09-18-2019, 11:11 PM
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#7
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Senior Member
State: Arizona
Posts: 408
THOR #7580
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Quote:
Originally Posted by Beau388
Low voltages on the jacks is indicating either the house batteries or chassis battery or both are below 12.7 volts. With the engine running and the store/use switch in the use position (master power on) after 4 minutes, both batteries should be reading above this 12.7 volts. If the voltages are low you could have a bad BIRD or BIM. As a temporary work around, you could start the generator and run it for around 4 minutes, then trying to low lower the jacks. If no low battery indication. then you know the alternator is not charging the house batteries. If you still get a low voltage with the generator running, I would guess you have a chassis battery going bad.
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What is a BIRD and Bim?
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