Bush
Timing / Clock Circuit Error
Microwave display works but time counts down extremely fast or extremely 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 control PCB oscillator, Firmware glitch, Power supply instability to control board
How to Fix / Troubleshooting
Safety: Unplug before accessing internal electronics.
- Reset unit: Unplug for 10 minutes to reset the control board. Re-set the clock and test.
- Check mains frequency setting: Some models have internal settings for 50/60 Hz. If incorrectly set (service mode), timing may be off; this is usually for technicians only.
- Replace control PCB: If timing remains incorrect, the control board is likely defective and should be replaced.
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Repair Difficulty
Hard
4/5
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