View Single Post
Old 08-03-16, 05:01 PM   #16
Lex Parsimoniae
Xringer's Avatar
Join Date: Feb 2009
Location: Woburn, MA
Posts: 4,872
Thanks: 106
Thanked 245 Times in 225 Posts

I can't find the high-side port. It's either really inaccessible, or doesn't exist..
I think my HVAC buddy might have a scale that could measure out a 23 oz (1.4375 pound) charge..
Not sure if he has a recovery unit for R410a..
Anyways, maybe bringing up the low-side to 80 PSIg could get it working right.

As to the leak.. When I wanted to remove the low-side port cab for inspection, it was on there like it had epoxy on it..
I had to rig up a low table to brace the tube-side wrench, while I unscrewed the cap,with a socket wrench..
No rubber gasket inside, but it doesn't seem like a leaking Schrader valve.
But, I replaced the cap with a new one (w/ a gasket), just in case.

If it's a pinhole in one of the HX coils.. I'm not sure how to even find a leak
there, much less repair it.. Have to do some reading!
My hobby is installing & trying to repair mini-splits
EPA 608 Type 1 Technician Certification ~ 5 lbs or less..

Last edited by Xringer; 08-03-16 at 07:26 PM..
Xringer is offline   Reply With Quote