Dacor Oven Error Code U32

U32 means the control board has detected an open circuit in the upper or single oven temperature sensor (probe 2). The A/D converter registered a value of 0x3F0 or higher for 60 consecutive seconds, indicating the sensor signal is out of range. This prevents the oven from accurately measuring and regulating temperature. The fault points to the probe itself, its wiring harness, or the connections at the relay board.

No. When U32 is active, the oven cannot reliably monitor its internal temperature, which means it cannot regulate heat safely. Operating the oven in this condition risks overheating or unpredictable temperature behavior. The oven should remain off until the fault is diagnosed and the sensor circuit is restored to proper function.

Repair costs vary depending on the root cause. If only a connector needs reseating or cleaning, there may be no parts cost, though a service call fee typically ranges from $75 to $150. Replacing the temperature probe generally costs between $30 and $80 for the part, plus labor if a technician is involved. A new wiring harness or relay board will add to that range, with total repair costs potentially reaching $150 to $400 or more depending on which components need replacement.

A knowledgeable DIYer can attempt some steps, starting with inspecting and reseating the probe connector at the relay board. If a loose connection is the cause, this may resolve the error without any cost. However, if the probe or wiring harness needs replacement, some disassembly of the oven cavity may be required, and working near the relay board involves electrical components that should be handled with the oven fully unplugged.

A power reset may temporarily clear the displayed code, but the fault will return within 60 seconds of the oven attempting to operate if the underlying problem has not been corrected. Because the error requires 60 continuous seconds of an out-of-range A/D reading to set, any persistent open circuit in the probe or harness will trigger it again as soon as the oven tries to read temperature.