Furnace Repair in Custer, SD
Furnaces here run from September through May. If yours quits, tell us what it's doing and a licensed contractor who covers Custer County will get in touch.
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Nine months of heat wears on a furnace here
Custer County needs a working furnace from September through May. That is nine months of the year the burner is lighting, running, and shutting off, night after night, to keep the house warm against lows that average 15°F through the winter.
All that cycling wears on the parts that start the burner and keep it running. An igniter or flame sensor that has fired thousands of times can fail without warning, and when it does, the furnace won't light at all. The county has logged 125 winter storms over the past ten years, and a furnace that is struggling tends to show it on the coldest nights, not the mild ones. If yours is short cycling, blowing cool air, or not turning on, that is what this many months of hard running does to it.
- 9 months
- September through May, your furnace is on duty
- 15°F
- the average winter night it heats against
- 125 winter storms
- in ten years, the nights a failure hurts most
NOAA nClimDiv, 1991–2020 normals
In South Dakota, HVAC licensing for homes is left to the cities and towns.
South Dakota has no state license for HVAC contractors. Whether a furnace repair in Custer County needs a local license depends on the town, since that decision is left to each city or town rather than the state. There is no statewide record of these contractors to check either way.
For a furnace repair, the gas connection is the part that matters most, since a bad seal or a cracked heat exchanger is what makes the job dangerous. Where a town has its own licensing rule, that is what stands behind the work. Outside a town with that rule, there is no state record or license standing behind it.
Source: South Dakota Legislature
- Why won't my furnace turn on?
- Most often the thermostat isn't calling for heat the way you think it is, or a safety switch has shut the furnace down. Check that the thermostat is set below room temperature and has power, since a dead battery there will stop everything before the furnace even sees a signal. A dirty filter or a closed vent can trip a limit switch too, which shuts the furnace off to protect it. If the breaker is fine and the thermostat is calling for heat, the furnace needs a contractor to find which safety switch is stopping it.
- Why is my furnace blowing cold air?
- If air is moving but it's not warm, the furnace is likely running its fan without the burners lighting. That points to an ignition problem, a dirty flame sensor, or a gas supply that isn't reaching the burners. It can also mean the thermostat fan setting is on "on" instead of "auto", which pushes air through the ducts even between heating cycles. With nights here averaging 15°F in the winter, a furnace stuck like this needs attention fast, and a contractor can tell which of these it is.
- Why won't my furnace pilot light stay lit?
- A pilot light that won't stay lit usually means the thermocouple has worn out and can no longer sense the flame, so the gas valve shuts it off as a safety measure. It can also mean a draft is blowing the flame out, or the pilot orifice is partly clogged. Relighting it yourself may work for a night, but if it goes out again the part behind it needs to be checked. Homes here need heat nine months of the year, so a pilot that keeps failing is worth getting looked at rather than relighting on repeat.