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Old 08-09-2018, 09:35 PM   #1
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2015 30' FB FC Bunk
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No battery power.

So excited to fix this one. Electrical is my worst subject, Grandfather was an electrical engineer so I need to step up.

Everything works fine on shore power, nothing works on battery power. Batteries are fine, not only are they good on the meter, but the electrical tounge jack works fine.

There is a break in the power from the battery to the panel, first I thought it was the inverter so I went looking and I found an atrocity of a wiring job under the Master Bed in the storage compartment. What’s in that rats nest of wiring? The wiring coming out of the inverter is disconnected, fell apart in my hands...

So I am plugged into shore power for the weekend, would love to get this fixed...
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Old 08-09-2018, 09:38 PM   #2
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You haven't mentioned your store/use switch (usually right by the entry door, but I don't know where the switch is on your trailer.) When you rock the switch you should be able to hear a distinct click of a relay. Do you hear anything when you cycle this switch? It's an electromechanical relay, so it may simply have failed in the "open" state. If that's open, nearly everything inside your trailer will NOT be energized by the batteries, but WILL get power when you're on shore power.
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Old 08-09-2018, 10:17 PM   #3
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The relay that is controlled by the switch may have a loose connection. Happened on mine. You will find it among the rats nest. Dave
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Old 08-09-2018, 10:32 PM   #4
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Shouldn't be hard to fix
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