E06
Telefunken Control Board Communication / Relay Fault

Microwave display shows E06 and the unit will not start; keypad and clock may still function.

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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 main control PCB, Stuck power relay on control board, Loose wiring harness between control board and power section, Surge-damaged microcontroller

How to Fix / Troubleshooting

Safety first: Unplug the microwave before opening the cabinet.

  • Power reset: Leave the microwave unplugged for 10–15 minutes to allow the control board to fully discharge. Plug back in and check if E06 clears.
  • Inspect wiring harness: Remove the outer cover and inspect the harnesses going to the control PCB. Reseat all connectors firmly, especially those leading to the power relays and door switches.
  • Check for visible board damage: Look for burnt spots, cracked solder joints, or swollen components on the control board. If present, the board should be replaced.
  • Replace control PCB: If E06 persists and no external cause is found, replace the main control board with a Telefunken-compatible module, transferring any wiring one connector at a time to avoid mistakes.
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Repair Difficulty

Hard 4/5

Required Part

Main Control Board
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