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11-15-2017, 07:22 PM
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#1
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Junior Member
Join Date: Nov 2017
Location: Madras
Posts: 15
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New Batteries, no 12 volt current
We just installed new Interstate group 24 deep cycle marine batteries, wired in parallel in our 2015 331RKTS Eagle Premier. There is no 12 volt current. Checked all the obvious fuses and cleaned all wire ends and battery posts cleaned off. We are new to this trailer and are wondering if there are any hidden breakers or fuses to look for, or hidden switches? Thank you!
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11-15-2017, 08:27 PM
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#2
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Senior Member
Join Date: Aug 2016
Location: Villas NJ
Posts: 159
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Check battery disconnect switch, mine is in battery comp. May also check polarity and polarity fuses.
__________________
2020 Pinnacle 36FBTS
2016 Chevy 3500HD Duramax
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11-15-2017, 10:20 PM
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#3
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Senior Member
Join Date: Dec 2014
Location: FL
Posts: 11,281
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Quote:
Originally Posted by merlinhomeauto
Check battery disconnect switch, mine is in battery comp. May also check polarity and polarity fuses.
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x2 on the above.
One of the most common mistakes is installing the battery(s) in reverse polarity. Even just touching the cables while reversed will blow the converter/charger reverse polarity fuses. When that blows, you will no longer have 12v for the trailer.
__________________
Sherm & Terry w/rescue Eydie (min Schnauzer) & Charley (std Poodle)
SOLD:2015 Jay Flight 27RLS, GY Endurance (E), Days: 102 '15, 90 '16, 80 '17, 161 '18, 365+ '20
SOLD: 2006 Ford F350 PSD, 4WD, CC, LB, SRW, Camper pkg., 375,000mi
Full timing: Some will think you're crazy, some will be envious, just enjoy the freedom!
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11-16-2017, 07:22 AM
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#4
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Senior Member
Join Date: Apr 2014
Location: Calgary
Posts: 885
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Have you checked that the batteries have a charge?
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2014 Jayco Swift 281BHS, 300W Solar!
2015 F250 XLT 4x4 Crew Cab, Short box, 6.2 gas
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11-16-2017, 09:42 AM
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#5
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Senior Member
Join Date: Sep 2011
Location: King George
Posts: 2,761
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Getting one of those el-cheapo Multimeter from WALMART (Less than $20) is a good thing to always have around the RV.
Google Image
You can check right at the battery terminals and can see 12.5-6VDC if the batteries are full charge. Then you hookup to shore power and this reading should jump up to 13.6VDC or higher depending what charge mode the CONVERTER is doing at the time.. My highest DC Voltage reading is 14.4VDC... This tells you all connections are good and the CONVERTER is working...
If you read DC VOLTAGE at the battery terminals and still not getting anything on the trailer side then you have a bad connection, battery switch set to OFF, or fuse problem somewhere between the battery terminal and the 12VDC Distribution panel.
Sure helps to isolate the problem having a multimeter around...
Harbor Freight used to give you one free if your bought something from them that was was $25 or more...
Roy Ken
__________________
Roy and Carolyn
I claim Horse Creek Country in Southern Ill - Momabear is from North Texas
We live in King George VA
RETIRED DOD DOAF DON CONTRACTOR Electronics Tech 42YRS
"We're burning daylight" - John Wayne
2008 STARCRAFT 14RT OFF-ROAD POPUP with PD9260C and three 85AH 12VDC batteries
2010 F150 FX4 5.4 GAS with 3.73 gears - Super Cab - Towing Package - 2KW Honda EU2000i Gen
K9PHT (since 1957) 146.52Mhz
"We always have a PLAN B"
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11-16-2017, 10:46 AM
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#6
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Senior Member
Join Date: Mar 2015
Location: Boise
Posts: 123
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You might also check the 30 amp fuse located near the battery box.
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2017 F150 3.5 Ecoboost, screw, Max Tow, Blue Ox Sway Pro, 2017 Jayco 24MBH
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11-16-2017, 11:45 AM
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#7
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Senior Member
Join Date: Sep 2011
Location: King George
Posts: 2,761
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If you have just installed the new batteries chances are you may have them connected wrong... Find the word 'NEG' or the symbol '-' stamped into the battery case and make sure this is the cable that goes to frame ground...
The color of the wires in the RV WORLD should be WHITE is NEGATIVE frame ground and BLACK is POSITIVE...
This is different from the AUTOMOTIVE WORLD where BLACK is FRAME GROUND and RED is POSITIVE.
Easy to mix up...
If the were connected wrong you should find a BLOWN fuse right next to the battery and also two fuse near the 12VDC Distribution PANEL that may be labeled "REVERSE-POLARITY' ...
Two 12V Batteries should be wired like this
Two 6V batteries in series to get 12VDC should be wired like this
OOPS - Sorry for duplicating answers here - some reason I was not refreshing and I wasn't aware I was duplicating some others answers Sorry about that...
Roy Ken
__________________
Roy and Carolyn
I claim Horse Creek Country in Southern Ill - Momabear is from North Texas
We live in King George VA
RETIRED DOD DOAF DON CONTRACTOR Electronics Tech 42YRS
"We're burning daylight" - John Wayne
2008 STARCRAFT 14RT OFF-ROAD POPUP with PD9260C and three 85AH 12VDC batteries
2010 F150 FX4 5.4 GAS with 3.73 gears - Super Cab - Towing Package - 2KW Honda EU2000i Gen
K9PHT (since 1957) 146.52Mhz
"We always have a PLAN B"
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11-17-2017, 06:36 PM
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#8
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Junior Member
Join Date: Nov 2017
Location: Madras
Posts: 15
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Thank you for all the ideas!
My husband read all the good suggestions, and checked them out. Finally found a loose cable. Thank you to all for the help!
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11-17-2017, 08:26 PM
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#9
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Senior Member
Join Date: Dec 2014
Location: FL
Posts: 11,281
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Thanks for letting us know.
__________________
Sherm & Terry w/rescue Eydie (min Schnauzer) & Charley (std Poodle)
SOLD:2015 Jay Flight 27RLS, GY Endurance (E), Days: 102 '15, 90 '16, 80 '17, 161 '18, 365+ '20
SOLD: 2006 Ford F350 PSD, 4WD, CC, LB, SRW, Camper pkg., 375,000mi
Full timing: Some will think you're crazy, some will be envious, just enjoy the freedom!
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