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mark1967usaf's avatar
mark1967usaf
Explorer
May 13, 2014

No 12VDC

Hello! I have a 1998 Winnebago Chieftain 36WL Diesel Class A. I have no coach power. It worked one day then nothing. I checked my batteries, no voltage. I plug in with shore power, nothing. I disconnected my inverter/converter to install a Dinette. How do I hook up the inverter/converter, not sure what it is. It has a Red and White wire going to my battery. I consider myself mechanically inclined (20 years in the Air Force as a mechanic) but I am stumped. What can I check? What explains the no shore power? If it is the battery disconnect switch, how can I check it? Sorry for the questions..just providing plenty of symptoms :) Thanks so much! Mark

One more thing..If the battery disconnect switch fails, will it eventually drain the coach batteries?

Please help, I really don't want to take it to a dealer!

Once I fix it, I will immediately post what the problem was :)

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  • camperpaul's avatar
    camperpaul
    Explorer
    May 13, 2014
    The inverter/converter is a dual use device.

    When in converter mode, it converts "shore power" to 12Volts DC and charges the battery.

    When in inverter mode it makes 120Volts AC.

    If you are measuring zero Volts at your batteries, you have destroyed them and you will need to replace them.

    You will need to connect the I/C to the battery. Before doing so, measure the output of the converter to determine the correct polarization.

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