well, previous topic dealt with my house batteries. turned out old ones were dead. replaced both, all was well. So day before heading out for Oregon i do some prep. began by retracting leveling jacks to pull out onto driveway - went down hill from there. Hour plus call with good sam tech - reset jack system, voltage of house batts 12.60 each; chassis batt ditto yet nothing working even when using shore power from home. Engine stopped two minutes after started when working fine earlier; electrical burn smell from house batt area; reset 100 amp circuits; checked voltage to leveling solinoid; checked 15amp fuse - nada. now it's dead in the water. won't start. nothing works even when using shore power...dunno if anyone out there has any insights; made september appointment for tow to local rv repair; cancelled rv park reservations....Good sam tech believes power not getting from house batts to leveling pump but how/why the engine shut down too is a head scratcher.

New batteries polarity connected wrong.

rgatijnet1 wrote:New batteries polarity connected wrong.+1

...so there are six cables connecting to the positive posts; three cables to each positive post on each battery and one cable that connects from the negative posts tying both batteries together. i am/was really certain i reconnected them correctly (tied the three cables together labeling rear batt positive post, front batt positive post. placed the one negative post cable tying both batts together on the side labled neg posts. is there a simple means to ensure the cables are correctly attached? Hesitate to revist...

Battery diagram Don't know whether or not you have 6 volt or 12 volt batteries but here is a diagram for most installations.

What is the voltage via Handheld meter on the positive and negative cables going to the coach ? ( the output) I too am a believer in the last thing you did may have caused an issue .. more times than not I’ve found that to be a starting point.

What The Heck??? | Good Sam Community

rgatijnet1
Explorer III
Aug 24, 2020
New batteries polarity connected wrong.
sch911
Explorer
Aug 24, 2020
rgatijnet1 wrote:
New batteries polarity connected wrong.

+1
jkc306
Explorer
Aug 24, 2020
...so there are six cables connecting to the positive posts; three cables to each positive post on each battery and one cable that connects from the negative posts tying both batteries together. i am/was really certain i reconnected them correctly (tied the three cables together labeling rear batt positive post, front batt positive post. placed the one negative post cable tying both batts together on the side labled neg posts. is there a simple means to ensure the cables are correctly attached? Hesitate to revist...
rgatijnet1
Explorer III
Aug 24, 2020
Battery diagram Don't know whether or not you have 6 volt or 12 volt batteries but here is a diagram for most installations.
jorbill2or
Explorer II
Aug 24, 2020
What is the voltage via Handheld meter on the positive and negative cables going to the coach ? ( the output) I too am a believer in the last thing you did may have caused an issue .. more times than not I’ve found that to be a starting point.
jkc306
Explorer
Aug 24, 2020
i have two 12volt house batteries. the difference i see from the posted diagrams: there is currently no cable(s) that attach to each positive post like the one cable that attaches to each batteries negative post...the positive posts are independent of each other and not "joined together" by any cable.
DownTheAvenue
Explorer
Aug 24, 2020
jkc306 wrote:
i have two 12volt house batteries. the difference i see from the posted diagrams: there is currently no cable(s) that attach to each positive post like the one cable that attaches to each batteries negative post...the positive posts are independent of each other and not "joined together" by any cable.

And therein lies your problem. You have connected the batteries incorrectly.
jkc306
Explorer
Aug 24, 2020
output voltage: i am no mechanic. i know the batts are 12.6 volt (ez test using meter to the respective poles/posts) but not sure how to test/where to place testers to check output to coach. I agree the problem originates fron new battery install, just not certain how to proceed. The two batteries are not hooked up in parrallel on the positive posts but the negative posts f each batt are hooked to each other by a single cable
way2roll
Navigator II
Aug 24, 2020
jkc306 wrote:
output voltage: i am no mechanic. i know the batts are 12.6 volt (ez test using meter to the respective poles/posts) but not sure how to test/where to place testers to check output to coach. I agree the problem originates fron new battery install, just not certain how to proceed. The two batteries are not hooked up in parrallel on the positive posts but the negative posts f each batt are hooked to each other by a single cable

Sounds like you just need a cable to connect the positive terminals. Did you have 2 batteries before?
jkc306
Explorer
Aug 24, 2020
2017 Thor ACE brand new came with two batteries. hydrometer affirmed they were dead; took them to auto store - could not be recharged. purchased two replacements of suitable compatabilty. while the neg posts are parrallel i honestly do not recall if the positive posts of each battery were in parrallel. Should these two batts positive posts be in parrallel? If so i would need to figure out which of the existing cables should be the parrallel one...