HVAC Repair in Aiken, SC
Homes here need heat from November through March and cooling from May through September. If your system quits, tell us what it's doing and a licensed contractor who covers Aiken County will get in touch.
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Ten months of work a year, with Aiken County storms thrown in
Your system works most of the year here. Heat from November through March, cooling from May through September, only two months off in between. Summer afternoons averaging 91°F push the compressor hard, day after day. Winter lows near 36°F mean the heat runs through the night too.
Most homes in the county heat with electricity, so a breaker problem or a bad heat strip shows up fast, the house just doesn't warm up. Storms add another layer. Aiken County has seen 185 damaging wind events over the past ten years, and across South Carolina almost half of households lost power for a full day or more in 2024. When power drops and comes back, most systems restart on their own, but a system already worn from a full cooling season doesn't always come back running right.
- 5 months
- November through March, your system heats
- 5 months
- May through September, it cools
- 36°F
- the average winter night it heats against
- 91°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
- Why is my heat not working?
- Most of the time it comes down to power, gas, or airflow. Check your thermostat is set to heat and the temperature is set above room temperature, then check your breaker panel, since a tripped breaker will stop a furnace or heat pump cold. If you have a gas furnace, look for a pilot light or igniter that isn't lighting. A heat pump can also ice over on a cold night and stop keeping up, especially with winter lows here averaging 36°F. If the basics check out and you're still cold, a contractor needs to look at it.
- Why is my system running but not cooling the house?
- If the blower is running but the air isn't cold, check your air filter first. A clogged filter chokes airflow across the coil and can cause it to freeze, and once it's iced over the system blows warm air even though it's running. Check that your outdoor unit isn't blocked by leaves or debris either, since it needs open airflow to release heat. With Aiken afternoons averaging 91°F in summer, a system fighting a dirty filter or a frozen coil falls behind fast. If the filter is clean and the outdoor unit is clear, the refrigerant charge or a part inside the system likely needs a contractor's attention.
- What can I check before calling for HVAC repair?
- Start with the thermostat. Make sure it's set to the right mode, the temperature is actually calling for heat or cooling, and the batteries aren't dead. Next check your breaker panel for a tripped breaker, since that alone can shut down a furnace, air handler, or outdoor unit. Look at the air filter and replace it if it's dirty, and make sure nothing is blocking the outdoor unit or the vents inside the house. Aiken has seen 185 damaging wind events over the past ten years, so after any rough weather it's also worth checking that the outdoor unit wasn't hit by debris or knocked around. If everything checks out and the system still isn't working right, a contractor will need to diagnose it further.