TCL Error Code

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


Failure type = In and out communication failure
LED CODE = RUN,TIMER –both winking
DIGITAL LED CODE = E0

Failure type = Outdoor communication failure
LED CODE = RUN,TIMER –both winking
DIGITAL LED CODE = EC

Failure type = Outdoor sensor
LED CODE = RUN-1 time/8s
DIGITAL LED CODE = E1

Failure type = Indoor coil temperature sensor
LED CODE = RUN-2 times/8s
DIGITAL LED CODE = E2

Failure type = Outdoor coil temperature sensor
LED CODE = RUN-3 times/8s
DIGITAL LED CODE = E3

Failure type = System abnormity
LED CODE = RUN-4 times /8s
DIGITAL LED CODE = E4

Failure type = Type mismatch
LED CODE = RUN-5 times /8s
DIGITAL LED CODE = E5

Failure type = Indoor fan motor
LED CODE = RUN-6 times /8s
DIGITAL LED CODE = E6

Failure type = Outdoor temperature sensor
LED CODE = RUN-7 times /8s
DIGITAL LED CODE = E7

Failure type = Discharge temperature sensor
LED CODE = RUN-8 times /8s
DIGITAL LED CODE = E8

Failure type = Invert module abnormity
LED CODE = RUN-9 times /8s
DIGITAL LED CODE = E9

Failure type = Outdoor fan motor (DC)
LED CODE = RUN-10 times /8s
DIGITAL LED CODE = EF

Failure type = Current sensor
LED CODE = RUN--11 times /8s
DIGITAL LED CODE = EA

Failure type = EEPROM failure
LED CODE = RUN-12 times /8s
DIGITAL LED CODE = EE

Failure type = Top of compressor temperature switch
LED CODE = RUN-13 times /8s
DIGITAL LED CODE = EP

Failure type = Voltage sensor
LED CODE = RUN-14 times /8s
DIGITAL LED CODE = EU

Protection display code list:

Protection type = higher or lower voltage
LED CODE = RUN-winking,TIMER-1 time/8s
DIGITAL LED CODE = P1

Protection type = Over current
LED CODE = RUN- winking,TIMER-2 times /8s
DIGITAL LED CODE = P2

Protection type = Discharge temperature
LED CODE = RUN- winking,TIMER-4 times /8s
DIGITAL LED CODE = P4

Protection type = Over cooling in cooling mode
LED CODE = RUN-light,TIMER-5 times /8s
DIGITAL LED CODE = P5

Protection type = Over heating in cooling mode
LED CODE = RUN- light,TIMER-6 times /8s
DIGITAL LED CODE = P6

Protection type = Over heating in heating mode
LED CODE = RUN- light,TIMER-7 times /8s
DIGITAL LED CODE = P7

Protection type = Outdoor temperature too high or low
LED CODE = RUN- light,TIMER-8 times /8s
DIGITAL LED CODE = P8

Protection type = Drive protection(Overload)
LED CODE = RUN- winking,TIMER-9 times/8s
DIGITAL LED CODE = P9

Protection type = Module self protection
LED CODE = RUN- winking,TIMER-10 times/8s
DIGITAL LED CODE = P0


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. The failure list is the follow:

Blink times(n) = 1
Failure = IPM protection

Blink times(n) = 2
Failure = higher or lower voltage

Blink times(n) = 3
Failure = Over current

Blink times(n) = 4
Failure = Discharge temperature too high

Blink times(n) = 5
Failure = Outdoor coil temperature too high

Blink times(n) = 6
Failure = Drive abnormity

Blink times(n) = 7
Failure = Communication abnormity with indoor unit

Blink times(n) = 8
Failure = Compressor over heat (switch on top of compressor)

Blink times(n) = 9
Failure = Outdoor air temperature sensor failure

Blink times(n) = 10
Failure = Outdoor coil temperature sensor failure

Blink times(n) = 11
Failure = Outdoor discharge pipe temperature sensor failure

Blink times(n) = 12
Failure = Voltage sensor failure

Blink times(n) = 13
Failure = Current sensor failure

Blink times(n) = 14
Failure = IPM abnormity

Blink times(n) = 15
Failure = Outdoor communication abnormity

Blink times(n) = 16
Failure = DC fan motor no feedback

Blink times(n) = 17
Failure = defrosting

Blink times(n) = 18
Fault Message = Short-circuit / open-circuit fault of intake temperature sensor

Blink times(n) = 19
Fault Message = Outdoor EEPROM fault

Blink times(n) = 20
Fault Message = Outdoor fan motor protection

Blink times(n) = 21
Fault Message = Indoor fan motor protection

Blink times(n) = 23
Fault Message = System in shortage of Freon

Blink times(n) = 24
Fault Message = Model configuration wrong

Blink times(n) = 25
Fault Message = Indoor sensor fault

Blink times(n) = 26
Fault Message = Indoor coil sensor fault

Blink times(n) = 27
Fault Message = Indoor EEPROM fault

Blink times(n) = 28
Fault Message = Indoor fan motor fault

Blink times(n) = 30
Fault Message = drive fault（V4、VP2）

Blink times(n) = 31
Fault Message = Outdoor environmental Over temperature / Under temperature protection

Blink times(n) = 32
Fault Message = Indoor coil defrost prevention

Blink times(n) = 33

Fault Message = Indoor coil overheating protection

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