[in2steam]

Sounds like your coolant charge is starting to drop, given the age of you E that is mostly normal. A/C is not something we can even legally work on in my state without several licenses.
The compressor should cycle at intervals, if your charge is low it will cycle just quicker or not turn on at all.
Chris

 

[in2steam]

This is blatantly wrong information. A/C systems are closed systems and should NEVER need routine charging. If the system is low on refrigerant then there is a leak in it somewhere and that is never normal.



No Element has or uses "Freon".

Freon is not synonymous with refrigerant.

(Sigh)
We are at best taking educated guesses based on the info provided.
At 6 years plus I would hardly call a small amount of leakage routine, I work with commercial A/C systems every day they can leak alot. I also worked automotive systems for about 10 years as parts man. NO system is pefectly sealed and in time will leak, automotive systems are far from tight and use O-rings or gaskets all over the place. Yes its true that more then likely there is a leak, and in at least in my state you cannot release a vehicle without finding and repairing the leak, or pumping down the system which renders it inoperable. Freon(R12 or R22) is a loose term, R134a is the proper term, but Freon is used by shops as a way to say coolant. Just like I say ammonia at work, its not really ammonia its anhydrous ammonia for coolant in the current systems I work with.
A high or low charge will cause the compressor to cycle abnormally, its hard to say without a manifold hooked up. The only reason I went with low charge is that it works better on recirculate, if high psi cutout was the problem it would not likely work at all with recirculate. But that is speculation only, the other posters thoughts and experiences are solid and respectable.

Chris

 

[in2steam]

I think the state of Wisconsin is still the worst to work with. We have totally separate tests, the EPA test is pretty easy. For commercial they will not even let you take the test unless you have at least two credits in a recognized tech school. Its really a joke, I have A/C experience and one class with heating and A/C for maintenance men, I trouble shoot them all time, but I cannot crack the system legally. Since I now only work with 512 its not such a legal thing, more of a safety thing as that can make a small fire real nasty real quick.

In any other state I could and have worked with cars, here I cannot. I do have a license to buy or sell Freon or R12, for what ever thats worth, but I cannot actually put it in the system. The legal aspect of it seems to have diminished some, since most of the cars on the roads these days are r134. I do remember when I was working in parts that several dealers in Florida were made examples of by the Feds, back in during the Clinton years. The fines were in the hundreds of thousands of dollars.

Chris

 

[in2steam]

That must be nice to be able to buy it at Walmart, we have nothing here.

Chris