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Old 05-19-2021, 04:05 PM   #15
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That is the exact same controller that I had. It is connected to your two 50w PV panels on the roof. You will find another pair of 10ga. wires which also go to the roof, that connect to the 10w panel, and do NOT go through that controller. WRV wrapped colored tape around each set of wires to distinguish them. Yellow for house, and blue tape chassis, in my case.

The red LED should illuminate when there is light on the panels.
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Old 05-19-2021, 04:25 PM   #16
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Quote:
Originally Posted by Theturboman View Post
So thanks to your help here I did find this controller in the fuse panel, just not sure if its original or put on later
my 2003 MDDS has the same controller and the two 50W panels on the roof
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Old 05-19-2021, 04:33 PM   #17
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Same as ours.
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Old 05-19-2021, 06:06 PM   #18
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Quote:
Originally Posted by Cinequip View Post
That is the exact same controller that I had. It is connected to your two 50w PV panels on the roof. You will find another pair of 10ga. wires which also go to the roof, that connect to the 10w panel, and do NOT go through that controller. WRV wrapped colored tape around each set of wires to distinguish them. Yellow for house, and blue tape chassis, in my case.

The red LED should illuminate when there is light on the panels.
I have only one single panel about 36 x 18 so it may have been replaced by a single 100w- or maybe less, I just do not know
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Old 05-20-2021, 01:44 PM   #19
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Factory Solar

On my 2006 36FDDS The solar controller was in the toilet area in power panel. But tested it and it was junk. So upgraded it to a Morning Star unit. Also upgraded solar panels to 500 watts. 5 100 watt panels. Working great now.
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Old 05-24-2021, 08:23 AM   #20
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Does anyone know if the ASC original solar controller is regulated and turned off with the system control panel when not needed or is it going 100% all of the time?
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Old 05-24-2021, 09:21 AM   #21
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Wish I could be a little more helpful but I will say that most Solar controllers I have seen across all manufacturers are not limited by external switching other than a circuit breaker interrupt.

Pretty much the idea is that solar is passive and a steady source of charging regardless of input and the circuit breakers are there so that the panels can be disconnected for service events
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Old 05-24-2021, 08:29 PM   #22
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The ASC controller is operating whenever the PV panel(s) are outputting power. It is connected to the House batteries through a 30a fuse in the battery bay, and bypasses the main battery disconnect switches. Therefore, it is "on" all the time.

On my coach, it is a yellow 10ga. wire that disappears under the fuse block.
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Old 05-25-2021, 10:09 AM   #23
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Thanks Paul I figured it was on all the time! There are no breakers that disconnect it on my coach.

Scott mine only has a 10 amp fuse for the small none working solar panel but don't see any for the 100 watt panel! Maybe an in line fuse somewhere?

If I were to put an off switch on one of the red or white wires which would be the best wire? Battery or array?
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Old 05-25-2021, 05:20 PM   #24
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Quote:
Originally Posted by Schuby View Post
Thanks Paul I figured it was on all the time! There are no breakers that disconnect it on my coach.

Scott mine only has a 10 amp fuse for the small none working solar panel but don't see any for the 100 watt panel! Maybe an in line fuse somewhere?

If I were to put an off switch on one of the red or white wires which would be the best wire? Battery or array?
It really won't matter, either positive or negative will get the job done......which ever is more convenient.

I used one of these on one of my small circuits, they come in various amperages.

https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
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Old 05-25-2021, 07:13 PM   #25
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That's too funny; I bought that exact switch last year to use on it! Sitting in my shop thanks again.
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Old 05-26-2021, 05:38 AM   #26
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My first Apline was a 2000 36FDS, it had optional 100w panel. I bought it from a widow in Texas. She said they always had trouble keeping batteries charged up. So the tested factory panel. It was hooked up backwards. So it never worked from new. Fixed that and it was fine after. As for the coach I have now 2006 36 FDDS. It also had 100w factory panel. Tested it and it was also Non Op. The factory controller mounted above 12v fuse panel in toilet room was bad. So replaced it with a Morning Star that can charge 2 banks. So I have it set to 10% chassis and 90% house. I also added 2 more 100 watt panels. Was working fine for 1 day. I forgot to upgrade the factory 10amp fuss. It blew that thing quickly. So installed a 40amp in its place. Itís in Battery compartment. Also my start Batterys were not charging from shore power. My main battery relay was no good also. Replaced it and everything is working as it should. I plan on adding at least 2 or 3 more panels. PS I donít like the idea that the battery relay is on all the time when plugged in. So I pull fuse out and jumper batteries. Seems like wasted power when dry camping. I just ordered a echo charger so I donít have to jumper them when I remove fuse. A latching relay would fix problem also.
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