The other day I was decorating the street in front of my house and the connection between the evaporator and the drier/accumulator came apart.All the juice came out of course and I reconnected the lines and refilled the system.
One thing I noticed after the system was filled is that the compressor never shuts off even when the cold air temp is down to 40*F.
This points to a bad high pressure switchand that follows suit because I think the high revs caused the lines to blow apart at the connection.
Can anybody verify my guess as right or wrong?

 

I went down the street to my friendly neighborhood Ford dealer and talked to the A/C man.He said the continually running compressor is common nowadays and not to worry about it.
As far as the line coming uncoupled,he also said sometimes the lines aren't put together well enough and can just come apart.

 

1 thing to remember is if you just re attached your lines and filled the system you hav about 20% air in the system, to correctly do it you should have pulled a vacuum on the system and then filled it with freeon, this will make the car not build the correct pressure and will cause it to never actually cycle

 

I agree about the pressure. The AC system is a closed system
(Hopefully). and the operating pressure is based on the starting
pressure in the system. When a vacuum is pulled for a few hours
it does two things. Starts the beginning pressure at Negative, and
dries out any moisture that gets into an open system.
As the pressure in the cans is positive your system
will run a little higher causing weak connections to
leak or fail.

Some models of AC have the compressor turn whenever
the AC position or defrost position is chosen. A bit of
a HP drain.