E07
Teka Low Voltage Power Supply Fault

Microwave display shows E07 and interior light and fan do not come on when starting a program.

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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 low-voltage power supply on main PCB,Blown internal fuse on control board,Shorted low-voltage regulator,Power surge damage

How to Fix / Troubleshooting

Safety: Disconnect from mains before opening the cabinet. Internal components can be hazardous.

User checks:

  • Verify the wall outlet is working by testing another appliance.
  • Check that the microwave's plug and cord are not damaged.
  • Reset any external circuit breakers or fuses.

Internal checks (technician):

  • Remove the outer cover and locate the main control PCB.
  • Inspect for blown fuses on the board, burnt components, or discoloration.
  • Measure low-voltage outputs (e.g., 5V, 12V) according to Teka service data.
  • Replace the main PCB if the low-voltage supply is defective.

Note: Board-level component repair is not recommended for end users; replacement of the entire PCB is standard practice.

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Repair Difficulty

Hard 4/5

Required Part

Main Control PCB
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