E8
Daewoo Keypad / Touch Panel Communication Fault

Air fryer shows E8 and does not respond to temperature or time adjustments.

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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

Damaged touch panel membrane, Loose ribbon cable between UI board and main PCB, Corroded keypad connector, Failed keypad scan circuit on PCB

How to Fix / Troubleshooting

Safety first: Unplug the appliance before removing the control panel.

Steps:

  • 1. Inspect the control panel: Check for cracks in the glass or plastic fascia, liquid spills, or signs of impact around the buttons.
  • 2. Access the UI board: Remove the screws securing the front control panel. Gently pull it forward to expose the ribbon cable and small PCB.
  • 3. Reseat ribbon cable: Carefully unplug the flat ribbon cable between the UI board and the main board, then plug it back in fully. Ensure it is straight and locked in place.
  • 4. Clean connectors: If there is visible contamination, clean the contacts with isopropyl alcohol and allow to dry completely.
  • 5. Test operation: Reassemble enough to power the unit safely and test. If E8 remains, the touch panel or main PCB may need replacement.

Note: Do not operate the unit with the control panel loose or hanging; exposed live parts may be present.

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Repair Difficulty

Medium 3/5

Required Part

Touch Control Panel Assembly
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