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Imbriaco's avatar
Imbriaco
Explorer
Jan 01, 2019

Electrical disaster - near miss

08 Keystone Montana 3400

We were definitely lucky, and I think our Progressive Industries EMS-PT30X prevented worse damage. Here's the chain of events, although I'm not completely sure what caused what

1. Vacuum valve for black tank flush busted (keystone put this one in the pocket door about 6ft high) and water cascadsd onto and in the converter (that Keystone mounts unter the stairs). I thought is was ok and dried it out but left it plugged in.

2. next day, everything worked in the am. Came home in afternoon and no power to trailer. Check EMS unit and it was flashing normal codes except a PE code (I think it was for high voltage). Also noticed slight burning odor

Microwave outlet not working either.

Bypassed EMS unit (dumb move in hindsight) and power restored.
Noticed water in EMS unit, drained it, plugged in back in and would not work.

Replaced dead converter and Progressive Industries is sending a replacement unit. BTW, PI said that may be the reason for the EMS failure. Everything back to normal finally but no microwave outlet.

Troubleshooting that and we find the fried connection under the trailer, before the wiring enters the slide-out.

Questions - where do i source a replacement connector? Opinions on what caused what? Possible that wet, fried converter knocked out the microwave line and that killed the EMS?

14 Replies

  • Black tank flush systems seem to cause more problems than they prevent.
  • rhagfo's avatar
    rhagfo
    Explorer III
    byronlj wrote:
    I would put a waterproof j-box under the trailer and connect your wires in that.
    Dave


    X3!
  • I've seen those connectors fail and would not replace it with a similar part. As said above, make your connection in a junction box instead of using a part that only exists for convenience and speed on the production line.
  • I would put a waterproof j-box under the trailer and connect your wires in that.
    Dave

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