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Auto Hood Fan On

Auto hood fan turns on high speed and cannot be turned off - Overheating prevention

KitchenAid · Microwave Ovens

What does Auto Hood Fan On mean?

The microwave oven's auto hood fan will automatically activate at high speed if the temperature from the range or cooktop below gets too hot. During this time, the fan cannot be manually turned off by the user.

Common Causes

  • High temperature detected from the cooking surface below the microwave oven.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Understand that this is a normal safety feature to prevent overheating.

  2. 2

    Allow the fan to run until the temperature below the microwave oven decreases.

  3. 3

    The fan will turn off automatically once the temperature returns to a safe level.

Browse all codes in this manual (9)
Verified technical data. Last updated: April 2026

Related Faults

ArcingArcing in the microwave oven - Sparks or flashes during operationCONTROL LOCKEDCONTROL LOCKED displayed with 2 tones - Control Lock is activeCooling Fan OnFan running during cooktop usage - Normal cooling operation
Source: KitchenAid Microwave Ovens
Open Manual (Page 3)Search more codes in this manual