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fullydeuce's avatar
fullydeuce
Explorer
Dec 13, 2017

12V Electric Issues - Inverter?

Hi Everyone,

I am new to this forum and fairly new to owning a recreational vehicle. We purchased a 5th wheel back in May of this year and have been living it ever since. We plan to live it for another year or so until we complete construction on our house. We live in Calgary, AB, Canada and have winterized the trailer but have lately been having some electrical issues..

When the furnace fan is kicking on, the lights will dim and sometimes kick the fan off. The odd time, power to the 12V system will completely stop (no lights, fridge, furnace, etc.).

I checked all the 12V fuses and none are blown. If I switch the battery disconnect to on and back to off it will fire the 12V system back up...

Could this be a sign the power inverter is going?

If anyone is interested in seeing our trailer setup we have some posts about it https://www.hidenseekglobal.com/tiny-home-living

22 Replies

  • Hi,

    Probably by now the OEM battery is toast. Do check to see if the voltage at the battery goes UP when the switch is in the "on" position.
  • Battery disconnect needs to be ON. Off you are probably stopping the battery from being charged. Everything your describing indicates dead battery.