Not according to the Manufacturers Technical Rep, They came out to see how a unit could have a negative S/C, after checking through the system with me he determined it was probably a clogged up filter dryer, the recommendation to change the TXV was so we would not have to pump down the system again to change it if there were other problems.
Originally Posted by hvacmike85
Mainstream Engineering Certified.
HVAC/R PM Technician.
410A, & GREEN HVAC/R Technician.
Indoor Air Quality Master Technician.
Working not as to please men but to the Glory of Christ my KING.