Free 7 Day Trial RV GPS App RV Trip Planner Campground Reviews RV Maintenance Free 7 Day Trial ×


Reply
 
Thread Tools Display Modes
 
Old 09-20-2021, 07:40 PM   #1
Mini-Skoolie
 
Join Date: Apr 2021
Location: NJ
Posts: 33
Year: 2010
Coachwork: Collins
Chassis: Chevy Express
Engine: Duramax LMM
Renogy 40a DC to DC Charger, no green light

Well im stuck. It appears I have all of my wires ran correctly, the correct fuses in place and I'm getting power from the alternator side to the renogy charger (14.1v) but the unit itself is not powering on (no green light). I have the D+ line tapped into my ignition fuse. I also made up a test line and replaced the D+ line with a wire that went to a 12v battery to see if I could get a green light that way and it did not work.

Is my unit bad or am I missing something?

BMWNJ is offline   Reply With Quote
Old 09-20-2021, 11:47 PM   #2
Bus Nut
 
Join Date: Apr 2020
Location: Northern California (Sacramento)
Posts: 573
Year: 1999
Coachwork: El Dorado Fiberglass
Chassis: Ford E450
Engine: V10 Gas
I have one but I've not installed it yet. There are some troubleshooting youtube videos out there.

I would have done exactly what you've already done.
Rucker is offline   Reply With Quote
Old 09-21-2021, 12:05 AM   #3
Bus Crazy
 
Join Date: Sep 2018
Posts: 2,449
Year: 2007
Coachwork: Thomas Built
Chassis: Minotour
Engine: Chevy Express 3500 6.6l
I have a Renogy inverter-charger. It
Wasn’t working initially, but they know what dip switch settings to use
Danjo is offline   Reply With Quote
Old 09-21-2021, 04:45 AM   #4
Mini-Skoolie
 
Join Date: Apr 2021
Location: NJ
Posts: 33
Year: 2010
Coachwork: Collins
Chassis: Chevy Express
Engine: Duramax LMM
Quote:
Originally Posted by Danjo View Post
I have a Renogy inverter-charger. It
Wasnít working initially, but they know what dip switch settings to use
I forgot to mention the battery type im charging. I have lead acid deep cycle. All my dips are in the "on" position (down). I have 4 awg wire going from the bus side to the charger and 8 awg going from the charger into the house batteries. My wire runs are about 12-15 feet from the bus side and 3' from the charger into the house batteries. My D+ wire is 16 awg.

I saw they have a 1.4 version manual on their website (my unit came w 1.3) which is a little better than the one I have.

I've been going through youtube vids and other forum post but I'm not seeing much regarding no green light.
BMWNJ is offline   Reply With Quote
Old 09-21-2021, 07:57 AM   #5
Bus Crazy
 
Drew Bru's Avatar
 
Join Date: May 2016
Location: Grayson County, VA
Posts: 1,292
Year: 1996
Coachwork: Amtran
Chassis: International
Engine: DT466
Rated Cap: 65
woops, comment deleted.
__________________
Our Build: https://dazzlingbluebus.wordpress.com/
Drew Bru is offline   Reply With Quote
Old 09-21-2021, 09:08 AM   #6
Mini-Skoolie
 
Join Date: Apr 2021
Location: NJ
Posts: 33
Year: 2010
Coachwork: Collins
Chassis: Chevy Express
Engine: Duramax LMM
UPDATE: I figured out the problem. You need a ground on both ends of the unit. I came across that information on the blog posted below and it fixed my issue. I now have a green light on the unit and it is charging the battery. I will be adding a switch to the D+ line so I can kill power to it while the vehicle is operating and I dont need to charge the house batteries.


https://senormisterioso.wordpress.co...ravel-trailer/
BMWNJ is offline   Reply With Quote
Old 09-21-2021, 11:46 AM   #7
Bus Nut
 
Join Date: Apr 2020
Location: Northern California (Sacramento)
Posts: 573
Year: 1999
Coachwork: El Dorado Fiberglass
Chassis: Ford E450
Engine: V10 Gas
Quote:
Originally Posted by BMWNJ View Post
UPDATE: I figured out the problem. You need a ground on both ends of the unit. I came across that information on the blog posted below and it fixed my issue. I now have a green light on the unit and it is charging the battery. I will be adding a switch to the D+ line so I can kill power to it while the vehicle is operating and I dont need to charge the house batteries.


https://senormisterioso.wordpress.co...ravel-trailer/
Fantastic link and very detailed instructions-thank you for digging into this and sharing results!
Rucker is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Featured Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 06:47 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2021, vBulletin Solutions, Inc.