What F2 13 Means
F2 13 means the power board has found the cavity temperature sensor to be open or short circuit - either way, the oven has lost its only honest measurement of how hot the inside is. The documented checks are the sensor harness connection, then the sensor, then the power board.
Common Causes of F2 13
- A cavity sensor that has gone open or short circuit
- A damaged or disconnected sensor harness
- A power board input that has failed to read the sensor
🔧 One Safe Check You Can Try
Switch the oven off at the breaker and leave it off. An oven that cannot read its cavity temperature is one you should not be cooking in, and there is no owner-level test that changes that.
⚠ Why You Shouldn't Go Further Than That
- Leave the oven off at the breaker and unused until it has been diagnosed, because temperature regulation depends entirely on the sensor this code says has failed.
- The sensor sits inside the cavity near the top element, and removing it carelessly drags the surrounding insulation with it.
- The element terminals in that area go brittle after years of heat and snap off as soon as they are pulled, adding a wiring repair to the job.
- Fitting a sensor with a different resistance curve gives an oven that heats confidently to the wrong temperature, which is worse than one that refuses to heat.
Opening a panel to inspect or repair something yourself doesn't automatically cancel your manufacturer's warranty — but it can risk accidental damage, and some manufacturers do have specific service conditions. Check your product's warranty terms, or ask us, before deciding.