limycenter Posted November 16, 2022 Share Posted November 16, 2022 Hey Everyone My Problem: House does not have working 120V or 12V when plugged in or on generator until I short the batteries together with ignition on at the dash switch. When i hit the switch with the ignition on, the inverter will kick on/pass 120V to house along with DC to the 12V system So my thinking is the fuse connecting the inverter to the house batteries is bad......but that might be another squirrel that I am chasing. I can't find the big fuse that connects the house batteries to the inverter. went to leave camp and coach wouldn't start (was plugged in, charger was in float mode) finally got started and inverter was reading .5V on house batteries so wouldn't invert batteries read 13.4V at the battery (I installed lithium 2 years ago) in rear fuse/relay box, the house batteries are not making it to the box Arrive at new destination and plug 50A into shore power but don't have 120V on the other side of the inverter side (inverter/charger won't pass the 120V) and charger won't supply DC i am able to "kick-start" the inverter by shorting the chassis to house batteries using switch up front when the ignition is ON.....EVERYTHING WORKS, 12V and 120V gets passed through the inverter. All is good until i lose 120V power then i have to kick-start the system. The house batteries are NOT getting charged I assumed that the battery disconnect switches were bad and replaced them after lots of screwing around ..... they are in a painful to replace area and hard to acquire since they are 4 post and wired in a unique way Stock inverter (was replaced 3 years ago right before I bought) but its still the stock model 3K Magna (NOT HYBRID) House batteries are good, inverter IS working ---- I unhooked the inverter from the coach and direct connected a battery and it worked (started charging the batteries) Link to comment Share on other sites More sharing options...
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