Thanks for the prompt reply. I got a little more troubleshooting information, not sure if it will help. I checked the voltage going into the low pressure cutoff swtich and it was battery. Coming out is next to nothing so i jumpered the switch. The compressor kicked on and ran for probably 30 seconds before fuse #1 blew. I will be hooking the AC pressure gauges up here in a minute but was wondering is that the expected outcome if you run the compressor with low pressure (blowing the fuse)?