AC Repair
Why Is My AC Not Cooling in McAllen? 7 Causes and What to Check
AC running but not cooling your McAllen home? Here are the seven most common causes, which ones you can check yourself, and when to stop and call a technician.
5 min read
Open 24 hours, 7 days a week
Emergency HVAC Repair in McAllen and the Rio Grande Valley
When your air conditioning fails in a South Texas summer, waiting until morning is not an option. A&A HVAC LLC answers the phone at any hour and dispatches technicians across McAllen, Edinburg, Mission, Pharr, and the wider Valley, with the parts on board to fix most failures on the first visit.
- Every major brand serviced
- Based in McAllen, not a call center
- English and Spanish
AC out right now?
Two things to check before you call, and one thing to stop doing.
- Check the air filterIf you cannot see light through it, replace it. A clogged filter can freeze the coil and stop cooling entirely.
- Look at the outdoor unitThe fan on top should be spinning. A hum with no movement is almost always a failed capacitor.
- Stop resetting a breaker that keeps trippingOne trip may be a fluke. Repeated trips mean a short or a failing motor. Leave it off and call.
HVAC services across the Rio Grande Valley
Residential and commercial heating and cooling, from a Saturday night no cool call to a full system replacement.
Emergency HVAC Repair24/7
Around the clock response when your air conditioning or heat fails, including nights, weekends, and holidays.
Learn moreAir Conditioning Repair24/7
Diagnosis and repair for systems that are not cooling, short cycling, leaking, or making noise.
Learn moreAC Installation
New cooling systems sized by calculation, not guesswork, and installed to hold up in Valley heat.
Learn moreAC Replacement
Straight guidance on when replacing beats repairing, and system replacement done right.
Learn moreHeating Repair24/7
Furnace, heat pump, and electric heat repair for the handful of Valley nights that genuinely get cold.
Learn moreHeat Pump Services
Installation, repair, and maintenance of heat pumps, the best year round match for Valley weather.
Learn moreMini Split Installation
Ductless systems for rooms that central air was never designed to reach.
Learn moreIndoor Air Quality
Filtration, humidity control, and ventilation solutions for Valley dust, humidity, and allergens.
Learn morePreventive Maintenance
Tune ups that catch the small problems in spring instead of the big ones in August.
Learn moreCommercial HVAC24/7
Rooftop units, split systems, and package equipment for Valley businesses, with 24 hour response.
Learn more
A local contractor, held to what we actually measure
We diagnose from readings rather than guesses, quote in writing before starting, and tell you plainly when a repair is the wrong answer.
Open 24 hours
Emergency calls answered every day of the year.
Locally based in McAllen
Our shop is at 10202 N 14th St, not a call center out of state.
Insured and accountable
Work is quoted in writing and approved by you before it starts.
Every major brand
Carrier, Trane, Lennox, Rheem, Goodman, York, Daikin, and more.
English and Spanish
Technicians who can explain the problem in your language.
Emergency service that is genuinely 24 hours
A real person answers at any hour, not an answering service that leaves a message for the morning. Our trucks carry capacitors, contactors, float switches, and common motors so most after hours calls end with the system running.
Diagnosis by measurement
Refrigerant pressures, superheat and subcooling, amp draw against nameplate, capacitors tested under load, and static pressure. Ask for the readings and you will get them.
Straight answers on repair versus replace
If your system has life left, we say so. If the arithmetic favors replacement, we show you the numbers rather than asking you to take our word for it.
What Rio Grande Valley customers say
Our reviews live on our Google Business Profile, where every one of them comes from a verified customer. We would rather point you there than reprint selected quotes here.
If A&A HVAC LLC has worked on your system, leaving an honest review helps other Rio Grande Valley homeowners decide who to call.
Find A&A HVAC LLC in McAllen
A&A HVAC LLC10202 N 14th StMcAllen, TX 78504
Open 24 hours, 7 days a week
Serving McAllen and the Rio Grande Valley
Our shop is in north McAllen, which puts most of Hidalgo County within a short drive. We cover Cameron County as well.
- McAllen, TXOur home base
- Edinburg, TX8 miles, about 15 minutes
- Mission, TX9 miles, about 18 minutes
- Pharr, TX7 miles, about 15 minutes
- Hidalgo, TX11 miles, about 18 minutes
- Palmview, TX14 miles, about 22 minutes
- Donna, TX16 miles, about 22 minutes
- Weslaco, TX22 miles, about 26 minutes
- Harlingen, TX40 miles, about 42 minutes
- Brownsville, TX60 miles, about 65 minutes
Also serving San Juan, Alamo, Mercedes, Palmhurst, Rio Grande City, Los Fresnos, La Feria, Elsa, Edcouch, Progreso, and the surrounding Rio Grande Valley communities. See all service areas.
Frequently asked questions
Common questions from Rio Grande Valley homeowners. More in our full FAQ.
Do you really offer 24 hour emergency HVAC service?
Yes. A&A HVAC LLC answers emergency calls 24 hours a day, 7 days a week, including holidays. Call (877) 237-1820 and you reach someone who can dispatch a technician rather than an answering machine that takes a message for the morning.
What areas of the Rio Grande Valley do you serve?
A&A HVAC LLC serves McAllen, Edinburg, Mission, Pharr, San Juan, Alamo, Donna, Weslaco, Mercedes, Harlingen, Palmhurst, Palmview, Hidalgo, Rio Grande City, Brownsville, and the surrounding Rio Grande Valley communities across Hidalgo and Cameron counties. Our shop is at 10202 N 14th St in McAllen.
How much does an AC repair cost in McAllen?
Cost depends on what failed. Common repairs such as a capacitor, contactor, float switch, or a clogged condensate drain are at the lower end. Compressor or coil replacement is substantially more. A&A HVAC LLC diagnoses the problem, explains the cause, and gives you the price before any work begins, so nothing on the invoice is a surprise.
How long do air conditioners last in South Texas?
Typically 10 to 15 years in the Rio Grande Valley, shorter than the 15 to 20 years quoted nationally. The difference is run hours. A Valley system may run two to three times as many hours per year as the same equipment in a milder climate, and salt bearing air off the Gulf accelerates coil corrosion, especially near the coast.
How often should I service my HVAC system in the Valley?
Twice a year: a full cooling tune up in late winter or early spring before the season starts, and a shorter heating check in the fall. Systems here run far more hours than the national average, so the once a year guidance written for that average is on the light side. Most manufacturer warranties also require documented annual maintenance to remain valid.
Do you offer financing on a new system?
Yes, financing options are available for system replacement and installation. Ask when you request your estimate and we will go over the available plans and what qualifying involves.
Do you provide free estimates?
Yes. Estimates for system replacement and installation are free and provided in writing after we see the home, because a firm price requires knowing your ductwork, equipment location, and electrical service. Diagnostic visits on an existing system carry a service charge, which is explained when you book.
Do your technicians speak Spanish?
Yes. A&A HVAC LLC has English and Spanish speaking technicians, so you can have the problem explained in whichever language you prefer.
Latest HVAC articles
Practical guidance written for South Texas conditions, not the national average.
AC Repair
Ice on Your AC? Why Coils Freeze and How to Thaw One Safely
Ice on the refrigerant line or indoor coil means restricted airflow or low refrigerant. Here is how to thaw it safely and what has to be fixed afterward.
5 min readAC Repair
Why Is My AC Leaking Water? Causes and What to Do First
Water around your air handler or dripping through the ceiling? Here is what causes AC water leaks in humid South Texas and the first thing to do about it.
6 min read
Need HVAC service in the Rio Grande Valley?
Call now and speak to someone who can help. Our line is answered 24 hours a day, every day of the year.
Content reviewed by the A&A HVAC LLC service team. Last reviewed .