When your furnace starts blowing cold air or your carbon monoxide detector goes off, you need furnace heat exchanger repair Ashland OH fast. We diagnose cracked heat exchangers, pressure switch faults, and ignition failures across Ashland County with same-day service. Our licensed techs carry the tools to test combustion, verify airflow, and tell you honestly whether a repair or a full heat exchanger replacement in Ashland is the smarter call for your home.
Furnace heat exchanger repair Ashland OH is the diagnostic and mechanical work that finds, tests, and fixes a failing heat exchanger inside your gas furnace. The heat exchanger is the metal core that separates combustion gases from the air your family breathes. When it cracks, warps, or rusts through, you get carbon monoxide leaking into the supply air, short cycling, and a furnace that runs but never heats the house. We pull the blower assembly, inspect the core with an inspection camera, and pressure-test the seams before we quote anything.
Most Ashland homeowners call us after a furnace heat exchanger leak Ashland shows up as a yellow flame, soot streaks, or a CO alarm at 2 a.m. Older homes near Downtown Ashland and the Historic Ashland district often run 20-year-old Carrier and Trane units with original heat exchangers that have finally rusted through. We also handle cracked heat exchanger repair Ashland Ohio for landlords and property managers who need documentation for insurance. If you are searching for heat exchanger repair near me Ashland, we cover the whole county with 24/7 dispatch.
Every heat exchanger job starts with a full combustion diagnosis and ends with documented test results. Here is what is covered in a standard repair visit, and what we quote separately if your furnace needs it.
We test CO in the supply plenum and at the registers with a combustion analyzer. You get printed readings before and after the repair, which matters for insurance and for your own peace of mind.
An inspection camera goes into the core to find cracks, rust, and warping the naked eye misses. We show you the footage so you can see exactly what we are quoting.
Any time we open the combustion chamber we replace the gaskets and seals. Reusing old gaskets is how CO leaks start, so we do not cut that corner on any heat exchanger job.
We test the limit switch, pressure switch, and flame sensor with a multimeter and manometer. A heat exchanger repair is only as good as the safeties around it, so we verify all of them.
After the repair we re-run the analyzer and cycle the furnace three times. If CO is still present or draft is weak, we keep working until the numbers are clean.
You call +14195820227 and describe the symptoms: cold air, soot, CO alarm, or a flame that rolls out. We ask whether the furnace is running now and tell you to shut the gas valve if you smell gas. Dispatch goes out same-day for safety calls.
A NATE-certified tech pulls the burner assembly, uses an inspection camera on the heat exchanger core, and checks the flame sensor, igniter, and pressure switch. We run a manometer on the inducer and a multimeter on the limit switch. This takes 45 to 60 minutes.
We place a combustion analyzer in the supply plenum and test for carbon monoxide at the registers. A cracked heat exchanger in Downtown Ashland OH often reads 20 to 50 ppm before the furnace shuts down on limit. You see the readings before we recommend anything.
If the crack is small and accessible, we seal or weld it and replace the gaskets. If the core is warped or rusted through, we quote heat exchanger replacement in Ashland Ohio with parts pricing and labor broken out. You decide, we do not pressure.
After the fix we re-run the combustion analyzer, check static pressure, and cycle the furnace three times. You get a written report with CO readings, parts used, and warranty terms. We also tag the gas valve shutoff so future techs know the work history.
Purpose-built equipment, used by trained technicians — so the job is done accurately the first time.
Measures carbon monoxide, oxygen, and flue temperature in the supply plenum. It is how we prove a heat exchanger is leaking and how we verify the repair worked.
Slides into the heat exchanger core to find cracks, rust, and warping that are invisible from the outside. We show you the footage before quoting.
Tests inducer draft and static pressure. Weak draft lets combustion gases linger in the heat exchanger, which accelerates cracking.
Tests the limit switch, pressure switch, gas valve, and blower motor draw. Electrical faults often mimic heat exchanger symptoms.
Verifies ignition components are working before we blame the heat exchanger. A dirty flame sensor causes short cycling that stresses the core.
Cleans soot off burners and the heat exchanger surface, and checks gas pressure at the valve. Soot is a leading cause of overheating and cracking.
A homeowner in Downtown Ashland had a 1998 Carrier furnace that ran constantly but never heated past 62°F. The CO detector had chirped twice that month. A previous company replaced the flame sensor and called it fixed.
We camera-inspected the core and found a three-inch crack along a seam. We replaced the heat exchanger, swapped the gaskets, and re-tested combustion to 4 ppm CO in the supply. The house held 70°F on the next cold night.
A Willow Creek homeowner's furnace was short cycling every four minutes on the limit switch. Two techs had replaced the limit switch and the pressure switch with no change. The house was cold and the gas bill had doubled.
We tested static pressure and found a clogged filter plus a weak blower motor capacitor. The heat exchanger had minor surface rust but no cracks. After replacing the capacitor and filter, the furnace ran full cycles and the bill dropped 22% the next month.
A family in South Ashland called at 3 a.m. after their CO alarm sounded. The furnace was still running. They had no idea the heat exchanger was the source and had been sleeping with a CO level near 35 ppm in the bedroom.
We shut the gas valve, ventilated the home, and confirmed a two-inch crack with the combustion analyzer. A replacement core went in that morning. Post-repair testing read 0 ppm CO in the supply air and the family was back to heat by lunch.
Most heat exchanger failures show up as one of these symptoms. If you recognize yours, call us before the furnace runs another cycle.
Ask a pro →We shut the furnace down, test supply air for CO, and camera-inspect the core. If the crack is small we seal it; if the core is warped we quote heat exchanger replacement in Ashland Ohio with parts and labor broken out.
We test static pressure, airflow, and the limit switch, then inspect the core for heat damage. Often a clogged filter or weak blower motor is the root cause, and fixing airflow stops the cycling.
We clean the burners, set gas pressure with a manometer, and inspect the core for cracks. If the exchanger is compromised, we replace it and re-test combustion before we leave.
Call +14195820227 immediately and shut the gas valve off. We dispatch 24/7, test the home and the supply air, and either repair or replace the heat exchanger the same day.
“Our CO alarm went off on a Sunday night and we called these guys. The tech showed up in about an hour, tested the supply air, and found a cracked heat exchanger in our 18-year-old Carrier. He shut it down, showed us the camera footage, and had a replacement core in by Tuesday. Fair price, no drama.”
Dana R.Homeowner, Downtown Ashland
✓ Verified“I manage four rentals near Ashland University and needed heat exchanger documentation for my insurance. They inspected all four furnaces, replaced one cracked core, and gave me written CO readings for each unit. Straightforward pricing and they actually called me back when they said they would.”
Marcus T.Landlord, South Ashland
✓ Verified“Our furnace was short cycling all winter and two other companies just replaced parts. These techs ran a combustion test, found the heat exchanger was warped, and explained why the limit switch kept tripping. They replaced the core in one day and our gas bill dropped the next month.”
Karen L.Homeowner, Willow Creek
✓ VerifiedMost heat exchanger repairs in Ashland run $450 to $1,200 in 2026, including parts and labor. Full heat exchanger replacement in Ashland Ohio typically costs $1,800 to $3,500 installed, depending on furnace brand and access. A diagnostic visit with combustion testing runs $89 to $149, and we waive it when you approve the repair.
Yes. A cracked heat exchanger can leak carbon monoxide into your supply air, and CO is odorless and deadly. In Ashland County we see cracks most often in furnaces over 15 years old. If your CO alarm sounds, shut the furnace off at the gas valve, open windows, and call us at +14195820227 for same-day testing.
Repair makes sense when the crack is small, accessible, and the furnace is under 12 years old with no other failures. Replace when the core is warped, rusted through, or the unit is past 15 years and facing a second major repair. We give you both numbers and let you decide.
A heat exchanger replacement in Ashland Ohio takes four to six hours for most residential furnaces. We pull the blower, inducer motor, and burner assembly, swap the core, replace gaskets, and re-test combustion. If we need to order a brand-specific core, add one to two business days for delivery.
Emergency Furnace RepairWhen your heat exchanger fails at 2 a.m. in January, our emergency crew rolls with CO detectors and combustion analyzers. We make the furnace safe first, then quote the heat exchanger work. Same number, same dispatch.Explore →
24/7 Furnace RepairHeat exchanger problems do not keep business hours. Our 24/7 line stays open for Ashland County, so a cracked core or gas smell gets a tech dispatched any hour. We carry gasket kits and common cores on night trucks.Explore →
Same-Day Furnace RepairMost heat exchanger diagnostics in Ashland finish same-day because we stock thermocouples, flame sensors, and pressure switches on every truck. If your furnace is short cycling on limit, we can often confirm the cause and repair it in one visit.Explore →
Furnace Not Heating RepairA furnace that runs but never heats is a classic cracked heat exchanger or failed limit switch symptom. We test both, plus the gas valve and igniter, before recommending anything. You get the real cause, not a guess.Explore →
Furnace Blowing Cold Air RepairCold air from the registers often traces back to a heat exchanger that has warped or a blower motor that has failed. We check airflow, static pressure, and combustion before we touch the core. One visit, clear answer.Explore →
Furnace Ignition RepairIgnition failure and heat exchanger cracks often show up together, because a dirty flame sensor or weak igniter lets unburned gas pool and stress the core. We test both systems and replace what actually failed.Explore →
Furnace Pilot Light RepairA pilot light that will not stay lit points to a bad thermocouple or a draft problem that also affects the heat exchanger. We test the thermocouple with a tester and verify inducer draft in the same call.Explore →
Furnace Thermocouple ReplacementA failing thermocouple shuts the gas valve and can mask a heat exchanger issue. We replace it, then run a combustion test to confirm the core is sound. Most thermocouple swaps take under an hour.Explore →If your furnace is blowing cold air, short cycling, or your CO alarm has sounded, do not wait. We are licensed, insured, and dispatch 24/7 across Ashland County. Call +14195820227 and we will get a tech to your door today.
Book Same-Day Service +14195820227 →Call +14195820227 any time, day or night, and a live dispatcher will take your address and symptoms. We serve Ashland and Ashland County with same-day and emergency service. You can also email info@ashlandfurnacerepairpros.com and we will reply within one business hour.