HVAC Repair in Southaven, MS
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 DeSoto County will get in touch.
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Ten months of work, in DeSoto County heat and cold
Southaven homes need heat from November through March and cooling from May through September. That is ten months a year with barely a break between them. Winter nights average 34°F from December through February, and 55.3% of homes here heat with gas. Each time that furnace fires, the igniter has to light the burner, over and over on a cold night. A worn igniter is a common reason a gas furnace stops making heat.
Summer runs the other direction, with afternoons averaging 90°F from May through September. Heat like that keeps the air conditioner running for hours at a stretch, and that runtime wears on the compressor and the fan motor. When one of them fails, the unit outside may keep running while the house stops cooling.
DeSoto County has also recorded 50 damaging wind events and 14 winter storms over the past ten years. Storms like that knock out power, and in 2024, 30% of Mississippi households went at least 24 hours without it. A furnace or air conditioner that was working fine before an outage does not always start back up on its own once power returns.
- 5 months
- November through March, your system heats
- 5 months
- May through September, it cools
- 34°F
- the average winter night it heats against
- 90°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
A new furnace and air conditioner would cut about $180 a year off heating and cooling for a typical DeSoto County home.
Estimates for a typical DeSoto County home, compared with an older unit built to the previous federal minimum, from EIA household energy data, Mississippi fuel prices and NOAA climate normals. Your home will differ.
Repair makes sense when one part has failed.
Replacement makes sense when the furnace's heat exchanger is cracked, the air conditioner's compressor has failed, or repairs keep coming.
Mississippi requires HVAC contractors to hold a state license.
The Mississippi State Board of Contractors tests and licenses HVAC contractors before they can take on this kind of work. That license belongs to the contractor, not to any single job, so it follows them from one repair to the next rather than getting issued fresh each time.
For a heating and cooling repair in DeSoto County, that license is what stands behind the person doing the work. It means the state has tested this contractor and keeps a record of them, not just this one job.
Source: Mississippi State Board of Contractors
- Why is my heat not working?
- Start with the thermostat. If it is set to heat and the temperature is still below the setpoint, the problem is likely the igniter, a flame sensor that has coated over, or a blower motor that will not start. Gas furnaces will not fire if the igniter has failed, since nothing else can light the burners. If the system is electric and using a heat pump, check whether the outdoor unit is caked in ice, since that will block it from pulling in heat. A furnace that starts, runs briefly, then shuts off is often a sign the flame sensor cannot detect the flame anymore and is shutting the gas off on purpose. That is not something to bypass. A contractor can test the igniter, the sensor, and the switches in a single visit.
- Why is my system running but not cooling the house?
- The system moving air but not cooling it usually means the problem is at the refrigerant side, not the fan. A dirty filter or blocked return can starve the coil of airflow, and the coil will ice over if it does not get enough air across it. Low refrigerant from a leak will also cause this, and it will not fix itself by running longer. Check the filter first since that is the one thing worth doing yourself. If the filter is clean and the vents are open, the system needs a contractor to check refrigerant charge and the coil.
- What can I check before calling for HVAC repair?
- Check the thermostat batteries and the setting first, since a dead battery or a thermostat switched to the wrong mode looks exactly like a broken system. Check the filter next and replace it if it is gray or clogged. Look at the breaker panel for a tripped breaker, since a furnace or air conditioner that will not start at all sometimes just lost power. If the outdoor unit is not running, make sure nothing is blocking it and that the area around it is clear. If all of that checks out and the system still is not heating or cooling, a licensed contractor will need to diagnose it further.