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02-27-2020, 05:27 PM
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#1
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Senior Member
Join Date: Oct 2018
Location: Prince William, VA
Posts: 345
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Help! Dead Chassis Batteries
N ot sure what happened. We stepped out for the day and came back to dead batteries. We’ve been connected the 30amp service for a week and a half and haven’t had any problems. Honestly I haven’t looked to see if it was charging because everything was running fine.
Anyway, everything is off now and I’m not sure where the problem is coming from. PowerWatchdog doesn’t throw any errors but makes an audible click 2 seconds after being plugged in.
Checked all the breakers, none are tripped.
The charging light is flashing and the Power Watchdog is continually trying to connect and then disconnecting for som reason but not throwing any error codes.
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02-27-2020, 05:39 PM
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#2
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Senior Member
Winnebago Owners Club Freightliner Owners Club
Join Date: Apr 2018
Location: Mostly, South Texas
Posts: 781
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Quote:
Originally Posted by Mapnerd
N ot sure what happened. We stepped out for the day and came back to dead batteries. We’ve been connected the 30amp service for a week and a half and haven’t had any problems. Honestly I haven’t looked to see if it was charging because everything was running fine.
Anyway, everything is off now and I’m not sure where the problem is coming from. PowerWatchdog doesn’t throw any errors but makes an audible click 2 seconds after being plugged in.
Checked all the breakers, none are tripped.
The charging light is flashing and the Power Watchdog is continually trying to connect and then disconnecting for som reason but not throwing any error codes.
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I know your frustrated and somewhat stressed. If it was me I'd be panicking. However, the 1st thing to do is list: Yr, Make, Model, chassis, Motor. How old are your batteries. Do you have a switch for you chassis battery and one for your house batteries.
When my engine batteries go dead I turn off everything. Mine never died while plugged in so I can only tell you what I do when unplugged. I start my genny for 20 min. Then hit the boost switch and she starts right up. Hopefully someone else here chimes in and helps us out. God bless.
__________________
Space Shuttle: 2012 Itasca Ellipse/Winnie Tour DP 450HP ISL8.9 TD, 43ft, Allison 3000, Freightliner Maxxum chassis lowered rail. U.S. Army Ret.
I DON’T KNOW THE KEY TO SUCCESS, BUT THE KEY TO FAILURE IS TRYING TO PLEASE EVERYBODY
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02-27-2020, 05:43 PM
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#3
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Senior Member
Join Date: Jul 2014
Posts: 35,441
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Check for water in the batteries, if they have caps.
While there check all battery connections.
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02-27-2020, 05:45 PM
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#4
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Senior Member
Join Date: Oct 2018
Location: Prince William, VA
Posts: 345
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Not panicking. Am frustrated.
Thought that info was in Signature.
2020 Newmar VTDP.
Batteries are 4 months old.
I think there might be a switch? Somewhere? Do you
Mean like a breaker or a switch to send power from chassis to house and vice Versa.
Also, these are the House batteries that seem to be dead, not the chassis.
Generator is running but I no idea how to tell if it’s charging the batteries or not.
__________________
John D.
2020 VTDP4326
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02-27-2020, 05:53 PM
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#5
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Senior Member
Join Date: Dec 2017
Posts: 138
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John,
Was your inverter on? If so, chances are good that you lost power at the pedestal and was inadvertently draining your house batteries. Was your AC working or washer/ dryer prior to leaving? Just trying to trouble shoot. It takes time to bring your batteries back to life on the magnum display and for the red fault light to turn off.
__________________
2019 Dutch Star 4326
Chevrolet Silverado 1500 Toad
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02-27-2020, 05:55 PM
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#6
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Senior Member
Join Date: Oct 2018
Location: Prince William, VA
Posts: 345
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Quote:
Originally Posted by twinboat
Check for water in the batteries, if they have caps.
While there check all battery connections.
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Batteries won’t take anymore water.
Connections are all good.
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02-27-2020, 06:04 PM
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#7
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Senior Member
Join Date: Dec 2012
Location: West Palm Beach, Fl
Posts: 1,482
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Did you try to reset the push breaker on the actual magnum inverter?
__________________
Corey and Tammi
2018 Allegro Bus 40SP
2009 Lexus GX470
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02-27-2020, 06:06 PM
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#8
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Senior Member
Join Date: Dec 2012
Location: West Palm Beach, Fl
Posts: 1,482
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I believe you have to clear the fault before it will work again
__________________
Corey and Tammi
2018 Allegro Bus 40SP
2009 Lexus GX470
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02-27-2020, 06:09 PM
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#9
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Senior Member
Join Date: Dec 2012
Location: West Palm Beach, Fl
Posts: 1,482
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Have you reset the inverter with the power button? Hold it down for 15 seconds or so
__________________
Corey and Tammi
2018 Allegro Bus 40SP
2009 Lexus GX470
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02-27-2020, 06:18 PM
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#10
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Senior Member
Join Date: Oct 2018
Location: Prince William, VA
Posts: 345
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I crawled into the bay and didn’t see any lights coming off the inverted. Also don’t see a power button anywhere
__________________
John D.
2020 VTDP4326
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02-27-2020, 06:24 PM
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#11
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Senior Member
Join Date: Oct 2018
Location: Prince William, VA
Posts: 345
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Found the power button. Tried resetting by holding it down. Light goes off as soon as I release the button. Inverter doesn’t seem to be getting any power as there are no light on.
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02-27-2020, 06:25 PM
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#12
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Senior Member
Winnebago Owners Club Freightliner Owners Club
Join Date: May 2013
Location: Springfield, IL
Posts: 1,070
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Open your manual!!!!!
you'll have a picture of the inverter pointing out the power button. Push it and a green light should come on IF there is power to it from shore power or gen set.
You should have a monitor in the coach that tells you what the house battery charge level is and whether it is charging.
I know it can be frustrating but the manuals provide good info. If no help call Magnum customer service.
Best wishes - Richard
__________________
2011 Itasca Ellipse 42QD; 2012 Buick La Crosse; Retired US Army MSG (20 years AFS); Retired! Retired! 
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02-27-2020, 06:28 PM
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#13
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Senior Member
Join Date: Dec 2017
Posts: 138
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Quote:
Originally Posted by CoreyinWP
Did you try to reset the push breaker on the actual magnum inverter?
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I would try this. You should have two breakers on your inverter.
__________________
2019 Dutch Star 4326
Chevrolet Silverado 1500 Toad
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02-27-2020, 06:33 PM
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#14
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Senior Member
Join Date: Dec 2012
Location: West Palm Beach, Fl
Posts: 1,482
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 bottom left corners are resettable buttons
__________________
Corey and Tammi
2018 Allegro Bus 40SP
2009 Lexus GX470
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