E12
Privileg Encoder / Selector Knob Fault (Rotary Control Models)

Microwave displays E12 and may not accept time or power settings correctly.

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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,Loose knob shaft or cracked plastic coupler,Contaminated encoder contacts,Faulty control PCB encoder input

How to Fix / Troubleshooting

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

Step-by-step checks:

  • 1. Check the knob mechanically: Turn the selector knob. If it slips, wobbles, or does not click as usual, the shaft or coupler may be damaged.
  • 2. Remove the knob: Pull the knob straight off the shaft. Inspect for cracks or wear. Replace if damaged.
  • 3. Access the encoder: Remove the control panel and locate the rotary encoder on the PCB.
  • 4. Clean the encoder (if serviceable): If the encoder is open-frame, use contact cleaner sparingly and rotate the shaft to distribute. For sealed encoders, replacement is recommended.
  • 5. Replace the encoder: Desolder the old encoder and install a new one of the same type, or replace the entire control PCB if individual parts are not available.
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Repair Difficulty

Medium 3/5

Required Part

Rotary Encoder
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