A 30-inch slide-in with five burners and a 4.4 cu ft oven is the typical choice for a kitchen that wants a Professional range without giving up the standard 30-inch opening. The PRD305WHU pairs gas on top with electric below, so a call here can involve two separate systems: a gas line and igniters above, a 240/208 V circuit and heating elements below.
The supply is the first thing we confirm. The range is delivered with no plug, so the cord or hard-wire connection was made at installation, and a loose lug at the terminal block can mimic a dead element. On the cooktop, the 18,000 BTU burner and the ExtraLow burners behave differently, which is why we test each one rather than judging by the largest flame.
Thermador lists PRD305FHU as the successor to this model. If the oven is the problem, we run the bake and True Convection modes through a full heat-up before opening anything.
Usually not. A partly blocked port, a misaligned burner cap or a weak igniter is far more likely. We clean and reseat the cap first, then check ignition and gas pressure before suggesting any replacement part.
It needs a dedicated 240/208 V, 30 A electric supply plus a gas connection, and it ships without a plug. If the home has only a standard outlet, or the wrong cord, the range will not heat properly and we would check the wiring first.
A cycle that cuts out is often tied to a door latch that did not engage or a heavy load of baked-on grease. We inspect the latch, the oven temperature sensing and the control before running another cycle.
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.