Model compatibility: Bosch reuses codes across series and model years, so U31 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
Temperature-sensor error (upper/single oven)
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
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On the Discovery wall oven platform, U31 means temperature-sensor error (upper/single oven). Verify the model family because Dacor may reuse the same code label elsewhere.
You can try one controlled power reset. If the code returns, repeated resets are unlikely to solve the underlying issue and model-specific diagnosis is the better next step.
No. The code identifies the condition the control detected; it does not by itself prove which part should be replaced. Wiring, connectors, sensors, boards, airflow, water supply, or another condition may need testing.
This entry is mapped to: EO130/230/127/227, PO130/230/127/227, MOV130/230/127/227, MOH130/230/127/227. Confirm the full model number before ordering a part or using a service procedure.
