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ricelake922's avatar
ricelake922
Explorer
Jul 26, 2018

DC not working

I have a 1996 Monaco Dynasty. On 3rd day at a park plugged into shore power. Everything was working well until last night. Disconnected TV at electrical (pulled the plug) and lost DC power. No interior lights and fridge stopped working. Coffee maker still works thank goodness. My heart interface is showing that I have an overload. When I turn the heart interface oif and then back on lights work but within 30 seconds the lights go back off. Same thing happens when I turn off main breaker. Checked house batteries and they are showing great voltage and a good load. Went to inverter and hit reset with no change. Turned inverter off and on with no change. Please help! Thank you in advance.
Class A

6 Replies

  • joelc's avatar
    joelc
    Nomad
    Jul 27, 2018
    I have a 5th wheel and had a similar problem one time. Check to see if you have a in-line fuse. It should be after your battery on the cable that goes to converter. Mine was hidden in the wall about 2' after the battery.
  • MrWizard's avatar
    MrWizard
    Moderator
    Jul 26, 2018
    your coach Dc aka batteries power the inverter
    Your TOAD, had nothing to do with it
    Unless your RV batteries are dead and you were actuAlly running the RV from the toad battery, without knowing it
    You have shore power?
    No
    Then start and run your generator for a few hours
    It sounds like your house batteries are low, turning on the invert function pulls them down and everything shuts off
  • Yankee_Clipper's avatar
    Yankee_Clipper
    Explorer
    Jul 26, 2018
    Your coach DC should be running off the inverter.
    Bad actor candidates include the inverter, battery disconnect switch, and the house batteries. I'd start with the battery disconnect switch first and then the batteries.
  • Sam_Spade's avatar
    Sam_Spade
    Explorer
    Jul 26, 2018
    What is "TV" in this context ? Tow vehicle.....television....????

    Someone didn't accidentally hit the battery disconnect switch, did they ??

    And what is a "heart interface" ??
  • donn0128's avatar
    donn0128
    Explorer II
    Jul 26, 2018
    Bad battery. How are you checking your batteries? Its entirely possible you have a bad cell and your entire battery bank read good on the cheezy built in gage.
  • 2oldman's avatar
    2oldman
    Explorer II
    Jul 26, 2018
    ricelake922 wrote:
    Disconnected TV at electrical (pulled the plug) and lost DC power.
    I don't know what this means, given the usual definitions of tv.

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