Ac low pressure valve side port
ok, are you saying the low pressure switch indicates. pressure is low?
that is the switch is open? THIS DISABLES the A/C clutch.
state if compressor spins or not, state full symptoms ?
or the gauges, you are using, show low pressure running, with A/.C full blast, ' and compression spinning at full speed?
if yes, and did you read the papers with that gauge?
it tells you how to conduct this simple test. did you?
and shows how to add Freon. (steps)
do not over fill it.