Sunbeam
Timer / Clock Calibration Error
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 timing crystal on control PCB, Microcontroller firmware issue, Electrical noise affecting timing circuit
How to Fix / Troubleshooting
Safety: Unplug before opening the unit.
Steps:
- 1. Confirm discrepancy: Use an external timer to compare a 10-minute cycle. If the difference is minor (a few seconds), it may be normal.
- 2. Power reset: Unplug for 10 minutes to reset the microcontroller and retest.
- 3. PCB inspection: Access the main control PCB and inspect around the timing crystal (small metal can) for cracked solder joints or damage.
- 4. Replace PCB: If timing remains significantly off, the control PCB will generally need replacement; timing components are not easily serviced.
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Repair Difficulty
Hard
4/5
Required Part
Main Control PCB
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