From the open-burner RNB range to the Platinum wall oven, we diagnose weak flames, dead igniters and drifting oven temps on-site. Independent techs, OEM-quality parts, and altitude-aware calibration for Littleton kitchens.
BlueStar builds commercial-derived ranges and wall ovens, so the parts that give trouble are not the ones you'd expect on a mass-market appliance.
BlueStar's signature is the open gas burner and a heavy cast-iron oven cavity that runs on a hidden bake burner instead of a coiled element. That design puts an enormous 22,000+ BTU load through the oven's spark igniter and safety valve, so when an oven stops heating on an RNB or RCS range, the culprit is almost always a weakened hot-surface or spark igniter no longer drawing enough current to open the gas valve.
The convection Platinum and Heritage wall ovens add a rear fan motor and a second heating circuit, which introduces failure modes like a seized convection motor bearing, a tripped thermal cut-off behind the back panel, or a scorched relay on the control board. Because BlueStar uses simple, serviceable mechanical and electromechanical parts rather than sealed modules, most of these are repairable rather than throwaway. That is exactly the kind of unit we like working on.
If your BlueStar range or wall oven is doing any of these, it's a service call, not a replacement.
Every visit starts with the $89 diagnostic service-call fee, credited toward your repair once you approve it.
We confirm the BlueStar model and series from the rating plate (usually behind the kick panel or oven door), then check gas supply pressure, igniter resistance and burner port condition before touching a part.
Using a meter we test the igniter's amperage draw against BlueStar's spec, verify the safety valve opens, and on convection models check the fan motor and thermal cut-off. This tells us the exact failed component instead of guessing.
You get a firm price using OEM-quality, factory-specified parts. Common igniters and valves we stock; less common Platinum control boards are sourced fast. Nothing proceeds without your go-ahead.
We replace the part, then re-check oven temperature against a calibrated thermometer and, for gas models at our 5,350 ft elevation, verify the flame and calibration suit the thinner air so your oven holds its setpoint.
Littleton sits around 5,350 feet, where there's roughly 17% less oxygen than at sea level. BlueStar's high-BTU open burners and cast-iron oven are tuned aggressively, so at altitude we often see lazy yellow-tipped flames, delayed ignition, and oven temps that read fine on the dial but bake slow.
When we service a BlueStar here we check that the range was set up for high-altitude operation — the correct orifices and air-shutter adjustment — and recalibrate the oven thermostat to compensate. A unit that was installed at sea level and shipped to Colorado frequently needs this, and it's a common reason a 'broken' oven is actually just miscalibrated for our thin air.
We work on the full residential lineup, gas and dual-fuel.
The classic open-burner professional ranges (30 to 48 inch). Most common repairs: oven igniters, safety valves, burner ports and door hinge/gasket wear from our dry climate.
Precious Metals dual-fuel and gas ranges with electric convection ovens. We handle fan motors, thermal cut-offs, control boards and temperature drift.
The value-line professional range. Same core burner and oven architecture — we diagnose ignition, valve and calibration issues the same way.
BlueStar built-in wall ovens and RGTNB/RBCT cooktops. Igniter, spark module, valve and convection repairs, plus recalibration after install.
Quick Answers
On a BlueStar range or wall oven the most common cause is a worn oven igniter that no longer draws enough current to open the gas safety valve, so you hear clicking or see the burner light slowly or not at all. Less often it's a failed safety valve, a clogged burner port, or on convection models a tripped thermal cut-off. A technician can confirm the exact part with a meter test on-site; call Littleton Appliance Repair at (720) 903-2603 to book.
Often yes. At Littleton's roughly 5,350-foot elevation there is less oxygen, so BlueStar's high-BTU gas burners can produce weak flames and ovens that bake slow even when the dial looks correct. We verify the range was set up for high altitude and recalibrate the oven thermostat, which fixes many temperature complaints without replacing any parts.
We charge an $89 diagnostic service-call fee that is credited toward the repair once you approve it, and we give a firm price after diagnosing the unit on-site. Common BlueStar repairs like an oven igniter or safety valve are typically modest; a Platinum convection control board costs more. You always approve the price before any work begins.
FAQ
Anything else — call any hour, a real person answers.
We install OEM-quality, factory-specified parts that match BlueStar's specifications for igniters, safety valves, convection motors and control boards. We are an independent repair company, not an authorized BlueStar dealer, but we source the correct parts for your exact model and series.
We service the residential lineup: RNB and RCS open-burner ranges, Platinum and Heritage series, BlueStar wall ovens, and RGTNB/RBCT cooktops in 30, 36, 48 and 60 inch widths, both gas and dual-fuel configurations.
Yes. Uneven baking usually points to a drifted oven thermostat, a failing convection fan on Platinum or Heritage models, or a burner not seated correctly. We measure the actual cavity temperature against a calibrated thermometer and correct the cause rather than just adjusting the dial.
We serve Littleton and the surrounding communities including Ken-Caryl, Columbine, Chatfield, Roxborough Park and the southwest Denver metro, 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.