Expansion Valve (TXV) Replacement — AC Repair
Expansion valve restricting refrigerant flow? Expert TXV diagnosis and replacement in Western NC.
Professional Expansion Valve (TXV) Replacement — AC Repair in Asheville & Western NC
What the TXV Does in Your AC System
The thermostatic expansion valve (TXV) meters the precise amount of liquid refrigerant entering the evaporator coil. It's a critical component for efficient cooling — too much refrigerant floods the coil and risks compressor damage; too little starves the coil and reduces cooling capacity. When a TXV fails, it typically sticks in one position — either flooding or starving the evaporator — causing symptoms like poor cooling, ice formation, high head pressure, or compressor overheating.
A Difficult Diagnosis Done Right
TXV problems are notoriously tricky to diagnose because the symptoms mimic other refrigerant system issues. Low superheat could be a TXV problem or an overcharge. High superheat could be a TXV problem or a low charge from a refrigerant leak. Our technicians use superheat and subcooling measurements, along with temperature differential readings and pressure analysis, to isolate the TXV as the specific failure point before recommending replacement.
Precision Replacement Work
TXV replacement involves recovering refrigerant, removing the failed valve, brazing in the new valve (matched to your system's tonnage and refrigerant type), replacing the filter-drier, evacuating the system with a vacuum pump, and recharging to manufacturer specifications. It's detailed work that requires proper tools and training — the kind of AC repair that Quality Comfort handles expertly for homeowners across Asheville and Western NC.
Why Choose Us
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20+
Years
35+
Team Members
- NATE-certified technicians
- NC Licensed & Insured
- 24/7 emergency service
- Upfront, honest pricing
- All major brands serviced
- Financing available, with approved credit
Need help now?
(828) 252-8544
NATE-certified. Locally owned. Serving Western NC since 2005.
FAQ
Frequently Asked Questions About Expansion Valve (TXV) Replacement — AC Repair
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Expansion Valve (TXV) Replacement — AC Repair Across Western North Carolina
Quality Comfort provides expansion valve (txv) replacement — ac repair services throughout Western NC. Our NATE-certified technicians serve homeowners and businesses in all of these communities from our Asheville headquarters.
Expansion Valve (TXV) Replacement — AC Repair? We Can Help.
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