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04-06-2021, 12:43 AM
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#1
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Junior Member
Brand: Thor Motor Coach
State: Illinois
Posts: 4
THOR #22881
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No Power - Power Switch light stays on
I just replaced house batteries 2 weeks ago. Go to the RV today, and power switch light is on. Press the switch and it goes off while pressed but comes back on once released. No lights or other power in the coach. Monitor panel is dead. Can't start the generator. The engine starts fine, but no life to the house while engine is running. Try to raise the jacks, and get low voltage error on the panel. I am attaching a picture of the battery disconnect device. There is a board attached that looks like it should have a wire attached at the end. There is a gray wire coming from the fuse box circuit panel that is not attached to anything. I am guessing that is at least one problem. Can anyone validate that and give hints on how to fix that? Also I am guessing that I have had a drain on the batteries, and that pulling them out and connecting to a charger might help some of the problems. Again looking for some confirmation that I am on the right path. I have a 2019 Thor Windsport 34J that I bought used last March. With COVID, didn't get a chance to put it through its paces before the warranty expired. Now I have a lot of fixing to do to it without warranty.
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04-07-2021, 10:28 PM
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#2
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Junior Member
Brand: Thor Motor Coach
Model: Delano
State: Georgia
Posts: 8
THOR #22911
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Same here sort of
I just purchased a new Delano. My main power switch will not turn off. Light stays on as well as power to house from house battery. I have a rocker switch one way momentary action so you press and it springs back to original position. I have that same solenoid mechanism as you. When I press the switch the solenoid bumps but does not latch. New unit by seems to be bad. I know at some point it worked. The 2 fuses are good. One is for light and the other is for switch operation. Had a case open with Thor. They are sending another switch but I do not think that is it. Switch works, solenoid will not latch. No shore power connected, engine is off, inverter is off. Getting to that solenoid to change it will be a bear to wrestle. Can’t just lift the lid on bed. Let me know what you find. Hmm pics are upside down.
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04-08-2021, 01:02 AM
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#3
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Junior Member
Brand: Thor Motor Coach
State: Illinois
Posts: 4
THOR #22881
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Following up
Well, looks like my issue was just the low battery. Or at least, when I pulled the batteries out and charged them each for 8 hours, the main power switch works, I have power in the coach, and slides, generator and leveling jacks all are working. Of course, will need to determine why the battery went low in the first place. The pictures are upside down, because, of course, everything is under the bed, where it is hard to get to. So now that is settled, I pulled out the old residential fridge that was completely shot, and put in a new one. Fortunately, with the doors pulled off the fridge, the old and new barely fit out the door. So I guess I was lucky there.
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04-08-2021, 01:27 AM
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#4
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Site Team
Brand: Thor Motor Coach
Model: ACE 27.1
State: Florida
Posts: 14,329
THOR #7035
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Quote:
Originally Posted by MWarrren
I just purchased a new Delano. My main power switch will not turn off. Light stays on as well as power to house from house battery. I have a rocker switch one way momentary action so you press and it springs back to original position. I have that same solenoid mechanism as you. When I press the switch the solenoid bumps but does not latch. New unit by seems to be bad. I know at some point it worked. The 2 fuses are good. One is for light and the other is for switch operation. Had a case open with Thor. They are sending another switch but I do not think that is it. Switch works, solenoid will not latch. No shore power connected, engine is off, inverter is off. Getting to that solenoid to change it will be a bear to wrestle. Can’t just lift the lid on bed. Let me know what you find. Hmm pics are upside down.
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Are you troubleshooting this latching relay while plugged into SP?
The light you are looking at only indicates the status of the latching relay when NOT plugged into SP.
The light will be on when there is power to the house DC buss so if plugged into SP that light will always be on because your converter supplies the DC buss even if the house batteries are disconnected by the latching relay.
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Ted & Melinda
2016 ACE 27.1
2016 Chevy Sonic Toad - Selling
2020 Chevy Colorado Z71 Trail Runner Toad
2024 Chevrolet Trax 2RS - Soon 2B TOAD
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04-08-2021, 01:56 AM
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#5
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Senior Member
Brand: Keystone
Model: Sprinter
State: Florida
Posts: 1,422
THOR #15553
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I was gonna respond to this but ACE took the wind out of my sails!
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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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04-08-2021, 11:12 AM
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#6
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Senior Member
Brand: Thor Motor Coach
State: Missouri
Posts: 2,326
THOR #6903
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Quote:
Originally Posted by gstreet
Well, looks like my issue was just the low battery. Or at least, when I pulled the batteries out and charged them each for 8 hours, the main power switch works, I have power in the coach, and slides, generator and leveling jacks all are working. Of course, will need to determine why the battery went low in the first place. The pictures are upside down, because, of course, everything is under the bed, where it is hard to get to. So now that is settled, I pulled out the old residential fridge that was completely shot, and put in a new one. Fortunately, with the doors pulled off the fridge, the old and new barely fit out the door. So I guess I was lucky there.
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Why was your nearly new Fridge shot?
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04-08-2021, 11:16 AM
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#7
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Senior Member
Brand: Thor Motor Coach
State: Missouri
Posts: 2,326
THOR #6903
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Just for folks reading this if you have an inverter and it is shut off while you are plugged into shore power the house battery switch will indicate properly.
The pilot will go off when you shut off the isolation solenoid
RV's certainly are wired differently as we all have learned
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