Unlocking the secrets of your Haier built-in oven: Dive into this guide and conquer error codes and troubles with ease. Discover solutions that not only explain what’s wrong but also empower you to fix it, save time, and keep your culinary creativity flowing.
HAIER Oven Error Codes
Remember to always unplug the oven and exercise caution when attempting any repairs.
E1: The cooking selector is not connected
Causes:
- Faulty wire harness connector
- Faulty selector.
- Faulty main PCB
Solutions:
- Check the wiring harness.
- Check the cooking selector.
- Replace the main PCB if necessary.
E2: Cooking program selector not connected on the display board (not used at the moment)
Causes:
- Faulty wire harness connector
Solutions:
- Check the wiring harness.
- Check that the selector is connected to the display board.
E3: Function selector not connected on the display board (not used at the moment)
Causes:
Faulty wire harness connector
Solutions:
- Check the wiring harness.
- Check that the selector is connected to the display board.
E4: Main board NTC open circuit
Causes:
- Damaged harness.
- Faulty main board NTC
- Faulty main PCB
Solutions:
- Check the wiring and connections to the sensor.
- Check the NTC sensor resistance.
| Temperature | Ohmic value |
|---|---|
| 20°C / 68°F | 1077 Ω |
| 40°C / 104°F | 1150 Ω |
- Replace the sensor.
- If the problem still exists, replace the main PCB.
E5: Main board NTC short circuit
Causes:
- Damaged harness.
- Faulty main board NTC
- Faulty main PCB
Solutions:
- Check the wiring and connections to the sensor.
- Check the NTC sensor resistance.
| Temperature | Ohmic value |
|---|---|
| 20°C / 68°F | 1077 Ω |
| 40°C / 104°F | 1150 Ω |
- Replace the sensor
- If the problem still exists, replace the main PCB.
E6: Main board too hot (typically 85°C, value set in EEPROM)
Causes:
- The oven is placed in an unventilated area.
- Faulty cooling fan.
Solutions:
- Put the oven in a well-ventilated area.
- Check the cooling fan and the installation.
E7: Secondary oven temperature sensor, open circuit
Causes:
- Damaged harness.
- Faulty second sensor.
- Faulty main PCB
Solutions:
- Check the wiring and connections to the sensor.
- Check the second sensor resistance:
| Temperature | Ohmic value |
|---|---|
| 20°C / 68°F | 1077 Ω |
| 40°C / 104°F | 1150 Ω |
- Replace the second oven sensor.
- If the problem still exists, replace the main PCB.
E8: Secondary oven temperature probe short circuit
Causes:
- Damaged harness.
- Faulty second sensor.
- Faulty main PCB
Solutions:
- Check the wiring and connections to the sensor.
- Check the second oven sensor resistance:
| Temperature | Ohmic value |
|---|---|
| 20°C / 68°F | 1077 Ω |
| 40°C / 104°F | 1150 Ω |
- Replace the second oven sensor.
- If the problem still exists, replace the main PCB.
E9: Communication problem with the WIFI module Only worked with WiFi turned on (not off)
Causes:
- Damaged harness.
- Faulty WiFi module
- Faulty main PCB
Solutions:
- Check the wire harness and connector.
- Replace the WIFI module.
- Replace the main board power card.
E10: Main oven temperature probe/sensor open circuit
Causes:
- Damaged harness.
- Faulty main sensor
- Faulty main PCB
Solutions:
- Check the wiring and connections to the sensor.
- Change the oven’s main sensor.
- If the problem still exists, replace the main PCB.
E11: Main oven temperature probe/sensor short circuit
Causes:
- Damaged harness.
- Faulty main sensor
- Faulty main PCB
Solutions:
- Check the wiring and connections to the sensor.
- Change the oven’s main sensor.
- If the problem still exists, replace the main PCB.
E12: Communication error between the main PCB and the display PCB
Causes:
- Damaged harness.
- Faulty display board.
- Faulty main PCB
Solutions:
- Check the flat cable between the main board power card and the display PCB.
- Replace the display board.
- If the problem still exists, replace the main PCB.
E13: Heating element broken
The error appears if a pyrolysis program is running and the oven temperature is less than 100°C after 10 minutes of the program starting. The timeout is reset if the door is opened. This error is not shown in demo mode, and it is recovered when the cooking program is changed or if the temperature is reached.
Causes:
- Damaged harness.
- Damaged Safety Themostat (TCO)
- Faulty heating element.
- Faulty heater relay.
- Faulty main PCB
Solutions:
- Check the safety thermostat (TCO).
- Check the heating element.
- Replace the heating element.
- Check the heater relay.
- If the problem still exists, replace the main PCB.
E14: Separator signal present
This error can appear only during the line test procedure.
Causes:
- Damaged harness.
- Faulty separator switch
Solutions:
- Check the wire harness.
- Check the separator switch.
- If the problem still exists, replace the main PCB.
E15: The door signal is not right for the situation
This error can appear only during the test procedure or on the pyrolytic oven when the door is locking, unlocking or already locked and the door signal is open
Causes:
- Damaged harness.
- Faulty door lock.
Solutions:
- Check the wire harness.
- Check the door lock.
- If the problem still exists, replace the main PCB.
E16: External display board NTC open circuit
Causes:
- Faulty NTC probe
- Faulty display board.
Solutions:
- Check the NTC probe.
- Replace the display board.
E17: External display board NTC open circuit
Causes:
- Faulty NTC probe
- Faulty display board.
Solutions:
- Check the NTC probe.
- Replace the display board.
E18: The external display board is too hot
Causes:
- The oven is placed in an unventilated area.
- Faulty display board.
Solutions:
- Try to cool down the display board by unplugging the oven for 45 minutes.
- Replace the display board if necessary.
E19: Main board EEPROM is not loaded or is not working (error not recoverable)
It could happen only at the first power-on of the board.
Causes:
- Faulty main PCB
Solutions:
- Unplug and plug in the power cord.
- Check the main PCB.
- Replace the main board and power card if necessary.
E21: Meat probe open circuit
This error can happen only during the line test procedure.
Causes:
- Damaged harness.
- Faulty meat probe
Solutions:
- Check the meat probe connector.
- Replace the meat probe.
E22: Meat probe short circuit
This error is not managed in the off and light functions or at the end of a cooking with a meat probe.
Causes:
- Damaged harness.
- Faulty meat probe
Solutions:
- Check the meat probe connector.
- Replace the meat probe.
E24: The door is not locked
If the board has to run a program different from pyrolysis, the error is suppressed.
Causes:
- Damaged harness.
- Faulty meat probe
Solutions:
- Check the door lock connector.
- Replace the door lock.
E25: The door won’t unlock
The board tries to unlock the door every time a new program is set, respecting the timing of the door lock system.
Causes:
- Damaged harness.
- Faulty meat probe
Solutions:
- Check the door lock connector.
- Replace the door lock.
E26: The slide grid signal is not present
This error can happen only during the line test procedure.
Causes:
- Damaged harness.
- Faulty slide grids
- Faulty door lock.
Solutions:
- Check the slide grid connector.
- Check the slide grids.
- Replace the door lock if necessary.
E27: Slide grid signals are present during door locking
This error can happen only during the line test procedure.
Causes:
- Damaged harness.
- Faulty slide grids
- Faulty door lock.
Solutions:
- Check the slide grid connector.
- Check the slide grids.
- Replace the door lock if necessary.
E28: Display board EEPROM is not working
Solutions:
- Replace the display board.
E29: Wrong configuration file for the external display
Solutions:
- Replace the main board power card.
E30: Separator signal is not present
This error can happen only during the line test.
Causes:
- Damaged harness.
- Faulty separator switch
Solutions:
- Check the separator switch connector.
- Check the separator switch.
E31: Bad touch key sensitivity
This error can happen only during the line test procedure.
Causes:
- Damaged springs.
- Faulty front panel
- Faulty TAD USER INTERFACE
Solutions:
- Check the correct position of the springs on the display board.
- Check the front panel.
- Replace the TAD UI (display board) if necessary.
E41: EEPROM memory is empty
Solutions:
- Replace the main board power card.
Haier Oven Demo Mode
The demo mode is only for the exposure of the oven.
How to place the oven in demo mode:
Step 1
- To activate the demo mode:
- The display must show 00:11 (set the time to 00:11).
Step 2
- With the oven off, press and hold the “MyChef” button for at least 5 seconds; you will hear a sound confirming the activation of the DEMO mode.
Step 3
- The display will show “demo mode”.
How to exit the demo mode:
- To deactivate the DEMO mode, follow the instructions in steps 1 and 2; after holding down the “MyChef” button for at least 5 seconds, you will hear a sound confirming the deactivation of the function, and the message DEMO will disappear.
I am a master Appliance Repair technician with over 35 years of experience in the field. I am passionate about helping people troubleshoot their appliances and fix common problems. My website, appliancemode.com, provides a wealth of information on troubleshooting common appliance issues and deciphering error codes. This website aims to empower people to tackle appliance repairs themselves and save money on service calls.
