Originally Posted by dojj
the glass panel is there to show that there is clear gas in there
the more milky it gets the moer water it has in the system and then you need to change stuff voer like the recyver/drier
we have our vans serviced every few weeks and the fridge guy tells us all sorts of stuff, obviously not as good as first hand experience from forgirnrs mind
obviously not, as the sight glass is to check for liquid, not gas
it's just a visual check that there is enough refrigerant in the system - not enough and there will be gas bubbles visible in the liquid as it will not get sub cooled enough in the condenser. oil is carried with the refrigerant as well