Oven overheats or temperature is wildly inaccurate, may shut down with error after heating

Safety: Turn off power at the breaker and allow the oven to cool completely before working inside the cavity.

• Locate the sensor: In most Hotpoint ovens the temperature sensor is a small metal probe at the rear of the oven cavity, usually top corner, secured with two screws.
• Remove and test sensor: Unscrew the sensor and gently pull it forward to access the connector. Disconnect and measure resistance with a multimeter. At room temperature many Hotpoint NTC sensors read around 1–1.1 kΩ or 1–2.7 kΩ depending on type (check service data if available).
• Check for open/short: If the meter shows open circuit (OL) or near 0 Ω, the sensor is faulty and must be replaced.
• Inspect wiring: Follow the harness from the sensor to the control board. Look for chafed insulation, burnt connectors, or loose plugs. Repair or replace damaged wiring.
• Replace sensor: Fit a genuine Hotpoint oven temperature sensor, route the cable away from hot surfaces, and secure it with the original screws.
• Test operation: Restore power, set the oven to 180°C, and verify that it heats and cycles without error.