TCL Air Conditioner Error Codes

AC BrandsTCL

Protection and Fault Codes;

TCL Air Conditioner Error Codes
TCL Air Conditioner Error Codes
Error CodeMeaning
E0Indoor/outdoor communication fault
ECOutdoor communication fault
E1Room temperature sensor (IRT)
E2Indoor pipe (coil) temperature sensor (IPT)
E3Outdoor pipe (coil) temperature sensor (OPT)
E4System abnormal
E5Model configuration wrong
E6Indoor fan motor fault
E7Outdoor temperature sensor
E8Exhaust temperature sensor
E9Intelligent power module of drive and module fault
EFOutdoor fan motor fault (DC Motor)
EACurrent sensor fault
EEEEPROM fault
EPTemperature switch fault (on top of the compressor)
EUVoltage sensor fault
EHIntake temperature sensor
P1Overvoltage / undervoltage protection
P2Overcurrent protection
P4Exhaust overtemperature protection
P5Subcooling protection under cooling mode
P6Overheating protection under cooling mode
P7Overheating protection under heating mode
P8Outdoor overtemperature / undertemperature protection
P9Drive protection (software control )
P0Module protection (hardware control)

Protection and Failure Display;

  • When protection display is available, controller will show error code, digital LED shows error code and setting temperature by turns.
  • If there is more than one failure, it will show at first that in front of the error list.
  • Protection display function can be selected in hardware, and the default don’t display;
  • To insure of in and out communist is credibility, the failures relate to outdoor unit will remain failure state for 2 minutes max after recovered.
  • In all failures, only sensor failures don’t have to repower to cancel.

Error list;

TCL AC Error List

Protection display code list: 

TCL AC Display Code List

Outdoor failure display;

There is a LED on outdoor power board, when compressor is running; it is normally light; when no feedback of signal to power board from compressor, it will wink by lighting 1s and going out 1s. If failures happened, it will light 0.5s, go out 0.5s, winking several times and go out 3s for a cycle to indicate failures.

TCL AC Remote Controller
TCL AC Remote Controller

The failure list is the follow:

Wink time/Failure

1: IPM protection

2: higher or lower voltage

3: Over current

4: Discharge temperature too high

5: Outdoor coil temperature too high

6: Drive abnormity

7: Communication abnormity with indoor unit

8: Compressor over heat(switch on top of compressor)

9: Outdoor air temperature sensor failure

10: Outdoor coil temperature sensor failure

11: Outdoor discharge pipe temperature sensor failure

12: Voltage sensor failure

13: Current sensor failure

14: IPM abnormity

15: Outdoor communication abnormity

16: DC fan motor no feedback

17: defrosting

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