Heat Pump Repair in Jacksonville, FL
Homes here need heat from December through February and cooling from April through October. If your system quits, tell us what it's doing and a licensed contractor who covers Duval County will get in touch.
Tell us about the job
It takes about a minute.
Your heat pump runs almost year round
In Duval County your heat pump works ten months of the year, cooling through summer afternoons that average 91°F and switching to heat on winter nights that average 46°F. It rarely gets a long rest. That kind of duty cycle wears on the compressor and the reversing valve, the parts that carry the load every time it switches over.
Storms add to that load. Duval County has logged 303 damaging wind events over the past ten years, and 38% of Florida households lost power for at least 24 hours in 2024. A heat pump that loses power mid cycle and comes back on when it returns can trip a breaker or strain a compressor that was already working hard. If your outdoor unit is short cycling, not switching over to heat, or not restarting after an outage, that is often where it starts.
- 3 months
- December through February, your system heats
- 7 months
- April through October, it cools
- 46°F
- the average winter night it heats against
- 91°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
Florida requires HVAC contractors to hold a state license.
The Construction Industry Licensing Board tests contractors before they can hold this license, and it keeps a record of who holds one. That license belongs to the contractor, not to any single job, so the same license covers this repair and the next one.
A heat pump repair opens the refrigerant side of the system, and federal law requires whoever does that work to hold EPA Section 608 certification, no matter what state they work in. In Florida, the state license is what stands behind the person doing this job, and the federal certification is what allows them to touch the refrigerant at all.
Sources: Florida Legislature · Florida Department of Business and Professional Regulation
- 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's working right, usually around body temperature or a bit above, because it's warming air rather than burning fuel to heat it hot. If the air coming out is truly cold, colder than the room, check whether the system has switched into defrost mode outdoors, which is normal for short periods on cold mornings. If it stays cold and never warms up, the problem is likely the reversing valve stuck in the wrong position, or the outdoor unit isn't running at all. That calls for a licensed contractor to check the refrigerant circuit.
- Why is there ice on my heat pump?
- Some frost on the outdoor coil during a cold snap is normal, and the system should clear it on its own by running a defrost cycle every so often. Thick ice that doesn't melt off, or ice that builds up even when it's not that cold outside, points to a real problem. Low refrigerant, a failing defrost control board, or a dirty coil that can't shed heat properly are the usual causes. Running the system with ice built up can damage the compressor, so it's worth having a contractor look at it rather than waiting for it to melt on its own.
- Why is my heat pump running but not cooling?
- If the outdoor unit and indoor fan are both running but the air isn't cold, start with the filter. A clogged filter starves the system of airflow and can make it seem like it's not cooling even though everything is turning on. If the filter's clean, low refrigerant from a leak is the next likely cause, especially if you notice ice on the outdoor coil along with weak cooling. A failing compressor can also cause this, since it's the part that actually moves the refrigerant and does the cooling work. Any of these needs a licensed contractor to diagnose with gauges, since guessing at refrigerant levels from the outside isn't reliable.