From Benchmark induction that flashes an error to a 500 Series gas burner that clicks but won't light, we diagnose and repair Bosch cooktops on-site across Littleton and the SW Denver metro.
Bosch builds three very different cooktops, and each breaks in its own way. Knowing which line is on your counter tells us where to look first.
Bosch induction cooktops — the Benchmark NITP and 800 Series NIT models — rely on touch-slider control boards and coil-mounted sensors. When one zone stops heating but the panel still lights up, the culprit is usually a failed IGBT power module or a heat-sensor fault throwing an E code, not the glass surface itself.
Bosch electric radiant cooktops (500 and 800 Series NET models) use ribbon heating elements under ceramic glass with an infinite-switch or relay board controlling power. A zone that only runs full-blast or not at all points to a stuck relay or a burned element terminal.
Bosch gas cooktops (NGM models, including the 800 Series with continuous cast-iron grates) fail at the spark ignition module, the igniter electrodes, or the sealed burner ports. At Littleton's ~5,350 ft elevation, gas cooktops also need proper air-shutter and orifice calibration, or you get lazy yellow flames and sooting.
If your Bosch is doing any of these, it's a fixable fault we see regularly:
Every visit is a flat $89 diagnostic fee, credited toward the repair if you approve it.
We pull the model number (NIT, NET, or NGM prefix tells us induction, electric, or gas) so we source the right board, sensor, or igniter the first time.
We enter Bosch service diagnostics to capture stored error codes, then meter the actual failing component — power module, heat sensor, relay, or spark module — instead of guessing.
You get a firm total for parts and labor after diagnosis. Nothing gets replaced until you say yes.
We install OEM-quality, factory-specified parts, then verify every zone under load. On gas units we confirm altitude-correct flame at ~5,350 ft before we leave.
Homeowners often assume a dead Bosch induction zone means the whole cooktop is finished. In practice, the ceramic glass is the most durable part. The failures live underneath: an IGBT power module that overheated, a cooling fan clogged with dust, or a temperature sensor that drifted out of spec and tripped a protective shutdown.
Because these modules are field-replaceable, a single dead zone on a Benchmark or 800 Series induction cooktop is usually a same-day fix — far cheaper than replacing a cooktop that otherwise works perfectly. We carry common Bosch induction sensors and control components on the van.
We repair Bosch cooktops daily from 8:00 AM to 6:00 PM across Littleton, Ken-Caryl, Columbine, Chatfield, Roxborough Park, and the southwest Denver metro within about 25 miles. Call (720) 903-2603 any time to describe the symptom, or book through our online scheduling page.
Quick Answers
Littleton Appliance Repair has serviced Bosch induction, electric, and gas cooktops since 2014 across Littleton and the southwest Denver metro. We are an independent repair company, not a manufacturer, so we work on all Bosch cooktop lines. Call (720) 903-2603 to schedule a same-day diagnostic.
On Bosch Benchmark and 800 Series induction cooktops, an error code with a dead zone usually means a failed power module (IGBT), a clogged cooling fan, or a heat sensor that tripped a safety shutdown. The ceramic glass itself is almost never the cause. A technician can read the stored code and meter the failing part to confirm before replacing it.
Littleton Appliance Repair charges a flat $89 diagnostic fee, which is credited toward the repair if you approve it. The final price depends on the part and the model line, so you get a firm total after on-site diagnosis. We use OEM-quality, factory-specified parts on every Bosch repair.
FAQ
Anything else — call any hour, a real person answers.
Continuous clicking without ignition on a Bosch NGM gas cooktop usually points to a fouled or cracked spark electrode, moisture under the burner cap, or a failing spark ignition module. Drying and reseating the cap sometimes helps, but a persistent click needs the electrode and module checked with a meter.
Yes. At about 5,350 feet, thinner air changes the fuel-air mix, so Bosch gas burners can show weak or yellow flames without proper orifice and air-shutter adjustment. We verify altitude-correct flame quality on every gas cooktop before we leave.
Yes, on both induction and radiant electric models we can replace the ceramic glass surface with a factory-specified panel. We'll confirm the exact model and glass part number first, since a cracked surface should be replaced promptly to avoid moisture reaching the electronics below.
Usually, yes. Unresponsive or ghost-activating touch sliders on Bosch induction and electric cooktops typically trace to the touch control board, a moisture-triggered lockout, or a loose ribbon connector. We test the board and connections rather than assuming the whole cooktop needs replacing.
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.