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Error list
Failure Type
Indoor and outdoor communication failure
Outdoor communication failure
Indoor room temperature sensor (IRT)
Indoor coil temperature sensor (IPT)
Outdoor coil temperature sensor (OPT)
IPM over current protect
Compressor phase-deficient operation
Model configuration wrong
Indoor fan motor fault
Outdoor temperature sensor
Exhaust temp. sensor
IPM drive and module fault
Outdoor fan motor fault (DC motor)
Current sensor fault
Indoor EEPROM fault
Outdoor EEPROM fault
Temp. switch fault ( on top of the
compressor)
Voltage sensor fault
Suction temperature sensor fault
Outlet temperature sensor A fault
Outlet temperature sensor B fault
Inlet temperature sensor A fault
Inlet temperature sensor B fault
Protection display code list:
Protection Type
lower voltage protection
Overcurrent protection
Discharge over temperature
protection
Too cool protection in cooling mode
Overheat protection in cooling mode
Overheat protection in heating mode
Outdoor over temperature
/ lower temperature protection
Drive protection (software control )
Module protection (hardware control)
Model different
Water full protect
High pressure protection
◎
○
●
--light
--off
Outdoor failure display
Air Conditioner Service Manual
Indoor LED
—flash
CASSETTE
Indoor LED
Code
LED1 LED2 LED3 LED4
●
E0
◎
EC
●
E1
●
E2
●
E3
●
E4
●
E5
●
E6
◎
E7
◎
E8
◎
E9
◎
EF
◎
EA
◎
EE
◎
EE
-
EP
○
EU
-
EH
○
Ey
○
En
CASSETTE
Code
LED1 LED2 LED3 LED4
○
●
P1
○
●
P2
○
○
P4
-
-
P5
○
○
P6
○
○
P7
-
-
P8
-
-
P9
-
-
P0
●
●
PA
●
○
D3
H1
-
-
Outdoor light
blink time (n)
●
●
◎
◎
●
●
●
●
◎
●
◎
◎
●
●
◎
◎
●
◎
●
◎
◎
◎
◎
◎
●
●
●
●
●
◎
●
◎
●
◎
◎
◎
●
◎
◎
●
◎
◎
●
◎
◎
-
-
-
●
●
◎
-
-
-
●
◎
●
●
◎
◎
Outdoor light
blink time (n)
●
○
○
●
●
●
-
-
○
●
○
○
-
-
-
-
-
-
○
○
○
◎
-
-
7
15
25
26
10
40
34
29
21
9
11
30
16
13
27
19
8
12
18
47
48
51
52
2
3
4
32
5
33
31
6
1
-
-
-
12
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