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08-05-2018, 04:30 PM
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#1
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Senior Member
Join Date: Mar 2013
Location: The Evergreen State
Posts: 541
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12V Electrical Problem
Hello:
I have the MAXXFAN-WHITE 5100K. It stop working a couple months ago and decided to look in to the problem today. The MoHo 12V wire is now dead. Seems that I have a break in the wire and/or something else is causing an open circuit in the wire. Everything that runs on 12V seems to work in the MoHo. I have attached the lame electrical drawing from Fleetwood and its the power vent (PV) circle in red. The second attachment show there are also addition wires at the location white and red wire, need to check if that's 12V may have to use them if I can't find the problem.
Anybody tackle a similar problem? What can it be?
Thanks in advance!!
__________________
1996 34'J Fleetwood Bounder, Chevy 454 TBI P-32, Bank PowerPack, Ultra Power Chip, BellCranks, Rear Trac Bar, Silver Safe-T-Plus and 04 CR-V Toad, Roadmaster Base Plate and All Terain Tow Bar, SMI Stay-In-Play DUO.
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08-05-2018, 07:34 PM
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#2
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Senior Member
Gulf Streamers Club
Join Date: Jan 2012
Location: Cincinnati
Posts: 19,925
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The photo is too small and won't open in a larger format. You have electrically tested the fuse that protects the fan circuit? The fan most likely also as a fuse on the housing, have you checked it and tested for 12v at the fan? Ground connections can also be the cause, a test light or multimeter can help track down the issue.
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Bob & Donna
'98 Gulf Stream Sun Voyager DP being pushed by a '00 Beetle TDI
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08-05-2018, 08:04 PM
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#3
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Senior Member
Join Date: Mar 2013
Location: The Evergreen State
Posts: 541
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Hopefully this attachment will open to larger format. Yes all fuse are good. No power from the RV wires, was working before. All other 12V works in RV.
There another set of 12V wires (red and white) and its has a 20 Amp fuse for appliances. Would it be safe to tie into to that? Would I have to worry about overloading that circuit? Thanks
Edit: Sorry this attachment didn't work either.
__________________
1996 34'J Fleetwood Bounder, Chevy 454 TBI P-32, Bank PowerPack, Ultra Power Chip, BellCranks, Rear Trac Bar, Silver Safe-T-Plus and 04 CR-V Toad, Roadmaster Base Plate and All Terain Tow Bar, SMI Stay-In-Play DUO.
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08-05-2018, 08:16 PM
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#4
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Senior Member
Gulf Streamers Club
Join Date: Jan 2012
Location: Cincinnati
Posts: 19,925
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It would have a lot to do with what 12v appliances you have. Have you done the tests I suggested? Before just doing a workaround, I'd check the 12v wire and the ground connection, and fuse at the fan.
__________________
Bob & Donna
'98 Gulf Stream Sun Voyager DP being pushed by a '00 Beetle TDI
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08-05-2018, 08:45 PM
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#5
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Senior Member
Join Date: Mar 2013
Location: The Evergreen State
Posts: 541
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Quote:
Originally Posted by BFlinn181
It would have a lot to do with what 12v appliances you have. Have you done the tests I suggested? Before just doing a workaround, I'd check the 12v wire and the ground connection, and fuse at the fan.
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Yes. The ground wire checks OK, but no 12V power. Cannot trace the 12V wire as it disapears in the ceiling and not directly to the fuse (junctions). I don't see a fuse in the fan, see pix. I too, don't like work arounds and want to find out why the wire coming to the fan had power before and now no power.
I know the fan works cause I hooked up the other set of 12V wires and the fan runs. Thanks
__________________
1996 34'J Fleetwood Bounder, Chevy 454 TBI P-32, Bank PowerPack, Ultra Power Chip, BellCranks, Rear Trac Bar, Silver Safe-T-Plus and 04 CR-V Toad, Roadmaster Base Plate and All Terain Tow Bar, SMI Stay-In-Play DUO.
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08-05-2018, 08:59 PM
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#6
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Senior Member
Join Date: Jun 2011
Location: FL
Posts: 11,442
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Likely you popped a fuse.
https://www.amazon.com/Multi-functio...l+tracer+probe
A signal tracer can help. Put the tone on the wire and use the sniffer to chase it down.
I would go right to all known fuse panels first. They can label things poorly and make it hard to find.
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Certified Senior Electronic Technician, Telecommunications Engineer, Telecommunications repair Service Center Owner, Original owner HR 2008
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08-05-2018, 09:13 PM
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#7
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Senior Member
Monaco Owners Club Fleetwood Owners Club
Join Date: Sep 2016
Location: Manitoba, Canada
Posts: 971
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Mine has a fuse in the corner.  . You can see the small black round fuse case. Not sure if it is the same as yours or not.
Good luck, Terry
__________________
2002 Monaco Windsor 40PKD. Marjorie 2.
2015 Equinox V6 Roadmaster tow setup
2019 ALP Adventurer 24DS for the short trips. April, 2021
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08-05-2018, 09:28 PM
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#8
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Senior Member
Join Date: Mar 2013
Location: The Evergreen State
Posts: 541
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Quote:
Originally Posted by YC1
Likely you popped a fuse.
https://www.amazon.com/Multi-functio...l+tracer+probe
A signal tracer can help. Put the tone on the wire and use the sniffer to chase it down.
I would go right to all known fuse panels first. They can label things poorly and make it hard to find. |
Again, ALL 12V fuses are good, that I can find. I was thinking about the tracer earlier and i think i'm going to get it. I'm just curious about that wire. Thanks
__________________
1996 34'J Fleetwood Bounder, Chevy 454 TBI P-32, Bank PowerPack, Ultra Power Chip, BellCranks, Rear Trac Bar, Silver Safe-T-Plus and 04 CR-V Toad, Roadmaster Base Plate and All Terain Tow Bar, SMI Stay-In-Play DUO.
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08-05-2018, 09:30 PM
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#9
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Senior Member
Join Date: Mar 2013
Location: The Evergreen State
Posts: 541
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Quote:
Originally Posted by 96Bounder1st
Mine has a fuse in the corner. Attachment 214034. You can see the small black round fuse case. Not sure if it is the same as yours or not.
Good luck, Terry |
Hmm, went back out to see if mind had that fuse and it doesn't. But anyway, I know the fan works. Thanks
__________________
1996 34'J Fleetwood Bounder, Chevy 454 TBI P-32, Bank PowerPack, Ultra Power Chip, BellCranks, Rear Trac Bar, Silver Safe-T-Plus and 04 CR-V Toad, Roadmaster Base Plate and All Terain Tow Bar, SMI Stay-In-Play DUO.
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08-05-2018, 09:32 PM
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#10
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Senior Member
Fleetwood Owners Club
Join Date: May 2011
Location: summer-Cuba Mo./winter Somewhere in South TX.
Posts: 480
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My Pace Arrow has a wall switch for the fan. Does yours? If so, is there power at the switch? Eddie Elk.
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1998 Pace Arrow Vision 36' w/460, '03 Honda CRV, FMCA #388823, Gateway Getaways RV Club
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08-05-2018, 09:37 PM
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#11
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Senior Member
Join Date: Mar 2013
Location: The Evergreen State
Posts: 541
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Quote:
Originally Posted by eddieelk
My Pace Arrow has a wall switch for the fan. Does yours? If so, is there power at the switch? Eddie Elk.
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I thought of that too. I turned on every wall switch and nothing. I'm going to get that tracer that YC1 linked me. Thanks
__________________
1996 34'J Fleetwood Bounder, Chevy 454 TBI P-32, Bank PowerPack, Ultra Power Chip, BellCranks, Rear Trac Bar, Silver Safe-T-Plus and 04 CR-V Toad, Roadmaster Base Plate and All Terain Tow Bar, SMI Stay-In-Play DUO.
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08-06-2018, 06:33 PM
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#12
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Senior Member
Join Date: Jun 2011
Location: FL
Posts: 11,442
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There may be a lid switch. A pin switch that senses the cover is open so it will turn on. They can get flaky.
__________________
Certified Senior Electronic Technician, Telecommunications Engineer, Telecommunications repair Service Center Owner, Original owner HR 2008
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08-06-2018, 06:55 PM
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#13
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Senior Member
Gulf Streamers Club
Join Date: Jan 2012
Location: Cincinnati
Posts: 19,925
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Quote:
Originally Posted by YC1
There may be a lid switch. A pin switch that senses the cover is open so it will turn on. They can get flaky.
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 In addition, many fans have a thermostat that when turned all the way in one direction can also cause the fan to not come on.
__________________
Bob & Donna
'98 Gulf Stream Sun Voyager DP being pushed by a '00 Beetle TDI
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08-06-2018, 08:16 PM
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#14
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Senior Member
Join Date: Mar 2013
Location: The Evergreen State
Posts: 541
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I'm sorry if I did not make myself clear. The fan works. I hooked another 12V source and the fan runs. It's the original 12V line coming in to the fan that loss power. Everything on that circuit works except the fan, fuses are good. Open circuit/wire break something. I'm looking inside the hole where the distribution panel located but don't see any loose wires. Need to keep digging in. Thanks you all for your help!!
__________________
1996 34'J Fleetwood Bounder, Chevy 454 TBI P-32, Bank PowerPack, Ultra Power Chip, BellCranks, Rear Trac Bar, Silver Safe-T-Plus and 04 CR-V Toad, Roadmaster Base Plate and All Terain Tow Bar, SMI Stay-In-Play DUO.
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