Maytag Oven Error Code 4d32

Code 4D32 means the UH control board on the lower oven has detected that the airflow fan is running when the control commanded it to be off, a reverse fan state error. This typically points to a stuck fan relay, a wiring short, or a faulty control board. The lower oven may disable itself until the fault is resolved.

It is not recommended to continue using the lower oven while 4D32 is active. An airflow fan running outside of its intended operating window can disrupt thermal management in the oven cavity and may indicate an underlying electrical fault in the relay circuit. The lower oven may already be locked out by the control. Use the upper oven if your range has one, and address the fault before resuming lower oven operation.

Yes. A shorted or damaged wiring harness between the fan relay and the airflow fan motor can hold the fan circuit in an energized state, which the UH control board reads as the fan running when it should be off. Inspect the harness for pinched, melted, or frayed wires, paying close attention to areas where the harness passes near heat sources or sharp metal edges. Repairing or replacing the affected section of harness can resolve the 4D32 code without replacing the control board.

Start by disconnecting power to the oven and inspecting the fan relay and its wiring harness on the lower oven UH control board. Use a multimeter to check whether the relay contacts are welded closed by testing for continuity across them when the relay is de-energized. Also inspect the wiring harness for any shorts or damaged insulation. If the relay is stuck closed, the control board will need to be replaced since the relay is typically integrated into the board. If the harness is shorted, repair or replace the affected wiring.

If the fix is a wiring repair or connector cleaning, costs may be minimal, under $50 for materials if done yourself. If the UH control board needs replacement, OEM boards for Maytag double ovens typically range from $150 to $350 for the part alone. Professional labor adds $100 to $200 depending on your market. If the fault is isolated to the relay and you are comfortable with appliance disassembly, this is a manageable DIY repair after identifying the exact failed component.