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03-03-2021, 11:47 PM
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#1
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Member
Brand: Thor Motor Coach
Model: Freedom Elite 30 FE
State: Arkansas
Posts: 66
THOR #6012
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House battery 2017 Freedom Elite 30FE
My son removed the house battery (one battery)on our camper last year and believe he knew how to reinstall it. The two battery cables are red on both ends and so he couldn't determine nor I, which was cable was positive and negative. Can someone send me picture of the correct install/setup of their house battery for the 2017 30FE please.
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03-04-2021, 02:01 AM
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#2
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Senior Member
Brand: Thor Motor Coach
State: Missouri
Posts: 1,275
THOR #6903
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Can you trace one of the cables and determine where it is connected?
One cable terminal should be different size as the negative pist is smaller
Good luck
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03-04-2021, 02:03 AM
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#3
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Senior Member
Brand: Thor Motor Coach
State: Missouri
Posts: 1,275
THOR #6903
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You could also use your VOM and check resistance of both to ground
The ground cable will have little resistance
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03-04-2021, 02:44 AM
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#4
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Member
Brand: Thor Motor Coach
Model: Freedom Elite 30 FE
State: Arkansas
Posts: 66
THOR #6012
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Do not have a VOM. However, one cable (positive or negative) is attached with 5 other individual sections of wiring with a nut to the underside metal of the coach. Maybe that is the positive side providing power to the coach. Not really sure.
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03-04-2021, 04:02 AM
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#5
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Site Team
Brand: Thor Motor Coach
Model: ACE 27.1
State: Florida
Posts: 5,954
THOR #7035
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Quote:
Originally Posted by dogday51
Do not have a VOM. However, one cable (positive or negative) is attached with 5 other individual sections of wiring with a nut to the underside metal of the coach. Maybe that is the positive side providing power to the coach. Not really sure.
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Any cable connected to the frame of the vehicle is a ground (negative) cable. The other cable should be traced to one or two DC breakers:
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Ted & Melinda
2016 ACE 27.1
2016 Chevy Sonic Toad
2020 Chevy Colorado Z71 Trail Runner Alternate Toad
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03-04-2021, 06:14 AM
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#6
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Senior Member
Brand: Thor Motor Coach
State: Washington
Posts: 574
THOR #6433
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I have the same year and model and here is what I have. The positive is the right terminal and the cable that runs to it goes along the step and is connected to the wire junction on the left wall of the step. I do know if you take the protective plastic off it’s red underneath and the negative is not. At least on mine
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03-04-2021, 12:10 PM
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#7
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Senior Member
Brand: Keystone
Model: Sprinter
State: Florida
Posts: 1,352
THOR #15553
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If you're gonna own and work on an RV you must own and know how to use a multi-meter.  Any wire connected to the frame of the RV is the negative cable. I believe if you look around you will find a black wire to go with the red ones. Red is positive and black is negative. 
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2011 Keystone Sprinter 323BHS. Retired Master Electrician. All Motor Homes are RV's. All RV's are not Motor Homes.
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03-04-2021, 12:12 PM
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#8
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Senior Member
Brand: Keystone
Model: Sprinter
State: Florida
Posts: 1,352
THOR #15553
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Quote:
Originally Posted by dogday51
Do not have a VOM. However, one cable (positive or negative) is attached with 5 other individual sections of wiring with a nut to the underside metal of the coach. Maybe that is the positive side providing power to the coach. Not really sure.
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Those are negative cables. Provided they are connected to the frame. Any of them Red?
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2011 Keystone Sprinter 323BHS. Retired Master Electrician. All Motor Homes are RV's. All RV's are not Motor Homes.
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03-04-2021, 01:11 PM
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#9
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I Think We're Lost!
Brand: Still Looking
Model: Tiffin Wayfarer 24 BW
State: New York
Posts: 19,230
THOR #8860
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 I guess we now understand the importance of labelling all cables, and taking pictures...
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"It's better to burn out: than to fade away..."
Good Sam Member 843599689
Current coach: Tiffin Wayfarer 24 BW
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03-04-2021, 01:29 PM
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#10
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Site Team
Brand: Thor Motor Coach
Model: ACE 27.1
State: Florida
Posts: 5,954
THOR #7035
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The problem with RED on a Thor coach is that they use a red anti-corrosion spray paint at the factory; so red is not a polarity indicator like you would hope it should be. Your negative cables are as likely to be red as your positive ones.
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Ted & Melinda
2016 ACE 27.1
2016 Chevy Sonic Toad
2020 Chevy Colorado Z71 Trail Runner Alternate Toad
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03-05-2021, 09:32 PM
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#11
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Member
Brand: Thor Motor Coach
Model: Freedom Elite 30 FE
State: Arkansas
Posts: 66
THOR #6012
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Battery
Thanks for the pictures 'elite washington'. Does your battery have the positive post on the right and negative post on the left? I was informed that the long cable is the ground since it is connected with other cables to the frame and the short cable is the positive I bought a new battery with positive on right and negative on left but will need to replace it with the posts reversed if that is the case.
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03-06-2021, 05:10 AM
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#12
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Senior Member
Brand: Thor Motor Coach
State: Washington
Posts: 574
THOR #6433
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The positive is the one on the right and that has the shorter cable connected to it. The positive cable runs along the step and then connects on the left side junction.
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2017 Freedom Elite 30fe 2013 Wrangler Unlimited toad.
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03-10-2021, 07:52 PM
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#13
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Junior Member
Brand: Thor Motor Coach
State: Florida
Posts: 5
THOR #19892
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Be very careful.
The junction of several cables you suggest are attached to the frame may actually be positive cables attached to a “standoff”. Be absolutely sure you know what is what. If not sure, get help. And always take a picture before removing any cables, even if replacing the battery immediately!
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03-11-2021, 01:38 AM
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#14
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Junior Member
Brand: Thor Motor Coach
State: Ohio
Posts: 26
THOR #15042
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Quote:
Originally Posted by dogday51
My son removed the house battery (one battery)on our camper last year and believe he knew how to reinstall it. The two battery cables are red on both ends and so he couldn't determine nor I, which was cable was positive and negative. Can someone send me picture of the correct install/setup of their house battery for the 2017 30FE please.
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Use digital meter use lowest ohm scale modestly 200 and it should read 0 short
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