Service diagnosis
11
Domestic air conditioner
Code indication
fault description
Reference
Page
Indoor
displaying
panel code
indication
Outdoor
(LED1 flash
times)
Indoor and
Outdoor
E7
15
Communication fault between indoor and
outdoor units
Page.
56
Indoor Malfunction
E1
--
Room temperature sensor failure
Page.
46
E2
--
Heat-exchange sensor failure
Page.
46
.
46
e
g
a
P
r
o
r
r
e
M
O
R
P
E
E
r
o
o
d
n
I
-
-
4
E
E14
--
Indoor fan motor malfunction
Page.
48
Outdoor
Malfunction
.
46
e
g
a
P
r
o
r
r
e
M
O
R
P
E
E
r
o
o
d
t
u
O
1
2
1
F
F1
2
.
51
e
g
a
P
M
P
I
f
o
n
o
it
c
e
t
o
r
p
e
h
T
F22
3
Overcurrent
protection of AC electricity
for the outdoor model
Page .
54
F3
4
Communication fault between the IPM and
outdoor PCB
Page.
53
F19
6
Power voltage is too high or low
Page.
54
F27
7
Compressor is lock-rotor or stopped
momentary
Page
.55
F4
8
Overheat protection for Discharge
temperature
Page.
55
e.
49
g
a
P
tl
u
a
f
r
o
t
o
m
n
a
f
C
D
r
o
o
d
t
u
O
9
8
F
F21
10
Defrost temperature sensor failure
Page.
46
F7
11
Suction temperature sensor failure
Page.
46
F6
12
Ambient temperature sensor failure
Page.
46
F25
13
Discharge temperature sensor failure
Page
.46
e.
47
g
a
P
t
n
a
r
e
g
ir
f
e
r
f
o
tr
o
h
S
6
1
3
1
F
F11
18
deviate from the normal for the compressor
Page.
58
F28
19
Loop of the station detect error
Page.
58
F2
24
Overcurrent of the compressor
Page.
54
F23
25
Overcurrent protection for single-phase of the
compressor
Page.
54
E9
21
High work-intense protection
Page.
59
4
5
