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Letter and Number Error

Display shows a letter followed by a number - General error indicator

KitchenAid · Microwave Ovens

What does Letter and Number Error mean?

The microwave oven display shows a combination of a letter and a number, which is a general error indicator suggesting a fault that requires professional attention.

Common Causes

  • Internal system malfunction.
  • Component failure.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Try unplugging the microwave oven from the wall outlet for 30 seconds, then plug it back in.

  2. 2

    If the error persists, note down the exact letter and number displayed on the screen.

  3. 3

    Contact customer service for assistance, providing the specific error code you observed.

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 operationAuto Hood Fan OnAuto hood fan turns on high speed and cannot be turned off - Overheating preventionCONTROL LOCKEDCONTROL LOCKED displayed with 2 tones - Control Lock is active
Source: KitchenAid Microwave Ovens
Open Manual (Page 9)Search more codes in this manual