--- title: "Oven bakes unevenly" description: "Everything works and nothing is right. One complaint here carries two unrelated problems behind it, each with its own repair: an oven whose sensor now reads a few degrees out," url: "https://askomiami.support/symptoms/oven-bakes-unevenly/" date_modified: "2026-09-13" Appliance type: "Ranges, Wall ovens" --- # Asko oven bakes unevenly ### What to do in the next ten minutes Bake something familiar on a middle shelf and look at where it is pale. Even underbaking with correct timing points at the element or the thermostat; one side pale points at airflow or the door. Shut a paper strip in the door at several points round it and tug it: anywhere it slides out easily, the seal is not sealing. ### Why one reading proves nothing A probe placed centrally reports what happens nothing else. An oven can hold that number perfectly and still be forty degrees cooler at one corner, which is what produces the complaint. So the cavity is mapped at several positions through a full preheat and hold, and only then is an offset discussed. ### What a European oven in an American kitchen adds Rack positions, tray sizes and the habits that go with them are all slightly different, and a machine that bakes correctly can still disappoint somebody using it the way they used the last one. We say so where that is what the map shows, rather than adjusting an oven that is right. The door seal has taken a set Heat leaving at one corner shows as an oven that browns on one side, and the gasket is an ordinary part. It is the most common cause of uneven baking on any oven. The convection fan has slowed A fan turning slowly moves air unevenly rather than not at all, so the oven works and the results drift. Measured under load rather than judged by sound. The sensor has drifted Accuracy rather than evenness. Where the map shows the cavity is even but consistently cool or hot, an offset is the answer and it is set where the platform allows. Is it uneven or just wrong? Even underbaking is accuracy. One side pale is evenness. The two lead to different parts and the difference is visible on a single tray of biscuits. Does the door seal all round? Paper closed at intervals, cold. It costs nothing and it settles the commonest cause. Has anything changed in the kitchen? A new rack position, a different tray, or a machine that has been moved. All three produce this and none is a repair. One side browns and the other does not What it usually means Accuracy and evenness are different problems with different parts A door seal that has set is the commonest cause of uneven by a distance Measured with an independent probe at several points, not one What to do in the next ten minutes Bake something familiar on a middle shelf and look at where it is pale. Even underbaking with correct timing points at the element or the thermostat; one side pale points at airflow or the door. Shut a paper strip in the door at several points round it and tug it: anywhere it slides out easily, the seal is not sealing. Why one reading proves nothing A probe placed centrally reports what happens nothing else. An oven can hold that number perfectly and still be forty degrees cooler at one corner, which is what produces the complaint. So the cavity is mapped at several positions through a full preheat and hold, and only then is an offset discussed. What a European oven in an American kitchen adds Rack positions, tray sizes and the habits that go with them are all slightly different, and a machine that bakes correctly can still disappoint somebody using it the way they used the last one. We say so where that is what the map shows, rather than adjusting an oven that is right. ### Should I just set an offset? Only once the map shows the cavity is even. An offset applied to an uneven oven moves the whole problem rather than solving any of it. ### Is it worth replacing the seal on an old oven? Usually — it is inexpensive, it is the commonest cause here, and it also stops heat going into the cabinetry around a built-in oven, which matters in a tall run. --- **[Read full article: Oven bakes unevenly](https://askomiami.support/symptoms/oven-bakes-unevenly/)**