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M Series Oven Upper Left Convection Element Relay Shorted | 0421 Error


  • Fault code 0421
  • Error code 0421
  • 0421 appeared on control panel
  • M Series Oven shows 0421
  • Device mapping, failure mapping, location mapping


  • Upper left convection element relay shorted


  1. Turn the home circuit breaker to the unit off for 10 seconds and reset.
  2. Retest unit operation.
  3. If these steps do not resolve the issue, no further troubleshooting advice is available for fault code 0421. Contact Factory Certified Service to schedule an appointment for repair.


Need further assistance? Contact Customer Care at 800.222.7820 or provide your information below and request a Customer Care representative contact you.

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