Can't Get Compressor to Run

[ColonelThrtyTwo]

Originally Posted by Mark McLeod

How do you have the pressure switch wired?
It should be signal & ground, the outside wires of a PWM cable, no power.

Yep

Originally Posted by Mark McLeod

To bypass it you can short across the pressure switch terminals. The compressor should turn on then.

Doesn't seem to work. The switch seems to be closed normally (without pressure), so shorting them wouldn't do anything afaik.