jfeltham
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Re: Connecting Battery Kills 12v System
Made some progress this morning. Looks like my understanding of which leads from camper to battery are mixed up and I probably connected them wrong. I traced the leads from converter to battery and found I had both positive and negative lead connected to NEG battery terminal (honestly don't know how I did that). 12v system is working fine now that I have white to NEG and black (which has a yellow pigtail with 35amp fuse) to POS. New question: the second set of leads to battery...I'm assuming they are for the brakes, running/tail lights? They are both black and one is fused. Any idea how to connect these? I don't want to experiment for fear of really messing something up.760Views0likes0CommentsRe: Connecting Battery Kills 12v System
dougrainer wrote: On Jayco, there is a 30 amp ATC fuse. This fuse is between the Battery and the INSIDE fuse panel. It is located in 2 places depending on the Year Jayco. On a short pigtail within 10 inches of the POS post of the battery. OR, on the front of the trailer ON the cross frame, there is a 4 by 4 metal box and coming out of that box is that 30 amp ATC fuse. IF that fuse is blown(it is) replace it, Your problem is solved. Also, if that fuse is blown, your truck will not charge the battery in transit. Doug 30 amp fuse on POS line is good. So strange. everything works as it should when connected to 115v. Shut off 115v and connect the battery, and all 12v stops working whether or not 115v is connected. Follow-up question...what is the Yellow line on the NEG cable? It has a 35amp in-line fuse. When connected, it gets very warm.760Views0likes0CommentsRe: Connecting Battery Kills 12v System
By disconnect, I removed the negative battery cable. Set-up is stock from Jayco, no disconnect or switch. New battery was installed by our local RV dealer. I did remove the battery and then reinstalled it. Would removing the battery and then reinstalling it lead to something like this? As far as reversing the polarity, I'm pretty sure I didn't reverse it at any time...black is + and white is -. Also, the reverse polarity fuses in converter are still good (per multi-meter). I've been thinking some more on this, and perhaps I should share this...full disclosure. As I mentioned, I removed the battery and reinstalled it. The reason I did this was to jump the tow vehicle...I'll explain: Our youngest, somewhere between Amarillo and Roswell, decides he needs to use the restroom. We pull off the road and all take turns using the lav in the trailer (12 volt system working as the water pump was functioning). When we get loaded back up and go to start the tow vehicle, I get nothing...no turn over, no clicking, nothing. So, being in the middle of no-where, I decide to jump off the deep cycle battery. I remove it from the case, jump the truck, then reinstall it. Never checked to see if it was working...but at our lunch stop 2 hours later, nothing is working. I was surprised that the truck wouldn't start. Battery in truck was in fairly good shape... Could an electrical problem with the trailer battery pull down the tow-vehicle battery?760Views0likes0CommentsConnecting Battery Kills 12v System
Maybe this has been answered already, if so maybe someone can point me to the post. We're on a 3 week cross country trip with the kids in a 31' Jayco travel trailer. Had our battery system give us some trouble today while entering New Mexico from Texas. At a rest stop for lunch, we noticed our refrigerator had stopped working on LP. Looked into it and discovered we had no 12v anywhere in camper. Just got into the campground about an hour ago (in a heck of a thunder and lightning storm) and when we hooked up to 30 amp AC, I still had no 12v systems working. After fooling around and looking at it for over 2 hours, I discovered that if I disconnect my battery, my 12v systems work. Very strange to me. The short of it is the following: - Battery is fully charged (brand new last week). - All fuses and breakers test good with multi-meter. - I get 12v between the positive fuse holder near the battery terminal and frame. - I have no 12v input into the converter from the battery leads at the rear of the converter. Anyone ever run into something like this before? PS...had to create a new login identity. On the road and I can't remember my sign in credentials...but I'm a regular here on RVnet. Best thing to come about since camping itself!1.8KViews0likes17Comments
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