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Old 05-27-2013, 11:36 AM   #1
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2012 25' FB Flying Cloud
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Help! After storage, no battery power but Monitor shows green

Hi,

I just got our 2012 25FB from storage. It had been plugged in off and on over the winter (for furnace), but has been unplugged for the last couple months.

The hitch jack didn't work, even after I plugged in shore power. But, when I plugged it into the truck, it worked. While on AC power, I checked the monitor panel, and it showed green for the batteries, which are clearly dead. Also, the charger did not come on while on shore power.

I have taken the batteries out and they are being charged now. When I check the monitor panel (with shore power connected and no battery) it shows green! Since that is the case, I figure there is something wrong with the batteries or the monitor and charging system.

Any input GREATLY appreciated since we need to use it this coming weekend!
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Old 05-27-2013, 12:52 PM   #2
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You say the batteries were clearly dead. Did you try any twelve volt systems other than the hitch jack with shore power unplugged? Did you check battery condition on the monitor with shore power unplugged? The monitor is reading converter voltage when it is active.
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Old 05-27-2013, 01:01 PM   #3
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Dave, I tried the lights and the fantastic fan, and they worked. I have some recollection that the jack is wired directly to the battery, but I may be wrong about that. I didn't try anything else. I did not check the battery condition with shore power unplugged.

The other thing is that the on-board battery charger did not kick on, and I had it plugged in for about an hour.

The other thing that didn't work was the battery cutoff when I tried to switch from Store to Use with Shore Power disconnected.

I'm *hoping* the batteries were just so drained that it caused all the odd behavior, and it isn't something more.
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Old 05-27-2013, 01:11 PM   #4
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I suspect your charger was working during the hour you had it plugged in, but it wasn't hot enough for the cooling fan to come on. If the jack doesn't work when you get the batteries back in, check the fuse holder. On my trailer, the fuse holder gets under the propane tank cover when I fill bottles, and it disconnects the fuse.

For long term storage, consider either removing your batteries, or disconnecting the common ground to keep the phantom load from running them down. It only takes a couple of weeks for them to go flat. Another solution would be to install solar.
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Old 05-27-2013, 03:08 PM   #5
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I agree with Drathaar that your converter could have been working. Only way to tell would be to connect a meter.
You're right, the jack is connected directly to the positive post on the battery and grounded to the frame.

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I don't think the jack would work connected to the TV of the fuse is blown, but it is always worth checking. I blow that fuse at least once a trip.

Hopefully with a full charge the other gremlins will fly away.

I also agree if you won't be using the trailer for awhile that you disconnect the ground at the batteries.

Good luck.
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Old 05-28-2013, 05:30 PM   #6
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Thanks for the replies! I charged the batteries and the jack worked fine! Hopefully all Gremlins are gone!
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Old 05-28-2013, 11:13 PM   #7
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Quote:
Originally Posted by barrettjl View Post
Thanks for the replies! I charged the batteries and the jack worked fine! Hopefully all Gremlins are gone!
Remember that the phantom load will pull the batteries down in about twoish weeks or so. Either put a trickle charge on, or disconnect ground to keep it from happening again. I am glad things worked out.
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