HWH Jacks won't go down

Dachristianman wrote:
I took my daughter on a nature walk while I pondered motorhome ownership. When I returned, the power to the panel lights up. Strange thing is that when I open one of the T-handles and try to extend the jacks, the power to the control panel dies. There must be an internal breaker, because I can turn the power off and back on and everything comes back on. If I try to extend the jacks without the T-handle open, the pump will run but nothing happens at the jacks. The HWH manual says that if I have 3500 psi at the manifold, then it's the shuttle valve. I have no way to check to see if I have pressure, but since the slide operates, seems like their should be pressure there. Either way, I think I'm getting it narrowed down.

Tom

At each solenoid is a 2 wire quick connect. DISCONNECT that wire to the solenoid you are manually opening and retry. There is NOTHING that should cause a fuse or power outage, by opening the T handle, unless THAT solenoid coil has an internal short----BUT--- each solenoid is fuse protected. Each solenoid has its own fuse. THAT fuse would blow instead of the whole system. Now, Have you checked the 2 solenoids mounted on the HWH motor at the pump for the battery cables and nuts being tight and secure? Also, check the cable from the 12 volt motor to the activation solenoid. See if it is loose and wiggles AT the motor cable stud. IF it is loose and wiggles at the motor cable stud, the motor is burnt out internally. Doug