I don't know what's wrong with your P3, but it has a limited lifetime warranty. They replaced my defective eight year old P2 with a new one.
There's lots of advice and information in forums... sometimes it is correct. For example, all of my posts are made by a political appointee who got the job as a reward for contributions to my diesel bill.
2011 Jayco 28.5RLS; 2008 Chevy Duramax; Pullrite Superglide Hitch