Self-cleaning cavities on both the 3 cu ft and the 1.3 cu ft ovens give the PRL486JDG two chances to hit a lock or sensor error, and it runs on a 120 V circuit with a 2,920 W rating, the highest draw among the plug-in gas models here. That is a good reason to look at the outlet and cord.
Hot air broil and True Convection both rely on a fan, so we listen first. A screech or a rattle during preheat points to the motor or blade, and a fan that runs but gives weak airflow may be blocked. The gas grill/broiler is checked for clean ports and a quick, even flame.
If Self-Clean stops, we examine the door latch, the lock motor and the thermal fuse path. Thermador lists the model on its site, without naming a successor, and its 28 15/16-inch depth means it extends beyond a standard counter, so we plan a clear path for service.
A light hum is normal. A loud scraping or squealing means the blade or motor needs inspection. Stop using convection modes and call us so a failing motor doesn't stress other parts.
The 1.3 cu ft cavity has its own latch, lock motor and sensor. One of those may be the cause while the large oven is fine. We test each part individually.
A worn plug or loose outlet heats up under load and can disrupt ignition and controls. We inspect both and advise on replacing the outlet.
Request a visit online in about a minute or phone our coordinators. Close-in neighborhoods often see a same-day slot; the outer counties usually get the next day across Houston.