Failure causes of thermostatic expansion valve TXV ! By Imran

thermostatic expansion valve or TXV — can cause a number of symptoms in a system. Here are the ways a TXV can become restricted:

Wax buildup in the valve because the wrong oil was used in the system; Sludge from the byproducts of a compressor burnout; Partial TXV orifice freeze-up from excessive moisture in the system; Foreign material in the orifice; Oil-logged TXV from refrigerant flooding the compressor; Too much oil in the system; TXV is adjusted too far closed; Manufacturer’s defect in the valve; or Plugged inlet screen on TXV https://www.youtube.com/channel/UCej-mX5F6GqsPlhhHrQC4Nw