Top Navigation  
 
U.S. Flag waving
Office Hours Momday - Friday  8 am - 5 pm Pacific 1-800-835-2418
 
Facebook   YouTube   Twitter
 
 
Backwoods Home Magazine, self-reliance, homesteading, off-grid

Features
 Home Page
 Current Issue
 Article Index
 Author Index
 Previous Issues
 Print Display Ads
 Print Classifieds
 Newsletter
 Letters
 Humor
 Free Stuff
 Recipes
 Home Energy

General Store
 Ordering Info
 Subscriptions
 Kindle Subscriptions
 ePublications
 Anthologies
 Books
 Back Issues
 Help Yourself
 All Specials
 Classified Ad

Advertise
 Web Site Ads
 Magazine Ads

BHM Blogs
 Ask Jackie Clay
 Massad Ayoob
 Claire Wolfe
 James Kash
 Where We Live
 Behind The Scenes
 Dave on Twitter
Retired Blogs
 Oliver Del Signore
 David Lee
 Energy Questions
 Bramblestitches

Quick Links
 Home Energy Info
 Jackie Clay
 Ask Jackie Online
 Dave Duffy
 Massad Ayoob
 John Silveira
 Claire Wolfe

Forum / Chat
 Forum/Chat Info
 Enter Forum
 Lost Password

More Features
 Contact Us/
 Change of Address
 Write For BHM
 Meet The Staff
 Meet The Authors
 Disclaimer and
 Privacy Policy


Retired Features
 Country Moments
 Links
 Feedback
 Radio Show


Link to BHM

Get Powered Up! Certified Energy Manager Jeff Yago answers your alternative energy questions

Wondering about a great new energy-saving device
you found on the Internet? Then CLICK HERE!

Sorry. Jeff no longer answers questions online.
This will remain as a searchable
resource for all BHM website visitors.



Archive for the ‘Polarity’ Category

 

Reverse Polarity Damage

Saturday, October 18th, 2008

Dear Jeff:

Last winter, with snow falling at a foot a day rate, I was forced to switch out my batteries. Due to the weather conditions, worried about the delivery man getting stuck in his two wheel drive, I did notice the small note on my Vanner Battery Equalizer Voltmaster Model 60-20A (run a 24 volt step-down to a 12 volt system) , suggesting to avoid Reverse Polarity damage I would need to disconnect the Ground Terminal first. As you likely surmised I failed to do so and the result is that I lost my DC service.

My question to you is: what damage did I do the whole system (Equalizer, Inverter, and Power Center) and what do I need to do to repair it?

Thanks,

Brooks Wilson

Brooks:

Hard to say what may have been damaged, but I do not think it is as bad as you expect. There is the possibility that the downstream 12 volt appliances may have been connected with 24 volt power, but most inverters have fuses or other safety circuits to shut them down if this they are connected to the wrong voltage or reversed polarity.

I would however, expect that any 12 volt lights may be toast. Bottom line, you will need to check everything out before starting up again.

Let us know how it turned out,

Jeff Yago

 
 


 
 

 
 
 
 
 
Copyright © 1998 - Present by Backwoods Home Magazine. All Rights Reserved.