Thread Tools Search this Thread Display Modes
Old 04-16-2014, 08:49 PM   #1
2 Rivet Member
Severna Park , Maryland
Join Date: Mar 2008
Posts: 86
Converter, Furnace, Or Batteries

Got our 2009 28' Flying Cloud out of winter storage today and was testing systems. The trailer is plugged into AC power. Had the halogen lights on in the trailer and turned the furnace thermostat up enough to start it up. When the furnace fan started, the lights noticeably dimmed. The gas/burner firing and cutting off had nothing to do with it. I have a plug in analog AC voltage meter and the AC voltage to the trailer is fine.

Don't know if this is relevant; but, the batteries are starting their 5th season. Running the furnace was immediately knocking the DC voltage down to 12.4 volts and the batteries seemed fine running the power jack up and down earlier today.

Should be obvious by now that I'm electrically challenged and feel sure someone can give the me "order of business" to start isolating my problem. Thoughts and ideas will be appreciated.

sailorii is offline   Reply With Quote
Old 04-16-2014, 09:19 PM   #2
Rivet Master
SteveH's Avatar
2005 39' Land Yacht 390 XL 396
Common Sense , Texas
Join Date: Sep 2007
Posts: 5,282
I'd almost bet you need new batteries.


"To compel a man to subsidize with his taxes the propagation of ideas which he disbelieves and abhors is sinful and tyrannical."-- Thomas Jefferson
SteveH is offline   Reply With Quote
Old 04-16-2014, 09:32 PM   #3
Rivet Master
1974 Argosy 20
2014 20' Flying Cloud
Kooskia , Idaho
Join Date: Jul 2009
Posts: 4,592
Probably time for new batteries but your converter/charger may also be on it's last legs. The thing which makes me say that is the voltage you report of 12.4 under a load. The converter/charger should keep that up to 13.5 or 13.6 . You do have the USE/STORE switch in the USE position I hope. If you forgot that, all bets are off.
idroba is offline   Reply With Quote
Old 04-16-2014, 09:38 PM   #4
2 Rivet Member
2014 23' Flying Cloud
Reed Point , Montana
Join Date: Jan 2014
Posts: 99
I'd also bet you need new batteries, and this might be an excellent time to upgrade your converter to a 3 stage system.
Bigskyrider8 is offline   Reply With Quote
Old 04-18-2014, 02:44 PM   #5
2 Rivet Member
Severna Park , Maryland
Join Date: Mar 2008
Posts: 86
Thanks responders! At about 10pm my time, night before last, I posted my problem here. The next morning I had my answers. What a good resource this site is.

Yep, the batteries were toast. And, I had not already replaced the original converter. Replaced the batteries. Had the converter tested and the output was below spec. Before sundown yesterday, had a new multiple stage converter installed. Back in business!!
sailorii is offline   Reply With Quote

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
2 batteries outside and two batteries inside timmaah Electrical - Systems, Generators, Batteries & Solar 14 08-25-2011 07:18 AM
factory supplied converter and batteries rayandre Batteries, Univolts, Converters & Inverters 9 02-23-2011 05:47 AM
New converter and batteries flsafari Electrical - Systems, Generators, Batteries & Solar 19 04-30-2006 04:04 PM
Batteries Short...New Converter robandzoe Electrical - Systems, Generators, Batteries & Solar 25 03-22-2005 11:38 AM
Batteries..All about batteries FrankR Batteries, Univolts, Converters & Inverters 0 07-17-2002 09:05 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 04:24 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, Jelsoft Enterprises Ltd.

Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.