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03-17-2019, 01:26 PM
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#1
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Senior Member
Join Date: Apr 2018
Location: Charlotte, NC
Posts: 105
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Problem with my TV 7-pin plug?
The 7 pin plug on my TV doesn't seem to be suppling power to my E-Pro 19 FBS. I am getting power to my running, brake and signal lights. I checked my TV's fuze and it looks good. Any recommendations on what to do next?
Backstory: I picked up my RV from Camping World on Friday. It went in for minor warranty work. It appears someone turned on battery power AND my heater. AND left both on. On Friday my RV battery was completely dead. The battery has been charging it in my garage for over 18 hours now but it doesn't indicate that it is actually charged yet.
Should I bug CW for a new battery? it is only ten month old.
John
__________________
2018 Forest River Flagstaff E-PRO 19FBS
2107 Toyota Highlander
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03-17-2019, 01:30 PM
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#2
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Senior Member
Join Date: Feb 2018
Location: Monticello, IL
Posts: 1,696
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Not sure what to suggest regarding your 8-pin issue other than asking if you’ve actually verified if it’s supplying power or not by using a DVOM.
Regarding the battery, it has a warranty. CW should replace it under the battery warranty without issue if it’s refusing to charge or hold a charge.
__________________
2017 GMC Canyon - CCLB, 4x4, 2.8L Duramax, ARE Z-series shell
2013 Shamrock 21SS
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03-17-2019, 01:35 PM
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#3
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Senior Member
Join Date: Jul 2017
Posts: 4,056
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Quote:
Originally Posted by NC_RVer
The 7 pin plug on my TV doesn't seem to be suppling power to my E-Pro 19 FBS. I am getting power to my running, brake and signal lights. I checked my TV's fuze and it looks good. Any recommendations on what to do next?
Backstory: I picked up my RV from Camping World on Friday. It went in for minor warranty work. It appears someone turned on battery power AND my heater. AND left both on. On Friday my RV battery was completely dead. The battery has been charging it in my garage for over 18 hours now but it doesn't indicate that it is actually charged yet.
Should I bug CW for a new battery? it is only ten month old.
John
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What's your TV . not all 7 pins are wired with 12v supply count the wires heading into it and make sure there are 7 . then test to 12 v acc. pin to see if it live .
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03-17-2019, 01:52 PM
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#4
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Site Team
Join Date: Jan 2007
Location: Goodyear, Arizona
Posts: 33,845
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You need to test the 7 pin plug with a multimeter.
Seriously doubt CW is going to replace the battery for free, after 10 months. How will you prove that they were at fault? Especially if your tow vehicle has not been supplying a charge.
__________________
Dan-Retired California Firefighter/EMT
Shawn-Musician/Entrepreneur/Wine Expert
and Zoe the Wonder Dog(R.I.P.)
2016 PrimeTime TracerAIR 255, pushing a 2014 Ford F150 SCREW XTR 4x4 3.5 Ecoboost w/Max Tow Package
4pt Equal-i-zer WDH and 1828lbs of payload capacity
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03-17-2019, 01:54 PM
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#5
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Senior Member
Join Date: Feb 2018
Location: Monticello, IL
Posts: 1,696
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Quote:
Originally Posted by bikendan
You need to test the 7 pin plug with a multimeter.
Seriously doubt CW is going to replace the battery for free, after 10 months. How will you prove that they were at fault?
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Battery warranty. If CW didn’t sell them the trailer and isn’t a reseller of the battery brand then the OP will have to find a local reseller to have it replaced under warranty.
__________________
2017 GMC Canyon - CCLB, 4x4, 2.8L Duramax, ARE Z-series shell
2013 Shamrock 21SS
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03-17-2019, 02:16 PM
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#6
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Site Team
Join Date: Jan 2007
Location: Goodyear, Arizona
Posts: 33,845
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Quote:
Originally Posted by DieselDrax
Battery warranty. If CW didn’t sell them the trailer and isn’t a reseller of the battery brand then the OP will have to find a local reseller to have it replaced under warranty.
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My bet is that's what CW will tell the OP. CW isn't going to replace it, if they stay true to their business model.
__________________
Dan-Retired California Firefighter/EMT
Shawn-Musician/Entrepreneur/Wine Expert
and Zoe the Wonder Dog(R.I.P.)
2016 PrimeTime TracerAIR 255, pushing a 2014 Ford F150 SCREW XTR 4x4 3.5 Ecoboost w/Max Tow Package
4pt Equal-i-zer WDH and 1828lbs of payload capacity
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03-17-2019, 03:45 PM
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#7
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Senior Member
Join Date: Jul 2017
Posts: 4,056
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Quote:
Originally Posted by bikendan
You need to test the 7 pin plug with a multimeter.
Seriously doubt CW is going to replace the battery for free, after 10 months. How will you prove that they were at fault? Especially if your tow vehicle has not been supplying a charge.
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If the unit was new and if bought at CW they installed the battery and they sale batteries . so they should cover battery warranty regardless of what caused the battery to go bad . if it's interstate which they do sale i think one yr warranty so if it fails a load test . yada yada . he can get a new one
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03-17-2019, 04:15 PM
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#8
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Site Team
Join Date: Oct 2014
Posts: 15,300
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Not sure about the Toyota, but some TV's also have a relay in the 12V aux line to prevent the RV from draining the TV battery when parked for a while. Did you try the Aux pin with the TV running?
__________________
2015 Freedom Express 248RBS
TV 2015 Silverado HD2500 Duramax
TST Tire Monitors
Honda 2000I + Companion
2 100W solar panels
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03-17-2019, 05:51 PM
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#9
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Senior Member
Join Date: Apr 2018
Location: Charlotte, NC
Posts: 105
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I should have added to my OP that CW did test the TV end of the seven-pin plug. Their tester indicated that power wasn't going out (to charge the RV battery). All the other functions, outside lights, brakes, blinker were working.
The inside lights were working when I dropped it off. When I entered my RV after the service rep plugged me into shore power, the lights came on and the heater too. That lead me to believe a service technician ran the RV off battery power and had the heater on too. And then left both on draining the battery.
The only repairs I had done were:
1. Replace a USB charger
2. Replace the stove top fan motor.
3. Replace an outlet plug cover.
And they did their 21 point annual inspection.
I imagine it took a technician about 20 minutes to do everything. Yet it took 32 days before I got my RV back. I'm only about 15 minutes away from CW.
John
__________________
2018 Forest River Flagstaff E-PRO 19FBS
2107 Toyota Highlander
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03-17-2019, 06:18 PM
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#10
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Senior Member
Join Date: Aug 2014
Location: Northern KY
Posts: 5,725
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actually only minimal power 12VDC supplied thru the 7 pin connector to the RV... not nearly enough to charge a dis-charged battery in the RV, even after hours of driving...
this topic is covered in a number of other threads about charging off tow vehicle while driving...
the short answer is DON"T count on it!
__________________
"nothing can now be believed which is seen in a newspaper. Truth itself becomes suspicious by being put into that polluted vehicle."
Thomas Jefferson to John Norvell pg. 2, June 11, 1807
2014 Shamrock 183
2014 RAM 1500 Bighorn Crew Cab, HEMI, 3.21 gears, 8 Spd, 4X4 TST TPMS
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03-17-2019, 07:33 PM
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#11
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Site Team
Join Date: Nov 2011
Posts: 4,499
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I had a problem with my tundra factory 7 pin plug. Brakes quit working. I checked the pin that supplied power to the brakes and had no power there. All wires were found to be good.
But the wire had corroded and lost contact inside the the sealed part of the outlet. I had already replace the brake controller with no improvement before replacing the 7 pin outlet on the truck.
Check the out really well for internal corrosion.
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2018 Forester 3011 DS
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03-18-2019, 01:26 PM
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#12
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Senior Member
Join Date: Nov 2017
Posts: 1,756
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Simple enough test the oulet pin then test the wire just behind the outlet and keep going as needed. Cheaper than throwing parts at it.
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03-18-2019, 02:03 PM
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#13
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Senior Member
Join Date: Oct 2015
Location: Wisconsin/Florida
Posts: 1,908
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Seeing as this has not been mentioned before, here comes. With many TVs, the 12 volt power to the trailer is activated through the ignition. So, when checking for power, the ignition would have to be on. The purpose is to prevent the TV battery from running down when the trailer is connected and the TV is shut off.
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03-18-2019, 02:59 PM
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#14
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Just as confused as you
Join Date: Aug 2013
Location: south central Wisconsin
Posts: 5,108
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Another thing to take into consideration is if you have Tow/Haul mode, most vehicles will increase the amount of power going to the trailer. If you don't use Tow/Haul mode the boost is not activated.
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Richard & Jill
2014 Flagstaff 832IKBS Classic Super Lite
2018 Silverado 1500 Crew Cab Z71 4WD All Star Edition
Camping since 1989, Seasonal since 2000.
Car Shredder Op/Tech, Scrap Metal Recycling - retired
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03-18-2019, 03:00 PM
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#15
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Senior Member
Join Date: Nov 2017
Posts: 1,756
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You are correct that’s why I said keep going as needed.
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03-18-2019, 03:07 PM
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#16
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Senior Member
Join Date: Feb 2017
Location: SW Ohio
Posts: 1,694
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Also some trucks will need a relay and/or fuse installed to activate the +12v at the connector
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2024 Artic Fox 3018 5th Wheel
Grand Design 2800BH TT 2021 - for sale
Prior TT 2017 Flagstaff 831CLBSS Classic Ultra lite - SOLD 5/21
TV 2024 F350 DRW - on order
Prior TV 2017 F150 6.5' bed 3.5 Eco-boost Max tow 1800lbs payload
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03-18-2019, 03:15 PM
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#17
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Senior Member
Join Date: Feb 2018
Location: Monticello, IL
Posts: 1,696
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Quote:
Originally Posted by llr
Also some trucks will need a relay and/or fuse installed to activate the +12v at the connector
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In his original post they said they checked that, but it's possible the fuse is there but the relay is missing some something along those lines.
All we can do is give them pointers and hope they can figure it out.
__________________
2017 GMC Canyon - CCLB, 4x4, 2.8L Duramax, ARE Z-series shell
2013 Shamrock 21SS
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03-18-2019, 03:22 PM
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#18
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Senior Member
Join Date: Jun 2018
Posts: 191
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Quote:
Originally Posted by NC_RVer
The 7 pin plug on my TV doesn't seem to be suppling power to my E-Pro 19 FBS. I am getting power to my running, brake and signal lights. I checked my TV's fuze and it looks good. Any recommendations on what to do next?
Backstory: I picked up my RV from Camping World on Friday. It went in for minor warranty work. It appears someone turned on battery power AND my heater. AND left both on. On Friday my RV battery was completely dead. The battery has been charging it in my garage for over 18 hours now but it doesn't indicate that it is actually charged yet.
Should I bug CW for a new battery? it is only ten month old.
John
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FWIW:
Most battery chargers have a safety circuit that protects the charger when connected to a completely dead battery.
In order to get a completely discharged battery you will need to take it to someone who specializes in batteries and has a charger capable of charging a battery that is completely discharged.
Assuming that the battery can be charged it will most likely have a shortened lifespan.
Bob
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03-18-2019, 03:51 PM
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#19
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Senior Member
Join Date: Jul 2018
Posts: 414
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I had a 2002 Highlander that did not have a factory tow package. I got a quote from a hitch installer that he would install the hitch and a 7 pin connector, but the 12 volt charge circuit would not be provided, nor the electric brake wiring.
I wound upinstalling the hitch and wiring myself. I did have to run my own wires for the brakes and charge. That Highlander was not rated to tow more than 3500 pounds, so there was no provision for brakes/battery.
Not sure about the capacity of the newer ones.
My 2003 Sequoia came prepped with all wires active, once I installed the fuses and relays In the fuse/relay box under the hood. The relays and fuses were in a sealed bag in the glove box with a wire for connecting a brake controller to a harness under the dash.
Others are correct, not much current flows thru that factory battery charge wire.
__________________
2018 Surveyor 264RKLE
Retired
Location depends on weather and state plandemic rules.
Most coincidences are carefully planned
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03-18-2019, 07:48 PM
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#20
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Senior Member
Join Date: Jan 2018
Location: Raleigh, NC
Posts: 9,616
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Or...
Quote:
Originally Posted by HappyTrav
FWIW:
Most battery chargers have a safety circuit that protects the charger when connected to a completely dead battery.
In order to get a completely discharged battery you will need to take it to someone who specializes in batteries and has a charger capable of charging a battery that is completely discharged.
Assuming that the battery can be charged it will most likely have a shortened lifespan.
Bob
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Or simply put on jumper cables from your vehicle and let it charge for 20 minutes. That will put enough charge on the "dead" battery that the charger will recognize it.
{RANT}
After using battery chargers for over 50 years, I got one from Harbor Freight that had this "safety" feature. I was disgusted. What happens if you simply leave the car lights on overnight? Easy to run an extension cord and hook up the battery charger. Not so easy to jump it when the dead car is nose-first into the single-wide driveway. Ultimately had to put two pairs of cables in series.
This feature was invented because they thought people were too dumb to set the 6/12 volt switch into the proper position so they were going to automatically decide. If the voltage is over 8 volts they would charge as if 12 volts; if 4-8 volts, charge as if 6 volts. If below 4 volts, refuse to operate. It wasn't the users that were dumb--it was the design engineer. He didn't need to punt if it were below 4 volts. All he had to do was charge at constant current (not voltage) for 20 minutes and then re-sample the voltage. This product is truly a designed-by-idiots product.
{/RANT}
Larry
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