Bosch Oven Error Code F32

F32 on a Bosch oven indicates a failure in the lower oven temperature sensor circuit caused by an open or short circuit in the sensor wiring. The control system cannot get a valid temperature reading from the lower oven sensor, so it disables the heating elements as a safety measure. The fault points to either a wiring issue, a faulty sensor, or a connection problem at the P24 connector on the Power Board.

No, you should not attempt to use the oven while F32 is active. The error indicates the control system cannot accurately monitor the lower oven temperature, which means it cannot regulate heating safely. Operating the oven in this condition risks uncontrolled overheating. The oven should remain out of service until the sensor circuit fault is diagnosed and repaired.

Repair costs vary depending on which component has failed. A lower oven temperature sensor typically costs between $20 and $60 for the part. A replacement wiring harness can range from $30 to $80. If the Power Board requires replacement, parts alone can range from $150 to $350 or more. Adding professional labor, total repair costs can range from around $100 for a simple sensor swap to $400 or more for a Power Board replacement.

Some causes of F32 are within reach for a knowledgeable DIYer. Checking and reseating the P24 connector on the Power Board requires no special tools and is the recommended first step. Testing and replacing the lower oven temperature sensor is also a manageable repair if you are comfortable working with appliance wiring. However, if the Power Board itself is faulty, that repair is more complex and may warrant professional service.

Resetting the oven by cycling the power may temporarily clear the F32 code, but the error will return as soon as the control system performs its sensor check again. The underlying fault in the lower oven sensor circuit must be repaired for the code to stay cleared. A reset is useful for confirming whether the fault is intermittent, but it is not a fix.