Hisense AC Error Codes and Troubleshooting



Hisense Air Conditioner Error Codes
Hisense Air Conditioner Error Codes

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

Error CodesProblem
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
38Indoor EEPROM in trouble
39Indoor fan motor operation abnormal
40Grid protection alarm (cabinet type)
41Detecting failures by zero-crossing
F0Wire remote controller EEPROM failure. Change wire remote controller.
F1Wire remote controller temperature sensor failure. Change wire remote controller.
F2Wire remote controller clock IC failure. Change wire remote controller.
F3Wire remote controller humidity sensor failure. Change wire remote controller.
FECommunication between main control board & Wiring remote controller Fault (display on wiring remote controller).
ERCommunication between main control board &display board Fault.

Error Code: E2

Content: When the evaporator pipe temperature is higher than 63C, the error code will display

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

Trouble code: 34

Troubles: Indoor coil temperature sensor in trouble



Possible Cause:

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

Trouble code: 35

Troubles: Between wire remote controller and indoor unit communication trouble

Possible Cause:

  1. Wire remote controller in trouble.
  2. Indoor control board in trouble.

Trouble code: 36

Troubles: Communication between the indoor and outdoor in trouble

Possible Cause:

  1. Connection cable isn’t well connect
  2. Indoor control board in trouble
  3. Outdoor control board in trouble

Trouble code: 37

Troubles: Water overbrimmed the pump.

Possible Cause: Check the pump

Trouble code: 38

Troubles: Indoor EEPROM in trouble

Possible Cause: Indoor control board in trouble.

Indication on the Indoor Unit

Hisense Air Conditioner RemoteControl Display
Hisense Air Conditioner Remote Control Display

If the compressor fails when it is interrupted, the indoor unit’s LED flashes indicating the specific trouble code. It flashes as many times as the number of the trouble code is.

Times: 1

Troubles: Outdoor coil temperature sensor in trouble

Possible Cause:

  • Outdoor coil temperature sensor is failure
  • Outdoor control board in trouble

Times: 2

Troubles: Compressor discharge temperature sensor in trouble

Possible Cause:

  • Compressor discharge sensor is failure
  • Outdoor control board in trouble

Times: 4

Troubles: Current transformer in trouble

Times: 5

Troubles: IPM protection

Possible Cause:

  • Normal protection
  • Outdoor IPM control board is failure in the outdoor control board.
  • The compressor is failure.

Times: 6

Troubles: Over and under-voltage control

Possible Cause:

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

Times: 8




Troubles: Current overload control

Possible Cause:

  • Normal protection
  • The outdoor control board in trouble.

Times: 9

Troubles: Maximum current control

Possible Cause:

  • Normal protection
  • The compressor is failure

Times: 11

Troubles: Outdoor EEPROM in trouble

Possible Cause: Outdoor control board in trouble.

Times: 13

Troubles: Compressor exhaust temperature too high control

Possible Cause:

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

Times: 14

Troubles: Outdoor ambient temperature sensor in trouble

Possible Cause:

  • Outdoor ambient temperature sensor is failure
  • Outdoor control board in trouble

Times: 15

Troubles: Compressor housing temperature protection

Possible Cause:

  • Compressor overheat protection sensor is failure
  • Outdoor control board in trouble

Times: 16

Troubles: Anti-freeze or overload control

Possible Cause:



  • Indoor coil temperature sensor is failure.
  • Indoor control board in trouble.

Times: 18

Troubles: Compressor fails to start

Possible Cause:

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

Times: 33

Troubles: Room temperature sensor in trouble

Possible Cause:

  • Room temperature sensor is failure
  • Indoor control board in trouble

Times: 34

Troubles: Indoor coil temperature sensor in trouble

Possible Cause:

  • Indoor coil temperature sensor is failure
  • Indoor control board in trouble

Times: 35

Troubles: Between wire remote controller and indoor unit communication trouble

Possible Cause:

  • Wire remote controller in trouble.
  • Indoor control board in trouble.

Times: 36

Troubles: Communication between the indoor and outdoor in trouble

Possible Cause:

  • Connection cable isn’t well connect
  • Indoor control board in trouble
  • Outdoor control board in trouble

Times: 37

Troubles: Water overbrimmed the pump.

Possible Cause: check the pump

Times: 38

Troubles: Indoor EEPROM in trouble

Possible Cause: Indoor control board in trouble.

Hisense Portable AC Error Codes and Troubleshooting

Before calling for service, please try the suggestions below.

Air conditioner will not operate

  • The power supply cord is unplugged; Plug into a grounded 3 prong outlet.
  • Time-delay fuse or circuit breaker of the wrong capacity is being used; Replace with a time—delay fuse or circuit breaker of the correct capacity.
  • The power supply cord has tripped; Press and release RESET.
  • A household fuse has blown, or a circuit breaker has tripped: Replace the fuse, or reset the circuit breaker.
  • The On/Off button has not been pressed; Press ON/OFF.
  • The local power has failed: Wait for power to be restored.
Hisense Portable Air Conditioner Troubleshooting
Hisense Portable Air Conditioner Troubleshooting

Air conditioner blows fuses or trips circuit breakers

  • Too many appliances are being used on the same circuit; Unplug or relocate appliances that share the same circuit.
  • You are trying to restart the air conditioner too soon after turning off air conditioner; Wait at least 3 minutes after turning off air conditioner before trying to restart the air conditioner.

Air conditioner power supply cord trips (Reset button pops out)

  • Disturbances in your electrical current can trip (Reset button will pop out) the power supply cord; Press and release RESET (listen for click; Reset button will latch and remain in) to resume operation.
  • Electrical overloading, overheating, cord pinching or aging can trip (Reset button will pop out) the power supply cord; After correcting the problem, press and release RESET (listen for click; Reset button will latch and remain in) to to resume operation. If the power cord fails to reset, contact a service technician.

NOTE: A damaged power supply cord must be replaced with a new power supply cord obtained from the product manufacturer and must not be repaired.

Hisense Portable Air Conditioner Parts
Hisense Portable Air Conditioner Parts

Air conditioner seems to run too much

  • Is there a door or window open? ; Keep doors and windows closed.
  • The current air conditioner replaced an older model; The use of more efficient components may cause the air conditioner to run longer than an older model, but the total energy consumption will be less. Newer air conditioners do not emit the ” blast” of cold air you may be accustomed to from older units, but this is not an indication of lesser cooling capacity or efficiency. Refer to the efficiency rating (EER) and capacity rating (in Btu/h) marked on the air conditioner.
  • The air conditioner is in a heavily occupied room, or heatproducing appliances are in use in the room; Use exhaust vent fans while cooking or bathing and try not to use heat-producing appliances during the hottest part of the day. Portable air conditioners are designed as supplemental cooling to local areas within a room. A higher capacity air conditioner may be required, depending on the size of the room being cooled.
  • Air conditioner runs for a short time only, but room is not cool; Set temperature is close to room temperature; Lower set temperature. See ” portable Air Conditioner Use



Display error code

  • If the unit displays error code E5, the water container is full. Drain the water, see “Draining the air conditioner”. After draining, the unit can be operated again.
Hisense Portable Air Conditioner Remote Control Display
Hisense Portable Air Conditioner Remote Control Display

Air conditioner runs. but does not cool

  • The filter is dirty or obstructed by debris; Clean the filter.
  • Air outlet is blocked; Clear air outlet.
  • Set temperature is too high; Lower set temperature.
Hisense Portable Air Conditioner Control Panel Display
Hisense Portable Air Conditioner Control Panel Display

Air conditioner cycles on and off too much

  • The air conditioner is not properly sized for your room; Check the cooling capabilities of your portable air conditioner. Portable air conditioners are designed as supplemental cooling to local areas within a room.
  • The filter is dirty or obstructed by debris; Clean the filter.
  • There is excessive heat or moisture, open container cooking, showers,etc. in the room. Use afan to exhaust heat or moisture from the room; Try not to use heat-producing appliances during the hottest part of the day.
  • The louvers are blocked; Install the air conditioner in a location where the louvers are free from curtains, blinds, furniture, etc.

Hisense Air Conditioner Troubleshooting

Hisense Air Conditioner Troubleshooting

The following cases may not always be a malfunction, please check it before asking for service.

Trouble: Does not run

Analysis:

  • If the protector trip or fuse is blown.
  • If the plug is not properly plugged.
  • If batteries in the remote controller exhausted.
  • Please wait for 3 minutes and start again, protector device may be preventing unit to work

Trouble: No cooling or heating air

Analysis:




  • Is the air filter dirty?
  • Are the intakes and outlets of the air conditioner blocked?
  • Is the temperature set properly?

Trouble: Ineffective control

Analysis: If strong interference(from excessive static electricity discharge, power supply voltage abnormality presents, operation will be abnormal. At this time, disconnect from the power supply and connect back 2-3 seconds later.

Trouble: Does not operate immediately

Analysis: Changing mode during operation, 3 minutes will delay.

Trouble: Peculiar odor

Analysis: This odor may come from another source such as furniture, cigarette etc, which is sucked in the unit and blows out with the air.

Trouble: A sound of flowing water

Analysis:

  • Caused by the flow of refrigerant in the air conditioner, not a trouble.
  • Defrosting sound in heating mode

Trouble: Cracking sound is heard

Analysis: The sound may be generated by the expansion or contraction of the front panel due to change of temperature.

Trouble: Spray mist from the outlet

Analysis: Mist appears when the room air becomes very cold because of cool air discharged from indoor unit during COOLING or DRY operation mode.

Trouble: The compressor indicator(red) lights on constantly, and indoor fan stops.

Analysis: The unit is shifting from heating mode to defrost. The indicator will lights off within ten minutes and returns to heating mode.

Hisense AC Indoor and Outdoor Electrical wiring diagrams
Hisense AC Indoor and Outdoor Electrical wiring diagrams

Hisense Air Conditioner Manual PDF

Hisense Portable Air Conditioner Manual PDF

Hisense VRF Air Conditioner Error Codes




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