Hisense AC Error Codes and Troubleshooting

AC BrandsHisense

Press the high power for 4 times in a row and the trouble codes listed below will be displayed.

Hisense Air Conditioner Error Codes
Hisense Air Conditioner Error Codes
Error CodeProblem
0No trouble
1Outdoor coil temperature sensor in trouble
2Compressor temperature sensor in trouble
3Voltage transformer in trouble
4Current transformer in trouble
5IPM module protection
6Over and under-voltage control
7Communication trouble
8Current overload control
9Maximum current control
10Communication trouble (between outdoor unit and driver unit)
11Outdoor EEPROM in trouble
13Compressor exhaust temperature too high control
14Outdoor ambient temperature sensor in trouble
15Compressor housing temperature control
16Anti-freeze or overload control
18DC compressor fails to start
19DC compressor out of step
33Room temperature sensor in trouble
34Indoor coil temperature sensor in trouble
35Between wire remote controller and indoor unit communication trouble
36Communication between the indoor and outdoor in trouble
37Water overbrimmed the pump

The root cause is may be one of the following:

  1. It is normally for protection, When the indoor pipe temperature between 53C<T<63C, the outdoor fan motor will stop running. When the indoor coil temperature is higher than 63C, the error code will display. After the indoor pipe temperature is lower than 49C, the air conditioner will restart normally.
  2. The indoor coil temperature sensor is loose;
  3. The indoor coil temperature sensor is failure;
  4. The indoor control board is failure.

Error Code: E4

Content: When the indoor fan speed is lower than 200 rpm, the error code will display

The root cause is may be one of the following:

  1. There are something block the indoor fan motor;
  2. The fan motor cord connect loose;
  3. The fan motor is failure;
  4. The indoor control board is failure

Error Code: EA

Content: the error code will display when the communication between display board and control board have in trouble

The root cause is may be one of the following:

  1. The connection between the display board and control board is loose;
  2. The indoor control board is failure.
  3. The wiring of the display board is failure.

Display of Error Codes:

Hisense Air Conditioner Display introduction
Hisense Air Conditioner Display introduction

When the system stops running,press the “CHECK” and “↑↓” buttons, “SERVICE” and “00” will display,”00” is index ,press “∧”and “∨” button to set the value, the index value is displayed at the timer area .Each index value shows corresponding content,as follows:

Trouble code: 0

Troubles: No trouble

Trouble code: 1

Troubles: Outdoor coil temperature sensor in trouble

Possible Cause:

  1. Outdoor coil temperature sensor is failure
  2. Outdoor control board in trouble

Trouble code: 2

Troubles: Compressor discharge temperature sensor in trouble

Possible Cause:

  1. Compressor discharge sensor is failure
  2. Outdoor control board in trouble

Trouble code: 5

Troubles: IPM protection

Possible Cause:

  1. Normal protection
  2. Outdoor IPM control board is failure in the outdoor control board.
  3. The compressor is failure.

Trouble code: 6

Troubles: Over and under-voltage control

Possible Cause:

  1. Voltage of power supply is abnormal.
  2. Outdoor control board in trouble.

Trouble code: 8

Troubles: Current overload control

Possible Cause:

  1. Normal protection
  2. The outdoor control board in trouble.

Trouble code: 9

Troubles: Maximum current control

Possible Cause:

  1. Normal protection
  2. The compressor is failure

Trouble code: 11

Troubles: Outdoor EEPROM in trouble

Possible Cause: Outdoor control board in trouble.

Trouble code: 13

Troubles: Compressor exhaust temperature too high control

Possible Cause:

  1. Heat exchanger and indoor filter were dirty.
  2. The refrigeration system was stopt.
  3. Compressor discharge temperature sensor is failure.

Trouble code: 14

Troubles: Outdoor ambient temperature sensor in trouble

Possible Cause:

  1. Outdoor ambient temperature sensor is failure
  2. Outdoor control board in trouble

Trouble code: 15

Troubles: Compressor housing temperature protection

Possible Cause:

  1. Compressor overheat protection sensor is failure
  2. Outdoor control board in trouble

Trouble code: 16

Troubles: Anti-freeze or overload control

Possible Cause:

  1. Indoor coil temperature sensor is failure.
  2. Indoor control board in trouble.

Trouble code: 18

Troubles: Compressor fails to start

Possible Cause:

  1. Compressor is failture.
  2. Outdoor IPM control board is failure in the outdoor control board.

Trouble code: 33

Troubles: Room temperature sensor in trouble

Possible Cause:

  1. Room temperature sensor is failure
  2. Indoor control board in trouble

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