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Troubleshooting
for E8 malfunction
Outdoor and indoor heat
exchangers are too dirty or the air
inlet/outlet is blocked.
n o
Fan motor is not working.
Abnormal fan speed; fan speed is too low
or the fan doesn't run.
n o
Compressor doesn't work
normally. Strange noise or leakage occurs.
Casing is too hot.
n o
System is blocked inside
(dirt block, ice block, oil block, Y-valve not
fully open).
n o
Temperature sensor of main board
can't detect correctly.
n o
Replace a main
board with the
same model.
End
Clean the outdoor and indoor heat exchangers
yes
and remove blockage of air inlet/outlet.
n o
Check motor and re-install the motor
yes
to make it run normally.
n o
yes
Make compressor run normally.
n o
Remove blockage in the system.
yes
n o
Replace the temperature sensor.
yes
n o
Malfunction is
yes
eliminated.
Malfunction is
yes
eliminated.
Malfunction is
yes
eliminated.
Malfunction is
yes
eliminated.
Malfunction is
yes
eliminated.
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