TCL DC inverter Air-conditioner
Protection and Fault Codes
Fault Code
Fault Type
|
Function Indicator (flash)
|
Digital LED displa
|
Indoor/outdoor
communication fault
|
RUN
& TIMER: Blink
|
E0
|
outdoor
communication fault
|
RUN
& TIMER: Blink
|
EC
|
Room
temperature sensor (IRT)
|
RUN-1/8
sec.
|
E1
|
Indoor
pipe (coil) temperature sensor (IPT)
|
RUN-2/8
sec.
|
E2
|
Outdoor
pipe (coil) temperature sensor (OPT)
|
RUN-3/8
sec.
|
E3
|
System
abnormal
|
RUN-4/8
sec.
|
E4
|
Model
configuration wrong
|
RUN-5/8
sec.
|
E5
|
Indoor
fan motor fault
|
RUN-6/8
sec.
|
E6
|
Outdoor
temperature sensor
|
RUN-7/8
sec.
|
E7
|
Exhaust
temperature sensor
|
RUN-8/8
sec.
|
E8
|
Intelligent
power module of drive and module fault
|
RUN-9/8
sec.
|
E9
|
Outdoor
fan motor fault (DC Motor)
|
RUN-10/8
sec.
|
EF
|
Current
sensor fault
|
RUN-11/8
sec.
|
EA
|
EEPROM
fault
|
RUN-12/8
sec.
|
EE
|
Temperature
switch fault (on top of the compressor)
|
RUN-13/8
sec.
|
EP
|
Voltage
sensor fault
|
RUN-14/8
sec.
|
EU
|
Intake
temperature sensor
|
RUN-15/8
sec.
|
EH
|
Protection Code
Protection Type
|
Function Indicator (flash)
|
Digital LED display
|
Overvoltage
/ undervoltage protection
|
RUN:
Blink; TIMER: 1 blink /8 sec
|
P1
|
Overcurrent
protection
|
RUN:
Blink; TIMER: 2 blink /8 sec
|
P2
|
Exhaust
overtemperature protection
|
RUN:
Blink; TIMER: 4 blink /8 sec
|
P4
|
Subcooling
protection under cooling mode
|
RUN:
Bright; TIMER: 5 blink /8 sec
|
P5
|
Overheating
protection under cooling mode
|
RUN:
Bright; TIMER: 6 blink /8 sec
|
P6
|
Overheating
protection under heating mode
|
RUN:
Bright; TIMER: 7 blink /8 sec
|
P7
|
Outdoor
overtemperature / undertemperature protection
|
RUN:
Bright; TIMER: 8 blink /8 sec
|
P8
|
Drive
protection (software control )
|
RUN:
Blink; TIMER: 9 blink /8 sec
|
P9
|
Module
protection (hardware control)
|
RUN:
Blink; TIMER: 10 blink /8 sec
|
P0
|
Display on outdoor power source board: The
indicator alerts the fault in a cycle as such that it is bright for 0.5
seconds, dark for 0.5 seconds, blinks “n” times and then dark for 3 seconds.
Blink times(n)
|
Fault Message
|
Blink times(n)
|
Fault Message
|
1
|
IPM
protection
|
18
|
Short-circuit
/ open-circuit fault of intake temperaturesensor
|
2
|
Overvoltage
/ undervoltage
|
19
|
Outdoor
EEPROM fault
|
3
|
Overcurrent
|
20
|
Outdoor
fan motor protection
|
4
|
Exhaust
overtemperature protection
|
21
|
Indoor
fan motor protection
|
5
|
Outdoor
coil overtemperature protection
|
23
|
System
in shortage of Freon
|
6
|
Drive
fault and protection (V1， VP1)
|
24
|
Model
configuration wrong
|
7
|
Communication fault with indoor unit
|
25
|
Indoor
sensor fault
|
8
|
Compressor overheat fault (compressor top switch)
|
26
|
Indoor
coil sensor fault
|
9
|
Short-circuit / open-circuit fault of outdoor
temperature sensor
|
27
|
Indoor
EEPROM fault
|
10
|
Short circuit / open-circuit fault of outdoor
heat exchanger temperature sensor
|
28
|
Indoor
fan motor fault
|
11
|
Short-circuit / open-circuit fault of exhaust
temperature sensor
|
30
|
drive
fault（ V4、 VP2）
|
12
|
Voltage sensor fault
|
31
|
Outdoor environmental overtemperature / undertemperature
protection
|
13
|
Current sensor fault
|
32
|
Indoor coil deforst prevention
|
14
|
IPM fault
|
33
|
Indoor coil overheating protection
|
15
|
communication fault between power source board
and intelligent power module
|
||
16
|
No feedback from DC fan motor(outdoor unit)
|
||
17
|
Defrost state
|
