Quote:
Originally Posted by 80stech
What were the gauges reading before you turned the valves down ?? It sounds to me an awful like you are not reading the actual pressure in the lines and the system is actually too low to let the compressor activate.
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Zero.
then after opening the low side and the low gauge went to 83, I vented it back down to zero and did the same to the high. Then treated them like normal and opened the quick disconnects and read both sides at the same time. Then used INPA to activate the compressor with no change to high or low. No bottle attached at the time.
I do appreciate the help, but I have been working on AC units in cars for 30+ years. Just not the BMW systems. Normally I would have just jumped the pressure switch and looked at my levels.