Our fridge is was built on 04/09/1998, so a few weeks shy of 24 years ago. It is not cooling very well and I suspect the charge of 134a is low.
I looked on YouTube and wow is there a lot of BAD videos there that either skip steps, or just show bad information and process.
It did help me determine which line is the low and what is the high. The first video show him put on a bullet valve AKA a saddle tap. Then he proceeded to add "Freon" and a line full of air and moisture to the system. He did not purge the line or pull a vacuum.
Most all the videos call the 134a refrigerant "Freon", which is not a horrible gaff, but not accurate.
So I am about to embark on installing a saddle tap, and adding a few ounces of R134a.
I will hook up my old set of manifold gauges so I can connect my vacuum pump and then add a little R134a at a time until it is up to a few psi on the low side. I have to resist the urge to add a second tap to the high side so I can see the real pressures. If it has lasted 24 years, I don't want to add any leak sources that are not necessary.
I want my beer to be cold, so I gotta do it.
