Haier HSU-18HEA03/R2(DB)-I

HSU-18HEA03/R2(DB)-I
Service Diagnosis
Domestic Air Conditioner
61
Does fan rotate
VPRRWKO\"
NO
Yes
TuUQSRZHU21DQGRSHUDWHIDQ
Does it rotate?
No
Yes
Turn o ff SRZHU VXSSO\ and d isconnect
fan motor connectorWKHQ turn SRZHU
Check outpue of fan motor connector
Is motor SRZHU v oltage
DC310 9 gengerated ?
NO
Yes
Stop fan motor
Check output of fan
motor connector
Is rotation number
command pulse
generated?
Is motor c ontrol SRZHU
YROWDJH'&9JHQHUDWHG?
Is rotation number
commamd voltage
DC19 generated?
NO
Yes
Yes
No
No
Turn o ff SRZHU s XSSO\
DQGURWDWHIDQE\KDQG
Replace fan motor
Replace indoor unit PCB
Replace indoor unit PCB
Replace fan
motor
Replace indoor unit PCB
Replace indoor
unit PCB