Aerial view of a gray outdoor air conditioning condenser unit mounted on a concrete pad next to a house with vinyl siding.

AC Repair in Rock Hill, SC

Air conditioners here run from May through September. If yours quits, tell us what it's doing and a licensed contractor who covers York County will get in touch.

Tell us about the job

It takes about a minute.

Step 1 of 3: Equipment
An outdoor air conditioning condenser unit on a concrete pad next to the gray vinyl siding of a residential home.

Five months of heat wears on your AC

Rock Hill runs its air conditioner May through September, and summer afternoons average 89°F. That is five months of long, steady runs rather than short bursts, and the compressor and the fan motor carry that load every one of those days. Parts that run hard for months at a time wear faster than parts that get to rest.

York County also takes its share of hail and wind. Ten years of storm records show 34 hail events and 78 damaging wind events, with hailstones as large as 2.75 inches. A hit like that can bend the fins on your outdoor unit or crack its housing, and you may not notice until the system is straining to cool the same air it used to handle without trouble.

5 months
May through September, your air conditioner is on duty
89°F
the average summer afternoon it cools against
34 hail events
in ten years, and hail bends the fins on outdoor coils
78 wind events
in ten years, and wind drives debris into outdoor units
Isometric cutaway illustration of a single-story house with a dark shingled roof, showing interior rooms with ductwork and an indoor air handler connected to an outdoor condenser unit beside the building.
Your air conditioner works hardest from June through August.

NOAA nClimDiv, 1991–2020 normals

Overhead view of an air conditioning condenser unit on a concrete pad next to a house with asphalt shingle roofing and vinyl siding.

A new air conditioner would cut about $50 a year off cooling for a typical York County home.

  • A new one at the federal minimum, 14.3 SEER2$320 a year
  • An older air conditioner$370 a year

Estimates for a typical York County home, compared with an older unit built to the previous federal minimum, from EIA household energy data, South Carolina fuel prices and NOAA climate normals. Your home will differ.

Repair makes sense when a part like a capacitor or contactor has failed.

Replacement makes sense when the compressor has failed or the system uses R-22 refrigerant, which is no longer made.

Why is my AC not blowing cold air?
Most of the time the filter is clogged and starving the system of airflow. Check it first, because a dirty filter can ice up the coil and then you get warm air or none at all. If the filter is clean, the system could be low on refrigerant from a leak, or the outdoor unit could be dirty enough to block airflow. With summer afternoons here averaging 89°F, a system that's low on refrigerant will struggle to keep up, so it's worth having a contractor check it before the next hot stretch.
Why is my AC leaking water?
The drain line that carries condensation away is likely clogged. That water has to go somewhere, and when the line backs up it drips from the unit or pools around it. Algae and dirt build up in that line over time, so this happens even on units that are otherwise working fine. A dirty or frozen evaporator coil can also cause it, since ice on the coil melts and overflows the drain pan when it thaws.
Why won't my AC turn on?
Start with the thermostat and the breaker before assuming the worst. Make sure the thermostat is set to cool and below the room temperature, and check that its batteries aren't dead. If that's not it, look at the breaker panel and any shutoff switch near the outdoor unit, since a tripped breaker or a flipped switch will stop the system cold. Storms can trip breakers too, and this area has seen 78 damaging wind events over the past ten years, so it's worth checking that switch after a rough one. If power isn't the issue, a contractor will need to look at the system itself.