Heat Pump Repair in Lexington, 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 Lexington County will get in touch.
Tell us about the job
It takes about a minute.
Your heat pump works most of the year here
Lexington County calls for heat or cooling 10 months of the year. Winter nights averaging 36°F mean the heat pump goes into defrost often, reversing itself to clear frost off the outdoor coil. The reversing valve takes that wear. Summer afternoons near 91°F push the load the other way, and the compressor carries it.
Most homes here heat with electricity, so when the heat pump stops working there is usually nothing else to fall back on. That matters more because of how often the power goes out. Close to half of South Carolina households went at least 24 hours without power in 2024, and the county has seen 325 damaging wind events over the past ten years. A heat pump that will not restart cleanly after an outage, or one whose defrost cycle quits, leaves the house without heat right when it is needed.
- 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 pump blowing cold air?
- In heating mode, a heat pump moves warm air through the vents at a lower temperature than a furnace would, so it can feel cool even when it is working right. If the air feels truly cold, not just cool, check that the outdoor unit is running and not caked in ice. A dirty filter or a frozen coil will also cut off the heat, and the fix depends on which one it is. A stuck reversing valve is another cause, and that one needs a contractor to sort out.
- Why is there ice on my heat pump?
- A thin coat of frost on the outdoor unit in cold weather is normal, and the system melts it off on its own a few times a day. Thick ice that builds up and stays is not normal. That usually means the defrost cycle has stopped working, airflow is blocked, or the refrigerant charge is off. With winter lows here averaging 36°F, the outdoor unit runs through a lot of defrost cycles each night, so a fault in that system shows up fast. A contractor needs to check it before ice damages the coil or the fan.
- Why is my heat pump running but not cooling?
- If the outdoor unit and indoor blower are both running but the air coming out is not cold, the system is likely low on refrigerant or losing airflow somewhere. A dirty filter or a coil coated in dust will block airflow the same way. On a 91°F afternoon, a system in this state will run constantly and still fall behind, which makes the problem obvious fast. A contractor can check the charge and the coils and tell you which one it is.