Blomberg Worn or Obstructed Convection or Cooling Fan

Oven fan is noisy, rattling, or squealing during operation.

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

Debris caught in fan blades, Worn fan motor bearings, Loose fan mounting screws, Bent fan blade

Safety first: Turn off power and allow the oven to cool before accessing the fan.

Identify fan: Determine if the noise occurs only in convection mode (convection fan) or whenever the oven is on (cooling fan).
Inspect interior fan: Remove the interior fan cover and check for loose screws, food debris, or a bent blade. Tighten and clean as needed.
Check rear motor: From the back, inspect the fan motor and mounting. Tighten mounting screws.
Replace motor: If the motor squeals or grinds when spun by hand, replace the fan motor assembly.

Medium 3/5

Convection Fan Motor

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