Indesit oven temperature is inconsistent; sometimes too hot, sometimes too cold, without changing settings.

Safety warning: Isolate the oven from mains before accessing wiring or the control board.

• 1. Wiggle test on sensor wiring: With power off, inspect and gently move the sensor wiring and connectors. Reseat any loose plugs.
• 2. Check sensor resistance over time: Measure the sensor resistance at room temperature, then again after heating the oven and allowing it to cool. Large jumps or open circuits indicate a failing sensor.
• 3. Inspect thermostat (if fitted): On mechanical models, check for pitted or burnt contacts and excessive play in the shaft. Replace the thermostat if suspect.
• 4. Examine control board solder joints: Look for cracked or dull solder joints around relays and connectors. Reflow or replace the board if necessary.