Texas HVAC Pros
An outdoor heat pump unit mounted on a concrete pad in the front yard of a gray suburban house.

Heat Pump Repair in Brownsville, TX

Homes here need heat from December through January and cooling from February through November. If your system quits, tell us what it's doing and a licensed contractor who covers Cameron County will get in touch.

Tell us about the job

It takes about a minute.

Step 1 of 3: Equipment
A grey heat pump outdoor unit mounted on a concrete pad in a suburban backyard, with a single-storey house visible behind it.

Your heat pump runs almost every day of the year

Brownsville needs cooling ten months of the year, and summer afternoons averaging 94°F keep the compressor working most of the day. December and January bring the only real cold, with winter nights averaging 53°F, and that is when the system switches over to heat. That switch between modes wears on the reversing valve over time. When it sticks, the unit blows cold air when you set it to heat, or it won't shut off cooling when it should.

Most homes here heat with electricity, so when the power goes out, the heat goes with it. Texas saw 33% of households lose power for 24 hours or more in 2024. The outdoor unit should start back up on its own once power returns. If it doesn't, the problem is in the unit, not just the outage.

2 months
December through January, your system heats
10 months
February through November, it cools
53°F
the average winter night it heats against
94°F
the average summer afternoon it cools against
Isometric cutaway illustration of a single-story house showing interior ductwork, an indoor air handler, and an outdoor condenser unit connected by lines along the exterior wall.
Your system heats December through January and cools February through November.

NOAA nClimDiv, 1991–2020 normals

Texas requires HVAC contractors to hold a state license.

The Texas Department of Licensing and Regulation tests contractors before it licenses them, and it keeps a record of who holds one. That license belongs to the contractor, not to any single job, so what you are checking is the person and the business on file with the state, not something issued for your repair specifically.

Because Texas licenses the contractor, that license is what stands behind whoever works on your heat pump. A heat pump repair also puts someone into the refrigerant side of the system, and federal law requires that technician to hold EPA Section 608 certification, in Texas or any other state. That certification is separate from the state license. One tells you Texas has tested and tracked this contractor. The other tells you the person handling the refrigerant is certified to do that part of the job under federal law.

Source: Texas Department of Licensing and Regulation

Why is my heat pump blowing cold air?
In heating mode, a heat pump moves warmth from outside air into your home, so the air from the vents is naturally cooler than what a furnace puts out. If it feels cold rather than mild, the system may be stuck in defrost, low on refrigerant, or the reversing valve may not be switching over correctly. Check that your thermostat is set to heat and not fan only. If the air stays cold for more than a few minutes, a contractor should look at the reversing valve and refrigerant charge.
Why is there ice on my heat pump?
A little frost during a defrost cycle is normal, especially on the cold nights you get here in December and January. Heat pumps melt this off automatically every hour or so. Ice that builds up and stays means airflow is blocked, the refrigerant charge is off, or the defrost control has failed. Check the outdoor coil for leaves or debris and make sure the filter inside is clean. If the ice keeps coming back after that, have a contractor check the defrost board and refrigerant level.
Why is my heat pump running but not cooling?
If the unit runs but the air is not cold, the most common causes are a dirty filter, a blocked outdoor coil, or low refrigerant from a leak. Summer afternoons here average 94°F, and a system low on refrigerant will struggle to keep up, running long hours without bringing the temperature down. Check the filter and clear any leaves or grass clippings from around the outdoor unit first. If it is still not cooling after that, the system needs a contractor to check refrigerant charge and look for a leak.