TCL Air Conditioner Service Manual
Error list
Failure Type
Indoor LED
Code
CASSETTE
Outdoor light
blink time (n)
LED1 LED2 LED3 LED4
Indoor and outdoor communication failure
E0
●
● ●
◎
7
Outdoor communication failure
EC
◎ ◎
●
●
15
Indoor room temperature sensor (IRT)
E1
● ● ◎ ●
25
Indoor coil temperature sensor (IPT)
E2
● ● ◎ ◎
26
Outdoor coil temperature sensor (OPT)
E3
● ◎ ● ●
10
IPM over current protect
E4
● ◎ ● ◎
40
Compressor phase-deficient
operation
34
Model configuration wrong
E5
● ◎ ◎ ●
29
Indoor fan motor fault
E6
● ◎ ◎ ◎
21
Outdoor temperature sensor
E7
◎ ● ● ●
9
Exhaust temp. sensor
E8
◎ ● ● ◎
11
IPM drive and module fault
E9
◎ ● ◎ ●
30
Outdoor fan motor fault (DC motor)
EF
◎ ◎ ◎ ◎
16
Current sensor fault
EA
◎ ● ◎ ◎
13
Indoor EEPROM fault
EE
◎ ◎ ● ◎
27
Outdoor EEPROM fault
EE
◎ ◎ ◎ ●
19
Temp. switch fault ( on top of the
compressor)
EP
-
-
-
-
8
Voltage sensor fault
EU
○
● ● ◎
12
Outlet temperature sensor A fault
Ey
○
●
◎
●
47
Outlet temperature sensor B fault
48
Inlet temperature sensor A fault
En
○
●
◎
◎
51
Inlet temperature sensor B fault
52
Protection display code list:
○
--light
●
--off
◎
—flash
Protection Type
Indoor LED
Code
CASSETTE
Outdoor light
blink time (n)
LED1 LED2 LED3 LED4
Overvoltage /lower voltage protection
P1
○
●
●
○
2
Overcurrent protection
P2
○
●
○
●
3
Overvoltage protection
P3
○
●
○
○
24
Discharge
over
temperature
P4
○
○
●
●
4
Too cool protection in cooling mode
P5
-
-
-
-
32
Overheat protection in cooling mode
P6
○
○
○
●
5
Overheat protection in heating mode
P7
○
○
○
○
33
Outdoor over temperature
/ lower temperature protection
P8
-
-
-
-
31
Drive protection (software control )
P9
-
-
-
-
6
Module protection (hardware control)
P0
-
-
-
-
1
Model different
PA
●
●
○
○
-
Water full protect
D3
●
○
○
◎
-
11
