All the cooktop space on the PRD366WGU goes to six open gas burners, with no griddle, and the total reaches 103,000 BTU. Underneath sits the 5.7 cu ft electric oven with True Convection found throughout Thermador’s 36” Pro Grand dual-fuel ranges, so bake, broil, and convection are diagnosed identically no matter which cooktop layout rides above.
Having no griddle to isolate matters for diagnosis. Six burners share one gas supply, so several failing to light together is more likely a supply-side matter than six igniters dying at once.
The range also ships with a temperature sensor, and when a reading from it looks off, we confirm the oven’s own heat before blaming the oven. Any gas smell or uneven flame sends us to the range’s gas valve before further steps.
Two cooktop layouts, one 36'' dual-fuel line. Two extra open burners take the griddle's place on the WGU, which explains 103,000 BTU against the WDGU's 70,000.
It is a probe for tracking food temperature while it cooks, separate from the oven's own control. A bad probe reading does not mean the oven itself heats wrongly.
Probably not. Burners that fail together tend to point at the shared gas supply, so we check that first before touching individual igniters. If only one burner is dead, the usual local causes come first.
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