Reads carbon monoxide, oxygen, and stack temperature in the flue gas. It confirms the furnace is burning clean after a repair and catches a cracked heat exchanger by the numbers.
Trane Furnace Repair in Severance that gets your heat back
When your Trane furnace quits on a 12-degree Severance night, you need Trane Furnace Repair in Severance that actually fixes the problem. We diagnose igniters, flame sensors, control boards and blower motors on every Trane model, then explain what failed and why.
Serving Severance and nearby areas.
How big is the job?
Component repair
Blower motor, control board, or gas valve diagnosed and replaced, sometimes with an ordered part.
- 1. Part swap Igniter, flame sensor, or capacitor replaced on the spot from truck stock.
- 2. Component repair Blower motor, control board, or gas valve diagnosed and replaced, sometimes with an ordered part.
- 3. System-level Heat exchanger or full furnace work, planned in writing before anything is ordered.
Drag the needle to compareTouch and drag the needle
- 24Services from one local team
- 15Areas served around Severance
- Code firstWe read the fault code before touching anything
- Camera checkHeat exchanger scanned on every repair visit
What a Trane furnace repair includes
Every repair visit covers the diagnostic, the fix, and the safety verification. Parts are quoted separately and you approve them before we install.

Work order
Trane Furnace Repair- Full fault code diagnostic: We pull the stored fault code from the Trane control board, then test the components in the failure sequence. Igniter resistance, flame sensor microamps, pressure switch continuity, gas valve operation, and blower amp draw all get measured, not guessed.
- Replacement parts installed: Igniters, flame sensors, thermocouples, capacitors, limit switches and control boards come from truck stock when possible. We use OEM-spec parts for Trane, and we give you the part number on the invoice so the next tech knows what is in there.
- Combustion analysis: A flue gas analyzer reading confirms the furnace is burning clean after the repair. We check carbon monoxide, oxygen, and stack temperature against the manufacturer spec. If combustion is off, we adjust the gas valve manifold pressure to bring it back in range.
- Heat exchanger inspection: An inspection camera goes into the exchanger to look for cracks, corrosion, and soot. This is the check that catches a carbon monoxide problem before it becomes an emergency. You see the images and we explain what we found.
- Airflow and filter check: We measure static pressure and verify temperature rise against the data plate. A clogged filter or a dirty blower wheel throws those numbers off and shortens the furnace life. We tell you what filter to run and how often to change it.
- Written findings: You get the diagnosis, the part replaced, the combustion readings, and any recommended follow-up on the invoice. If we found something that is not urgent, it is written down so you can decide later instead of being pressured on the spot.
What the first visit covers
First visit
The first call or visit covers what happened, what the job involves and what happens next.
Trane furnace repair at your home
We handle Trane furnaces in houses across Severance and the surrounding towns.
No heat calls
Furnace dead or blowing cold air
Short cycling
Runs a few minutes, shuts off, repeats
Strange noises
Banging, squealing, or rumbling on startup
Water on floor
Condensate leaks on high-efficiency units

Trane furnace repair for businesses
We service commercial furnaces and rooftop units for Severance businesses, scheduled around your hours.
Small retail
Storefront furnaces and rooftop units
Churches and halls
Large single-zone heating systems
Light warehouse
Shop and storage space heating
Trane Furnace Repair in Severance, Colorado
A Trane furnace that locks out is telling you something specific. Reading the code and testing the components in order is how you fix it once instead of three times. We do the diagnosis before we sell you a part.
Trane Furnace Repair in Severance is the diagnostic and parts-replacement work that gets a Trane gas furnace heating again after a lockout, a failed ignition sequence, or a blower that stopped moving air. We test the igniter, flame sensor, control board, gas valve and limit switch in sequence, read the fault code off the board, and confirm combustion with a flue gas analyzer before we call the job done. Most single-component failures are repaired in one visit.
Severance sits at 4,900 feet in Weld County, where January lows hit minus 10 and furnaces run six months straight. That duty cycle wears out igniters, capacitors and blower motors faster than most homeowners expect. If you search for Trane Furnace Repair near me Severance CO after a cold snap, we can usually be at your door the same day. We also handle Trane furnace service in Severance, Colorado for units that are running but not keeping up.

- What it is
- Diagnostic and repair work on Trane gas and propane furnaces
- When it helps
- No heat, cold air, short cycling, or a fault code
- What you get
- The failed part identified, replaced, and combustion verified
What to expect on a repair call
No mystery, no waiting around. Here is exactly how a Trane furnace repair visit runs from the phone call to the final temperature check.
Tools and methods we use
Each method answers a different question. Together they leave very little to guess.
Measures gas manifold pressure and flue draft. We set manifold pressure to the data plate spec, because a furnace running rich soots up the exchanger and one running lean short-cycles.
Tests igniter resistance, flame sensor microamps, capacitor microfarads, and control board voltage outputs. This is the tool that separates a real diagnosis from parts swapping.
Goes inside the heat exchanger to look for cracks, corrosion, and soot. It is the only way to actually see the exchanger without pulling the furnace apart.
Verifies pilot flame output on standing-pilot furnaces. A weak thermocouple is a common reason a pilot will not stay lit, and this proves it in seconds.
When to call for Trane furnace repair
Your Trane furnace stopped overnight and the house is at 60 degrees with kids home from school.
Call us first thing. We triage no-heat calls with children or elderly residents to the front of the schedule.
HomesThe furnace runs constantly but the house never reaches the thermostat setting.
That is an airflow or capacity problem, not an ignition problem.
HomesYou smell gas near the furnace or the carbon monoxide alarm went off.
Leave the house and call from outside. We treat gas and CO calls as emergencies and dispatch immediately.
HomesYour Trane furnace is 18 years old and this is the third repair in two winters.
We diagnose the current failure and give you both numbers: repair cost and replacement cost.
HomesYou are buying a home in Severance and the inspection flagged the furnace.
We run a full furnace inspection: heat exchanger camera scan, combustion analysis, flue draft, gas leak test, and a temperature rise check.
Homes and businesses
How Trane furnace repair runs in Severance
Severance sits at 4,900 feet in Weld County, and that elevation changes how a furnace burns. Combustion air is thinner up here, so gas manifold pressure and orifice sizing matter more than they do at sea level.
Downtown Severance
Older homes here often have natural draft furnaces with standing pilots. We keep thermocouples and pilot orifice parts on the truck for these calls.
Severance Greens
Newer construction with high-efficiency condensing Trane units. Condensate trap cleaning and flue inspection are the common fall maintenance items here.
Weld County Road 74 corridor
Larger lots and some propane systems. Propane furnaces need different orifice sizing than natural gas, and we set manifold pressure accordingly.

- Downtown Severance
- Severance Greens
- Weld County Road 74 corridor
- Severance Charter Township area
- Timnath and Windsor border
From problem to finished result.
Slide to compare the photo with an illustrative inspection view. It is generated from the photo, not a measurement.
PhotoLocked-out Trane furnace restored same day
Before: A Severance homeowner called at 7 a.m. with a Trane XR furnace that would not light. The board showed a three-blink ignition lockout. House was at 61 degrees and dropping. The furnace had been serviced two years earlier and the filter was clean.
After: We found a cracked igniter reading open on the multimeter and a flame sensor with heavy carbon buildup. Replaced the igniter, cleaned the sensor, and verified flame signal at 6.2 microamps. Furnace lit on the first cycle and the house was back to 70 by noon.
Short-cycling fixed with capacitor and airflow
Before: A Windsor customer reported the furnace running for two minutes, shutting off, and repeating all night. The house never reached the thermostat setting. The blower sounded labored and the filter had not been changed in over a year.
After: The blower capacitor measured 4.1 microfarads against a 10 microfarad rating. We replaced it, cleaned the blower wheel, and installed a new filter. Temperature rise came back to 42 degrees, right in the data plate range. The furnace now runs 12-minute cycles.
Cracked heat exchanger caught before CO emergency
Before: A Greeley rental property had a Trane furnace from 2004 that was still heating but smelled odd. The tenant had headaches but no CO alarm had gone off. The property manager asked for an inspection before renewing the lease.
After: The inspection camera found a 3-inch crack in the primary heat exchanger. Combustion analysis showed elevated carbon monoxide at 180 ppm in the flue. We red-tagged the furnace and quoted replacement. The new unit was installed three days later and passed inspection.
Trane furnace problems we fix in Severance
Most Trane furnace failures fall into a handful of patterns.
Trane furnace blowing cold air in Severance
The blower runs but the burner never lights, so the house loses heat fast.
Furnace won't turn on and the board shows a code
A lockout means the board tried three ignition cycles and gave up.
Furnace banging noise when it starts
A bang on startup is delayed ignition. Gas builds up before it lights, and the mini-explosion stresses the heat exchanger every time it happens.
Furnace leaking water on the floor
On a high-efficiency Trane, water on the floor means a clogged condensate line or a cracked drain pan.
Blower motor runs but no heat, or heat with no blower
Either way the house is uncomfortable, and running a furnace with no airflow overheats the limit switch and trips the safety repeatedly.
Why Severance homeowners call us first
A Trane furnace that short-cycles, blows cold air, or throws a fault code is telling you something.
Same-day heat restored
Most Trane furnace repairs in Severance are finished in one visit, usually two to four hours from arrival to a warm house.
Diagnosis before parts
We meter the igniter, test the flame sensor microamps, and check the gas valve with a manometer before replacing anything.
Trane-specific knowledge
Trane XR, XB and XV series each lock out differently. We know the blink codes, the pressure switch thresholds, and the communicating thermostat quirks.
Safety checked every time
Every repair includes a heat exchanger inspection with an inspection camera and a combustion analyzer reading on the flue.
What you get in writing
Clear records you can keep and share.
Fault code findings
The code we pulled and what it pointed to
Part numbers
What was replaced, listed on the invoice
Combustion readings
Flue gas numbers recorded after the repair
Ten years on Weld County furnaces
Severance Furnace Repair Pros has been repairing furnaces since 2016, and Trane is one of our most common calls.

Fault code
Read off the control board LED or display, it names the failed step in the startup sequence
Flame signal
Measured in microamps at the flame sensor, it confirms the burner is proving flame reliably
Temperature rise
Supply minus return air temperature, compared to the data plate range to confirm airflow
Are you in our Severance service area?
Type your ZIP or town to check. If yours is not listed, call and ask.
Severance ZIP codes
- 80650
- 80546
- 80550
- 80610
What Severance neighbors say
Our Trane furnace quit on a Sunday night in January with the house at 58 degrees. They answered, told me to check the filter and the breaker while they drove out, and had a new igniter in by 9 p.m. The tech showed me the cracked igniter and the carbon on the flame sensor. Honest pricing, no upsell.
Furnace was short-cycling every few minutes and the house never got warm. They found a dirty flame sensor and a blower capacitor that was way out of spec. Two parts, one visit, and the temperature rise was back where the data plate said it should be. They also camera-checked the heat exchanger and showed me the photos.
We manage several rentals and Trane furnaces are in most of them. Severance Furnace Repair Pros has handled our emergency calls for three winters now. They document every repair with part numbers, which makes my maintenance records clean. Response time on a no-heat call has been under four hours every time.
Frequently Asked Questions
Short answers for the first few minutes. The team can cover the rest.
Describe what you are seeing and we will point you to the right next step.
(970) 1234567A flame sensor cleaning or igniter swap sits at the low end. A blower motor, control board, or induced draft assembly pushes toward the top. Heat exchanger replacement is a bigger job and we quote it separately before any work starts.
Severance Furnace Repair Pros does, and we have since 2016. We cover Severance, Windsor, Eaton, Timnath and the rest of Weld County. Call (970) 1234567 and we will confirm a same-day window if the schedule allows.
The three most common causes we find are a dirty flame sensor, a failed igniter, and a pressure switch tripped by a blocked flue or condensate line. Trane furnaces lock out after three failed ignition attempts, so the board stops trying. Pull the code, and the answer is usually in the first two digits.
Yes. If your furnace is dead, blowing cold air, or you smell gas, call (970) 1234567 immediately. If you smell gas, leave the house first, then call us and the gas utility from outside.
Get your Trane Furnace Repair in Severance scheduled
(970) 1234567If your furnace is blowing cold air, locked out, or making a noise it did not make last winter, call us.
Call for Furnace Repair in Severance
Call (970) 1234567 and describe what your furnace is doing. We answer, triage the symptom and give you a two-hour arrival window. Regular hours run 8 a.m. to 6 p.m. Monday through Friday, with emergency coverage for no-heat calls. If you are in ZIP 80650, 80546, 80550 or 80610, you are in our regular service area.








