Compressor - New GX CS4 Performance Issues!

Unfortunately, I have joined the ranks of a poorly running CS4. Got about 4 good hours out of it, now it won't go above 2350 PSI. I seems to load up and barely run the piston? in the compressor before it turns itself off. Has anyone ever gotten/found a manual for these things?
I had a very slow fill issue with my GX CS4 taking more than 3 times as long to fill. When it got to around 2,000 PSI it was sucking canal water and struggling to the intended fill. I was about to give up troubleshooting it and after contacting GX customer service they replied back with a few instructions to correct my issue. And, it worked like a charm I am now filling faster than my original deadhead tests when I received the compressor. This is what GX responded to me with and I encourage you to also try these steps.

GX representative response to me via email:

"1) Hello please check if there is leaking carefully first. Include whole hose, bleed valve, burst disc and so on. It mainly was caused by leaking. It is easy to fix. keep the bleed valve tighten, watch pressure gauge and if it drops quickly? then it means it's leaking.

2) If there aren't any air leaks, another possibility, see if compressor runs hard when reaching to 200 Bar or 3,000 PSI? if yes, follow this video to run it for about 1 hour.


you can connect test plug, keep bleed valve tighten, excess grease or dirty will come out from check valve (under burst disc )

3) If still can not solve, water washing , follow this This should surely can solve the problem."



Step 3 above is what corrected my performance issues. Good luck.
 
Success!!! Water washing did the trick. Big bottle and Notos are back in action.

Thanks to everyone for your suggestions and your time!!!!!!!!!!!

A question: Would it be worthwhile to create a section with all the problems and cures for each particular air gun, compressor, etc? I did a couple hours of reading and hadn't stumbled across either of these cures for the CS4. For example, an Umarex section with all the problems and cures listed for the Notos in one section, another section for the Zelos kind of approach? A go to center for problem solving for all the products that we collectively own. Might make it easier and less repetitive for issues that continue to pop up every time a noob like me joins the group.

You guys with all the experience could spend more time shooting and less time answering the same questions over and over.

Either way thank you.

Or, I could just be an old fart with too much time on my hands