Twice now, over the course of the past week, we’ve managed to blow the 20 amp spike fuse with the compressor. We’ve triple-chcked our wiring, according to this year’s power distribution diagram. The Spike’s power does go through a 20 amp breaker before it gets to the spike, and the spike is hooked up to a relay. The RC is programmed to run the compressor automatically when the pressure switch, which is wired to a digital input, is released, and turn it off when the switch is triggered.
My first guess is that the spike is bad, especially considering how the plug for the “PWM cable” on the spike itself seemed to be faulty; if I jiggled it a bit, the signal tended to be cut (as in the LED turned off completely, which is only supposed to happen when the fuse blows). We switched out for a different spike, but haven’t really had enough time to see if the problem is fixed. We think it has been, after measuring the current and running it a bit, but I figured to be sure, I’d ask if anyone else can see something we’re not or has had a problem similar.