Proscenic
Timer Calibration / Clock Circuit Fault
Timer counts down too fast or too slow; cooking time does not match 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 or oscillator on main PCB, Firmware bug, Power supply instability affecting timing circuit
How to Fix / Troubleshooting
Safety first: Unplug the air fryer before opening the housing.
Steps to address timer inaccuracy:
- 1. Confirm symptom: Compare the air fryer timer to a separate clock over a 10–15 minute period to verify the discrepancy.
- 2. Power reset and firmware: Unplug for several minutes, then reconnect. If your Proscenic model supports firmware updates via app, update to the latest version.
- 3. Inspect main PCB: Open the control area and look for a small crystal oscillator near the microcontroller. Check for physical damage or poor solder joints.
- 4. Replace main PCB: In most consumer air fryers, the timing circuit is integrated; if the timer remains inaccurate after reset and firmware update, replace the main control board.
- 5. Verify after replacement: Test the timer again against a clock to ensure accuracy.
Warning: Do not rely on an inaccurate timer for unattended cooking; monitor food closely.
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Repair Difficulty
Hard
4/5
Required Part
Main Control Board
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