[switch monkey]

2014 f350 Compressor is being commanded off and back on continually. AC high pressure reads normal when running on a guage set. 105* day (Phoenix) guages read 40ish and 325ish (trying to remember exactly what they read). Biggest issue is at the same time Autoenguity shows 625ish on high pressure gauge. Even after an sitting for a couple days, high pressure switch on scanner shows 375psi with engine off! Gauge shows somewhere around 100? Have replaced high pressure switch as I figured that was the issue. New switch shows the same readings.

Have a new gauge set coming today to back up my old guages to ensure that is not the issue. Can understand why such a high reading after sitting for day and why such a disparity between guages and 2 different switches? Any other ideas?

 

[switch monkey]

To close the loop on this issue:
Wasn’t the switch. It was Autoengunuity. Autoengunity says 335-375 PSI resting (off overnight) and from 625-725 running. WAY OFF!! Hooked up Forscan (WAY better program & less than 25% price) and Forscan agreed with my manual guages within a couple PSI. Can see way more/better information & 100% better User Interface with ForScan. Within 10 mins of having Forscan up & running I can see that it’s an issue with the Evaporator Temp sensor dropping below 34* F and kicking off the compressor.

Been using Autoengunity for years. At this point- can’t see me EVER using it again. Forscan has it beat hands down!