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Old 02-25-2021, 12:55 PM   #1
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Join Date: Feb 2021
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30 amp fuses keep popping with house batteries

just recently my two 30 amp fuses keep popping when the house batteries are hooked up. when i hook up to shoreline i get power to plugs microwave and tv but not fridge and ac.
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Old 02-25-2021, 06:45 PM   #2
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Towable or motorhome? Year/make/model is also helpful, and it's not a bad idea to add it as a signature, to speed up relevant responses to your posts.
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Old 02-26-2021, 04:00 AM   #3
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You may have hooked up the batteries backwards- that is, positive cable to negative terminal, and negative cable to positive terminal.

That assumes the 30A fuses are the ones provided to prevent passing 12V DC when the battery bank is hooked up backwards.

The equipment that's running uses 120V AC power, while the equipment that isn't running uses 12V DC power.
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batteries, fuse, house batteries

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