Black+Decker No heat / open heater circuit

Air fryer runs but does not heat; 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

Failed heating element,Blown thermal fuse in heater circuit,Loose heater wiring connector,Failed heater relay on main control PCB

How to Fix / Troubleshooting

Safety first: Unplug and cool the unit before opening. Heating components can remain hot after use.

Troubleshooting steps:

  • 1. Confirm fan operation: Start a cycle and listen for the fan. If the fan runs but no heat is produced, suspect the heater circuit.
  • 2. Visual check of element: Remove the basket and look at the heating element. Obvious breaks or heavy pitting indicate failure.
  • 3. Access heater wiring: Remove the rear or bottom cover to reach the heating element terminals and associated wiring.
  • 4. Test continuity: Disconnect one heater lead and measure resistance across the element. Infinite resistance means the element is open and must be replaced.
  • 5. Check thermal fuse: Locate the in-line thermal fuse near the heater. Test for continuity; replace if open, ensuring the new fuse matches the original rating.
  • 6. Inspect control board relay: If element and fuse are good, the heater relay on the main control PCB may not be closing. Look for burnt contacts or cracked solder joints; replace the board if defective.
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Repair Difficulty

Professional Required 5/5

Required Part

Heating Element Assembly
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