Before blaming the oven on a HDS5657U, grab a spirit level. This 500 Series dual fuel range is 36 inches wide with a 3.2 cu ft oven, and at that size it is heavy enough that being slightly out of level matters. Batter and liquids settle to the low side of a pan, so a tilted range produces lopsided cakes that look like an oven failure.
After the level, we look at the anti-tip bracket, because a range that has been moved may not be anchored anymore. Only then do we turn to the convection fan, which must even out heat across a broad cavity and has a harder time when the door seal leaks.
The feet screw in and out. On a range this heavy, two people make the job safer.
Check leveling first, in both directions. Batter flows to the low side of the pan, so a range that sits crooked bakes lopsided results even if the oven itself is working perfectly.
They are adjustable, but a range this size is safer to handle with two people. If it has to tilt at all, shut off the gas first, and call us if you are unsure.
Confirm that the anti-tip bracket catches again, and check once more that the range is level. Both are easy to miss after cleaning behind the range, and both affect safety and how evenly it bakes.
Book in about a minute, or call the desk. Same-day windows inside the Loop on most days, next-day across the rest of Houston.