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gogereaver
Explorer
May 07, 2015

1983 toyota house battery not working

hey guys i got a 1983 toyota motorhome having a odd issue with the house battery basically unplugged the rv is not switching to battery power. plugged in dc power is working fine and the system sees i have a battery connected because it will not work if i disconnect it. the battery is brand new.
  • What sort of converter/charger do you have? Some had a sort of transfer switch relay arrangement for some of the DC circuits that would power them from the battery when the converter is off and directly from the converter output when the AC is on. (There's a separate lower current charger output on these units typically.) If that relay were bad or sticking or something it could cause the problems you're seeing.

    I think some also had a manual toggle switch for the same purpose.
  • There should be a 30A fuse to protect the battery. Find it, check it. Probably open.