No 12v service in 2013 Thor freedom elite

[Michael Frank]

Hi. Need help bought a 2013 Thor freedom elite and did not know anything about rvs. Found out quickly that my 12v system not working. No lights, water, pump, won’t turn on propane for water heater. All stuff works on shoreline and generator just not 12v. House battery is new but won’t charge. Got it charged. Solenoid under hood on drivers side was rusted badly so I changed it. Wasn’t sure whether it had anything to do with it. So I notice when I try to use the 12v by checking gauges on panel that it works for a second then goes out. Sort of lost. Thought about checking house battery cables. Tough to get at. Thanks for any help.

[Judge]

Do you have a Use / Store Switch? If so, it needs to be in the "Use" position to supply 12V from the batteries.

If it is in the "Use" position and you still don't have 12V, you will want to check your isolator relay and associated fuses.

[16ACE27]

There are several things between your house batteries and the 12 VDC buss. Starting from the house batteries + cable you will find a 50 amp (normally) DC breaker. After that you will find a latching relay controlled by a USE/STORE (battery disconnect) switch normally by the entrance door. Finally, in the power center are two large (30 or 40 amp) reverse polarity connection fuses.

Needless to say all of these have to be good/closed for the batteries to supply 12 VDC to the coach.

[Michael Frank]

Do you know where that relay is located? Is there a way to see if battery disconnect is the problem. The confusion for me is that I get power for a split sec then it shorts out. Appreciate help. I am not getting power to converter. Tested using voltmeter red and while wires so finding break is my problem. Looked at fuses. All good. Thanks

[16ACE27]

Originally Posted by Michael Frank

Do you know where that relay is located? Is there a way to see if battery disconnect is the problem. The confusion for me is that I get power for a split sec then it shorts out. Appreciate help. I am not getting power to converter. Tested using voltmeter red and while wires so finding break is my problem. Looked at fuses. All good. Thanks

Sounds like you have a bad connection that "OPENS" (not shorts) as soon as you try to pull current from the battery.

Converter not working is likely a completely separate issue as all 12 volt items should work regardless of the house batteries when plugged into SP.

What model Freedom Elite do you have?

[Michael Frank]

I have 2013 freedom elite. Could it be negative battery cable from house battery. All fuses are good. Thanks for any help

[16ACE27]

Originally Posted by Michael Frank

I have 2013 freedom elite. Could it be negative battery cable from house battery. All fuses are good. Thanks for any help

Could be.