What 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.
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Furnace Repair in Prior Lake, MN
Around Prior Lake, a furnace repair visit costs a $79 trip charge that's waived when you approve the repair, and the written flat-rate price comes first. We're open 7 days, 7am–9pm. Lake homes with walkout levels often run two furnaces, so one floor can go cold while the other feels fine.
Furnace repair calls in Prior Lake homes
Prior Lake's furnace calls come from two very different kinds of houses. Lake homes on Upper and Lower Prior Lake often split the heat between a main-floor system and a walkout-level one, and a failure on either shows up as one level going cold. Vaulted great rooms with big glass pull heat up and away from the thermostat, so the furnace runs long, strains its blower and trips its limit once the filter loads up. Older cabins rebuilt in stages sometimes hide a furnace in a closet that's hard to service.
Away from the shore, the subdivisions built from the 1980s through the late 2000s have furnaces on their first or second replacement. Their common failures are igniters, flame sensors, inducers and control boards, plus condensate traps and drains on condensing models. Wind across the open lake drifts snow over side-wall vents on exposed shoreline lots. CenterPoint Energy supplies the gas.
Updated September 23, 2026
How much does furnace repair cost in Prior Lake?
Every furnace repair call in Prior Lake starts with a $79 trip charge, waived when you approve the repair, and a written price before any work. Same prices in Prior Lake as in every town we serve. National averages (HomeGuide, 2026), not our prices: a limit switch $100–$375, a control board $300–$650, an inducer motor $400–$1,100. 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 Prior Lake: questions
Only the walkout level of our Prior Lake house is cold. Is one furnace out?
If the house has two systems, likely yes, and the walkout unit is the one to check. If it has one furnace, the walkout zone's damper or thermostat may have failed, or a supply duct to that level may have come loose. Check the thermostat display and the furnace filter first. We test the furnace, damper motors and controls and give you a written price for the fix.
How do we protect our Prior Lake lake home's furnace while we're away in winter?
Keep the heat on at a moderate setting and add a Wi-Fi thermostat or temperature sensor that alerts you if the house cools, so a failed igniter doesn't become frozen pipes. Before leaving, change the filter and clear snow from any side-wall vents, and ask a neighbor to check them after big storms. A fall tune-up, from $129, catches worn ignition parts before the season.
More in Prior Lake
- Furnace replacement in Prior Lake
- AC repair in Prior Lake
- AC replacement in Prior Lake
- All HVAC service in Prior Lake
Furnace repair near Prior Lake
- Savage, MN 6 mi
- Shakopee, MN 8 mi
- Burnsville, MN 8 mi
- Lakeville, MN 10 mi
- Eden Prairie, MN 10 mi
- Apple Valley, MN 10 mi
Brands we repair
Guides on furnace repair
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How long a furnace lasts in Minnesota: sourced 15–20 year figures, why long winters add wear, signs it's near the end, and how to decide repair or replace.
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Read the guideContact Us
Furnace repair in Prior Lake? Call or send a request.