Dantex air conditioner's error codes

The code

Fault name

Error on display

Repair method

7SEG

LED - display

1

Microcontroller memory error

EE

HEAT indicator: pause 3 sec., Blinks 15 times

Replacing the indoor unit control board

2

Malfunction of the control board

EE

HEAT indicator: pause - 3 sec., Flashes 15 times

Replacing the indoor unit control board

3

Frost protection

E2

RUN indicator: pause - 3 sec., Blinks 2 times

Outside temperature too low

4

System overload

H4

HEAT indicator: pause - 3 sec., Blinks 4 times

Check evaporator and condenser for dirt or interference

5

There is no feedback from the indoor unit motor

H6

RUN indicator: pause - 3 sec., Flashes 11 times

Check motor power and feedback connectors

6

Indoor unit pipeline temperature sensor open / short-circuited

F2

COOL indicator: pause - 3 sec., Blinks 2 times

Check if the sensor is open.

Determine the coefficient of resistance using a tester

7

Room ambient temperature sensor open / short-circuited

F1

COOL indicator: pause - 3 sec., Blinks 1 time

Check if the sensor is open.

Determine the coefficient of resistance using a tester

8

Zero Crossing Malfunction

UF

COOL and HEAT indicator:

flashes 7 times simultaneously in two modes

Replacing the indoor unit control board

9

Compressor overload

H3

HEAT indicator:

pause - 3 sec., Blinks 3 times

Check the condition of the compressor wiring contact

10

Compressor start failure

Lc

HEAT indicator:

pause - 3 sec., Flashes 11 times

Check if compressor resistance and resistance to ground are correct. If the compressor is normal, it is faulty maybe an external unit control board

11

There is no feedback with the electric motor of the outdoor unit

UH

COOL and HEAT indicator:

blinks 8 times simultaneously in two modes

Such a malfunction is possible if an external unit DC motor is used.

12

Overcurrent protection

E5

RUN indicator: pause - 3 sec.,

Blinks 5 times

Check if AC is being used in the circuit

13

Malfunction of 4-way valve

U7

COOL indicator: pause

- 3 sec.,

Blinks 20 times

Replacing the 4-way valve

14

Phase current circuit detection error for compressor

U1

HEAT indicator:

pause - 3 sec., Flashes 13 times

Replacing the control board of the outdoor unit

The code

Fault name

Indicator display

Repair method

7SEG

LED display

15

Compressor desynchronization

H7

HEAT indicator: pause 3 sec., Blinks 7 times

Check if compressor resistance and resistance to ground are correct. If the compressor is normal, the control board of the outdoor unit may be defective.

16

Fault direction of current

U5

COOL indicator: pause - 3 sec., Flashes 13 times

Replacing the control board of the outdoor unit

17

Outdoor temperature sensor open / short-circuited

F3

COOL indicator: pause - 3 sec., Blinks 3 times

Check if the sensor is open. Determine the resistance with a tester

18

Compressor high outlet temperature protection

E4

RUN indicator: pause - 3 sec., Blinks 4 times

Check if the sensor is open. Determine the resistance with a tester

19

Compressor discharge temperature sensor in external unit open / short-circuited

F5

COOL indicator: pause - 3 sec., Blinks 5 times

Check if the sensor is open. Determine the resistance with a tester

20

Outdoor condenser pipe temperature sensor open / short circuit

F4

COOL indicator: pause - 3 sec., Blinks

18 times

Check if the sensor is open. Determine the resistance with a tester

21

Thermal protection of the IPM module

P8

HEAT indicator:

pause - 3 sec., Blinks 19 times

Check how high the outside temperature is and make sure the radiator is installed correctly

22

DC overload

UU

COOL and HEAT indicator:

flashes 11 times simultaneously in two modes

Replacing the control board of the outdoor unit

23

Module temperature sensor open / short-circuited

P7

HEAT indicator:

pause - 3 sec., Blinks 18 times

Replacing the control board of the outdoor unit

24

Insufficient amount of refrigerant

F0

COOL indicator:

pause - 3 sec., Blinks 10 times

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