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02-07-2019, 02:35 PM
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#1
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Junior Member
Join Date: Feb 2019
Posts: 15
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12 Volt disconnect switch
When I turn it to on position, nothing happens. I then turn the ignition switch on the Ford on, and then the disconnect switch seems to function. Seems like something is wrong, but I have no idea what. Any ideas. Thanks.
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02-07-2019, 02:40 PM
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#2
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Site Team
Join Date: Mar 2014
Location: Grayson County, Texas
Posts: 21,560
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Quote:
Originally Posted by Palpjl
When I turn it to on position, nothing happens. I then turn the ignition switch on the Ford on, and then the disconnect switch seems to function. Seems like something is wrong, but I have no idea what. Any ideas. Thanks.
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This doesn't not appear to be a general electrical system issue but is more likely to be unit specific. What brand/model RV do you have -- so we can move this to a better sub-forum?
__________________
2015 FR Wildcat 295RSX / GMC Sierra
Nights Camped: '13 = 49/'14 = 74/'15 = 74/'16 = 85/'17 = 110/'18 = 111/'19 = 86/'20 =108/'21 = 115/'22 = 135/'23 = 78; Booked for 2024 = 69 |
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02-07-2019, 03:09 PM
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#3
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Junior Member
Join Date: Feb 2019
Posts: 15
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12 volt disconnect switch
2017 Leprechaun. Thanks
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02-07-2019, 03:13 PM
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#4
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Site Team
Join Date: Mar 2014
Location: Grayson County, Texas
Posts: 21,560
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Quote:
Originally Posted by Palpjl
2017 Leprechaun. Thanks
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So I'm guessing a Leprechaun is a Coachman Motor Home - so here we go.
__________________
2015 FR Wildcat 295RSX / GMC Sierra
Nights Camped: '13 = 49/'14 = 74/'15 = 74/'16 = 85/'17 = 110/'18 = 111/'19 = 86/'20 =108/'21 = 115/'22 = 135/'23 = 78; Booked for 2024 = 69 |
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02-08-2019, 02:38 PM
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#5
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Senior Member
Join Date: Mar 2018
Posts: 420
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Quote:
Originally Posted by Palpjl
When I turn it to on position, nothing happens. I then turn the ignition switch on the Ford on, and then the disconnect switch seems to function. Seems like something is wrong, but I have no idea what. Any ideas. Thanks.
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I also have a Leprachaun (2018). Not being critical, but I cannot tell what you are describing here. Can you give us a little more detail? When you say 12 volt disconnect switch, are you talking about the coach battery disconnect switch? How do you know nothing happens, do the lights not come on? Something else? Where is the switch located?
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2018 Coachmen Leprachaun 210RS with DW, Nanuq the Samoyd puppy and the cat.
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02-08-2019, 03:50 PM
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#6
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Junior Member
Join Date: Feb 2019
Posts: 15
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Additional
It is the 12 volt coach disconnect switch which turns off all 12 volt power to the coach. It is located with all the other switches. It is round and turns either on or off by turning either left or right. When I turned it on, it did not work. In other words no 12 volt lights, pumps, generator, etc could be switched on. I called Coachmen on another issue and was told to check the two 5 amp fuses located left of the batteries under the steps. I did. They were both good, but just removing and replacing them seemed to trigger a FIX. Thanks for your reply.
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02-08-2019, 05:34 PM
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#7
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Senior Member
Join Date: Mar 2018
Posts: 420
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Quote:
Originally Posted by Palpjl
It is the 12 volt coach disconnect switch which turns off all 12 volt power to the coach. It is located with all the other switches. It is round and turns either on or off by turning either left or right. When I turned it on, it did not work. In other words no 12 volt lights, pumps, generator, etc could be switched on. I called Coachmen on another issue and was told to check the two 5 amp fuses located left of the batteries under the steps. I did. They were both good, but just removing and replacing them seemed to trigger a FIX. Thanks for your reply.
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Great, glad that it works. Would still love to know why it worked when you switched on the ignition switch. Do you have a switch and wiring installed which enables you to start your engine from the coach battery if the chassis battery is dead?
__________________
2018 Coachmen Leprachaun 210RS with DW, Nanuq the Samoyd puppy and the cat.
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02-08-2019, 05:52 PM
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#8
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Junior Member
Join Date: Feb 2019
Posts: 15
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Have no clue why it worked when I turned on ignition. No, as far as I know I have no switch to start vehicle with coach batteries. Wish we did.
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02-08-2019, 06:03 PM
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#9
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Senior Member
Join Date: Jul 2017
Location: North of Seattle, WA
Posts: 17,334
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Quote:
Originally Posted by Palpjl
They were both good, but just removing and replacing them seemed to trigger a FIX. Thanks for your reply.
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When just removing and replacing a fuse seems to "fix" things take a close look. The fault could be caused by a loose connection (solder joint or fuse contacts) that may cause a fault again. Give things a good "wiggle test" to make sure your "fix" is permanent.
__________________
"A wise man can change his mind. A fool never will." (Japanese Proverb)
"You only grow old when you run out of new things to do"
2018 Flagstaff Micro Lite 25BDS
2023 f-150 SCREW XLT 3.5 Ecoboost (The result of a $68,000 oil change  )
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02-08-2019, 07:21 PM
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#10
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Senior Member
Join Date: Jan 2018
Location: Raleigh, NC
Posts: 9,584
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Hairline
Quote:
Originally Posted by TitanMike
When just removing and replacing a fuse seems to "fix" things take a close look. The fault could be caused by a loose connection (solder joint or fuse contacts) that may cause a fault again. Give things a good "wiggle test" to make sure your "fix" is permanent.
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Can even be a hairline crack in the fuse element.
In 1973 I had an Opel GT in which I could run the heater fan or the wipers. Running both killed both. But if I turned the ignition off for a few seconds, it would magically heal. One day I noticed that the fuse link had a bend in it. Shining a flashlight behind it revealed the tiny crack which would open with moderate current flow and re-weld when the voltage was removed.
Larry
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