Cracked Heat Exchanger: Symptoms, How It's Confirmed and What to Ask For
Signs of a cracked furnace heat exchanger, how a technician confirms one, what to ask for if your furnace is red-tagged, and when to repair or replace it.
Read the guide
Furnace Repair in Chanhassen, MN
Much of Chanhassen was built in the 1990s and 2000s, so plenty of its furnaces are original high-efficiency units now 20-plus years old. We fix them any day, 7am–9pm, with a $79 trip charge that's waived when you approve the repair and a written price before any work.
Furnace repair calls in Chanhassen homes
Most Chanhassen homes went up in the 1990s and 2000s, and plenty still run the furnace the builder put in. At that age the repairs are the high-efficiency kind: a condensate trap that clogs and trips the pressure switch, an inducer motor that starts to rattle, a flame sensor that needs cleaning, a control board that loses a relay. Two-stories with a finished lower level also produce calls about a furnace that can't keep up, which often turn out to be the bonus room over the garage rather than the furnace.
In the newest neighborhoods near Highway 212, furnaces are tied to air exchangers and sometimes zoning panels, so a fault can live in the controls rather than the burner. Walkout lower levels near Lotus Lake and Lake Minnewashta usually put the furnace in an unfinished corner with good access. Keep the PVC terminations outside clear of drifting snow, since a blocked intake is an easy lockout to prevent.
Updated September 23, 2026
How much does furnace repair cost in Chanhassen?
Every furnace repair call in Chanhassen starts with a $79 trip charge, waived when you approve the repair, and a written price before any work. Same prices in Chanhassen as in every town we serve. National averages (HomeGuide, 2026), not our prices: a flame sensor $80–$250, a pressure switch $150–$400, a limit switch $100–$375. More in the furnace repair cost guide.
Signs your furnace needs a technician
- The inducer starts, the igniter glows, then the burners never light
- The burners light for a few seconds and shut off, over and over
- The furnace runs but the vents blow cool air
- A blinking code on the control board, or the furnace has locked out
- Your CO alarm went off or the burner flames look lazy and yellow
- New banging, squealing or grinding when the furnace starts
- Water pooling around a high-efficiency furnace
More detail on our furnace repair page.
Symptom guides: Blowing cold air · Won't ignite · Short cycling · Blinking light codes · Pressure switch trips · Strange noises · Leaking water · Burning smell · Red tag · Carbon monoxide
Furnace repair in Chanhassen: questions
Our Chanhassen house has a zoned system and one zone stopped heating. Is the furnace bad?
Probably not, if the other zones still heat. A dead zone usually means a damper motor that failed closed, a thermostat that lost power, or a fault at the zone control panel. We check the panel's indicator lights and test each damper before looking at the furnace. If the furnace short-cycles when only one small zone calls, the bypass or the furnace's staging may need adjusting too.
Water is pooling under the furnace in our 2000s Chanhassen home. What causes that?
A high-efficiency furnace makes water, which drains through a trap and tubing to a floor drain or condensate pump. After 15 or 20 years the trap clogs, a hose cracks or the pump's float sticks, and water backs up. Often the pressure switch trips at the same time and the furnace quits. It's usually a modest repair, but shut the furnace off if water is reaching the burner compartment or the control board.
More in Chanhassen
- Furnace replacement in Chanhassen
- AC repair in Chanhassen
- AC replacement in Chanhassen
- All HVAC service in Chanhassen
Furnace repair near Chanhassen
- Eden Prairie, MN 3 mi
- Excelsior, MN 3 mi
- Minnetonka, MN 4 mi
- Shorewood, MN 4 mi
- Deephaven, MN 4 mi
- Shakopee, MN 4 mi
Brands we repair
Guides on furnace repair
Boiler vs Furnace: Which Fits Your Saint Paul Home?
Keep the boiler or switch to a furnace? How Saint Paul radiator homes and postwar houses decide, what each costs to replace, and how to add AC without ducts.
Read the guideWhat Does the Blinking Light on My Furnace Mean?
The blinking light on a furnace is a fault code from the control board. How to read it safely, what common codes mean, and when a reset is fine or not.
Read the guideContact Us
Furnace repair in Chanhassen? Call or send a request.