6
6
.
.
T
T
R
R
O
O
U
U
B
B
L
L
E
E
S
S
H
H
O
O
O
O
T
T
I
I
N
N
G
G
A
A
S
S
-
-
1
1
8
8
U
U
R
R
4
4
S
S
T
T
V
V
U
U
H
H
1
1
23
Error code 39
Indoor fan motor trouble
Is indoor fan motor running?
Set the air conditioner operate
in fan mode
Does fan motor stop with the
remote controller
Check the connector of
indoor motor
Does the socket CN1(1-3) of
indoor control board
have power input
Indoor control board faulty
and replace it
Is resistance of main winding
0?(short circuit) or
~
?(open
circuit)?
Replace the indoor fan
motor
Insert screwdriver into to rotate
indoor fan motor slowly for 1
revolution or over, and measure
voltage CN2(1-3)
Does voltage repeat DC 0V and
DC 5V?
no
yes
yes
no
yes
yes
no
no
no
yes
Summary of Contents for AS-18UR4STVUH1
Page 1: ...AS 18UR4STVUH1...
