Outdoor Dc Fan Motor Fault - Haier 2HUM18HC03/R2 Service Manual

Outdoor DC fan motor fault

7.3.4
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.
2HUM18HC03/R2(DB)-SM
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
53
Wiring diagrams
N0
Domestic air conditioner