4d21 - Combination Wall Oven
Reset power to the product:
Cooling fan speed too low.
There may be a problem with an airflow restriction, the Oven Cooling Fan, or the associated wiring.
- Power unit down by turning off the circuit breaker(s) for one (1) minute.
- Power unit up by turning on the circuit breaker(s).
- Monitor the oven for one (1) minute to ensure the error code does not display again.
- Verify oven operation.
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