Air Compressor cycles between 110 and 120 psi while cold

Strange problem with compressor since it got cold in the midwest. When starting a cold engine compressor cycles between 110 and 120 psi. Governor is new as is the compressor and dryer. This happens only until engine warms up and gets back to normal 90- 120 psi. Any test I can perform before taking compressor head apart. 2006 ved 12

 

I dont believe its normal, just because it has not happened before. Also 10 psi drop in 20 seconds is definitely not normal, as well is a DOT violation. Thank you for your answer, but a new governor doesn't fix the problem. Sticking valves in the compressor head is my best guess. I hope I didnt spend $1800 for a garbage compressor sold by dealerships. Yes, I know its under warranty but its a hassle to deal with, and involves spending time and money.

 

Noticed that problem occurs also when AC is on and truck is stationary. Any ideas if that has to do with fan solenoid.

 

Thanks but already did

 

Still having the same problem. Any ideas would be appreciated