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02-09-2020, 10:57 AM
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#1
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Senior Member
National RV Owners Club
Join Date: May 2008
Posts: 2,157
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Battery Disconnect Switch
Anyone ever have the Battery Disconnect Switch Light go out on their Tradewinds? Any thoughts/suggestions on replacing it? It is located just inside the entry door with all the other switches.
Mine was on until the Tech turned off the Battery switch to replace my Freedom 458 Inverter, then no light.
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Joe & Angie
Shih Tzu's Cookie & Rocky
2001 Tradewinds 7390 2011 CRV EX-L Navi w/ RoadMaster FuseMaster
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02-09-2020, 11:00 AM
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#2
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Senior Member
Thor Owners Club Ford Super Duty Owner
Join Date: Mar 2015
Posts: 343
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Quite often it's the solenoid that is bad or stuck... Probably in a box behind the grill.
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02-09-2020, 11:37 AM
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#3
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Senior Member
Join Date: Jul 2014
Posts: 35,349
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No light on the switch, but does the house battery powers things work ? Lights, fridge, water pump .....
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02-09-2020, 11:56 AM
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#4
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Senior Member
National RV Owners Club
Join Date: May 2008
Posts: 2,157
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Yes everything is working under shore power except that light on the disconnect switch. Just had the inverter replaced, but it's only putting out 94v. and the inverter green light is blinking like it's searching for watt mode. I'm wondering if the Tech wired the new inverter wrong or is there something else that needs to be fixed.
We could smell the old inverter where it burnt one of the pc cards. This happened while at a RV park on New Years Day around 2:30 am when my TV flashed on then my fan stopped working.
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Joe & Angie
Shih Tzu's Cookie & Rocky
2001 Tradewinds 7390 2011 CRV EX-L Navi w/ RoadMaster FuseMaster
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02-09-2020, 02:06 PM
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#5
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Senior Member
National RV Owners Club Solo Rvers Club Freightliner Owners Club
Join Date: Mar 2011
Location: FT for 6 years, NW in the summer, S in winter.
Posts: 1,173
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Joe, I think it's a small neon light and does not burn out. Mine did the same thing.....turned out to be a burnt and broken wire just behind the panel. Remove the 4 panel screws and pull the panel out to take a look. Rook
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When you get a chance to dance, or sit this one out......I hope you DANCE!
98 National Tradewinds 7370, powered by a 3126B 300HP CAT Turbo, Freightliner XC chassis
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02-09-2020, 02:58 PM
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#6
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Senior Member
Join Date: Jul 2014
Posts: 35,349
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If You have a MSW inverter, some volt meters will not read accurately. You need a " true RMS " volt meter.
Search mode will save battery capacity while using the inverter.
Rather then holding the voltage at 120 volts, it switchs off, saving power, and searches every few seconds for anything calling for power. If it senses something needing power, it switchs to full power.
The owners manual should have instructions to adjust the setting.
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02-10-2020, 09:30 PM
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#7
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Senior Member
National RV Owners Club
Join Date: May 2008
Posts: 2,157
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Quote:
Originally Posted by Rook
Joe, I think it's a small neon light and does not burn out. Mine did the same thing.....turned out to be a burnt and broken wire just behind the panel. Remove the 4 panel screws and pull the panel out to take a look. Rook
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Thanks for the info, I'll pull the panel tomorrow and look for damaged wires. When I checked the wires the other day all I got was 32-34 volts.
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Joe & Angie
Shih Tzu's Cookie & Rocky
2001 Tradewinds 7390 2011 CRV EX-L Navi w/ RoadMaster FuseMaster
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02-12-2020, 10:11 PM
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#8
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Senior Member
National RV Owners Club
Join Date: May 2008
Posts: 2,157
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Quote:
Originally Posted by Rook
Joe, I think it's a small neon light and does not burn out. Mine did the same thing.....turned out to be a burnt and broken wire just behind the panel. Remove the 4 panel screws and pull the panel out to take a look. Rook
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Does your Inverter hum when it's charging the batteries. Is it loud?
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Joe & Angie
Shih Tzu's Cookie & Rocky
2001 Tradewinds 7390 2011 CRV EX-L Navi w/ RoadMaster FuseMaster
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02-22-2020, 03:11 PM
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#9
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Senior Member
National RV Owners Club
Join Date: May 2008
Posts: 2,157
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Does the light next to the disconnect switch run on the batteries?
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Joe & Angie
Shih Tzu's Cookie & Rocky
2001 Tradewinds 7390 2011 CRV EX-L Navi w/ RoadMaster FuseMaster
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02-22-2020, 03:20 PM
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#10
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Senior Member
National RV Owners Club Ford Super Duty Owner
Join Date: May 2007
Location: El Cajon CA
Posts: 2,083
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Yes when the switch is on
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2007 Sea Breeze LX 8321 Ford Chassis
2004 Ford Ranger Edge
El Cajon CA.
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02-24-2020, 04:08 PM
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#11
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Senior Member
National RV Owners Club
Join Date: May 2008
Posts: 2,157
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Getting a little smarter. I checked the wires coming into the disconnect light on DC and it showed 14 which is correct. Now I have another question. If I shut off 50amp shore power, flip the discount battery switch to off and turn off the breakers at the Inverter why does my multimeter still read 14 on the wires to the light?
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Joe & Angie
Shih Tzu's Cookie & Rocky
2001 Tradewinds 7390 2011 CRV EX-L Navi w/ RoadMaster FuseMaster
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02-24-2020, 04:58 PM
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#12
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Senior Member
Join Date: Jan 2018
Location: Capistrano Beach, California
Posts: 4,465
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Quote:
Originally Posted by sgtjoe
Getting a little smarter. I checked the wires coming into the disconnect light on DC and it showed 14 which is correct. Now I have another question. If I shut off 50amp shore power, flip the discount battery switch to off and turn off the breakers at the Inverter why does my multimeter still read 14 on the wires to the light?
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Shore powers DC through the converter, so pulling shore power will still allow DC from the batteries. Turning off the inverter breakers shuts down 110 AC from the batteries, not 12 v DC.
Assuming your disconnect switch is a rocker type, that switch operates a solenoid which actually disconnects the DC to the coach. The switch sends a low amp current to the solenoid to activate it either ON or OFF. There must always be voltage at the switch for it to activate the solenoid. If the switch turned off all 12v power completely, including to itself, how could it possibly turn the power back ON? There would be no way to activate the solenoid to switch the battery power back ON.
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Larry, Eileen, and Finley
2004 Alpine 36FDDS
Third motor home, first Alpine, no need for another.
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02-24-2020, 05:37 PM
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#13
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Senior Member
National RV Owners Club
Join Date: May 2008
Posts: 2,157
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OK, thanks for the info.
__________________
Joe & Angie
Shih Tzu's Cookie & Rocky
2001 Tradewinds 7390 2011 CRV EX-L Navi w/ RoadMaster FuseMaster
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02-24-2020, 10:28 PM
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#14
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Senior Member
National RV Owners Club
Join Date: May 2008
Posts: 2,157
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HELP!! I want to take the disconnect light switch out but need to get the power to it off. How do I do that??
__________________
Joe & Angie
Shih Tzu's Cookie & Rocky
2001 Tradewinds 7390 2011 CRV EX-L Navi w/ RoadMaster FuseMaster
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