Heat Pump Repair in Holly Springs, MS
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 Marshall County will get in touch.
Tell us about the job
It takes about a minute.
Your heat pump works almost every month of the year in Holly Springs
Winter nights averaging 33°F mean your heat pump is pulling heat out of cold air for months at a time, and summer afternoons near 90°F mean it switches straight over to cooling. There is barely a break between the two. Almost every household here needs one or the other running through the whole year, so the system gets little rest to recover from a hard stretch of weather.
That kind of year-round load wears on the reversing valve, the part that switches the system between heat and cooling, and on the defrost control board that clears frost off the outdoor coil on cold nights. When one of those starts to fail, you will notice the unit stuck blowing cold air in winter, or ice building up on the outdoor unit that never melts off. Marshall County has also seen its share of winter storms and damaging wind over the past ten years, and outages that knock the power out can leave a heat pump unable to restart or run through its normal cycle once power is back.
- 7 months
- October through April, your system heats
- 5 months
- May through September, it cools
- 33°F
- the average winter night it heats against
- 90°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
Mississippi requires HVAC contractors to hold a state license.
Mississippi licenses HVAC contractors through the State Board of Contractors, and the license belongs to the contractor rather than to any single job. It does not get reissued for your heat pump specifically. It already covers the business doing the work.
Repairing a heat pump means opening the refrigerant side of the system, and that part of the job falls under a separate federal rule that applies in every state. Anyone handling refrigerant has to hold EPA Section 608 certification. In Marshall County, the contractor working on your heat pump should carry both, the state license for the business and the federal certification for whoever is actually touching the refrigerant lines.
Source: Mississippi State Board of Contractors
- Why is my heat pump blowing cold air?
- A heat pump blowing cold air in winter usually means it's stuck in defrost mode or the reversing valve isn't switching over. The reversing valve tells the system whether to act as a heater or an air conditioner, and when it sticks, the unit keeps blowing cold even though it should be heating. It can also mean the system has lost refrigerant, since a heat pump needs the right charge to move heat into the house. On a night near freezing, cold air from the vents makes the house feel colder fast, so this is worth having looked at rather than waiting out.
- Why is there ice on my heat pump?
- Some frost on the outdoor unit during winter is normal, and the system should melt it off on its own through periodic defrost cycles. Ice becomes a problem when it builds up thick or stays on the coil, which usually points to low airflow, a dirty coil, or a defrost control that isn't cycling the way it should. Low refrigerant can also cause heavy icing because the coil runs colder than it's supposed to. If the unit is coated in ice rather than light frost, or the ice isn't gone within an hour or two, a contractor should look at the defrost system and the refrigerant charge.
- Why is my heat pump running but not cooling?
- If the outdoor unit is running but the house isn't cooling, the most common cause is low refrigerant, usually from a leak. A dirty outdoor coil or blocked airflow can also stop the system from moving heat out of the house even though the compressor is working. On a 90 degree afternoon this shows up fast, since the system has to work harder to keep up and any loss of capacity is easy to feel. Because refrigerant work requires EPA certification, this isn't a repair a homeowner can check or fix directly, so it needs a licensed contractor to find the cause.