Heat Pump Repair in Rock Hill, 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 York County will get in touch.
Tell us about the job
It takes about a minute.
Rock Hill asks a lot of your heat pump, all year
Your heat pump runs every month here. Heat from October through April, cooling from May through September, with no real break between the two. Winter nights average 33°F, so the system spends the cold months in defrost cycles and long run times just to keep up, and summer afternoons averaging 89°F push it just as hard the other way.
That year-round load wears on the reversing valve, the part that switches the system between heating and cooling. If it sticks, the unit blows cold air when it should be heating, or won't switch over when the season does. Rock Hill has also logged 78 damaging wind events over the past ten years, and wind-driven debris is hard on the outdoor unit's coil and fan. When the power drops, and close to half of South Carolina households lost power for at least a day in 2024, the heat pump should come back on by itself once it's restored. If it doesn't, the problem is usually in the system, not the outage.
- 7 months
- October through April, your system heats
- 5 months
- May through September, it cools
- 33°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 pump blowing cold air?
- In heating mode, a heat pump puts out air that feels cool next to your skin even when it is working right, because the air coming out is warmer than the room but still well below your body temperature. If the air is truly cold, with no warmth to it at all, check that the thermostat is set to heat and not fan only. If it is set right and still blowing cold, the system may have lost refrigerant or the reversing valve may be stuck, and a contractor needs to check it.
- Why is there ice on my heat pump?
- A heat pump forms frost on its outdoor coil during cold weather, and it normally melts that off on its own through a defrost cycle a few times a day. If the ice is heavy, covers the whole unit, or never clears, something is stopping that defrost cycle from working or from finishing. That can be a failed defrost control, a stuck reversing valve, or low refrigerant, and it needs a contractor to sort out which one.
- Why is my heat pump running but not cooling?
- If the outdoor unit and indoor blower are both running but the air is not cold, the most common cause is low refrigerant from a leak. A dirty outdoor coil can also keep the system from shedding heat properly, especially on the hot summer afternoons here. Either way the system needs a contractor to find the cause, since running it low on refrigerant for long can damage the compressor.