From weak gas flames to induction burners that quit mid-boil, we diagnose and repair high-end cooktops across Littleton and the Southwest Denver foothills. Independent specialists since 2014, answering the phone 24/7.
Gas and induction cooktops fail in very different ways, and the fix depends on which technology you have. Here is what brings homeowners in the Littleton area to call us.
On gas cooktops we handle burners that will not light or keep clicking, weak or uneven yellow flames, a burner that lights but dies when you release the knob, a persistent gas smell, and grates or caps that no longer seat correctly. Many of these trace back to a fouled igniter, a bad spark module, a clogged burner port, or a regulator that has drifted out of adjustment.
On induction cooktops we fix zones that do not detect pans, elements that heat then shut off, error codes like E2 or F-codes, cracked glass tops, buzzing or fan noise, and touch controls that ignore your finger. Induction faults usually live in the coils, the power board, the control board, or a failed cooling fan, and pinning down which one takes real diagnostic gear rather than parts guessing.
Every repair starts with a flat $89 diagnostic service-call fee, and that fee is credited toward the repair when you approve the work.
Gas, induction, or radiant electric each need a different playbook. We identify the exact model and confirm what technology and wiring we are working with before touching a component.
We recreate the symptom, then take real measurements: spark voltage and igniter resistance on gas, coil and board readings on induction, and gas pressure at the manifold where relevant.
We trace the fault to a specific igniter, spark module, valve, coil, power board, or control board instead of swapping parts and hoping. That is what keeps the repair honest and the bill accurate.
You get a clear price after inspection and approve it before any work begins. We install OEM-quality parts, then test every burner or zone through a full heat cycle before we leave.
Littleton sits near 5,350 feet, and thinner air changes how gas burns.
At altitude a gas cooktop pulls in less oxygen per unit of gas, so a burner tuned for sea level runs rich, producing lazy yellow flames, soot, and sluggish boil times. Proper repair here means checking the orifices, air shutters, and regulator for correct output, not just cleaning the surface. A tech who ignores elevation will hand you back a burner that still simmers when it should sear. We calibrate gas output for the Front Range so your high-BTU burners actually perform the way the manufacturer intended.
The technology under the glass or grates decides the diagnostic path and the common failure points.
| Gas Cooktop | Induction Cooktop |
|---|---|
| Fails at igniters, spark modules, valves, and regulators | Fails at coils, power boards, control boards, and cooling fans |
| Sensitive to altitude and gas-pressure calibration | Sensitive to voltage, pan detection, and heat buildup |
| Weak flame, no spark, gas smell are typical calls | No pan detected, mid-cook shutoff, and error codes are typical calls |
| Repaired with burner tuning and part replacement | Repaired with board-level diagnosis and coil or board swaps |
High-end cooktops from Wolf, Thermador, and Gaggenau are not the same machines as builder-grade units, and they should not be repaired like them. Sealed dual-stacked burners, precise simmer control, and induction power boards demand model-specific knowledge and the right replacement parts.
We diagnose to the board and component level, source OEM-quality parts, and calibrate the finished repair to the specification your cooktop shipped with. That means a simmer that truly holds low and a sear burner that reaches full output.
We are an independent repair company, not affiliated with any manufacturer, and we service premium and mainstream cooktops alike.
Quick Answers
Littleton Appliance Repair charges an $89 diagnostic service-call fee, which is credited toward the repair once you approve it. Cooktop repairs start from $139, with the final price set after an on-site inspection. Call (720) 903-2603 to book a visit.
Yes. We diagnose and repair gas cooktops, induction cooktops, and radiant electric cooktops. Gas work centers on igniters, spark modules, valves, and altitude-correct burner calibration, while induction work involves coils, power boards, control boards, and cooling fans.
A weak yellow flame usually means the burner is running too rich, often from a clogged port, a misadjusted air shutter, or a regulator that is not tuned for Littleton's roughly 5,350-foot elevation. At altitude gas burns leaner, so cooktops frequently need burner and regulator calibration a sea-level technician overlooks.
FAQ
Anything else — call any hour, a real person answers.
Sometimes it is just cookware, since induction needs magnetic-bottom pans; if a magnet does not stick to your pot, the cooktop cannot heat it. If the right pans still are not detected, the fault is usually in the coil, the power board, or the control board, and we can measure which one on-site.
It depends on the cooktop. On premium units the glass and the electronics underneath often justify a repair rather than full replacement, but a cracked top should be taken out of service until inspected because moisture can reach the electronics. We will give you an honest repair-versus-replace assessment after we look at it.
We stock common igniters, spark modules, and control components for the brands we see most often, so many repairs finish in one visit. Board-level and brand-specific parts sometimes require a short order, and we install OEM-quality, factory-specified replacements.
We serve Littleton and the Southwest Denver foothills, including Ken-Caryl, Columbine, Chatfield, Roxborough Park, and the surrounding Southwest Denver metro within roughly a 25-mile radius. Service visits run daily from 8:00 AM to 6:00 PM.
Answered 24/7 · $89 diagnostic credited to the repair
Book OnlineReviews
Our built-in Sub-Zero was keeping the freezer fine but the upper fridge zone was sitting around 55. Turned out to be the dual-evaporator setup, exactly what the tech guessed on the phone. Brian had the sealed system diagnosed the first visit, ordered the part, and had us back to normal within the week. He didn't try to sell us a new unit like the last place did.
One of the dual-stack burners on our Wolf range would click and click but never light. He mentioned it's common up here because the burners need to be calibrated for the altitude, which no one had ever told us. Relit perfectly after and he adjusted the others while he was at it.
Fixed our Sub-Zero the same week we called. Fair price, no upsell.
Our dual-zone wine cabinet had drifted so the bottom zone wouldn't hold temp and there was condensation collecting on the glass. They diagnosed it quickly but the part had to come from the manufacturer and took about four days, so we were without it for most of a week. Once it arrived the fix was solid and both zones are holding right where they should. Worth the wait, just be ready for the parts delay on these.
Miele dishwasher wouldn't drain, standing water in the bottom every cycle. Bad drain pump. In and out in about an hour and he cleaned out the filter housing that was part of the problem too.
The door gasket on our 15-year-old Sub-Zero had gotten brittle and it was sweating around the seal. New OEM gasket and it seals like new again. Appreciated that they used the factory part instead of some universal thing.
Thermador wall oven quit heating right before we were hosting. Called in the morning and they got someone out that same afternoon. Bad igniter. He had the part on the truck and we still made our dinner.
Ice maker in our Sub-Zero was making cloudy hollow cubes and barely any of them. He flushed the system, replaced a valve, and now it actually keeps up when we have people over. Nice guy, wore booties in the house without being asked.
Solid work on our Bosch dishwasher, the drain pump had failed. The only thing is the $89 service call fee felt a little steep before I knew they credit it toward the repair. Once I proceeded it came off the bill, so no real complaint, just wish I'd understood that up front.
Our Viking freezer was building up a wall of frost and not defrosting on its own. Turned out to be the defrost heater. Fixed it and explained what was going on so I understood why it happened.
Two burners on our Wolf cooktop wouldn't spark. Tech recalibrated them for the elevation and swapped the igniters. Works better than it has in years honestly.
Warm upper zone on our Sub-Zero, classic apparently. They knew exactly what it was, ordered the evaporator part, and came back to install it a couple days later. Honest and easy to deal with the whole way through.
Not many people around here will even touch a Gaggenau. These guys did, got the control board sorted, and were straight with me about the cost of the part on a unit this expensive.
Miele steam oven throwing an error and shutting off mid-cook. The tech was great and clearly knew the unit, but he ran about 40 minutes behind the window they gave me and I had to shuffle some things around. Fixed it in one visit though and it's been perfect since, so I'd still call them again.
Had them out for our built-in outdoor grill that wasn't lighting evenly. Didn't expect them to do outdoor units but they did and dialed it in for the altitude. Grilling season saved.
Quick, clean, and they answered when I called at 9pm the night before. Dishwasher's draining again.
This was a big one, the sealed system on our Sub-Zero failed and that's a job a lot of shops won't take on. They did it right, used factory-spec parts, and stood behind the work. Given it's a $12k built-in I'm glad I found someone who actually knew these inside and out instead of just replacing the whole fridge.
Wine fridge kept fogging up on the door and the temp was bouncing around. Fixed same visit and no more condensation.