help with viair dual 480

I've been running the dual viair 480's for about a month now with fast fill times and no problems. now this morning they don't want to build up any pressure. it takes a real long time to build pressure. I checked for air leaks and drained the tank to see if there was water in there and everything was good.

I left my 380 hooked up as a spare so I can still drive it, but any ideas?

anyone else ever have any problems with their 480's?

check your voltage off the relays and check your grounds..

we just installed a dual pack of 480s on the shop truck, and im hella impressed by the fill times... may wanna check your relays if you know for sure you dont have any leaks in your system, how do you have these compressors mounted?