Jenn-Air Oven Error Code 4d41

Code 4d41 indicates that the upper oven fan is rotating in reverse at high RPM during a cook or clean cycle. This fault is specific to Jenn-Air ovens with UH1 or UH2 controls. The control board detects the abnormal fan behavior but does not take automatic corrective action, so the oven may continue to run. A technician should inspect the fan motor and related wiring to diagnose the underlying cause.

Because the control does not shut down the oven when this code appears, the appliance may continue to operate, but doing so is not recommended until the fault is diagnosed. A fan running in reverse at high speed can result in uneven cooking performance and may indicate a motor that is at risk of further failure. Avoid running self-clean cycles until the problem is resolved, as the high temperatures involved can accelerate motor damage.

Repair costs vary depending on the root cause. A fan motor replacement typically runs in the range of $150 to $350 including parts and labor, while a control board replacement can cost $200 to $500 or more depending on the specific model. If the issue is a loose wiring connection or improperly seated fan blade, a service call fee alone may cover the repair. Getting a diagnostic visit from a qualified technician is the best way to determine the exact cost.

Some aspects of this diagnosis are accessible to a knowledgeable DIYer, such as checking whether the fan blade is properly seated on the motor shaft or inspecting wiring connections for obvious damage. However, testing motor windings and evaluating control board output requires a multimeter and familiarity with appliance electrical systems. Replacing the fan motor or control board is best handled by a qualified technician if you are not experienced with oven repairs.

Resetting the oven by cycling the circuit breaker may temporarily clear the displayed code, but if the underlying cause is not repaired, the fault will return once the oven enters a cook or clean cycle and the fan behavior is detected again. A reset is not a repair and should only be used to confirm whether the code reappears under normal operation.