Carrier Furnace Error Codes: What the Blinking Light Means
Carrier furnace error codes from the maker's own troubleshooting guides: how to count the flashes safely, what each code means, and when to call a tech.
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Furnace Repair in Carver, MN
Furnace repair in Carver starts with a $79 trip charge, waived when you approve it, from the historic district to hillside homes. Homes up the hill have high-efficiency furnaces nearing their first repairs, while the historic district's converted systems often vent into old chimneys.
Furnace repair calls in Carver homes
Carver's furnaces come in two very different generations. Up the hill, the homes built since 2000 have high-efficiency furnaces now old enough for their first real repairs: igniters, flame sensors, inducer motors, and condensate traps that clog and trip the pressure switch. Many of those houses run an air exchanger too, and a plugged HRV core or a filter nobody has changed can make the furnace look like the problem.
Down in the historic district, the heating has usually been converted more than once, sometimes from gravity air to forced air, and the furnace may sit in a small stone-walled basement with a low ceiling and a flue into an old chimney. There a draft and chimney-connection check belongs on any furnace or water-heater service, because a partly blocked or crumbling flue affects the furnace and the water heater alike. Damp basements on the low ground near the river and Carver Creek also rust burners and controls faster than a dry one would.
Updated November 10, 2026
What do common furnace repairs cost in Carver?
National averages (HomeGuide, 2026), not our prices: an igniter $100–$250, a flame sensor $80–$250, a pressure switch $150–$400. More in the furnace repair cost guide.
Symptom guides: Blowing cold air · Won't ignite · Short cycling · Blinking light codes · Signs your furnace needs a technician
Furnace repair in Carver: questions
The furnace in our historic Carver house vents into an old chimney. Should we worry?
It deserves a look every fall. Old masonry chimneys lose mortar, collect debris at the base and can draft poorly once the house has been tightened up. A furnace that spills flue gas at startup, or a water heater with rust and soot around its vent, points to trouble. Ask for a draft check during any repair on a chimney-vented furnace. Minnesota law requires working CO alarms within 10 feet of each sleeping room.
Our newer Carver home's furnace shuts off and flashes a code. What's common at this age?
On a high-efficiency furnace 15 to 25 years old, a pressure-switch code is one of the most frequent. The usual causes are a clogged condensate trap or drain, a sagging PVC vent holding water, or a tired inducer motor. A dirty flame sensor causes the other common lockout. Write down the blink pattern before you reset it, because that code tells us where to start.
More in Carver
- Furnace replacement in Carver
- AC repair in Carver
- AC replacement in Carver
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- Mini-splits in Carver
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Furnace repair near Carver
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