Haier HSU-12HSA03 - Page 54

Haier air conditioner Edition: 20070116
- 54-
F19: Power voltage is too high or low
Check whether the voltage
between P and N of Terminal
CN7 of the outdoor is below
120vDC or u
p
400
v
DC.
The IPM module is damaged
and needs replacing
Check whether there is voltage
of 187-260VAC between
Positions 1 and 2 on the terminal
b
l
oc
k
o
f
t
h
e outdoo
r
u
ni
t
.
Check power supply
Check whether there is voltage of
187-260VAC between Positions 2
and 4 on the rectifying bridge of
t
h
e
outdoo
r
u
ni
t
.
The reactor of outdoor is
damage and replaces a new
one
The rectifying bridge or IPM
module is damage and replaces
a new one.
No
Yes
Yes
No
No
Yes