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Old 11-08-2022, 02:05 PM   #1
N2BchMtnMrsh
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Fusebox Audio Alarm

After returning from a trip in early October, we put our 2012 3750FL in storage. We went out today to Winterize it and the batteries are totally dead. So I hooked up my car, via jumper cables, to one battery and then heard an alarm sound. After checking, it was coming from the fusebox, blocked by the dining room slide out. I turned the DISCONNECT key when I put it in storage but I guess there are certain systems that bypass the battery disconnect.
So my question is, what would cause an audible alarm to come from the fuse box? I never knew there was an alarm on a fusebox.
I stopped at Costco and they have my battery, which I need four, so I plan on installing new batteries and trouble shooting as well as winterizing? Does anyone have any idea what I should be looking for? I am BAD at trouble shooting anything electrical. Between my solar charger, the inverter, fuses, lights, etc..., I feel like I am trying to do brain surgery when I trouble shoot. Thank you for any guidance you can give me.
 
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Old 11-08-2022, 02:37 PM   #2
N2BchMtnMrsh
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Another thought, if I could find the problem with the fuse box, could the solar system recharge totally dead batteries? Or is replacing them the better idea?
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Old 11-08-2022, 02:48 PM   #3
Carl n Susan
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The disconnect switch with the red key in the convenience center does *NOT* disconnect all the 12V. There are several parasitic 12V devices which are exempt and will drain your batteries. The best solution is to disconnect the negative cable on your batteries. This will ensure they are not drained in storage.

I have no idea how your solar is wired and what it can do.

The beeping sound might be from your propane detector due to low battery voltage. You will have to get the slides open and identify exactly where the beeps are coming from.

As for the batteries, you might be able to charge them up. They may not be as strong as before, but should work to get the slides out.
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Old 11-08-2022, 06:56 PM   #4
N2BchMtnMrsh
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I thought about disconnecting the ground cable but would the solar panel still charge the batteries? I think it would but not sure. There is no propane detector, I removed it last year, bought a new one and it did not work. I have not bought a new one yet.
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Old 11-09-2022, 11:11 AM   #5
Foldbak
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Quote:
Originally Posted by N2BchMtnMrsh View Post
I thought about disconnecting the ground cable but would the solar panel still charge the batteries? I think it would but not sure. There is no propane detector, I removed it last year, bought a new one and it did not work. I have not bought a new one yet.
If you disconnect the ground wire then the solar wont charge the batteries. The beep is most likely a low voltage alarm. Charge or replace your batteries. Was your inverter on? Do you have a residential frig? If yes then that's your problem. If the inverter was off then you have another system draining your batteries.
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