Forum Discussion

GaryS1953's avatar
GaryS1953
Nomad
Jul 28, 2025
Solved

No 12 Volt without converter

So my recently acquired 2002 Jayco Qwest 253D fiver suddenly has absolutely no power when not connected to shore power.  Both batteries are showing 12.5 volts, so seem good, but not getting charged b...
Asking for Advice
Electric
Fifth Wheel
  • opnspaces's avatar
    opnspaces
    Jul 29, 2025

    If it was me I would take a picture of all the fuses so I know what goes where. Then pull them all out of the panel. Remove any and all screws and open up the panel so you can see the battery wires in the back. From there see if there is a hidden fuse. You should also see the larger wires that go up to the batteries. Put a meter on those wires and see if you get battery power there.

opnspaces's avatar
opnspaces
Navigator III
Jul 29, 2025

If it was me I would take a picture of all the fuses so I know what goes where. Then pull them all out of the panel. Remove any and all screws and open up the panel so you can see the battery wires in the back. From there see if there is a hidden fuse. You should also see the larger wires that go up to the batteries. Put a meter on those wires and see if you get battery power there.

  • GaryS1953's avatar
    GaryS1953
    Nomad
    Jul 31, 2025

    Open spaces - Your thought was exactly correct.  I’m always a little leery about taking stuff apart before being pretty sure that’s likely where the problem is.  Turns out there was indeed a 30 amp hidden fuse behind the panel.  All good now.  Thanks for your help.

About Technical Issues

Having RV issues? Connect with others who have been in your shoes.24,339 PostsLatest Activity: Nov 29, 2025