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Electrical Discussion of preventative/corrective maintenance and other technical issues regarding your coach's electrical system.

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  #1  
Old 12-22-2019
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ChrisRasman ChrisRasman is offline
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Default Lost DC

I am in the middle of swapping out my Trace for a Victron inveter. All I have out right now is the inverter. All of a sudden we have a relative coming in and we offered him the coach since it is in the back yard and we have other family in the guest boredom. I temporally connected the AC input (that was to the trace) to the AC out. I wrapped up the big lugs from the batteries in electrical tape and put them in a plastic box. I still have a battery in the tray in the back and have a smart charger plugged in and on it. I plugged the coach in to shore power and the transfer switch did its thing and clunked over to shore power no problem. When I hit the master DC by the passenger seat I get nothing. I looked at the 200 amp relays under the drivers window. I am not getting DC in on the one. The other one (ignition) is working right. I must be missing something. I went all over the prints in the blue box but I can't figure it out. I started the generator and that worked fine and the transfer box switched over. then I shut it down to see if that would knock something loose maybe. I have 12+ out on the big fuse on the house DC panel to the right of the battery box where he heavy DC cable to the inverter runs out with a #4 (or something like it) next to it that I believe runs to the DC box. I read that the DC runs through transfer box. Should i disconnect the AC in and the AC out wires I connected that went in and out of the inverter? Any ideas would be appreciated.
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Christopher Rasmussen
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  #2  
Old 12-22-2019
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Does the LX have the battery cross-over switch on the dash? If so, you might try that.
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  #3  
Old 12-22-2019
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Quote:
Originally Posted by jwmp View Post
Does the LX have the battery cross-over switch on the dash? If so, you might try that.
Thanks , I did try that. I shorted the big relay too. But I have no DC into it anyway. I just cut the 110VAC from the inverter in and out wondering if that had anything to do with it and it didn’t. I gather all shore power runs through the inverter because I lost it all when I did that. I put them back together and got the AC back. I’ll have to go hunting for blown fuses I guess. Can’t flush the toilet without DC lol. Got the sink and hot water, a few 110VAC lights and the TVs. Don’t need heat or AC tonight so I’m sure it will do. It’s just a night and tomorrow the other fam goes home. I’ll figure this out when I open the transfer box I think.
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2003 Wanderlodge 40LX
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  #4  
Old 12-23-2019
andywojteczko andywojteczko is offline
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Do you have the Cole Her see Switch in the inverter box area?

Mine was open and caused no DC power to house side.


Andy
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  #5  
Old 12-29-2019
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Well I opened the transfer box and looked around the inverter area and saw no DC other than the 2, 0/4s to the old inverter. I reinstalled the original inverter to see if it made any difference with no luck. I removed the big fuses in the back and tested out of circuit and they are good. I started the coach and I could see house DC volts on the dash (not before I started it). So I shut it down and tried the generator with no luck. It was then, when I tried the aux battery switch, I got house DC. So I turned it on and off over and over (hearing the relay out under the toll window click and click). After about 10 time the house DC came up with it off. I guess the relay may have pitted when the 8D blew up (dead short?). I have DC again. Till I get this all sorted with the LiPos and the new inverter, it will do. I may replace that relay.
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  #6  
Old 12-29-2019
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Show us a photo of the relay that is clicking, I may have a new one (as may others).
Glad you found it.
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  #7  
Old 12-29-2019
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Thanks! I got to get my wife in the coach to hit the switch so I can tell what one it is . I’ll get back to you on a few hours!
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2003 Wanderlodge 40LX
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  #8  
Old 12-30-2019
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Attachment 65682
Quote:
Originally Posted by chiplamb View Post
Show us a photo of the relay that is clicking, I may have a new one (as may others).
Glad you found it.
Like it matters, but its the one on the left. I put my ear to a screw driver to make sure I had the right one. It's clack is so loud I was not positive till I touched them. The one on the left is Da*n hot. I am keeping an eye on it because I have a friend staying in the coach while my grandson visits. I appreciate the help.
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Christopher Rasmussen
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2003 Wanderlodge 40LX
Body# F133835
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  #9  
Old 12-30-2019
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Not uncommon,
http://www.amazon.com/Emerson-124-10.../dp/B00EZHL2RY

If you think your battery disaster might have affected the other one too, they're cheap enough!
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Chip Lamb
Augusta, Georgia
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chip@collectorsco.com / 706-339-3429
1987 FC35SB
1996 Prevost XL40 Liberty Conversion
Former: 04 M380, 90 SP36, 92 WB40, 85 FC35SB & others
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  #10  
Old 12-30-2019
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ChrisRasman ChrisRasman is offline
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Thanks, got two new ones coming in!
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Christopher Rasmussen
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2003 Wanderlodge 40LX
Body# F133835
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