HVAC TXV Issues

I can buy that the original TXV was insulated in the unit by the manufacturer, but not the replacement. Not saying it can’t happen, but I’ve never watched a Y/T video on TXVs, and TXV replacement, and I’ve watched more than few, where the coil (assuming the evaporator coil) is damaged by a faulty TXV at least as it relates to pressures. I think I’ve seen one or a couple where the sensor bulb on the TXV wasn’t attached/anchored properly to the evaporator coil tubing and vibration of the TXV sensor bulb against the evap coil tubing caused wear and a leak.

All the parts would be covered by warranty, but you’d be on the hook for labor, and any replacement refrigerant required, unless you have a 10 year labor warranty - that’s not common.

If it’s a big enough company, and they sent out a young tech, you could ask them to send out a senior tech for a second opinion on the issue.

TLDR: it could make sense……or not. Younger techs haven’t seen it all, the older techs usually have.