The F11 error on your Indesit Oven means the control board has detected a fault with the oven’s temperature sensor or its wiring circuit. This usually stops the oven from heating properly, and it often needs a sensor check or replacement to fix.

Error code F11
Meaning Temperature sensor (thermostat/probe) circuit fault or disconnection
Severity Medium — the oven may stop heating or heat inaccurately until fixed
Time to fix 20–45 minutes
Tools needed Multimeter, screwdriver (Phillips or flathead)

What the F11 error means

Indesit ovens use a temperature sensor (sometimes called a probe or thermostat) to monitor the internal cavity temperature and relay this information to the control board. When the board receives no signal, an inconsistent signal, or a signal outside the expected range, it triggers the F11 error to protect the oven from overheating or uneven cooking. This is similar in principle to how washing machines flag sensor faults, such as the Indesit Washing F02 Error Code, which also points to a sensor or component reading issue.

Common causes

  • Faulty or failed temperature sensor inside the oven cavity
  • Loose, corroded, or disconnected wiring between the sensor and control board
  • A short circuit caused by heat damage to the sensor wiring insulation
  • Control board fault misreading the sensor signal
  • Moisture or grease build-up around the sensor connector affecting the reading
  • General wear after years of high-temperature cycling

How to fix the F11 error

  1. Power down and unplug the oven
    Always disconnect the oven from the mains before inspecting any internal parts to avoid electric shock.
  2. Locate the temperature sensor
    The sensor is usually a small metal probe mounted on the inside back or side wall of the oven cavity, connected to wiring at the rear of the appliance.
  3. Inspect the sensor and wiring
    Check for visible damage, scorching, or loose connections at the sensor and its connector. Reseat any loose plugs firmly.
  4. Test the sensor with a multimeter
    Set the multimeter to resistance (ohms) and check the sensor’s reading against the manufacturer’s specification (usually available in the service manual). A reading far outside this range indicates a faulty sensor.
  5. Replace the sensor if faulty
    If the sensor fails the resistance test, order a genuine Indesit replacement part and fit it following the same mounting position and wiring route as the original.
  6. Reset and test the oven
    Plug the oven back in, run a short heating cycle, and check that the F11 code has cleared and the oven heats normally.

FAQ

Can I keep using my oven if it shows F11?
It’s best to switch it off and unplug it. Continuing to use the oven with a sensor fault can lead to inaccurate cooking temperatures or, in rare cases, overheating.

Do I need an engineer to fix F11?
If you’re comfortable using a multimeter and following basic wiring steps, many homeowners replace the sensor themselves. If the fault persists after replacement, it’s worth calling a qualified engineer to check the control board.

How much does a replacement temperature sensor cost?
Genuine Indesit oven temperature sensors typically cost between £15 and £40, depending on the model, plus labour if you hire an engineer.