Philips Safety Interlock or Overheat Alarm

Air fryer emits a loud beeping or alarm and stops, but no error code is shown.

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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

Basket removed during cooking, Overheat protection triggered, Timer completed but user misinterprets alarm, Faulty buzzer driver causing continuous alarm

How to Fix / Troubleshooting

Safety first: If the alarm sounds unexpectedly, turn off and unplug the unit until you identify the cause.

Steps:

  • Check basket: Ensure the basket is fully inserted and the safety switch is engaged.
  • Overheat: Allow the unit to cool for 20–30 minutes and ensure vents are clear before restarting.
  • Timer: Confirm whether the alarm corresponds to end-of-cycle beeps. Consult the user manual for normal alarm patterns.
  • Internal fault: If the buzzer sounds continuously or randomly, inspect the control board for a stuck buzzer driver transistor and replace the board if necessary.

Warning: Do not disable the buzzer; it is part of the safety and user notification system.

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Repair Difficulty

Medium 3/5

Required Part

Main Control Board (Buzzer Circuit)
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