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Old 11-17-2022, 07:12 PM   #1
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Location: St. Petersburg, Florida
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No 12 volt power inside the coach

We noticed that we had no lights on the 12v side inside the coach when we went to leave on a trip, the inverter was tripped, I reset it and everything was fine. Left our campsite and went to Savannah, once we settled in all 12v power inside the coach went out. The only way to get the 12v back on is by starting the coach but once I shut it down the lights and control panels shut off as well. I spoke to Magnum inverter representative because the inverter is showing 9.2 V on the remote but checking my remote battery panel says I have 14.2 V. Does anyone have an idea or thought what can be wrong or where to look, we would hate to leave and go back home but sitting in the dark in the cold is not much fun. I appreciate any feedback. BTW the coach is a 2010 Fleetwood Discovery 40G. Thank you, John
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Old 11-17-2022, 07:23 PM   #2
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Is the electric water heater on?
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Old 11-17-2022, 08:46 PM   #3
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Seems like a silly suggestion, but did you check your use/store battery disconnect? Also check the breakers in your battery compartment.
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Old 11-18-2022, 07:01 PM   #4
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check the main battery breaker in the compartment.
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Old 11-19-2022, 04:40 PM   #5
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Thank you everyone for your input, I have checked everything and traced it back to a broken connection at one of the batteries, it went undetected due to another connection on top of the broken one. I also had a 300 Amp fuse that goes to the inverter blown, I carry a spare fuse and had a cable made locally. My only issue now is my Magnum inverter will not reset, I tried soft and hard reset but the remote is throwing me a code that is not listed. At least my 12V systems are back and running and I should have no issues getting back to Florida where i can get the inverter checked/repaired. Thanks again for everyone's input! John
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12 volt, power

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