The independent heating and cooling company across the Willamette Valley and northwest Oregon
Ignitor & Flame Sensor Repair
We repair and replace furnace ignitors and flame sensors for homeowners across Oregon and Washington. If your furnace clicks, hums, or lights for a few seconds and then shuts off again, those two small parts are among the first things we look at. A cracked ignitor will not glow, and a sooted flame sensor tells the control board there is no flame even when there is. Check your thermostat settings and filter first, then call us and we will get a technician out to test the sequence properly.
Call (888) 365-6280- You reach a person, not a menu
- Open every day
- The quote comes first, in writing
Taking calls until 5:00 PM PT
What the job involves
A furnace lights in a set order: call for heat, inducer runs, pressure switch proves, ignitor heats, gas valve opens, flame sensor confirms burn. We watch that whole sequence with the furnace running and meters on it. When the ignitor is the fault, we cut power, remove the burner cover, and fit the correct replacement without touching the element with bare hands. Flame sensor work means removing, inspecting, and cleaning or replacing the rod, then verifying the microamp signal is strong enough to hold the valve open.
What we check and install
We measure ignitor resistance, check the flame signal in microamps, and look at the sensor rod for the white or brown film that builds up over a wet Northwest heating season. We also check the ground path, because a weak ground causes the same short-cycling symptoms and swapping parts will not fix it. Cracked ceramic, hairline breaks, and heat-stressed wiring all get replaced. We carry common hot surface ignitors and universal sensors, and we confirm the part matches your furnace before it goes in.
How we decide it is the right call
Symptoms narrow it fast. No glow and no light usually points at the ignitor, its wiring, or the board driving it. A furnace that lights, burns for five to ten seconds, then drops out and retries is the classic flame sensor pattern. If the flame signal reads fine after cleaning and the furnace still locks out, the problem is elsewhere and we say so rather than selling parts. Cracked heat exchangers, bad gas valves, and failing boards all need different work, and we explain what we found.
Other furnace repair work
What you get on every job
You approve a written quote first
Covering 162 cities across Oregon, Washington.Phones answered by people
Open 7 days, 8:00 AM to 5:00 PM PT.Every major brand, gas and electric
Carrier, Trane, Lennox, Goodman and more. We are not an authorized dealer for any of them.Ignitor & Flame Sensor Repair — quick answers
How long does an ignitor or flame sensor repair take?
Most visits run about an hour, including diagnosis and testing the full ignition sequence afterward. If your furnace uses an uncommon ignitor we may need to source it, and we will tell you that on the visit.
Can I clean the flame sensor myself?
We do not recommend it. Reaching the sensor means opening the burner compartment on a gas furnace, which is work we handle. Safe homeowner checks stop at the thermostat, breaker, filter, and vents.
My furnace tries three times then quits. Is that the sensor?
Often, yes. Three ignition attempts followed by lockout is the pattern we see with a dirty or failing flame sensor, though a weak ground or gas supply issue can look identical. We test rather than guess.
How it works
- Step 1
Tell us the symptom
Call or fill in the quote form. Describe the noise, the smell, the temperature, and when it started. That detail helps us bring the right parts and gives you an honest idea of the visit ahead.
- Step 2
We diagnose on site
A technician checks the thermostat, airflow, electrical connections, refrigerant behaviour and the outdoor unit. We tell you what failed and why, in plain language, before anyone reaches for a part or a price.
- Step 3
You choose the repair
We lay out the fix, any parts on order, and what happens if you wait. Once you agree, we do the work and confirm the system holds temperature before we pack up and leave.
- A real person answers
- Open 7 days
- Written quote before work starts
Why homeowners call us
- Heat pumps are our normalIn this region heat pumps outnumber furnaces, so defrost boards, reversing valves and short cycling in wet weather are everyday work for us. We know how these systems behave in a cold December rain, not just on a test bench.
- Wet winter defrost problemsIce on the outdoor coil, a unit that runs and runs without warming the house, puddles that refreeze under the pad. We trace whether it is a sensor, a stuck valve, drainage, or airflow, then fix the actual cause.
- Filtration after smoke seasonWildfire smoke turned indoor air quality into a real conversation here. We look at filter fit, return sizing and IAQ options that your blower can actually push air through, rather than choking the system with the wrong media.
- We explain before we chargeYou get the diagnosis, the options and the trade-offs before work starts. If a repair is not worth it on an old system, we say so. No pressure, no jargon dumped on you at the door.
- All major brands, gas & electricOne independent crew for Carrier, Trane, Lennox, Goodman, Rheem and more.
- Straight answersNot worth fixing? We say that out loud, and often it saves you the visit fee.
Ignitor & Flame Sensor Repair
Ready to book ignitor & flame sensor repair?
Describe the system and your ZIP. The written quote comes before any work.
- A real person answers
- Open 7 days
- Written quotes
- All major brands
- Gas & electric
Rather not call? Get a free quote →