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 Delano, MN
Furnace repair in Delano starts with a $79 trip charge, waived once you approve it, including rusty flue parts in Bridge Avenue basements. Damp basements near Bridge Avenue rust flue connectors and burner trays, so those get a close look.
Furnace repair calls in Delano homes
Furnace trouble in Delano tends to follow three kinds of house. The late-1800s homes near Bridge Avenue and the river usually have a furnace that replaced a boiler or gravity system long ago, often venting into a brick chimney it shares with the water heater. Those basements run damp, and the moisture shows up as rust on the flue connector, the burner tray and the bottom of the cabinet.
The 1950s–70s ramblers mostly carry 80% furnaces, where a worn inducer motor or a cracked igniter is the usual failure. In the 1990s and 2000s subdivisions, the first high-efficiency furnaces are reaching the age of plugged condensate traps, split pressure-switch hoses and control boards that quit after a power surge. We watch the startup sequence, find the step where it stops, and test that part before quoting anything.
Updated November 10, 2026
What do common furnace repairs cost in Delano?
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: Pressure switch trips · Strange noises · Leaking water · Burning smell · Signs your furnace needs a technician
Furnace repair in Delano: questions
The vent pipe above our Delano furnace is rusty. Should we worry?
Enough to have it looked at. Riverside basements in Delano stay damp, and galvanized vent pipe rusts from the outside while flue-gas condensation works on it from the inside. Once a joint or elbow thins out, exhaust can leak into the basement instead of going up the chimney. The connector, the chimney base and the draft are worth checking on any furnace or water-heater service here, and replacing a run of vent pipe is a small job next to anything on the furnace.
The furnace in our 2000s Delano house shuts off on the coldest mornings. What's going on?
On a high-efficiency furnace, the usual suspect is the PVC venting. In deep cold, frost can build at the intake or exhaust termination, or a drift can cover it, and the pressure switch shuts the burners off. A frozen condensate line does the same. Check that both pipes outside are clear, clearing them gently by hand. If it keeps happening, we look at pipe length, slope and termination height, and at rerouting the drain.
More in Delano
- Furnace replacement in Delano
- AC repair in Delano
- AC replacement in Delano
- Heat pumps in Delano
- Mini-splits in Delano
- Boiler service in Delano
- Tune-ups in Delano
- All HVAC service in Delano
Furnace repair near Delano
- Independence, MN furnace repair · 4 mi
- Rockford, MN furnace repair · 4 mi
- Watertown, MN furnace repair · 6 mi
- Montrose, MN furnace repair · 6 mi
- Maple Plain, MN furnace repair · 7 mi
- Loretto, MN furnace repair · 8 mi
Brands we repair
Guides on furnace repair
How Old Is My Furnace or AC? Find the Date on the Data Plate
Find your furnace or AC's age on the data plate, then the install sticker or permit record. Serial decoder charts disagree by brand. Call 612-429-3465.
Read the guideWhat Size Furnace Do I Need for a Minnesota House?
Furnace size comes from a Manual J heat loss at a -15°F design day, not square feet. Input vs output BTU, AFUE, why old furnaces run big and what to ask for.
Read the guideContact Us
Heat out? AC quit? Call or send a request.