E6
Haier User Interface / Display Board Failure

Oven displays E6 and may not allow operation of certain functions or any functions.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Failed display PCB, Broken communication link between UI and main board, Liquid damage to touch panel, Faulty UI power supply from main board

How to Fix / Troubleshooting

Safety first: Turn off power at the breaker before removing the control panel.

Step-by-step checks:

  • Inspect display: Look for cracked glass, dark spots, or unlit segments on the display.
  • Check cables: Reseat the ribbon cable between the UI board and main control. Inspect for bent pins or corrosion.
  • Look for moisture: If the error followed heavy cleaning, inspect for moisture behind the glass and allow to dry thoroughly.
  • Test buttons: After reassembly, restore power and test all keys. If E6 persists and keys do not respond, the UI board is likely faulty.

When to replace parts: Replace the display / user interface board. If the UI is integrated with the main board, replace the entire control panel assembly.

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Repair Difficulty

Medium 3/5

Required Part

Display / User Interface Board
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