Ugh... I'msuspicious (and worried) when multiple people report their units have the "issue". I always hope the manufacture's tech people will say, "Yes,we've had multiple reports on this issue and here's is where to start." Instead, many times youhear "We'venever heard of that before. You need to start at Square One - like yours is the first unit to havethisissue."
If it turns out that itactually isan 'internal seal bypass' issue somewhere in the system, that sounds like it will be along, difficult diagnostic & resolution. This is a major problem that might bean issue on all ourunits.
2012 36RL, Disk Brakes, G614s, Trail-Air, Onan, Splendides, Fisher-Paykel, Sleeper, Winegard SK-3005HD
2012 GMC 3500HD CrewCab 4x4, Dually, DuraMax, Allison, Reese Elite 18K, Titan Tank 60 gal.