Furnace Short Cycling: Time the Cycle, Then Find the Cause
A furnace that turns on and off too often tells you what's wrong by how long it runs. How to time a cycle, and what seconds, minutes and frequent cycles mean.
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Furnace Repair in Hudson, WI
We're licensed in Wisconsin and repair Hudson furnaces on the same terms as the Minnesota side: a $79 trip charge waived when you approve the repair, and a written price first. Hours are 7am–9pm, 7 days a week. Most calls here involve post-2000 sealed-combustion furnaces venting through PVC.
Furnace repair calls in Hudson homes
Most Hudson furnaces we see were installed as the city grew after 2000, and the oldest of those builder units are now past twenty years. They're sealed-combustion furnaces that pull outside air through one PVC pipe and exhaust through another, so many calls come down to that system: a condensate trap clogged with sludge, a drain line that freezes where it crosses a cold garage wall, or a pressure switch that won't close because the intake or exhaust is iced over. Inducer motors and igniters wear out on schedule too.
The older blocks near downtown and the riverfront are a different job. Houses from the lumber and railroad years bring tight basements, converted gravity ductwork and older 80% furnaces on brick chimneys. In the tight newer homes, an air exchanger that's iced up or out of balance can make rooms feel drafty and cold even though the furnace itself is fine.
Updated September 23, 2026
How much does furnace repair cost in Hudson?
Every furnace repair call in Hudson starts with a $79 trip charge, waived when you approve the repair, and a written price before any work. Same prices in Hudson as in every town we serve. National averages (HomeGuide, 2026), not our prices: a PSC blower motor $500–$1,400, a variable-speed (ECM) blower motor $800–$2,300, an igniter $100–$250. 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 Hudson: questions
Could the humidifier on our Hudson furnace be causing problems?
It can. A furnace-mounted humidifier with a stuck water valve or clogged drain can drip onto the furnace cabinet, the inducer or even the control board, and that water causes rust and odd shutdowns. Check for mineral crust and water stains around it. Also watch the setting: in cold weather, indoor humidity belongs around 25–35% and lower in deep cold, or the tight post-2000 houses here frost their windows.
A condensate line keeps freezing on our Hudson furnace. What's the fix?
Move it or protect it. Builders sometimes ran the drain through a garage wall or an unheated space, and on a sub-zero night the water in it freezes, backs up into the trap and shuts the furnace off through its pressure switch. We reroute the line inside the heated part of the house where we can, or add a heat cable where the manufacturer allows it. Thawing it gets you running; rerouting keeps you running.
More in Hudson
Furnace repair near Hudson
- Bayport, MN 3 mi
- Oak Park Heights, MN 5 mi
- Stillwater, MN 6 mi
- Lake Elmo, MN 8 mi
- Oakdale, MN 10 mi
- River Falls, WI 10 mi
Brands we repair
Guides on furnace repair
Furnace Burning Smell in a Minneapolis Home: What Each Smell Means
Dust, hot plastic, rotten eggs or exhaust: what each furnace smell means, which mean shut it off now, and the basement causes we find in Minneapolis homes.
Read the guideFurnace Won't Ignite: Find Where the Startup Stops
Furnace clicking but not lighting? Follow the startup sequence a technician uses: thermostat, power, inducer, pressure switch, igniter, gas and flame sensor.
Read the guideContact Us
Furnace repair in Hudson? Call or send a request.