Hummer Forums by Elcova - Factory air question

I have an 03 with what I assume is the factory compressor, I bought it Jan 2011 with 48k miles, he just turned 97k a few days ago.

My air bags were replaced a few weeks after it was bought, and for the most part has always performed flawlessly. Every now and then it has two problems, both seemingly completely seperate of the other.
Rarely it will ride at increased ride height, I measure base drive level by spacing my pinkie and thumb extended from my palm, its exactly the same length. So I can tell both by look and makeshift measurement. This is rare an doesnt bother but I figured I would add it for my sake.
But also it has randomly had the message come up on the DIC saying to service the air suspension, my fix has always been to simply restart the truck, works great haha. Recently it has done this increasingly more frequent, been about 5 days since it last happened, but happened several times that day.

Finally the big scare was made when I was using the rear air to test how well it could blow up a small pool toy, I noticed the air coming out had a lot of condensation.
Obviously the compressors life isn't long if its unable to continue functioning correctly, the system has a drier for air but I'm assuming 11 years of service has done a number on the compressors life. The intake vent filter is unavailable as a single item, it has to be bought with the vent lines at about $60. The drier I haven't even looked at availability but I feel fairly competent it's unavailable.

Ideas on the DIC message as well as suggestions for servicing the compressor setup.

If it goes out, springs are going in without second thought, but it would be nice to keep the air for however long is possible.