i have a 2002 sundowner trail blazer 1, i purchased it used in 2006, and take care of it like it is a member of my family. i just purchased 2 new marine deep cycle batteries for it at the cost of $200.00. i pluged it in to an outlet to let the batteries charge, even tho the slaesman said they were charged 80%.

everything works perfect as long as i am using electric from the house to run the trailer. when i unplug from the house to run off the batteries-NADA. nothing works-at all. i have checked the fuses, the threee circuit breakers, unpluged the power cord from the converter and repluged it, still will not run off the batteries. all of the above check list was fine. the panel monitor is all lit on the battery part. went thru the owners manual troubleshooting guide and there is nothing in there for this problem. it does say that the batteries will charge when pluged into a land line.

i sure could use anyones help on this.

okie ann

thanks so much for your help. yep, i have positive from one battery to the positive on the other. i have the negitive [white] from one battery to the negitive [white] on the other.

i know they are charged to the max. what does hooked up in parallel mean?  from the battery they run up to the inverter which is in the closet up in the bad area. distribution box?? not sure what this is, or if i even have one. i have checked the fuses and none are blown. the owners manual does NOT discuss this problem, let alone show you where things are located. nothing in the owners manual either about the monitor panel on the wall. nothing on sundowners site for help with the problem.

thanks again.

yes it has living quarters done by sundowner, you must have the really nice one with the trailblazer 3. mine does not have a bathroom, just a cowboy shower and portable toilet in the first stall.  the owners manual say NOTHING about where things are located, believe me i have read it over and over for three days, tried to do a google search on this problem with sundowner, again nothing.  the nearest dealer is about five hours away, and i hate to go this route. when i put the trailer away last year everything worked fine, although i knew that the batteries were going to have to be replaced this year. i believe i only have one reset button, mine is up in the closet in the bed area, along with the inverter. all the fuses and circuit breakers are fine.

thanks very much for your help. anymore ideas?

okie ann

ok, i just read the two reference sites, seems like most is just common sense. according to the diagrams i do have everything connected correctly. parallel as i understand it, is the positive runs parallel to the positive on the second battery, the negitive runs parallel to the negitive on the second battery.

i have rechecked the fuses for the third time and none are blown. i also checked under the sofa for a second reset button, none there, just the one in the bed/closet area.

ok, i just went out and went thru the whole system again. took the batteries off, checked the battery cables, hooked back up, checked the fuses, and the 2 fuses in the inverter, still will not run off the batteries.

i am lost, and yes iam blonde!! 

thanks for everyones help. the 3 breakers were not tripped, none of the fuses were blown, i have checked them 4 times, the two batteries that i replaced were the same kind-marine type. the strange thing is that i can understand plugging into a outlet for electric and having power, if i plug into the truck i have power to everything that should run off the batteries. the exception is the air conditioner, microwave, and thats what the owners mannual states should happen, need electric for them.

so does this narrow it down? works off the power coming from the truck, and electric from the house, but nothing if i try to run it off just the batteries.

i agree electric is somthing that i don't want to monkey around with. my husband was the pro with this, he was a lineman for the power company and if anything at our home had black electric tape on it we knew who had been there. LOL  sadly he passed away.  i can not find more than one reset button, this one is next to the inverter box, and i have pressed this, no click.

once again, thanks to all of you.

okie ann      

Have you talked to the people you bought the trailer from....? Maybe they know of a hidden, magical, secret switch, that makes it all GO!! Maybe theres something they forgot to tell you, something that may have slipped their mind....

If I am reading this correctly, all of your 12v stuff still works when plugged into the truck, but not off the batteries? If that is the case, then these other guys are right and there has to be another fuse or circuit breaker in there somewhere. Start with the cable going to the battery and trace where it runs into the trailer and then go inside and follow it from there. Like RT said, it will be small.

hey laurie, you were correct.

called a sundowner dealer in nashville and talked to their service tech. he pointed out to me where the second reset button is. went out and found it, it indeed had to be reset. once i did this everything works great. my second reset switch is behind my clear water holding tank, with A BIG WHITE SIGN AND BLACK LETTERING THAT SAYS 12 VOLT RESET SWITCH. i sure wish they would include this in the owners manual. thanks everyone for your help, i really appreciate it.       

okie ann

So glad it was simple. I also spent days trying to figure mine out but mine wouldn't even work with the truck hooked up. I posted on here and didn't get any responses. I got a chuckle because I saw your post the day after I figured mine out and was glad to help.I do think more info needs to be in the manuals. Common sense made it hard to resolve because you don't expect a second button hidden, you just think everything would be together in the cabinet.

laurie, i so agree and told the service tech the same thing. i just wish in general they would go into more detail in the manual. mine sure leaves out alot. but the man i talked to couldn't of been nicer to me.

okie ann