06/12/2026
Another system back up and running in the Montagne Court subdivision of Little Rock today.
The homeowner had been experiencing cooling issues, and after diagnosing the system, I found a failed TXV (thermal expansion valve). One of the contributing factors was that the previous installation was not brazed with nitrogen. When copper lines are brazed without nitrogen flowing through the system, oxidation forms inside the tubing. Over time, those contaminants can travel through the refrigerant circuit and cause restrictions or damage to components like the TXV.
I replaced the failed TXV, installed a new filter drier, pressure tested the system, pulled a deep vacuum, and verified proper operation before leaving.
Attention to installation details matters. Small shortcuts during installation can lead to expensive repairs down the road.
Thank you to the homeowners in Little Rock for trusting Sensible Heat & Air.
π Montagne Court Subdivision β Little Rock, AR
πΊπΈ Veteran-Owned & Operated
π 501-772-2828
π sensibleheatandair.com
Sensible Heat & Air
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