OBH Nordica Inadequate Ventilation / Cooling System Issue

Microwave exterior gets very hot to the touch during normal use.

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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

Blocked vents, Failed cooling fan, Installation in confined space, Continuous high-power operation

How to Fix / Troubleshooting

Safety first: If the cabinet becomes too hot to touch or you smell burning, unplug the unit immediately.

  • Step 1 – Check clearances: Verify that the microwave has the minimum side, top, and rear clearances specified in the OBH Nordica manual.
  • Step 2 – Clean vents: Remove dust and grease from intake and exhaust vents using a vacuum and soft brush.
  • Step 3 – Test cooling fan: During operation, listen and feel for airflow from the exhaust vents. If there is no airflow, the cooling fan may have failed.
  • Step 4 – Replace fan if needed: With power disconnected, access and replace the cooling fan motor if it is not operating or is seized.
  • Step 5 – Adjust usage: Avoid running multiple long, high-power cycles back-to-back without allowing cooling time.
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Repair Difficulty

Medium 3/5

Required Part

Cooling Fan Motor
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