Illumina knobs Dacor uses across its gas ranges and cooktops are control knobs that glow white the moment the burner or heating element they control is switched on, giving a visual cue that a burner is active without having to look for a flame directly.
What the feature actually does
The glow lights the moment any heating component tied to that knob turns on, not just at ignition, so a low simmer setting that produces a small, hard-to-see flame still shows the same clear white light as a burner on high. This matters most on a range with several burners running at once, where confirming at a glance which ones are still active saves walking around the cooktop checking each flame individually.
Where it appears in Dacor’s lineup
Illumina knobs are documented on current gas cooktops such as the DTG30M954FS and are also a genuine Dacor-supported feature on Heritage-collection and Professional-style ranges, spanning more than one generation of Dacor’s cooking lineup rather than being tied to a single platform.
The part that proves it is real, not just marketing copy
A genuine Dacor replacement part exists specifically for this feature — part number 107761-01, described as an illuminated simmer knob — which confirms Illumina is an actual serviceable component with its own part number, not just a marketing name for a general “glowing knob” concept.
A troubleshooting note worth knowing before booking a repair
A single dark knob whose burner still lights and heats normally almost always traces to a wiring or bulb issue isolated to that one knob’s circuit, not a system-wide electrical problem. Checking whether the burner itself still works correctly, independent of the knob light, is worth doing before assuming a bigger problem — a burner that heats fine with a dark knob is a much smaller repair than a control-board issue affecting the whole range.
Where to learn more
Our range appliance page and cooktop appliance page cover the current models where Illumina knobs appear, and our guide library covers other Dacor feature names worth understanding on their own terms. If a knob has gone dark on an otherwise correctly heating burner, mention that specifically when scheduling a repair so the technician can bring the right small part rather than diagnosing on-site from scratch. Dacor’s own site lists current ranges and cooktops equipped with Illumina controls.
