Haier HSU09VHGDB-W Service Manual

HSU12HG(DB)-SM Service Diagnosis
53
Domestic Air Conditioner
Yes
No
Yes
Is rotation number
command pulse
generated?
Is rotation number
command voltage
DC16V generated?
Yes
Yes
No
No
Yes
Replace indoor unit PCB
Replace fan motor
Replace indoor
unit PCB
Replace indoor fan motor
PCB
NO
Replace indoor unit PCB
Is motor control power
voltageDC15V
generated?
NO
Does fan rotate
smoothly?
NO
Turn power ON and operate fan
Does it rotate?
Yes
Turn off power supply and disconnect fan
motor connector, then turn power ON
Check output of fan motor connector
Is motor power
voltage DC310V
generated?
Replace fan motor
Stop fan motor
Turn off power supply and rotate
fan by hand

Haier HSU09VHGDB-W Specifications

General

Brand	Haier
Model	HSU09VHGDB-W
Category	Air Conditioner
Language	English