[mechanicalbrain]

THIS IS A UPDATE. No nothing like that. I'm updating for Scott. We know its not the compressor (I got it running on a 9 volt) and its not the spike, battery, fuse, wire, or pressure sensor. The spike is literally not receiving a signal. In fact nothing connected to the relay is getting a signal. I'm wondering if their is a real easy way to test if the relay works. Chances are its not the code because the compressor stopped working after running fine with no changes to the code. Weird fact: we commented out the pressure sensor code and we got a response from the compressor but all that happened is the fan made a twitch (I'm guessing the motor switched polarity) once every second. I'm completely clueless. I tried switching out every part in the electronics but nothing changed!