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Cooling Fan On

Fan running during cooktop usage — Microwave oven cooling

KitchenAid · Microwave Hood Combination

What does Cooling Fan On mean?

The microwave oven has a separate cooling fan that automatically activates when the microwave is in use or when the cooktop below it is being used. This fan helps cool the microwave's internal components and controls.

Common Causes

  • Normal operation to cool internal components during microwave use
  • Normal operation to cool microwave controls while the cooktop below is being used

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    No action is needed, as this is a normal operational sound and function.

  2. 2

    Do not attempt to disable or obstruct the cooling fan.

  3. 3

    Ensure adequate ventilation around the appliance as recommended by the installation instructions.

Browse all codes in this manual (12)
Verified technical data. Last updated: April 2026

Related Faults

ArcingArcing inside the microwave oven cavityControl Lock2 tones and padlock icon — Control Lock activatedConvection Odor/SmokeOdor and smoke during initial convection cooking cycles
Source: KitchenAid Microwave Hood Combination
Open Manual (Page 6)Search more codes in this manual