The oven is the surprise in the HDS8057U for anyone upgrading from a domestic-brand range. Its gas cooktop sits over a 2.8 cu ft electric convection oven inside a 30-inch freestanding body (800 Series, dual fuel), and that cavity is noticeably smaller than a typical American oven of the same width. A European design keeps the cavity compact and well insulated, which helps it hold temperature. A full-size roasting pan should be measured against the cavity before purchase.
Over time, the electric oven is where wear appears. The bake element can fail while the cooktop stays fully usable, and the door seal can harden and make temperatures drift. The cooktop and oven run on separate systems, so a cold oven beside a working cooktop is an electric-side job, which means three suspects.
Those are the bake element, a relay on the control board, and the temperature sensor, and we test them in that order.
This is a European-style cavity: compact and thickly insulated. The upside is steadier heat and lower energy use. The downside is that big roasting pans may not fit, so measure first.
The oven is electric, so the bake element, a relay on the control board or the temperature sensor is to blame. The gas side has nothing to do with it.
Yes. A hardened seal leaks heat around the door and makes temperature unsteady, so food bakes unevenly. Replacing a seal is a small, contained repair compared with the baking trouble it causes.
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