An oven that bakes unevenly or won’t reach the set temperature is frustrating but, in most cases, a fairly routine repair. Here’s what’s usually behind it.
Sensor Faults Are the Usual Culprit
A failed or drifting temperature sensor is the most common cause, showing as an F3 (open circuit) or F4 (shorted circuit) error code.
How to Confirm It’s Not Just the Recipe
Placing an independent oven thermometer inside and comparing it to the set temperature over a full preheat cycle can confirm a sensor issue rather than a one-off baking mishap.
When It’s an Over-Temperature Fault
If the oven shuts itself down rather than just baking inaccurately, that points to F2, a genuine over-temperature safety event that needs prompt inspection.
Getting It Fixed
Temperature sensor replacement is one of the more routine, affordable repairs we perform. Visit our oven repair page.