Haier Super Match Series Service Manual page 369

11.4.4 Outdoor DC fan motor fault
Outdoor diplay
Method of
malfunction detection
Malfunction detection
conditions
Supposed causes
Troubleshooting
Check whether Terminal on the outdoor
mainboard is well inserted.
Electrify the machine again and turn
it on in the Cool state with the remote
controller. check whether motor can
run？
Measure the voltage between 3 and 6 of
the terminal about 0-5v.
the motor of the outdoor unit is damaged
and needs replacing.
LED1 flash 9 times
DC fan motor is detected by checking the fan running condition and so on
when the data of EEPROM is error or the EEPROM is damaged
■
DC fan motor protection dues to the DC fan motor faulty
■
DC fan motor protection dues to faulty PCB
* Caution
Be sure to turn off power switch before connect or disconnect connector,
may be occurred.
Is it normal?
Yes
Yes
Is it normal?
N0
NO Reinsert the terminals
NO
Measure the voltage between 1 and 3 of the terminal of
fan motor on the mainboard about DC310V,Measure
the voltage between 3 and 4 of the terminal about
DC15V. Measure the voltage between 5 and 3 of the
terminal about 1-6v.
Yes
Is it normal?
Yes
The mainboard of the outdoor unit is
damaged and needs replacing.
368
Seivice diagnosis
or parts damage
N0
Domestic air conditioner