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twokuhns
Ashtabula
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Wow, thanks Rick Jay, what a concise answer, Thank you very much, its dark here now, we will proceed tomorrow. Thankfully we are still home with it sitting in the driveway and not on the road somewhere. Its all pretty frustrating..seems as if there are several electrical things all at once. The fuses in the bottom on the converter are something we thought we should look at as well, but we can't get them out, they have screws on them and they won't come out=appear to be fused into the sockets...maybe. A whole nother problem!
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ksg5000
Oregon
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Joined: 06/30/2008
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I had the exact same problem - generator would start when the engine was running because it connected both the chassis and coach batteries together -- but when the engine was off the coach batteries didn't have enough juice to start the generator. I cleaned all the battery connections and noted that the ground wire for the coach batteries was pretty nasty -- clean terminals/ground and generator now starts fine.
Kevin
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twokuhns
Ashtabula
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Dusty, thank you, we will check that as well in the morning.
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40 Dave
OK.
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Have a 2006 Coachmen that had the same problem. The ground for the coach battery was attached to the frame with a screw which the head had broken off. Cleaned and bolted the cable to the frame and problem solved.
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Rick Jay
Greater Springfield area, MA
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twokuhns,
Any luck? Did you find the solution to your problem? If so, please fill us in. Future readers of the forum will find your solution helpful.
If you haven't nailed down the problem yet, have you ruled out anything or discovered anything else?
To support what some others have posted, bad grounds can certainly play havoc with electrical systems causing all sorts of unexpected behaviors.
~Rick
2005 Georgie Boy Cruise Master 3625 DS on a Workhorse W-22
Rick, Gail, 1 girl (27-Angel since 2008), 1 girl (22), 2 boys (23 & 20).
2001 Honda Odyssey, Demco Aluminator tow bar & tow plate, SMI Silent Partner brake controller.
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twokuhns
Ashtabula
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Thanks everyone for so many helpful suggestions. We are FIXED! Thanks to my husband that never quits. We checked the ATS and it was ok, so we moved on to the next thing. Our converter had two blown fuses. We had to take it out, and actually remove the cover to get the fuses out, they were pushed so far in they couldn't be removed without pushing them out from the backside. Put in two new fuses, reattached everything, and it all works. Hard to believe two little tiny fuses could be the cause of such a massive electrical failure.
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ed reed
NJ
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In my humble opinion as a retired marine mechanic, I have seen rust and corrosion do weird things to 12/120 volt systems over the past 30 years. Along with the other suggestions made, I would look for rust or corrosion at the relays which are probably located under the step inside your coach door. PROCEED WITH EXTREME CAUTION ! There should be 2 relays with wires coming off the 4 terminals on each one. I would recommend disconnecting shore power, not run the engine or genny and remove the terminals from the coach battery(ies), not allowing them to wander and get into a sparking situation. If you have 2 coach batteries, you will need to remove them both at the same time before proceeding. If for some reason you find that you need to disconnect the truck battery, when you re- attach it the computers will have to relearn their factory settings which includes transmission shifting and braking modes. I'll bet you will find massive amounts of rust there due to the fact that the batteries must be ventilated to outside air for safety factors thus subject to the road elements like rain and snow splash. Mine (2007) Forest River, were a mess when I bought it last year. I am surprised that you did not call JAYCO for a resolve. P.S. Draw yourself a wiring diagram before you begin for a reference, now and in the future. Good luck!
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