A zone that will not heat

Cooktop Repair
Star® gas and Freedom® induction fail in different ways — one is ignition and flame, the other is detection under the glass. Surface installation also limits how the unit is reached.
Reviewed by admin · Last reviewed September 3, 2026
Overview

A cooktop or rangetop is a surface appliance. Gas ignition, induction detection, and electric element control are different technologies under similar stone. Naming gas versus induction in the booking already changes the visit.
The unit is often dropped into a cutout with drawers or an oven below. Access may be from above, from the cabinet, or both. Cracked glass is a stop, not a DIY patch.
Flame, detection, regulation
Clicking without flame is not the same as an induction zone that ignores a pan. A zone that cycles wildly is a regulation question. Controls that flicker may be the interface, not the burner. Those splits keep the scope honest.
Request the visit with the fuel type if you know it. Related cooking repairs are on the services index. Thermador Support has cookware and model notes.
Common problems we fix
Ignition that clicks with no flame
Induction that will not detect a pan
Heat that hunts up and down on one burner
Controls that flicker or ignore a touch
A cracked or damaged cooking surface
Our diagnostic process
Surface type
Star® gas, Freedom® induction, or electric — from the appliance, not assumed.
Zone behavior
Which burner failed and whether neighbors still work.
Ignition or detection
Flame path versus pan detection under glass.
Cutout access
How the cooktop sits in stone and what is below it.
The repair process
Named technology
The scope follows gas, induction, or electric findings.
Work reviewed
Required components are discussed before the surface is lifted further.
Approved zone repair
Only the approved cooktop work proceeds.
Heat response
The affected zone is checked for heat or detection as applicable.
Technician expertise
Cooktops are diagnosed as surface systems: ignition or induction detection, then heat regulation, then the cutout they sit in. Rangetops add a different access path than a flush glass unit.
Service terms after repair
Workmanship terms for completed cooktop work, where they apply, come with the estimate. No coverage length is advertised here.
Safety first Stop using a cracked glass cooktop and keep it disconnected. Gas ignition that smells of fuel should not be clicked repeatedly. Live connections under the surface are technician work.
Available in these areas
Westside
Coastal-to-inland Los Angeles County coverage for built-in Thermador kitchens in millwork.
View service areaHollywood & Central LA
Dense Central Los Angeles coverage for compact and built-in Thermador kitchens.
View service areaSan Fernando Valley
Wide San Fernando Valley coverage for built-in Thermador refrigeration and cooking suites.
View service areaSan Gabriel Valley
East–west San Gabriel Valley coverage for integrated Thermador kitchens in established neighborhoods.
View service areaSouth Bay
Coastal-adjacent and inland South Bay coverage for Thermador cooking, dishwashing, and ventilation.
View service areaMalibu / Santa Monica Mountains
Hillside and canyon coverage for built-in Thermador kitchens in the Malibu and Santa Monica Mountains area.
View service areaSoutheast / Gateway
Gateway-area cluster of Los Angeles County cities for Thermador kitchen appliance visits.
View service areaNorth Orange County
North Orange County city index for built-in Thermador cooking and refrigeration.
View service areaCentral & Coastal Orange County
Coastal and central Orange County index for integrated Thermador kitchens.
View service areaSouth Orange County
South Orange County region-to-city coverage for built-in Thermador appliances.
View service areaFrequently asked questions
Detection and the zone electronics still have to be tested. Compatible cookware rules out one owner check; it does not finish the diagnosis.
Adjacent burners may still work. Stop if you smell gas or a control will not shut off.
From the cutout, the cabinet below, or both, depending on clips, drawers, and what sits under the surface.
No. Disconnect it and keep it unused until it is inspected.
Request cooktop service
Which zone failed, gas or induction, and whether the cooking surface is still intact.
Request your repair
Pick a time that works — we’ll confirm your appointment.