Heat Pump Repair in Mableton, GA
Homes here need heat from November through April and cooling from May through September. If your system quits, tell us what it's doing and a licensed contractor who covers Cobb County will get in touch.
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Eleven months of work, then a cold night it can't answer
Your heat pump runs almost year round in Mableton, heat from November through April and cooling from May through September. That leaves it about one month of rest. On winter nights averaging 34°F it has to pull heat out of cold outside air, and that work falls hardest on the compressor and the defrost cycle that clears frost off the outdoor coil. When that cycle can't keep up, you get a unit that runs and runs but blows air that isn't quite warm.
Cobb County has logged 70 damaging wind events and 5 winter storms over the past ten years, and across Georgia almost a third of households lost power for a day or more in 2024. A heat pump that loses power mid-cycle doesn't always pick back up cleanly, and a storm can knock the outdoor unit around or drive debris into the coil. If your heat pump was working fine before an outage or a storm and isn't now, that is where to look first.
- 6 months
- November through April, your system heats
- 5 months
- May through September, it cools
- 34°F
- the average winter night it heats against
- 88°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
Georgia requires HVAC contractors to hold a state license.
That license comes from the State Construction Industry Licensing Board. It belongs to the contractor, not to any single job, so it is the business itself that carries the credential from one repair to the next.
A heat pump repair means opening the refrigerant side of the system in most cases. That work requires EPA Section 608 certification, a federal rule that applies to the technician no matter what state you're in. So the license accounts for the contractor, and the federal certification covers the refrigerant work itself.
Source: Georgia Secretary of State
- Why is my heat pump blowing cold air?
- In heat mode, air from the vents will feel cool next to your skin even when the system works fine, because it's warmer than the room but still well under your body temperature. If the air is actually cold, or the system won't get past that lukewarm point, check that the outdoor unit isn't caked in ice or blocked by leaves and debris. A refrigerant leak or a failing reversing valve will also keep the system from delivering real heat, and both call for a contractor to check.
- Why is there ice on my heat pump?
- A heat pump frosts over on its own in cold weather and normally clears itself through a defrost cycle every so often, so a light coating on a 34°F night is not a problem by itself. Ice that keeps building and doesn't melt off usually means airflow is restricted, from a dirty filter, a blocked coil, or snow packed around the unit. It can also mean the defrost control or a fan motor has failed. Thick ice that doesn't clear on its own is worth having a contractor look at before it strains the compressor.
- Why is my heat pump running but not cooling?
- If the unit is running but the air isn't cool, the most common cause is low refrigerant from a leak, or a coil so dirty or iced over that it can't pull heat out of the air. Check that the outdoor unit has clear airflow on all sides and that the filter isn't clogged. On an 88°F afternoon a struggling system will fall further behind, so it's worth having a contractor check refrigerant levels and the coils rather than waiting it out.