HVAC Repair in Franklin, 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 Williamson County will get in touch.
Tell us about the job
It takes about a minute.
Franklin runs its system almost year round
Heat runs October through April here, and the air conditioner takes over for the five months after that. There is almost no season where the system just sits idle. That means the parts wear on both ends, the burner and igniter through winter, the compressor and coil through summer.
Winter nights average 30°F, cold enough that the furnace cycles on and off most of the night to hold the temperature. Summer afternoons average 88°F, and the air conditioner runs long stretches to keep up. Williamson County has also seen 205 damaging wind events and 10 winter storms over the past ten years, and storms like that knock out power. Statewide, one in five households lost power for a full day or more in 2024. When the power drops and comes back, most systems restart on their own, but whatever was already strained before the outage is still strained after it.
- 7 months
- October through April, your system heats
- 5 months
- May through September, it cools
- 30°F
- the average winter night it heats against
- 88°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
A new furnace and air conditioner would cut about $130 a year off heating and cooling for a typical Williamson County home.
Estimates for a typical Williamson County home, compared with an older unit built to the previous federal minimum, from EIA household energy data, Tennessee fuel prices and NOAA climate normals. Your home will differ.
Repair makes sense when one part has failed.
Replacement makes sense when the furnace's heat exchanger is cracked, the air conditioner's compressor has failed, or repairs keep coming.
- Why is my heat not working?
- Start with the thermostat and the power to the furnace. If the thermostat screen is blank, check the breaker and any switch that looks like a light switch near the furnace, since that shuts it off too. Gas furnaces need a lit igniter to fire, and if it clicks a few times without lighting, the igniter or the flame sensor is likely the problem. If the furnace runs but the air feels cool, check the air filter, since a clogged one can cause the system to shut down before the house warms up.
- Why is my system running but not cooling the house?
- The air filter is the first thing to check, since a dirty one restricts airflow enough that the house never catches up on a hot afternoon. Next, look at the outdoor unit and clear away any grass clippings, leaves, or mulch stacked against it, since it needs open airflow to move heat outside. If the vents are blowing air that feels warm or barely moving, the system may be low on refrigerant or the coil inside may be frozen over, and both need a contractor to look at it. Running the blower with a frozen coil can damage the compressor, so if you suspect ice, turn the system off and let it thaw before calling.
- What can I check before calling for HVAC repair?
- Check the thermostat first, including the batteries and whether it is set to heat or cool as intended. Check the breaker box for a tripped breaker and any power switch near the furnace or outdoor unit. Look at the air filter and replace it if it is visibly dirty, since that alone causes a lot of the calls people make. If the outside unit is covered in leaves or debris, clear it. Past that point, especially with power flickering during storms, a contractor will need to look at the igniter, the flame sensor, or the refrigerant charge directly.