Heat Pump Installation and Repair in McAllen, TX
Installation, repair, and maintenance of heat pumps, the best year round match for Valley weather.
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Heat Pump Services in the Rio Grande Valley
A heat pump uses the same refrigeration cycle as an air conditioner, with a reversing valve that lets it run in either direction. In summer it moves heat out of your house. In winter it pulls heat out of the outdoor air, even fairly cool air, and moves it inside.
Electric resistance heat converts one unit of electricity into one unit of heat. A heat pump in Valley winter conditions typically delivers two to four units of heat for the same unit of electricity, because it is transporting heat rather than creating it. In a region where most homes are all electric, that difference is meaningful.
A&A HVAC LLC installs, repairs, and maintains heat pumps of every major brand, including standard split systems, packaged units, and ductless mini split heat pumps.
Symptoms to look for
- The system blows cool air when set to heat
- The outdoor unit runs in heating mode but the house never warms up
- Ice builds on the outdoor unit and does not clear
- The system switches to auxiliary or emergency heat constantly
- Loud clunking when the system changes between heating and cooling
- The outdoor unit runs continuously in mild weather
Common problems we find
Reversing valve failure
The component that lets the system switch between heating and cooling. A stuck valve leaves the heat pump able to do only one of the two, which is why a system that cools fine may refuse to heat.
Defrost control problems
Heat pumps periodically melt frost off the outdoor coil. A failed defrost board or sensor either leaves the coil iced or puts the unit into defrost far more often than necessary, wasting energy and blowing cool air indoors.
Auxiliary heat running unnecessarily
If the backup heat strips engage whenever the heat pump runs, you are paying resistance heat prices while owning a heat pump. Usually a thermostat configuration or staging problem, and often an expensive one to leave alone.
Low refrigerant charge
Heat pumps are more sensitive to charge than straight cooling systems because they have to perform in both directions. A charge that is close enough for cooling may leave heating performance poor.
Outdoor coil restriction
In heating mode the outdoor coil is absorbing heat, so a coil packed with dust, grass, or lint hurts heating performance just as much as it hurts cooling.
Ready to get this fixed?
Call A&A HVAC LLC and describe what is happening. We answer 24 hours a day.
How we handle heat pump services
Mode by mode testing
We run the system in cooling, in heating, and through a defrost cycle, because a fault often appears in only one mode.
Reversing valve and defrost verification
Valve operation, defrost board function, and sensor accuracy checked directly.
Refrigerant and airflow measurement
Pressures, superheat, subcooling, and static pressure measured in the mode where the complaint occurs.
Auxiliary heat staging review
We confirm backup heat only engages when it genuinely should, which is one of the quickest wins available on a misconfigured heat pump.
Repair or replacement recommendation with pricing
Explained before any work begins.
Side by side
| Factor | Heat pump | AC plus electric strips | AC plus gas furnace |
|---|---|---|---|
| Heating efficiency here | Highest | Lowest | Good, depends on gas rates |
| Cooling efficiency | Same as a comparable AC | Same | Same |
| Upfront cost | Moderate to high | Lowest | Moderate, higher if gas must be run |
| Equipment count | One system for both seasons | One system plus strips | Two appliances to maintain |
| Performance in a hard freeze | Needs backup strips | Strong | Strong |
| Best fit | Most Valley homes | Budget replacements | Homes with existing gas service |
Why choose A&A HVAC LLC for heat pump services
- Heat pumps tested in both modes and through defrost, not just in whichever mode the weather allows.
- Auxiliary heat staging checked and corrected, which often cuts winter bills on its own.
- Experienced with inverter driven and variable capacity heat pumps, not just single stage equipment.
- Straight comparison against heat strips and gas so you can choose with real numbers.
Frequently Asked Questions
What is the difference between a heat pump and an air conditioner?
Do heat pumps work when it freezes in the Valley?
Why is my heat pump blowing cold air in heating mode?
How long do heat pumps last in South Texas?
Will a heat pump lower my electric bill?
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Reviewed by the A&A HVAC LLC service team, licensed HVAC technicians serving McAllen and the Rio Grande Valley.
Last reviewed for accuracy on . Guidance here is general. Diagnosis of your specific system requires an on site inspection.