Why Is My AC Blowing Warm Air?
NaTasha Brand • August 6, 2025
Remember: Real AC repair doesn’t come in a can.
Ah, summer in San Angelo—where the sun doesn’t just shine, it punishes. The last thing you need is your car’s AC betraying you by blowing hotter air than a West Texas wind. But before you grab that $12 refrigerant can from the auto parts store (we see you), let’s talk about why your AC failed, why quick fixes can make things worse, and why you need a pro to handle it.
How Your Car’s AC Works (The Short Version)
Your AC isn’t magic—it’s science, with a side of engineering. Here’s the basic breakdown:
1. Compressor: The heart of the system, pumping refrigerant.
2. Condenser: Cools the refrigerant (usually in front of the radiator).
3. Expansion Valve/Orifice Tube: Regulates refrigerant flow.
4. Evaporator: The part that actually blows cold air into your cabin.
5. Relays, Switches & Sensors: The nervous system telling everything when to turn on/off.
When one part fails, the whole system suffers. And trust us, it’s never just "low refrigerant."
Why AC Systems Fail (And Why DIY Fixes Often Backfire)
• Refrigerant Leaks: If it’s low, there’s a leak. Adding more without fixing the leak is like pouring water into a bucket with a hole.
• Failed Compressor: Often caused by low refrigerant (see above).
• Electrical Issues: Bad relays, fuses, or switches can stop the AC clutch from engaging.
• Clogged Condenser: Texas dust and bugs love to clog fins, reducing cooling power.
• Worn Seals & O-Rings: Over time, they dry out and leak.
Now, about those DIY refrigerant cans, trust us, just don’t. They often contain sealants that can clog your system, and overcharging can damage the compressor. Plus, handling refrigerant requires EPA certification for a reason.
Why You Need a Pro (And Why Ric Henry’s Auto Service is Your Best Bet)
At Ric Henry’s Auto Service, we don’t guess—we diagnose. Our techs use dealer-grade tools, follow factory procedures, and actually fix the problem instead of masking it. Plus, we back all our work with a 3-year/36,000-mile warranty—something no parts store can offer.
We also offer full-system maintenance, so your AC stays frosty all summer. Because let’s be honest—San Angelo summers are brutal enough without your car joining in on the heatwave.
If your AC is blowing warm air, don’t sweat it (literally). Bring it to us before you waste money on quick fixes that could turn a small repair into a very expensive one.
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