Quote:
Originally Posted by mike240dds
I went ahead and ordered a new receiver/dryer, pressure switch, and expansion valve. I have a package of A/C O rings. I figure I may as well replace them since the system is going to be opened up. I plan to blow out all the lines as well. Hopefully my parts will be in tomorrow so I can get started this weekend. Hopefully everything will go without a hitch, then I need to figure out whether to keep the 134a setup or go with r12.
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The pros suggest using Nylog on those o-rings of the proper color for the refrigerant you are using. It is cheap and you do not want to take any unnecessary chances on having to redo this tedious operation.
You need to flush the lines.. not just blow them out... particles get embedded in the oil on the inside of the lines...
Given where you live....and how much trouble this operation is... and the relatively low cost of the BEST refrigerant ... I suggest you go to R12...