HVAC Repair in Spartanburg, SC
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 Spartanburg County will get in touch.
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Twelve months of work, then a storm knocks the power out
Your system does not get a season off in Spartanburg County. Heat runs October through April, seven months, then cooling takes over for May through September. That is twelve months of parts turning on and shutting off with almost no rest between.
Winter nights averaging 33°F keep the furnace cycling on the coldest stretches, and summer afternoons near 88°F push the air conditioner hard for months at a time. Most homes here heat with electricity, so when the power goes, the heat goes with it. Nearly half of South Carolina households lost power for a full day or more in 2024, and this county has seen 125 damaging wind events over the past ten years. A storm does not just knock the lights out. It can leave your system dead until the power comes back, and sometimes it does not come back on its own.
- 7 months
- October through April, your system heats
- 5 months
- May through September, it cools
- 33°F
- the average winter night it heats against
- 88°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
- Why is my heat not working?
- The most common reason is a bad igniter or a dirty flame sensor, both of which stop the burners from lighting even when the blower runs. A dead thermostat battery or a tripped breaker can do the same thing, so check those first. If the blower runs but no warm air comes out, the problem is likely with ignition rather than the thermostat. With winter nights here averaging 33°F, it is worth having this looked at quickly rather than waiting it out.
- Why is my system running but not cooling the house?
- If the outdoor unit and indoor blower are both running but the air is not cold, the most likely cause is a refrigerant leak or a coil that is frozen over from restricted airflow. A dirty filter is often behind the second problem, since it starves the coil of the air it needs to do its job. Check the filter first. If it is clean and the air still is not cold, the system needs a contractor to check refrigerant charge and look for a leak.
- What can I check before calling for HVAC repair?
- Check the thermostat batteries and the setting, then check the breaker for the furnace or air conditioner. Next, pull the filter and look at it in the light. If it is gray or clogged, replace it, since a blocked filter can cause both weak heat and weak cooling. If the outdoor unit is not running at all, look for a tripped breaker or a disconnect switch that got knocked. These few checks rule out the simplest causes before a contractor needs to diagnose anything further.