Tristar Mechanical Noise from Fan Assembly

Oven makes loud banging or rattling noises when the convection fan is running.

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.

Possible Causes

Loose fan blade, Bent fan blades hitting cover, Worn fan motor bearings

How to Fix / Troubleshooting

Safety first: Disconnect power before accessing the fan.

Inspect fan blade: Remove the fan cover and check that the fan blade is tight on the motor shaft. Tighten the retaining nut or screw if loose.
Check for contact: Spin the fan by hand and listen for scraping against the cover or cavity. Gently bend blades back into shape if they are contacting.
Assess bearings: If the fan feels rough or noisy when spun by hand, the motor bearings are worn. Replace the convection fan motor.

After reassembly, run the fan mode to confirm the noise is resolved.

Repair Difficulty

Medium 3/5

Required Part

Convection Fan Blade and Motor

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