E08
Telefunken
Low Voltage Power Supply Fault
Microwave displays E08 and the interior light and fan do not come on when starting a cycle.
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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
Blown internal line fuse, Failed low-voltage transformer or SMPS on control board, Shorted component on control PCB, Power surge damage
How to Fix / Troubleshooting
Safety first: Unplug the microwave. Internal fuses and power supplies are connected directly to mains voltage.
- Check wall outlet: Confirm that the outlet is supplying power by testing with another appliance.
- Inspect internal fuse: Remove the cabinet and locate the main line fuse (usually in a fuse holder near the power cord entry). If blown, investigate for shorts before replacing.
- Test for shorts: Check the primary side of the transformer or SMPS and the line filter for visible damage or burnt smell. If a short is suspected, the component must be replaced.
- Replace fuse with correct rating: Only use a fuse with the exact amperage and type specified by Telefunken. If the new fuse blows immediately, stop and seek professional service.
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Repair Difficulty
Professional Required
5/5
Required Part
Main Line Fuse
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