I have a 2010 KW t800 AC compressor will only run if I jumper ac relay. So I'm trying to figure out why ac relay gets turned on from. Just fixed a Oring leak, fully charged both high and low pressure switches are made. Just something causing ac clutch relay not to cycle. Thanks
This might help, sounds like your low side switch control (relay ground ) that runs through the pressure switches and freeze switch is not working, try jumping one or the other pressure switches at the heater box area, easiest to test first.
