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Furnace Repair in Lehi, UT: gas furnace and ductwork in a basement mechanical room

Furnace Repair in Lehi, UT

Reliable Furnace Repair for Gas and Electric Models

A furnace that will not light turns the whole house against you. Our experienced technicians diagnose and repair furnaces across Lehi fast, often the same day you call.

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Home / Services / Furnace Repair
Our technicians who handle Furnace Repair in Lehi, UT
Serving Lehi

Experienced HVAC Pros You Can Count On

Acting fast on a struggling AC or a short-cycling furnace prevents a small repair from becoming a full system failure. Lehi HVAC brings professional HVAC service to Lehi properties with the diagnostic skill and stocked trucks to handle any situation.

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From the hallway, a furnace that will not heat looks the same no matter what broke. Inside the cabinet, though, the sequence is strict: inducer on, pressure switch closed, igniter glowing, gas valve open, burners lit, flame proven, and finally the blower moving heat through the ducts. Diagnosis is mostly a matter of finding where that chain breaks. In Lehi homes, it tends to be the same handful of culprits: a flame sensor coated in oxide, a hot surface igniter cracked by thermal cycling, a pressure switch held open by a tired inducer or a plugged condensate trap, or a control board with a burned relay.

Quick ResponseMost visits booked the same day
Price Before WorkNo surprise charges
Any Make or ModelCode-compliant work

When the AC quits in summer, see AC Repair.

When to Call for Furnace Repair in Lehi

The sooner you notice these red flags, the easier and cheaper the fix. Keep an eye out for the following clues:

  • Grinding or high-pitched squeals from the blower
  • A furnace that shuts off every few minutes before the house warms up
  • Burners light, run a few seconds, then shut down repeatedly
  • Booming or banging at light-off from delayed ignition
  • A fan that keeps running while the registers blow cool air
  • Water, rust stains, or black soot around the flue or cabinet
  • Yellow, wavering burner flames where they should be sharp blue
  • Clicking and a glowing igniter with no burner flame

Early Action Saves Money

What seems like a minor issue today can take out a compressor or heat exchanger tomorrow. Call (385) 206-5812 at the first sign of trouble.

Gas furnace with the burner panel off and a new igniter ready in Lehi, UT
A failed igniter or a dirty flame sensor is behind many no-heat calls, and both are usually same-visit fixes.
Our Approach

What Goes Into Our Furnace Repair

Lehi HVAC repairs furnaces by testing the sequence, not guessing at it. Our experienced technicians watch the startup step by step and measure at each stage: igniter resistance, flame signal in microamps, pressure switch operation against actual inducer draft, gas valve voltage, and blower and capacitor health. Every visit includes the safety fundamentals on a fuel-burning appliance: heat exchanger inspection, leak-testing of gas connections, and flue draft verification, because the difference between a furnace problem and a furnace hazard is not visible from the thermostat. We measure temperature rise against the data plate before we leave so the fire and the airflow are matched the way the manufacturer intended.

Lehi HVAC services natural gas, propane, and electric furnaces of every major brand, from standard 80 percent units to condensing high-efficiency models with their traps, drain lines, and dual pressure switches. Our trucks carry the parts that really fail, such as igniters, flame sensors, pressure switches, capacitors, inducer assemblies, and blower motors, so a typical no-heat call ends with the house warming up. Call (385) 206-5812 for furnace repair anywhere in Lehi, and we can have someone out today.

Typical Costs

How Much Does Furnace Repair Cost in Lehi?

Most furnace repairs in Lehi cost between $150 and $600. Ignition and sensor problems are usually the least expensive, while blower motors, control boards, and heat exchangers cost more. Lehi HVAC tests the system, finds the actual fault, and quotes the repair before any work begins.

What Moves the Cost Up or Down

  • Furnace age and type, because 90%+ efficiency models have more specialized parts
  • A cracked heat exchanger, which is a safety issue and usually points to replacement
  • Timing, such as a no-heat call on a cold night versus a scheduled repair
  • Access to the furnace in attics, closets, or crawlspaces

If your furnace is past 15 to 20 years old or the repair is a major one, we'll give you repair and replacement prices side by side. Call (385) 206-5812 for a quote.

RepairTypical costWhat it usually means
Flame sensor cleaning or replacementBurners light but cut out almost immediately$80–$250Burners light but cut out almost immediately
Hot surface igniter replacementNo ignition; one of the most common winter failures$150–$400Furnace clicks and tries to start but never lights
Draft inducer motorLoud humming or grinding at startup, then lockout$400–$1,000Loud humming or grinding at startup, then lockout
Blower motorNo airflow, or the blower runs nonstop$400–$1,500No airflow, or the blower runs nonstop
Control boardErratic behavior, error codes, or no response at all$300–$700Furnace won't respond to the thermostat
Gas valve replacementValve fails to open, so the furnace never lights$250–$700Igniter glows but gas never flows to the burners

Typical ranges for common repairs. Your exact price is quoted after diagnosis.

How It Works

What to Expect From Our Furnace Repair

We work through a clear, repeatable process so nothing gets overlooked on your property.

1

Startup Sequence Testing

The furnace is run through its startup while we measure inducer draft, pressure switch response, igniter resistance, flame signal, and gas valve operation. The goal is to pinpoint the exact step that fails.

2

Safety Verification

The heat exchanger is inspected, gas connections are leak-tested, and flue draft verified on every visit. A furnace repair that is not proven safe is not finished.

3

Expert Repair

Igniters, flame sensors, pressure switches, capacitors, and motors ride on the truck, so most furnaces are lit and heating again before we pack up.

4

Final Cycle Testing

Before we leave, the furnace runs full cycles while we check temperature rise against the data plate, listen for clean, quiet ignition, and test each limit and safety control.

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FAQ

Your Furnace Repair Questions Answered

Still not sure? A quick call gets you a straight answer.

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Most gas furnaces last fifteen to twenty years with good care, and electric models often outlast them. Regular filter changes and yearly service make the biggest difference between a unit that makes it to twenty and one that quits at twelve. If yours is in that range and needs a major repair, we will tell you honestly whether it makes sense. Call (385) 206-5812 in Lehi for straight answers.
It deserves prompt attention. Booming at light-off means gas is accumulating before it ignites, usually from dirty burners or a weak igniter, and each hard light-off stresses the heat exchanger, the one part you never want to crack. It is a straightforward fix caught early. Call (385) 206-5812 before it becomes an expensive one.
Most of the time, the furnace cannot prove it has a flame. Oxide builds up on the flame sensor, the board loses the signal, and it closes the gas valve as a precaution. After three failed attempts, most furnaces lock out. A cleaning can buy time, but if the sensor keeps fouling, something is causing it. Call (385) 206-5812 and we will fix the cause in Lehi.
It depends on how far the sequence gets. No glow from the igniter usually means the igniter is cracked or the board is not powering it. A glowing igniter with no flame points to the gas valve or the circuit that controls it. And if the click is followed by nothing at all, the pressure switch may not be closing because the inducer is weak or the flue is blocked. Every stage gets tested. Call (385) 206-5812 for a diagnosis.
Done Right

Why Professional Furnace Repair Matters

A furnace combines gas, flame, high voltage, and a flue in one cabinet, and the failure that matters most is the one you cannot see from outside: a compromised heat exchanger passing combustion gases into the air your blower pushes through the house. Delayed ignition that booms at light-off stresses that exchanger further every morning it goes unfixed. Meanwhile the diagnostic traps stack up: a furnace that trips its high limit may have a bad switch, or it may be protecting itself from a clogged filter or a dying blower, and replacing the switch in the second case just removes a safety while leaving the fault.

Our experienced technicians treat every symptom as a question about the whole system. Flame signal gets measured rather than assumed, so a healthy sensor is never replaced while a cracked igniter or weak gas valve skates by. Draft is verified at the pressure switch and the flue. Temperature rise is checked against the data plate, which is how airflow problems get caught before they shorten the exchanger's life. And the gas side is leak-tested with instruments, not a sniff and a shrug. The result is a furnace that has been proven safe and correct under a full cycle, and an honest report if the unit is nearing the point where replacement beats another repair.

DIY vs. Professional Furnace Repair

Simple checks are fine to DIY, but most heating and cooling repairs need professional tools, training, and experience.

FactorDIY AttemptProfessional Service
Exchanger Cracks No way to see a crack from outside Examined as standard on each call
Ignition Problems New igniter installed on a hunch Every stage measured before replacing parts
Gas Connections A loose union goes unnoticed Instrument leak test on each visit
High-Limit Trips Limit replaced, cause left behind Root cause of overheating corrected
Blower Setup Airflow assumed, not measured Temperature rise set to the data plate
Final Check It lit once, call it fixed Clean, safe operation verified over full cycles
Clean furnace installation in a basement in Lehi
Prevention

How to Prevent Furnace Repair Problems

A few simple habits now, like regular filter changes and seasonal tune-ups, can add years to your system's life. Follow these tips from our experienced technicians:

  • If you have a high-efficiency furnace, check that the condensate drain is flowing freely
  • Give the furnace room to breathe, since a crowded utility space starves the burners of air
  • Store laundry supplies, especially chlorine products, well away from the furnace closet
  • Listen at light-off; clean ignition is quiet, and booming means the burners need service
  • Schedule service each fall to catch worn igniters and dirty sensors before cold weather arrives
  • Keep a working carbon monoxide alarm on every level of the home and check it each month
  • Change the filter monthly during heating season; it is the cheapest furnace part you will ever buy

Talk to a Furnace Repair Expert

The sooner you call, the sooner your comfort is back.

Call (385) 206-5812 Now

Furnace Repair Across the Lehi Area

Wherever you are in the area, the same experienced team handles your furnace repair. Find your community below.

Lehi Salt Lake City Ogden Provo St. George West Valley City Logan

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The Lehi HVAC Difference

The Lehi HVAC Promise

We've built our reputation in Lehi through honest work, fair pricing, and furnace repair results that last.

Rooted in Lehi

This is our home too. As a local, family-owned team, we answer the phone ourselves and show up when we say we will.

Fair, Transparent Pricing

Before we lift a finger, you'll know the full scope and the exact price, no fine print and no pressure to add on extras.

Code-Compliant Work

Cut corners on an HVAC install and you invite refrigerant leaks, carbon monoxide, and early failure. We do it by the book on every job, every time.

Repairs That Last

We don't just swap parts and leave. Every furnace repair job starts with why the system failed, restricted airflow, a weak capacitor, a clogged drain, so we fix the cause and the problem stays fixed.

★★★★★ Rated 4.8/5 by Lehi homeowners  ·  Upfront Pricing  ·  Fast Response  ·  All Brands Serviced

Schedule Your Furnace Repair Today

Don't wait for a small fault to take out the whole system. Call Lehi HVAC for fast, reliable service.

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