Forum Discussion

GeraldZ's avatar
GeraldZ
Explorer
Jan 30, 2015

Cabin power goes out on its own

Good morning. I have a very weird yet serious problem with the power in my cabin. From the start, please forgive my lack of knowledge and the proper lingo. I am new and learning as I go.

I live in my 2003 Jayco Granite Ridge in Central Illinois. Doing good through the winter so far, with the exception that my power goes out by itself quite a bit. This requires me to press the battery disconnect button to reset the power in the cabin, just inside the door. When I press that button, there's a beep, the green light indicator comes on, and the power kicks on.

The problem is that it always goes out when I am gone or asleep. Yesterday, the power in the cabin went off while I was at work. As I walked up to the door, I heard the the beep as if someone had pressed the button and the power kicked on. (I live alone and the door was locked). I woke up this morning with the power out and I had to press the button again to reset it. The power going out and me having to press the button to restart the power has happened on at least 6 occasions so far since I moved into the RV in October 2014.

This would not be a problem during the warmer months. But, the power going out in the winter can get a bit chilly. It was 40 degrees in the cabin last night when I got home from work.

I have 30 amp service and am connected to shore power. I have heat tape and a heated water hose, both of which are plugged into a dedicated electrical power source. So, no issues there.

Question: What would possibly make the power in the cabin go out on its own and how can I fix this problem?

Thank you in advance.

Jerry

4 Replies

  • DrewE's avatar
    DrewE
    Explorer III
    I would check out the disconnect switch and the wiring from the switch to the actual disconnect relay. Maybe there's some chafing or something causing it to periodically short out and flip the disconnect.

    (Typically, the switch by the door just activates solenoids in the actual disconnect relay, which is located either near the battery or near the converter/power center.)

    With the unit connected to shore power all the time, even a pretty marginal battery should be sufficient; it doesn't really need to store any significant amount of power, just smooth out the output of the converter.
  • Hi,

    There may be an automatic circuit breaker. Sometimes as they age they begin to fail.
  • Thank you, RVServiceManager. I will do that. Thanks again.
  • Jerry,

    I would start by checking the condition of you house batteries. Make sure the cells are full of water and have them load tested. The symptoms you describe are related to your 12v side of the coach. If the battery/batteries are good then I would replace the battery disconnect solenoid. This would be the only other item that could intermittently shut off you 12v on it's own.

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