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Fan running (cooktop use)

Cooling fan running during cooktop usage — Normal operation

KitchenAid · Microwave Oven

What does Fan running (cooktop use) mean?

It is normal for the microwave oven's cooling fan to automatically turn on and off while the cooktop below is in use. This fan is separate from the vent fan and helps cool the microwave's controls.

Common Causes

  • Cooktop below the microwave is in use, generating heat
  • Microwave's internal controls need cooling

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    No action is required as this is a normal operational behavior.

  2. 2

    Ensure proper ventilation around the microwave oven.

  3. 3

    Continue using the cooktop and microwave as intended.

Browse all codes in this manual (10)
Verified technical data. Last updated: April 2026

Related Faults

ArcingArcing in the microwave ovenDoor messageDoor message appears in display — Door closed too long without startingError indicatorLetter followed by a number in display — General error
Source: KitchenAid Microwave Oven
Open Manual (Page 6)Search more codes in this manual