Haier 4U85S2SR2FA - Page 240

237
[9] DC Fan Motor Failure
Replace wire and test again
Check if fan motor wires are
conductive(to CN11 of PCB)
Check if motor is
running
Power off and rotate fan
motor by hand to check
if there is obviously
friction
Test the terminial
voltage if black and red
is 280~350V and black
and whiter is 15V
Replace PCB
Replace fan motor
Replace PCB
Y
N
Y
Y
N
Y
N
N
Replace fan motor