Go Back   iRV2 Forums > MOTORHOME FORUMS > MH-General Discussions & Problems
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
Thread Tools Search this Thread Display Modes
Old 10-17-2014, 09:50 PM   #1
Junior Member
National RV Owners Club
Join Date: Sep 2014
Posts: 3
Interior lights dim while on shore power

Hello all,

This is my first night at an RV park proper and though we are hooked up to 30 amp shore power and it is working for inside systems, the cabin lights began to dim severely after about an hour or so. After research, it seems that this could be a converter problem? Or for a National Tradewinds (2000) does the AC have to be hooked up to a full 50 amps for the converter to work properly? I'm a very new RV owner and even newer at understanding the systems and how they work - please keep answers extremely basic!! I am not even entirely sure that I know where my converter is... Help!

aviatrix90 is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 10-18-2014, 01:01 AM   #2
Senior Member
Skip426's Avatar

Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 11,954
Welcome to iRV2.
You should not have to be hooked to 50 amp. service to get the converter working properly, 30amp through an adaptor works fine on my, 50 amp. RV.
First thing would be to find your 110v power center and make sure all the circuit breakers are fully on.
My convertor/charger, is in the power cord bay. I'm sorry I can't say exactly where yours is.
If your batteries run too low the fridge may cut out , as the control panel operates on 12v, even when using 110v power. So I hope it's just a tripped breaker.

99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
Skip426 is offline   Reply With Quote
Old 10-18-2014, 06:24 AM   #3
Senior Member
Damon Owners Club
Workhorse Chassis Owner
Join Date: Mar 2009
Posts: 21,176
Ok.. Charging sequence:
There are many different types of converters
Single Stage: Output voltage remains constant, usually 13.6
Example of this is the Parallex 7300
Two Stage (Parallex 7300T note the addition of the T)
In this type the converter starts in BOOST mode, after a condition is met it switches to 13.6. The condition may be a timer, or it may be current, sensed voltage, based. on the 7300T it is a timer.

Three stage
In this type the converter starts in BOOST mode,, then switches to absorption and finally to float (13.6)

And 3-stage PLUS, this has at least one additional feature, For example one of the 3+ I have has a temperature sensor and adjusts all voltages based on battery temp... The other one does an auto-equalization burst after 20 hours of float (This will brighten the lights for like 15 minutes every 20 hours)

Converter modes:
OFF: no shore or generator power: Battery voltage (Full and resting that is about 12.6)
Float: usually about 13.6 volts
Boost: Varies from converter to converter but often 14.5 or so Amps up to full output of converter
Absorption: May be a bit higher voltage wise (or not) amps generally in the single digit range (10 or less).
Equalize: Voltage may be as high as 16 or more.

(On most 3-stage units Equalize is manually invoked by user, The Progressive Dynamics Charge Wizard units and the IOTA IQ4 are the exceptions that I know of. may be others)

IF after a couple hours (1-6) the lights dim and stay dimmed.. That is the converter dropping out of boost/absorption into float and 100% normal.

NOTE: Quality LED lights.. WILL not dim when this happens, they are current regulated.
Home is where I park it!
wa8yxm is offline   Reply With Quote
Old 10-18-2014, 07:00 AM   #4
Junior Member
Join Date: Sep 2013
Location: Ontario
Posts: 28
I had a the same issue where my lights would dim. I traced it to a bad WF-9800 55 amp converter. Opened converter and found burn marks on circuit board.
Also converter caused both coach batteries to boil over.

Replaced both batteries and converter and no more dimming lights.

2010 Four Winds Hurricane
2009 Chevy cobalt as toad.
norml is offline   Reply With Quote
Old 10-18-2014, 12:53 PM   #5
Senior Member
Damon Owners Club
Workhorse Chassis Owner
Join Date: Mar 2009
Posts: 21,176
That can do it too... Of course WFCO like one of my air conditioners and some tires which get called "CHINA BOMBS" is made in China.

As for my air conditioner.. Blew up last week, (Condenser fan came apart YES the one piece fan came apart, the blades went flying sounded like a bomb going off, Replaced fan with a PHYSICALLY identical Coleman fan.. Better materials though I suspect.)
Home is where I park it!
wa8yxm is offline   Reply With Quote
Old 10-21-2014, 01:43 PM   #6
Senior Member
Damon Owners Club
Join Date: Jun 2013
Location: Arizona
Posts: 143
I had the identical issue with our 96 Fleetwood Bounder. The Charger lost its "ability" to sense a charged battery. I purchased two new house battery's, and a new 55 Amp, from Errin at Powermaxconverters. Never had another issue.

Wb2IVU is offline   Reply With Quote

lights, power, shore power

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search
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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Chassis battery drain while plugged in to shore power cinbol RV Systems & Appliances 11 11-19-2014 06:20 AM
New Style Shore Power Exit Tony H RV Systems & Appliances 1 08-22-2014 02:45 PM
Charger for Solar & Shore Power??? yourpcgeek49 iRV2.com General Discussion 12 08-16-2014 05:14 PM
? about shore power cord ingram4868 Class C Motorhome Discussions 6 08-02-2014 11:15 PM
Shore power jmoffat Monaco Owner's Forum 4 02-10-2014 02:38 PM

» Virginia Campgrounds

Reviews provided by

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 08:00 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.