I know there is probably what I'm looking for within the existing threads, or in the Pro section but I'm not finding it.
We are an eastern State of Washington Goodman/Amana dealer (for climate data).
We install a lot of heat pumps.
We are having a lot of TXV failures within one or two years. They are all SSZ and ASZ 14+ SEER systems. We have extensively investigated our installation procedures and have ruled out moisture, dirt, soot (nitrogen braze), etc.
We noticed they have switched from Parker to Emerson valves, but Goodman is being tight lipped and these failures and the resultant repairs are getting old. Any body else having this problem?
(Pro's only reply please.)