HVAC Repair in Jackson, TN
Homes here need heat from October through April and cooling from May through September. If your system quits, tell us what it's doing and a licensed contractor who covers Madison County will get in touch.
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Jackson runs its system almost all year
Heat from October through April, cooling from May through September. Only a few weeks in between when the system gets a break. That is 12 months of near constant work on the furnace and the air conditioner both.
Winter nights average 32°F, cold enough that the furnace cycles on and off most of the night to hold the house steady. Summer afternoons average 89°F, which keeps the air conditioner running long stretches to keep up. Madison County has also seen 14 winter storms and 45 damaging wind events over the past ten years, and storms like that knock out power. In Tennessee, one in five households lost power for at least 24 hours in 2024. A furnace or air conditioner that sits off during an outage and then gets hit with a hard restart is more likely to show a problem right after.
- 7 months
- October through April, your system heats
- 5 months
- May through September, it cools
- 32°F
- the average winter night it heats against
- 89°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
- Why is my heat not working?
- Start with the thermostat. Make sure it is set to heat and the temperature is set above the room temperature, and check that it has power if it uses batteries. If the thermostat looks right, check your breaker panel for a tripped breaker, since a furnace or heat pump that lost power will not respond to anything else. Gas furnaces will also shut down and lock out if the igniter fails or the flame sensor gets dirty, and that takes a contractor to fix. With winter nights here averaging 32°F, a furnace that will not start is worth getting looked at the same day.
- Why is my system running but not cooling the house?
- Check your air filter first. A filter clogged with dust blocks airflow across the coil, and when that happens the coil can ice over and stop cooling the air even though the blower is still running. Next check the thermostat is set to cool, not fan, and set below room temperature. If the filter is clean and the thermostat is right, the system may be low on refrigerant or have a failing part, and that calls for a contractor with gauges to find out. On a 89°F afternoon a system that only blows room-temperature air is not doing its job, and it will not fix itself by running longer.
- What can I check before calling for HVAC repair?
- Check the thermostat settings first, since a system set to the wrong mode or a dead thermostat battery looks exactly like a bigger failure. Then check your breaker panel for anything tripped. Look at the air filter and replace it if it is dirty, since restricted airflow causes both heating and cooling problems. If your outdoor unit was affected by a recent storm, check that nothing is blocking it and that it has power. Jackson has seen 45 damaging wind events over the past ten years, and a tripped breaker or blown fuse from a power blip is an easy thing to rule out before assuming the worst.