Furnace Repair in Troy, MO
Furnaces here run from October through April. If yours quits, tell us what it's doing and a licensed contractor who covers Lincoln County will get in touch.
Tell us about the job
It takes about a minute.
Seven months of heat, and cold nights to push it
Furnaces in Troy run from October through April. That is seven months of the year the burner is cycling on and off to keep up, and on a night that drops to 23°F it is lighting far more often than it does in fall or spring. Every one of those starts puts wear on the igniter and the flame sensor, and those are the parts most likely to fail first. You will notice it as a furnace that takes a couple of tries to light, or one that lights and then shuts itself off.
Lincoln County has had 8 winter storms and 36 damaging wind events over the past ten years, and storms like that knock out power. Most furnaces will not run at all without electricity, even if the gas line is fine, and 19% of Missouri households went at least 24 hours without power in 2024. If the power drops on a cold night, the furnace stops with it.
- 7 months
- October through April, your furnace is on duty
- 23°F
- the average winter night it heats against
- 8 winter storms
- in ten years, the nights a failure hurts most
NOAA nClimDiv, 1991–2020 normals
- Why won't my furnace turn on?
- Most often the thermostat isn't calling for heat correctly, or power isn't reaching the furnace. Check that the thermostat is set below room temperature and has working batteries if it uses them. Check the furnace switch, which looks like a light switch near the unit, and the breaker at your panel. If those are fine, the igniter or flame sensor may have failed, and a contractor will need to test them.
- Why is my furnace blowing cold air?
- If air is blowing but not warming up, the furnace may be running the blower without the burners lighting. That points to an ignition problem, a dirty flame sensor, or a gas supply issue. It can also mean the furnace is in the middle of its startup cycle, when a few minutes of cool air is normal before the heat exchanger warms up. If cold air keeps coming after several minutes, the furnace needs a contractor to look at it.
- Why won't my furnace pilot light stay lit?
- A pilot light that won't stay on is usually a sign the thermocouple has worn out or is out of position. The thermocouple is the small rod that sits in the pilot flame and tells the gas valve it's safe to stay open. Drafts near the pilot or a dirty pilot orifice can also cause it. This is a gas component, so have a contractor relight and inspect it rather than repeatedly relighting it yourself.