What are the signs of: Oven not heating evenly?

Food burns on one side of the oven while staying undercooked on the other. Baking times consistently longer than what recipes call for. Oven thermometer shows a different temperature than the display. Convection fan not spinning or making grinding noises. Visible gap or warping in the oven door seal.

Who to call · Delft

Oven not heating evenly — Delft, Zuid-Holland

Q: Who should I call for Oven not heating evenly in Delft?

For this problem in Delft, call a Witgoedmonteur.

Food that is burnt on one side and raw on the other, or baking that takes much longer than recipes indicate, points to uneven oven heating. Causes include a failing bake or broil element, a malfunctioning temperature sensor, a broken convection fan, a door seal that no longer holds heat, or incorrect oven calibration. An appliance-repair technician can test the heating elements, recalibrate the thermostat, replace the convection fan motor, and reseal the door gasket.