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10-12-2014, 12:25 PM
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#1
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Junior Member
Join Date: Oct 2014
Posts: 8
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12Volt Battery Power
I have a 05Winnebago 37B Adventurer. I recently had a new converter installed. Everything works fine on 110V but when unplugged ThePower center shows no 12v powe and no 12v items work.Can someone offer an answer to this? Thanks
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10-12-2014, 01:07 PM
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#2
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Moderator Emeritus
Damon Owners Club Workhorse Chassis Owner
Join Date: Mar 2012
Location: Lone Star State
Posts: 19,203
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What is known is that the (new) converter is producing 12VDC when on shore power and when off there is no 12VDC. For my post, I am assuming the system was reassembled properly...
With no shore power (and no solar system) all 12VDC comes from the batteries - so either:
-The batteries are drained and are not taking a charge from the converter.
-The feed from the batteries has an issue like a popped breaker/fuse.
The first thing I would check is the condition of the batteries and the cables connected on them.
Best luck
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10-12-2014, 01:51 PM
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#3
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Senior Member
Winnebago Owners Club Nor'easters Club Workhorse Chassis Owner
Join Date: Jun 2012
Location: Freedom, NH
Posts: 1,520
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Is the battery switch by the door turned on?
__________________
Fran, Mary & Zoey (silver Cocker)
2017 Thor Axis 25.5 "RUV", Ford E-450, V10, 6 speed
2016 Chevy Sonic LTZ Auto Hatchback 4-down
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10-12-2014, 02:00 PM
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#4
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Senior Member
Damon Owners Club Workhorse Chassis Owner
Join Date: Mar 2009
Posts: 24,024
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#2 on the disconnect.. In fact check the batteries as well.
Standard procedure, per the book, which young mechanics tend to follow, is to DISCONNECT THE BATTERY GROUND LEAD before doing any work on the electrical system.
Common practice is to forget to hook it back up
(Alternate is to operate the house battery (Aux) Disconnect and forget to re-connect)
On many RVs the switch is labeled AUX on others USE/STORE (mine is like that) and also on mine the STORE (Disconenct) worked just fine.... The USE.. Not so fine (Yes I was able to fix it)
If you have that problem (HINT, it goes CLUNK when it works) I'll talk you through a possible no-cost repair. Will need make of battery control center though.
__________________
Home is where I park it!
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10-12-2014, 03:31 PM
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#5
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Junior Member
Join Date: Oct 2014
Posts: 8
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I forgot to add that I bought two new deep cycle batteries. Yes, the disconnect switch does go clunk. I just checked and the switch was in STORE and I turned it on and I have 12v. Boy do I feel stupid. Thanks for all the help
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10-12-2014, 03:52 PM
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#6
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Community Administrator
Tiffin Owners Club
Join Date: Sep 2013
Location: DFW, Texas
Posts: 21,151
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Quote:
Originally Posted by hbjajags
I forgot to add that I bought two new deep cycle batteries. Yes, the disconnect switch does go clunk. I just checked and the switch was in STORE and I turned it on and I have 12v. Boy do I feel stupid. Thanks for all the help
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Welcome to the Forum and we've all been there so don't feel bad!
__________________
2017 Phaeton 40IH XSH Maroon Coral - Power Glide Chassis with IFS
Previous '15 Tiffin Allegro RED 38QRA and '06 Itasca Sunrise 35A
'16 Jeep JKU Wrangler Sahara or '08 Honda Goldwing
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10-13-2014, 11:10 AM
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#7
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Senior Member
Join Date: Sep 2010
Location: MI
Posts: 1,094
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Ah Yup! Glad it's ok.
2013 FleetWood Expedition 38B
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10-13-2014, 12:36 PM
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#8
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Community Moderator
Newmar Owners Club
Join Date: Feb 2011
Location: Point Pleasant Beach, NJ
Posts: 31,248
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Glad to have you here in the forum with us.
It's the simple things that'll get ya everytime. I'm glad you got it solved. Best of luck with your Winnebago and Happy Trails!!!!!
__________________
Tony & Ruth........... FMCA#F416727
2016 London Aire 4519, Freightliner chassis, Cummins ISX, 2018 Jeep Wrangler Unlimited, Blue Ox Avail with AF1. TST 507 TPMS
No amount of money can buy you an extra second of time.
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10-13-2014, 02:20 PM
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#9
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Senior Member
Damon Owners Club Workhorse Chassis Owner
Join Date: Mar 2009
Posts: 24,024
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Quote:
Originally Posted by hbjajags
I forgot to add that I bought two new deep cycle batteries. Yes, the disconnect switch does go clunk. I just checked and the switch was in STORE and I turned it on and I have 12v. Boy do I feel stupid. Thanks for all the help
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Ok, now that I know what switch you have.. I will (hopefully) make you feel a bit less stupid.
That switch is very very easy to hit by accident, done it many times, Usually figure it out when selected radios (Connected directly to the battery) start to malfunction while other radios (Connected to the house fuse panel) work perfectly (off the Progressive 9180 + wizard) .
I finally built up a "Switch guard" (Basically a couple layers of craft stick either side of the switch) to make it harder to push by mistake.
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Home is where I park it!
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10-13-2014, 02:31 PM
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#10
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Community Administrator
Tiffin Owners Club
Join Date: Sep 2013
Location: DFW, Texas
Posts: 21,151
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Quote:
Originally Posted by wa8yxm
Ok, now that I know what switch you have.. I will (hopefully) make you feel a bit less stupid.
That switch is very very easy to hit by accident, done it many times, Usually figure it out when selected radios (Connected directly to the battery) start to malfunction while other radios (Connected to the house fuse panel) work perfectly (off the Progressive 9180 + wizard) .
I finally built up a "Switch guard" (Basically a couple layers of craft stick either side of the switch) to make it harder to push by mistake.
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Switch guard is a great idea.
I don't know how many times mine has been accidently shut off when sweeping off the steps. (It's built in the side of the stair well.) I usually find out when we unplug and take off to the tune of the refrigerator beeping that it has no 12v power.
__________________
2017 Phaeton 40IH XSH Maroon Coral - Power Glide Chassis with IFS
Previous '15 Tiffin Allegro RED 38QRA and '06 Itasca Sunrise 35A
'16 Jeep JKU Wrangler Sahara or '08 Honda Goldwing
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10-13-2014, 10:48 PM
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#11
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Member
Join Date: Feb 2012
Posts: 56
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I too like the idea of a switch guard, as mine has gotten switched many times, while fumbling for a different, but VERY closely placed switches that even feel the same in the dark.
Jimmy
__________________
Jimmy & Becki Cullipher, Stuttgart AR
2013 Thor Challenger 37DT 37'
2011 Jeep Wrangler on the Blue Ox
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10-28-2014, 04:14 PM
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#12
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Junior Member
Winnebago Owners Club
Join Date: Feb 2013
Location: montverde fl
Posts: 15
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I have a 05 vectra parked it the other day went back a day later and no 12v power to the coach I chked batterys and all are 13.5 volts chked disconnect and still no 12v any ideas
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10-29-2014, 07:47 AM
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#13
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Community Administrator
Tiffin Owners Club
Join Date: Sep 2013
Location: DFW, Texas
Posts: 21,151
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Quote:
Originally Posted by Denny1949
I have a 05 vectra parked it the other day went back a day later and no 12v power to the coach I chked batterys and all are 13.5 volts chked disconnect and still no 12v any ideas
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There may be a circuit breaker or a heavy duty fusible link (fuse) in the 12v supply between the batteries and the coach. That would be the next thing to check if your disconnect relay is working properly.
To check the disconnect relay, make sure it shows the 13.5 volts on both sides of the relay when is is supposed to be turned on. They are normally a latching type relay that stays on or off without having power to the coil like a regular relay.
The next would be make sure the ground connection from the batteries is making good contact.
__________________
2017 Phaeton 40IH XSH Maroon Coral - Power Glide Chassis with IFS
Previous '15 Tiffin Allegro RED 38QRA and '06 Itasca Sunrise 35A
'16 Jeep JKU Wrangler Sahara or '08 Honda Goldwing
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