RV.Net Open Roads Forum: Class A Motorhomes: inside lights dim

RV Blog

  |  

RV Sales

  |  

Campgrounds

  |  

RV Parks

  |  

RV Club

  |  

RV Buyers Guide

  |  

Roadside Assistance

  |  

Extended Service Plan

  |  

RV Travel Assistance

  |  

RV Credit Card

  |  

RV Loans

Open Roads Forum Already a member? Login here.   If not, Register Today!  |  Help

Newest  |  Active  |  Popular  |  RVing FAQ Forum Rules  |  Forum Posting Help and Support  |  Contact  

Search:   Advanced Search

Search only in Class A Motorhomes


Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 2  
Next
Sponsored By:
str8shooter_mn

Minnesota

New Member

Joined: 06/01/2012

View Profile



Good Sam RV Club Member

Offline
Posted: 10/08/19 08:15pm Link  |  Quote  |  Print  |  Notify Moderator

I just replaced the coach batteries, 2-6v deep cycle. We are plugged into shore power. After a while our inside lights get very dim. Disconnected converter and checked out put. It is at 13.62 VDC as manual says it should be. Lights get bright again after starting coach. Running off of alternator Voltage.
What am I missing? Is there a relay somewhere that is supposed to switch from alternator to converter power to charge batteries when coach is turned off? Old batteries were shot, wouldn't take a charge.

DFord

Near St Louis, MO

Senior Member

Joined: 12/16/2001

View Profile





Offline
Posted: 10/08/19 08:32pm Link  |  Quote  |  Print  |  Notify Moderator

It would be most helpful if you show the year and model of your MH. Without any of that, any answer you'd get would be a guess.


Don Ford
2004 Safari Trek 31SBD (F53/V10 20,500GVW)
'09 HHR 2LT or '97 Aerostar MiniVan (Remco driveshaft disconnect) for Towed vehicles
BlueOx Aventa II Towbar - ReadyBrake Inertia Brake System


enblethen

Moses Lake, WA

Senior Member

Joined: 01/05/2005

View Profile






Posted: 10/08/19 08:37pm Link  |  Quote  |  Print  |  Notify Moderator

Many Class As have a charge relay that enrgizes when the coach is running. This is to charge batteries.
Do you have an inverter/charger or a converter? Make and model?
You could have a loose connection causing lower then normal voltage from the batteries and the inverter/charger or converter.
Make and model would be beneficial!


Bud
USAF Retired
Pace Arrow

2003 Chev Ice Road Tracker


str8shooter_mn

Minnesota

New Member

Joined: 06/01/2012

View Profile



Good Sam RV Club Member

Offline
Posted: 10/08/19 08:47pm Link  |  Quote  |  Print  |  Notify Moderator

Coach is a 2011 Fleetwood bounder classic 36R on a workhorse chassis. Has a converter WFCO WF-9800 series, 65 AMP

* This post was edited 10/08/19 08:54pm by str8shooter_mn *

ScottG

Bothell Wa.

Senior Member

Joined: 02/25/2005

View Profile


Offline
Posted: 10/08/19 09:00pm Link  |  Quote  |  Print  |  Notify Moderator

Absolute classic sign of a dying converter.


Scott, Grace and Wesly
2003 Dodge 3500 4x4, 6 speed Cummins.
2018 Silver Fox 32A.
H0NDA eu2000i

Flute Man

Payson, Arizona

Full Member

Joined: 03/21/2019

View Profile


Offline
Posted: 10/08/19 09:11pm Link  |  Quote  |  Print  |  Notify Moderator

With everything hooked up like before with the lights dim I would make that same voltage test. Please let us know what the results of that voltage test are.


Jerry Parr
05 Mandalay 40B
Cat C7 350
04 Honda CR-V
Ham Radio K7OU
Jrparr32@gmail.com
602-321-8141
Full-timer

ArchHoagland

Clovis, CA, USA

Senior Member

Joined: 11/28/2004

View Profile



Good Sam RV Club Member

Offline
Posted: 10/09/19 02:00am Link  |  Quote  |  Print  |  Notify Moderator

Was it working OK before you changed the batteries?


2004 Monaco La Palma 36DBD
Workhorse W22 8.1 Gas Allison 1000, 7.1 mpg

2000 LEXUS RX300 FWD 22MPG 4020 LBS
US Gear Brakes


Ivylog

Blairsville, GA and WPB, FL.

Senior Member

Joined: 06/30/2004

View Profile


Offline
Posted: 10/09/19 04:28am Link  |  Quote  |  Print  |  Notify Moderator

Dim lights = low voltage = charger/converter not charging. No load voltage of the converter doesn’t tell you much...what’s the voltage when hooked to the batteries?


This post is my opinion (free advice). It is not intended to influence anyone's judgment nor do I advocate anyone do what I propose.

08 HR Navigator 45'
Sold 04 Dynasty after 14 great years.
How I tow.
Towing a Prius without a dolly
How I spend the winter.

str8shooter_mn

Minnesota

New Member

Joined: 06/01/2012

View Profile



Good Sam RV Club Member

Offline
Posted: 10/09/19 05:40am Link  |  Quote  |  Print  |  Notify Moderator

Voltage before changing batteries was 11.3 volts after 3 hour charge at 10 amps. Batteries were disconnected during charge.
Voltage of batteries after replacement was 12.5 VDC with converter connected

dougrainer

Carrolton, Texas

Senior Member

Joined: 06/11/2007

View Profile


Offline
Posted: 10/09/19 06:01am Link  |  Quote  |  Print  |  Notify Moderator

str8shooter_mn wrote:

Voltage before changing batteries was 11.3 volts after 3 hour charge at 10 amps. Batteries were disconnected during charge.
Voltage of batteries after replacement was 12.5 VDC with converter connected


Either the Converter is bad or there is a fault in the charge wiring from the Converter to the batteries. Doug

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 2  
Next

Search:   Advanced Search

Search only in Class A Motorhomes


New posts No new posts
Closed, new posts Closed, no new posts
Moved, new posts Moved, no new posts

Adjust text size:

© 2019 CWI, Inc. © 2019 Good Sam Enterprises, LLC. All Rights Reserved. | Terms of Use | PRIVACY POLICY | YOUR PRIVACY RIGHTS