Cosori
Noisy or Worn Convection Fan Assembly
Air fryer fan is very loud, rattling, or grinding during operation.
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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
Loose fan blade on motor shaft, Debris caught in fan, Worn fan motor bearings, Bent fan blades contacting shroud
How to Fix / Troubleshooting
Safety first: Unplug the air fryer and allow it to cool before accessing the fan.
- Step 1 – Check for loose items: Remove the basket and inspect the interior for loose screws, food pieces, or foil that could be hitting the fan.
- Step 2 – Access fan: Remove the top or rear cover to expose the fan assembly. Inspect the fan blades for damage or buildup.
- Step 3 – Tighten fan nut: If the fan is mounted with a nut on the motor shaft, ensure it is snug. Do not overtighten to avoid stripping.
- Step 4 – Clean and straighten blades: Carefully clean grease from the blades and gently straighten any bent fins so they do not contact the shroud.
- Step 5 – Evaluate motor bearings: Spin the fan by hand. If it feels rough, wobbly, or makes grinding noises, replace the convection fan motor assembly.
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Repair Difficulty
Medium
3/5
Required Part
Convection Fan Motor Assembly
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