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04-29-2018, 10:58 PM
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#1
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Junior Member
Brand: Thor Motor Coach
Model: Four Wind Majestic 26Q
State: Colorado
Posts: 19
THOR #8765
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Mystery module
Pulling my rig out from winter storage, I find my monitor board dark, and my house battery dead. Suspected the solar panel was not working last fall. In my search I found this module next to my water pump and have no idea what it's for. Obvious add-on, as the power is connected to white and black/green stripe near my tail lights. Has a "buzzer" 2-pin connector, and two "sensor" 2-pin connectors. Don't have a clue where to look to trace wires.
2000 Thor / Majestic, Ford F450 V-10, 27'
Thanks, Duane (Road Rookie)
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04-30-2018, 12:49 AM
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#2
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Junior Member
Brand: Thor Motor Coach
State: Indiana
Posts: 3
THOR #11008
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Mystery module
Quote:
Originally Posted by dmjenks52
Pulling my rig out from winter storage, I find my monitor board dark, and my house battery dead. Suspected the solar panel was not working last fall. In my search I found this module next to my water pump and have no idea what it's for. Obvious add-on, as the power is connected to white and black/green stripe near my tail lights. Has a "buzzer" 2-pin connector, and two "sensor" 2-pin connectors. Don't have a clue where to look to trace wires.
2000 Thor / Majestic, Ford F450 V-10, 27'
Thanks, Duane (Road Rookie)
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I believe that is a flux capacitor. It came out in 1985, but only as a prototype.
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04-30-2018, 11:12 AM
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#3
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Axis/Vegas Enthusiast
Brand: Thor Motor Coach
Model: Axis 24.4
State: Michigan
Posts: 9,837
THOR #1150
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I spent some time trying to figure that out with zero results for you.
I can say that the one clear chip is a hex inverting buffer, and at the bottom there is a PIC microcontroller so whatever it does someone had to write some firmware for it.
Were those plugs disconnected when you found it? (If they were I would suspect that someone removed its functionality from the rig without removing the module.)
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04-30-2018, 12:38 PM
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#4
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Junior Member
Brand: Thor Motor Coach
Model: Four Wind Majestic 26Q
State: Colorado
Posts: 19
THOR #8765
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No this was connected when I bought the unit but never seemed to do anything, connected or not. Not knowing what it is makes tracing wires next to impossible.
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04-30-2018, 12:43 PM
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#5
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I Think We're Lost!
Brand: Still Looking
Model: Tiffin Wayfarer 24 BW
State: New York
Posts: 22,195
THOR #8860
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Can you get a better view of the area around the water pump, and see which loose wires are looking for something to be connected to them?
Good luck!
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"What: me worry?"
Good Sam Member 843599689
Current coach: Tiffin Wayfarer 24 BW
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04-30-2018, 12:46 PM
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#6
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Site Team
Brand: Thor Motor Coach
Model: ACE 27.1
State: Florida
Posts: 14,117
THOR #7035
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I don't see it in your pictures but is there an FCC ID number on it anywhere?
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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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04-30-2018, 12:55 PM
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#7
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Junior Member
Brand: Thor Motor Coach
Model: Four Wind Majestic 26Q
State: Colorado
Posts: 19
THOR #8765
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Not finding it anywhere - I tried to get a clear pic of all writing on it. Google search was useless.
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04-30-2018, 01:31 PM
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#8
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Member
Brand: Thor Motor Coach
Model: Ace 30.4
State: Louisiana
Posts: 41
THOR #9620
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Can this be your battery charging controller for either solar panel or 110v trickle charger?
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05-01-2018, 12:00 AM
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#9
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Junior Member
Brand: Thor Motor Coach
Model: Four Wind Majestic 26Q
State: Colorado
Posts: 19
THOR #8765
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Quote:
Originally Posted by Zeagle63
Can this be your battery charging controller for either solar panel or 110v trickle charger?
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I have been hoping this this the controller for my solar panel, but the hookups are confusing. A two-pin connector for "buzzer", and two two-pin connectors for "sensor". Power is low voltage. Definitely after market.
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05-01-2018, 12:06 AM
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#10
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Junior Member
Brand: Thor Motor Coach
Model: Four Wind Majestic 26Q
State: Colorado
Posts: 19
THOR #8765
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Quote:
Originally Posted by Bob Denman
Can you get a better view of the area around the water pump, and see which loose wires are looking for something to be connected to them?
Good luck!
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I don't have any loose wires per say. Voltage (power) wires tested good for low voltage. "Sensor" connectors disappear into the deck under the water pump and I'm having difficulty trying to trace where they go. Next step will be to put a tracer on the wires on the solar panel up top and see if I can get anything back there. Still have to figure out why my house battery went dead over the winter even though I started the rig up every 3-4 weeks. Will be hooking up to shore power this weekend now that I can get outside.
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05-01-2018, 12:40 AM
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#11
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Site Team
Brand: Thor Motor Coach
Model: ACE 27.1
State: Florida
Posts: 14,117
THOR #7035
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Quote:
Originally Posted by dmjenks52
I don't have any loose wires per say. Voltage (power) wires tested good for low voltage. "Sensor" connectors disappear into the deck under the water pump and I'm having difficulty trying to trace where they go. Next step will be to put a tracer on the wires on the solar panel up top and see if I can get anything back there. Still have to figure out why my house battery went dead over the winter even though I started the rig up every 3-4 weeks. Will be hooking up to shore power this weekend now that I can get outside.
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How long did you run it for when you started it?
__________________
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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05-01-2018, 01:09 AM
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#12
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Junior Member
Brand: Thor Motor Coach
Model: Four Wind Majestic 26Q
State: Colorado
Posts: 19
THOR #8765
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Quote:
Originally Posted by Tfryman
How long did you run it for when you started it?
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Varied - anywhere from 20-30 minutes to and hour. Sometimes I would tinker around while running it.
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05-01-2018, 01:45 AM
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#13
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Senior Member
Brand: Thor Motor Coach
Model: Vegas 25.2
State: Missouri
Posts: 1,038
THOR #4687
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Quote:
Originally Posted by dmjenks52
I have been hoping this this the controller for my solar panel, but the hookups are confusing. A two-pin connector for "buzzer", and two two-pin connectors for "sensor". Power is low voltage. Definitely after market.
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Just guessing here, but "sensor" could be for temperature sensor for batteries. "Buzzer" could be for a "low voltage alert". I have been looking at solar charging units and some of the ones I have been researching have these "features"
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05-01-2018, 02:30 AM
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#14
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Junior Member
Brand: Thor Motor Coach
Model: Four Wind Majestic 26Q
State: Colorado
Posts: 19
THOR #8765
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Quote:
Originally Posted by Mo_Mike
Just guessing here, but "sensor" could be for temperature sensor for batteries. "Buzzer" could be for a "low voltage alert". I have been looking at solar charging units and some of the ones I have been researching have these "features"
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Thank you for your diligence. I would hope this helps me to narrow things down. The disturbing part is, based on visible evidence and days of searching, I have no recourse to find who made this and why. Usually numbers and names on circuit boards give clues - not the case here.
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