I would contact a customer service rep at Keystone and inquire. I would say they will at least help with the repairs. If still under factory warranty they should repair no problem. If you bought from a dealer I would start there. Good luck.
It is common we are finding for this to happen and they don't tell you when you buy. There is nothing Keystone is going to do for you. It is up to you to monitor tank levels and the usual gauges suck. Just more of the realities of buying an expensive device with no standards or oversite by any licensing agency.