Vacuumed it down, charged it, compressor not kicking on. New compressor was put on by me, oiled, new o rings. Vacuumed again, no leaks. Takes some refrigerant then stops taking it. Voltage at the compressor. Pressure switch works. The guy that did the vacuum said he thinks its taking some refrigerant up to the receiver drier/ accumulator then stops there. He thinks its plugged. Is that a possibility? Checked relay and fuses too. Even jumped the relay. Fans will kick on after taking some refrigerant but it will just stop taking refrigerant. Any ideas? I'm not an ac person as this is my first experience with it and have no idea what else it could be. Expansion valve? I don't even know where it is located! Any help please!