E6
Proline Keypad or Control Panel Communication Error

Microwave display shows E6 and beeps; keypad and functions may be unresponsive or erratic.

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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

Defective membrane keypad, Loose ribbon cable between keypad and control board, Failed control PCB, Moisture ingress behind control panel

How to Fix / Troubleshooting

Safety first: Unplug the microwave before touching the control panel internals.

User-level steps:

  • Power reset: Unplug for 5–10 minutes, then reconnect and test.
  • Dry out moisture: If steam has been condensing on the control panel, leave the door open and allow the unit to dry for several hours. Do not spray cleaners directly onto the keypad.
  • Check for stuck keys: Gently press each button to ensure none are physically stuck. Wipe the surface with a slightly damp cloth, then dry thoroughly.

If E6 remains:

  • The membrane keypad or control PCB is likely faulty. These parts are low-voltage but still require cabinet disassembly.
  • Have a technician inspect the ribbon cable connection and replace the keypad or control board as needed.
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Repair Difficulty

Medium 3/5

Required Part

Membrane Keypad
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