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Old 03-29-2016, 07:41 AM   #1
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2011 27' FB Classic
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Solar Panel Fuse

On my 27' Classic, where is the factory installed fuse located? What is the correct size fuse as well.

I did a forum search without luck.

Thanx in advance.
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Old 03-29-2016, 01:55 PM   #2
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the controller fuse it located on one of the leads off of the controller which is near your 12v breaker panel. i'm not sure of the size so you;ll have to look at the fuse.
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Old 03-30-2016, 04:06 PM   #3
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Ok Thanx. I'll let everyone know exactly where I find it. I'm thinking under the forward curbside bunk next to the batteries and the solar controller black box.
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Old 04-03-2016, 03:26 PM   #4
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Still haven't found the fuse but the controller small black box with led battery condition lights is under the starboard forward bunk with the inverter, right near the batteries. The yellow wire goes to the controller and a green one attaches to a bus bar. A RJ45 connector and cat5 wire goes to the wall display. Could the fuse be on the battery side of the circuit rather than between the panels and controller?
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Old 04-05-2016, 09:24 PM   #5
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i have a red wire that has an inline fuse about 8" off the black box.
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Old 04-05-2016, 10:26 PM   #6
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Airstream places fuses AT THE PANELS! They are located within the black junction box that is bonded to the underside of each panel. The ones I have removed had a green fuse holder with an ATO fuse and IIRC, was 10 amps.

yes, you WILL have to remove the panels to access these fuses.

They also have an inline fuse on the meager charge line, which I have seen reduced from 10AWG to 14 or 16AWG. Have no idea why they do that, as it's just as easy to splice the proper sized wire onto the output lead that's bonded into the solar charge controller.

Look for that one between the charge controller and the positive bus bar.
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Old 04-06-2016, 08:01 AM   #7
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Thanx guys. This started as a no output from panels. I went nuts looking to check the fuse. Now it's become an intermittent problem. The fuse is likely ok. I have a loose wire somewhere. I'm thinking its on the controller under the bunk where there is a press fit connection.
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Old 04-08-2016, 01:56 PM   #8
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Found the fuse between the copper bus bar and the solar controller black box. Now that I have found it, it ought to have been obvious. I've decided that the solar panels and controller are operating correctly. When the batteries are fully or almost full the charge a page is zero. In my case when the battery capacity percentage reaches about 85% the charger kicks in and can show up to 6 amps in good sun. When % hits 100 it shuts off correctly. This charge profile seems correct.
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