When your air conditioner is running but blowing warm air, it’s not just frustrating — it could be a sign of a more serious issue. At Greentech Engineering Heating & Air Conditioning, we recently helped a homeowner in McKinney, TX 75069 who faced exactly that. The culprit? A hidden refrigerant leak buried deep within the walls.
⚠️ The Challenge: A Hidden Refrigerant Leak
The homeowner called us when their downstairs AC system stopped cooling. Our technicians discovered the refrigerant pressure was at zero — completely empty. Using our advanced electronic leak detection tools, we traced the problem to a tiny pinhole leak in the copper line set — a section of tubing concealed inside an interior wall.
To make matters worse, the home’s high ceilings and tight wall cavities made access a serious challenge. But one thing was clear: without properly sealing the line set, the system would continue losing refrigerant, requiring expensive top-offs and risking further damage.
🛠️ The Greentech Solution: Expert AC Repair in McKinney, TX
Rather than a temporary fix, we provided a comprehensive, code-compliant solution designed to restore full performance and prevent future problems:
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Full Line-Set Replacement: We removed the old copper tubing and installed a brand-new, insulated line set, running it cleanly through the wall cavity and sealing all penetrations.
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New Liquid-Line Dryer: A fresh filter/drier was installed to protect the system from moisture and contaminants.
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Deep Vacuum and Precision Charge: We pulled the system down to 500 microns and recharged it with virgin R-410A refrigerant, precisely weighed in per manufacturer specs. We verified the system pressure and conducted thorough leak testing.
💡 Results: Restored Comfort, Lower Bills & Long-Term Peace of Mind
This AC repair in McKinney, TX delivered immediate and long-lasting benefits:
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✅ Instant Comfort – The home cooled down quickly, even on a 100°F day.
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✅ Lower Utility Bills – Proper refrigerant charge means the system doesn’t overwork, improving efficiency.
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✅ No More Hidden Leaks – A completely sealed line set prevents future refrigerant loss, saving hundreds on refill costs.
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✅ Compressor Protection – Avoided major component damage by addressing the issue early.
Why Homeowners in McKinney Trust Greentech
We specialize in finding and fixing hidden HVAC issues that others miss. Our team uses precision tools, clear communication, and licensed expertise to ensure you’re never left guessing. Whether it’s a tough leak or a full system replacement, we get the job done right — the first time.
📞 Schedule Your AC Repair in McKinney Today
If your air conditioner is blowing warm air or you’re dealing with rising energy bills, don’t wait. Reach out to Greentech Engineering Heating & Air Conditioning for transparent pricing, honest advice, and expert workmanship.
We are serving McKinney, TX and surrounding areas and contact us.
