Furnace Repair in South Bend, IN
Furnaces here run from October through May. If yours quits, tell us what it's doing and a licensed contractor who covers St. Joseph County will get in touch.
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South Bend furnaces work eight months a year
From October through May, your furnace is what keeps the house livable, and on the coldest nights it's holding against lows that average 20°F. That's a long season of the burner lighting, running, and shutting off, night after night. Each cycle puts wear on the igniter and the flame sensor, the parts that get tested every time the furnace starts.
Most homes here heat with gas, so when the furnace stops, there's no backup quietly running in the background. The area has also logged 12 winter storms and 159 damaging wind events over the past ten years, and statewide, 17% of households lost power for at least 24 hours in 2024. A furnace needs electricity to run its blower and controls even when the fuel is gas, so when the power drops in the middle of a cold snap, it won't come back on until that power does.
- 8 months
- October through May, your furnace is on duty
- 20°F
- the average winter night it heats against
- 81%
- of homes here heat with gas, so most furnaces here burn gas
- 12 winter storms
- in ten years, the nights a failure hurts most
NOAA nClimDiv, 1991–2020 normals
A new furnace would cut about $120 a year off heating for a typical St. Joseph County home.
Estimates for a typical St. Joseph County home, compared with an older unit built to the previous federal minimum, from EIA household energy data, Indiana fuel prices and NOAA climate normals. Your home will differ.
Repair makes sense when one part has failed and the heat exchanger is sound.
Replacement makes sense when the heat exchanger is cracked or the furnace keeps needing parts.
In Indiana, HVAC licensing for homes is left to the counties and cities.
St. Joseph County is one of the places in Indiana that sets its own rule, so whether a contractor needs a local license here depends on what the county or city requires, not on anything the state tracks. There's no state record of who's tested or registered to do this work. What exists instead is whatever St. Joseph County itself has set up.
For a furnace repair, the part that matters most is the gas connection, since that's where a mistake turns dangerous. Whether that gets checked here comes down to whatever inspection process St. Joseph County has in place for this kind of work, not a state license, because Indiana doesn't issue one. Most homes in this county heat with gas, so this is the repair local rules exist to cover.
Sources: Indiana Department of Workforce Development · State of Indiana
- Why won't my furnace turn on?
- Start with the thermostat. Check that it's set to heat and the temperature is set above room temperature, and if it runs on batteries, swap them. If the thermostat looks fine, check your breaker panel and the furnace's own power switch, which looks like a light switch near the unit. If power and settings check out, the igniter or flame sensor may have failed, and that needs a contractor to check.
- Why is my furnace blowing cold air?
- Most often the blower is running before the burners have caught up, which is normal for the first minute or so after a cycle starts. If cold air keeps coming during the whole cycle, the igniter or flame sensor may be failing, so the burners never light while the fan keeps moving air. A clogged filter can also starve the burners of the airflow they need to stay running. If the thermostat fan setting is on instead of auto, the blower will run constantly and pull in room air even when the furnace isn't heating.
- Why won't my furnace pilot light stay lit?
- This usually means the thermocouple has worn out and can no longer hold the gas valve open once you let go. A draft blowing across the pilot, or a dirty pilot orifice, can also snuff it out. Homes here run the furnace from October through May, so a pilot that won't hold is worth fixing rather than relighting it every few hours. A contractor can test the thermocouple and replace it, since it isn't a part to force back into place.