Philips No Heat / Open Heater Circuit

Air fryer powers on but does not heat; fan runs and timer counts down but food remains cold.

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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

Open heating element, Tripped thermal fuse, Loose heater wiring, Failed heater relay on main board

How to Fix / Troubleshooting

Safety first: Unplug and let the unit cool before opening.

Steps:

  • Check for error codes: If no code is displayed but there is no heat, proceed with hardware checks.
  • Inspect heater: Access the heater assembly and visually inspect for breaks or burn marks on the coil.
  • Test thermal fuse: Locate the thermal fuse in series with the heater. Test for continuity; replace if open with the exact Philips-rated fuse.
  • Heater resistance: Measure resistance across the heater terminals. An open circuit indicates a failed element that must be replaced.
  • Relay/board: If heater and fuse are good, check the main board heater relay for clicking and continuity when energized. Replace the board if the relay or driver is faulty.

Warning: Do not bypass the thermal fuse or thermostat; they are critical safety components.

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Repair Difficulty

Hard 4/5

Required Part

Heating Element Assembly
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