Why built-in wall ovens deserve a specialist
Three things make wall oven repair different from a slide-in range. First, the cabinetry: a 30" or 36" oven sits inside a custom enclosure where the trim has often been scribed to the wall. Pulling the unit out has to be done slowly and with protection in place, we use a slide board and corner protectors. Second, the electrical: wall ovens are hardwired through a junction box in the cabinet, and the connection isn't always accessible without dismount. Third, the parts: many premium wall ovens (Wolf E-series, Miele M Touch, Thermador Pro) use brand-specific control boards that are not interchangeable across model years.
The temperature-is-off conversation
If your oven is running hot or cold by 20–50°, three things might be true: the temperature sensor (RTD probe) has drifted, the control board's calibration has shifted with age, or the convection fan has slowed and the heat isn't distributing. We test with an independent thermocouple before recommending any part. A surprising number of "bad sensors" turn out to be calibration adjustments that take five minutes.
Self-clean lock failures
Self-clean cycles run upward of 900°F and put enormous heat through the door latch. The most common post-self-clean failure is a door lock motor that has cooked, leaving the door locked shut. There's a specific manual-release procedure for each brand, we know them. Please don't force the door; the trim is rarely worth replacing.