of the
compressor.
Copper tubing
Remove the cabinet and carefully rearrange tubing not to
contact cabinet, compressor.
Display board or
indoor PCB failure Replace the display board. If it is still false, replace the PCB.
Battery failure
Check the voltage of battery. Replace batteries if the voltage
is lower than 2.3V.
Remote control
failure
Normally, the remote control is not easy to damage. If the
above two methods are not effectual, replace the remote
control.
Lack of refrigerant
Check leakage. Recycle the refrigerant. Correct and
recharge if there is any leakage in the refrigerant system.
Soft starter module
failure
Check the module and the capacitor connected to the
module. Replace if failure.
Overcurrent protector
failure
Check the resistance of compressor overcurrent protector.
Replace if failure.
Outdoor PCB failure Replace after checked failure.
Compressor
protection
Not operating
Indoor abnormal
noise.
Outdoor abnormal
noise.
Remote control
failure.
To Next Page
Loading...
Need help?
General
