Anyone ever have trouble with UP-3 valves?
I had mine all set up working just fine during my build. Then after just sitting on the bench for a few weeks, I went to cycle and double check the operation of everything, when I found the gear doors on one side won't close. But they open ok. Nothing was changed, No air leaks or line pinches. I'm guessing a piece of dirt may have got stuck in it somewhere.
Can these things be taken apart easily and cleaned out or does one have to send it back in?