Severin
Control Timing / Oscillator Fault
Microwave timer counts down too fast or too slow compared to real time.
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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
Faulty clock crystal on control PCB, Control firmware issue, Power supply instability to microcontroller
How to Fix / Troubleshooting
Safety first: Unplug before accessing the control board.
- Step 1 – Confirm symptom: Compare a 1-minute cook cycle with a stopwatch. If significantly off, timing is incorrect.
- Step 2 – Power reset: Unplug for 10 minutes and reconnect to see if timing normalizes.
- Step 3 – Surge protection: Use a surge-protected outlet to ensure stable supply.
- Step 4 – Control board replacement: Timing faults usually require replacement of the control PCB, as the clock crystal or microcontroller is defective.
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Repair Difficulty
Hard
4/5
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