Hansa
No Power – Primary Supply Failure
Microwave does not start at all; display is blank and no lights or sounds when plugging in.
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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 mains fuse, Faulty power cord, Defective noise filter board, Open thermal fuse on cavity or transformer
How to Fix / Troubleshooting
Safety first: Ensure the microwave is unplugged before any inspection.
- Check outlet and breaker: Test the wall outlet with another appliance. Reset any tripped breakers or replace blown fuses in the home distribution board.
- Inspect power cord and plug: Look for visible damage, burns, or loose pins. If damaged, do not use the microwave until the cord is replaced by a professional.
- Try a different outlet: Plug the microwave into a known-good outlet on a different circuit to rule out house wiring issues.
- Internal fuse and thermal fuse: If the unit still shows no signs of life, the internal mains fuse or thermal fuse may be open. These are inside the cabinet and should only be checked and replaced by a qualified technician.
Warning: Never bypass or oversize fuses; always use the specified Hansa replacement parts.
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Repair Difficulty
Hard
4/5
Required Part
Internal Mains Fuse
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