I jumped the low pressure switch and the compressor clutch engaged. I tried to fill the system and it did not seem to want to take any. It was not blowing cold at all. Is the problem the low pressure switch or is it out of refridgerant? If it is out of refridgerant, how the heck do I get it to take some? I hooked everything up correctley, I think, and nothing happened. Any help is appreciated!