low side service port

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dolphins1131
Posts: 15
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Joined: Sat Jul 08, 2017 9:03 am

low side service port

Post by dolphins1131 »

every time i remove the service cap on the low side its tight like pressure builds up
it has green residue on it
and it appears to have a black ball for the inlet valve????? is this normal

the high side appears normal
Dougflas
Posts: 379
Joined: Mon Apr 18, 2016 6:10 pm

Re: low side service port

Post by Dougflas »

Those ball type "shraders" are known for this. The caps are the primary seal and the shraders are the secondary seals. I would not worry about it.
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