Furnace Repair in Sevierville, TN
Furnaces here run from October through April. If yours quits, tell us what it's doing and a licensed contractor who covers Sevier County will get in touch.
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Seven months of heat, and a grid that doesn't always hold
Your furnace works from October through April here, seven months of the year. On nights that average 30°F all winter, it is cycling on and off for hours at a stretch, and every cycle puts a load on the igniter and the blower motor. Those are the parts most likely to fail after a long winter of steady use.
Most homes in Sevier County heat with electricity, so when the power goes out, the furnace stops with it. Tennessee saw 20% of households lose power for a day or more in 2024, and this area has logged 68 winter storms and 157 damaging wind events over the past ten years. When the power comes back, a furnace that was already worn can fail to restart, or run but not heat the way it should.
- 7 months
- October through April, your furnace is on duty
- 30°F
- the average winter night it heats against
- 68 winter storms
- in ten years, the nights a failure hurts most
NOAA nClimDiv, 1991–2020 normals
- Why won't my furnace turn on?
- The most common reason is the thermostat isn't calling for heat, whether that's dead batteries, a tripped breaker, or a setting that's off. Check the thermostat first, then the breaker panel and the furnace's own power switch, which looks like a light switch near the unit. If those are fine, the furnace may be stopping itself because a safety switch detected a problem, and that calls for a contractor to find out which one and why. With winter nights here averaging 30°F, it's worth having someone look at it the same day rather than waiting.
- Why is my furnace blowing cold air?
- If air is blowing but it's not warm, the furnace may be running the blower without the burners lighting, or it could be in a normal startup delay before warm air reaches the vents. A dirty filter can also cause this by cutting off airflow enough to trip a safety limit that shuts the burners off while the blower keeps running. Check the filter first. If it's clean and the air stays cold, the igniter or a gas valve problem is likely, and a contractor will need to check it.
- Why won't my furnace pilot light stay lit?
- This usually means the thermocouple has worn out and can no longer sense the flame, so the gas valve shuts off as a safety measure. A draft blowing out the pilot or a dirty pilot orifice can also cause it. This is a gas component, so it should be diagnosed and fixed by a contractor rather than relit repeatedly.