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10.4.4
Outdoor DC fan motor fault
Outdoor display
F8 LED1 flash 9 times
Method of
DC fan motor is detected by checking the fan running condition and so on
Detection
Malfunction
When the detected rotation feedback signal don't received i n2 minutes
Decision
Conditions
■ DC fan motor protection dues to the DC fan motor faulty
Supposed
■ DC fan motor protection dues to faulty PCB
Causes
Trouble
* Caution: Be sure to turn off power switch before connect or disconnect connector,
shooting
or else parts damage may be occurred.
Check whether terminal
on the outdoor mainboard
is well inserted.
Electrify the machine again and
turn it on in the cooling state with
the remote control. Check
whether the motor could run.
Remove fan motor after switch off
the power. Measure the
resistances between black line
and red line, between black line
and white line of the fan motor
It is normal
YES
NO
NO
Reinsert the terminal
YES
The motor and outdoor PCB
are well
37
Service Diagnosis
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