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Old 11-08-2015, 11:15 PM   #1
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Battery disconnect not working

I had new solar and charger / controller installed Friday. Took our van camping and plugged in most of the weekend. When out and about, did not hit the battery disconnect, because I had enough charge and didn't worry about it.

However, when pulling out of camp today, I hit the disconnect and turned everything off, as I normally do, in anticipation of storing on a lot tomorrow am and for the next few weeks.

When I stopped this evening, the fridge was on; I tried the lights and they worked; basically , everything worked, even with battery disconnect hit. In summary, our disconnect switch now does not disconnect anything.

Any guesses whether this is a switch fail (can that happen?) or is it possible our solar installer inadvertently bypassed the disconnect (can that happen?) when he was hooking up the new charger/ controller?

Appreciate any informed opinions.

Mark
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Old 11-09-2015, 05:20 AM   #2
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The solar panels need to be connected to the batteries, so they can be charged. Depending on the type of system, they may need to have bypassed the cutoff switch in order to wire the solar panels.
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Old 11-09-2015, 08:10 AM   #3
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Mark - I assume your 2015 Interstate has a remote switch for the disconnect near the sliding door. Have you checked the actual switch to see if it is turning off via the remote switch? It should be located under the lounge seat.


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Old 11-09-2015, 08:32 AM   #4
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No I haven't. I"ve always just relied on the remote. I"ll check the actual switch today when I get back to the vehicle. I should have thought about that, but it was late last night and I was just trying to figure it out. Thanks

So what will the outcome(s) mean? ...if the actual switch turns off, does that mean it's a switch fail by the remote? Or could the solar install have somehow bypassed the remote?
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Old 11-09-2015, 09:02 AM   #5
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All of my solar installations bypass the disconnect, as the charging output from the solar controller should be fed directly into the batteries. I also include separate disconnects that will isolate the array and solar charge line if desired.

This should not effect the OEM disconnect switch. If you still have DC power to your fuse block, then the solar installer must have bypassed the disconnect.

I would have the system re-checked for proper wiring thru the disconnect.




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Old 11-09-2015, 09:26 AM   #6
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Quote:
Originally Posted by lewster View Post
All of my solar installations bypass the disconnect, as the charging output from the solar controller should be fed directly into the batteries. I also include separate disconnects that will isolate the array and solar charge line if desired.

This should not effect the OEM disconnect switch. If you still have DC power to your fuse block, then the solar installer must have bypassed the disconnect.

I would have the system re-checked for proper wiring thru the disconnect.




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Lew, thanks. I'm still a little unclear. so base case, solar should be wired directly to batteries for obvious reasons. Should NOT affect the disconnect. This disconnect switch has always worked until now. Could it simply be a fuse?

Or Is there any way the solar install could have affected the remote disconnect? (e.g. it must be wired somehow to interrupt power from batteries to the coach .. maybe a wire was snipped, or shaken loose, or something during install of the solar charger-controller?)

What do you think?
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Old 11-09-2015, 10:42 AM   #7
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All is possible. Not being able to look at the installation or trace the wiring makes it very difficult to determine.

If the installer you used is local, I would have them re-examine the wiring to find the problem.


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Old 11-09-2015, 11:31 AM   #8
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With the isolation switch in the battery disconnect position, do you still have 12v inside the coach at night? If so, I would say the switch is not doing it's job as the only 12v supply at night would be the battery.
I don't know exactly what mechanism is used to isolate the chassis battery from the house battery, but perhaps that might need looking into.

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Old 11-09-2015, 12:10 PM   #9
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Another thought. Is it possible that the solar installer wired directly to the coach battery and to the coach side of the isolator switch to, for some reason, allow the coach to be powered by solar only with the switch in the isolate position? I would see no reason for that, but the 12v is coming either from battery or the solar if you are unplugged from shore power.


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Old 11-09-2015, 01:03 PM   #10
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Quote:
Originally Posted by Marks71 View Post
No I haven't. I"ve always just relied on the remote. I"ll check the actual switch today when I get back to the vehicle. I should have thought about that, but it was late last night and I was just trying to figure it out. Thanks

So what will the outcome(s) mean? ...if the actual switch turns off, does that mean it's a switch fail by the remote? Or could the solar install have somehow bypassed the remote?
Ok I started playing with the manual disconnect this am for the first time ever. (My bad). Turns out there's an "always" on, an always off, and an in between position that allows the remote to operate it. My installer inadvertently turned it back to always on after his install, rendering the remote useless. I put it back in the in between position and all is now well

I swear I can't find anything about this in the manual

Sorry to take everyone's time. Thanks for all the comments
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Old 11-09-2015, 01:05 PM   #11
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The solar should always bypass the disconnect (I think). It sounds like things might have been rewired so that the everything bypassed the disconnect. But I am not sure why that would have been done, since that has no relation to having new solar. More likely I would think is that the manual (rear) and electric (front) cut off switches are out of sync. Try manually turning the rear one to line up with what the front one says, then turn the front one, then check the back one.
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Old 11-09-2015, 01:29 PM   #12
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Isn't there a manual override on the battery switch? If the switch is manually moved to the ON position, maybe the on/off switch by the door won't work???
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Old 11-09-2015, 03:10 PM   #13
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I had a similar issue with my 2014 AI. It turned out the manual switch under the lounge was turned the wrong direction (according to the dealer tech) so that it did not rotate closed by use of the door switch. Once he showed me how it should work, I have not had an issue since then.
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Old 11-09-2015, 04:35 PM   #14
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battery disconncect switch

I experienced the same problem where the battery disconnect switch wasn't working. So I installed a new disconnect switch from colonial airstream and it worked. Never even knew about the manual switch but now it works. Dan'l
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