I'm just starting out as a new technician working for one of the P/T teachers from our community college HVAC/R program in Alabama. Very thankful for my job with him btw...My question is this. Have anybody else been seeing alot of TXV failures in these new American Standard/Trane units, and the Rheems as well. I believe they're Emerson valves. Seems like my boss has been replacing a large percentage of these within the first year.