I went to winterize my 3450TS this weekend at the storage place where I keep it. Only certain 12v circuits were working. No lights or water pump. After messing with it for a while I plugged it in to my friends rig with a generator and then the rest of the 12v circuits decided to work. Is this normal? Thanks.
2012 3450TS 12v Issue
- Thread starter Zach
- Start date
branson4020
Icantre Member
Which 12V circuits still worked? Did you have ANY 12V power inside the rig?
Howdy Zach and welcome to the forum. This is a great place to gather and share information about our rigs.
I moved you post to the 12 volt DC area.
We may need a little more information.
Were you plugged in when using your 12 volt? Could be your battery is very low, then when you plugged into your friends rig the converter started up.
Peace
Dave
I moved you post to the 12 volt DC area.
We may need a little more information.
Were you plugged in when using your 12 volt? Could be your battery is very low, then when you plugged into your friends rig the converter started up.
Peace
Dave
Ray LeTourneau
Senior Member - Past Moderator
I think the other two posters are right on the money. Your battery is/was very low and only had enough juice for minimal lights. Several items use 12 volts while not plugged in and these items can drain a battery in a matter of a few weeks. Your best bet is to purchase a battery cut off switch. A fully charged battery should last a few months when disconnected.
GOTTOYS
Well-known member
If you haven't removed the battery cable to disconnect it, I would do that. Check your battery to see if it needs a charge. A dead battery will freeze if stored and be ruined. There are a couple things in the trailer that will always put a draw on the battery even if you aren't using it...Don
Ray LeTourneau
Senior Member - Past Moderator
OK, That's very strange. At least to me it is. I'm baffled.
brianharrison
Well-known member
Sounds like you are not getting 12V power from the battery to the breaker panel - the slides/landing gear (and a few others) run off the DC bus bar and autoreset breakers and the lights/refer/water pump run off the DC breaker panel. THe 12V supply from the converter seems to be feeding the breaker panel though.
You'll have to check your specific wiring but I would check to see if there are two 12V feeds to your breaker panel, and see if one from the battery (or disconnect if you have one) is loose and not making good connection. Sometimes when it gets colder outside, the connections that are loose/limited, or wire problems show up with a colder environment. The fun of troubleshooting electrical.
Good luck.
Brian
You'll have to check your specific wiring but I would check to see if there are two 12V feeds to your breaker panel, and see if one from the battery (or disconnect if you have one) is loose and not making good connection. Sometimes when it gets colder outside, the connections that are loose/limited, or wire problems show up with a colder environment. The fun of troubleshooting electrical.
Good luck.
Brian
branson4020
Icantre Member
Sounds like the DC circuit breaker that feeds your 12V fuse panel is tripped. Reset it and see if everything is OK.
View attachment 17204
View attachment 17204
brianharrison
Well-known member
Great schematic and picture Bob - I forgot about the manual reset breaker on the bus bar. Thanks for the clarfication. Link to DC bus bar on the Heartland Owners Manual (HOM) page.
Brian
