E14
AEG Encoder / Selector Knob Fault

Microwave displays E14 and programs cannot be set or changed.

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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

Worn rotary encoder, Broken selector knob shaft, Loose encoder connection, Faulty user interface PCB

How to Fix / Troubleshooting

Safety first: Disconnect mains power before removing the control panel.

  • Step 1 – Check knob operation: Rotate the selector knob and feel for smooth, distinct clicks. If it spins freely without detents or skips selections, the encoder may be worn.
  • Step 2 – Inspect knob and shaft: Remove the knob and check for cracks or rounding of the shaft. Replace the knob if damaged.
  • Step 3 – Access encoder: Remove the control panel and inspect the rotary encoder soldered to the PCB. Check for cracked solder joints or physical damage.
  • Step 4 – Repair or replace: Resolder cracked joints if competent, or replace the encoder or entire user interface PCB with the correct AEG part.
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Repair Difficulty

Medium 3/5

Required Part

Rotary Encoder / Selector Knob
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