Thread Tools Search this Thread Display Modes
Old 07-07-2014, 11:15 AM   #1
New Member
1977 Argosy 22
Portland , Oregon
Join Date: Jul 2013
Posts: 2
Half my Electrical is Down - Help

While camping this weekend at the Oregon Coast, I lost power to an entire circuit on my 1977 Argosy 22.

While plugged into 120v, we came back after a day at the beach to find our water pump, various lights on the port side of the trailer and our Fantastic fan were not working, completely dead like a blown fuse. All other appliances and lights work.

I diagnosed by checking all fuses, flipping all breakers even though none were tripped and nothing came back on. I then disconnected the 120v plug to go back to 12v and nothing came on. I then checked the fuses up front for the trailer lights and inspected the fuse on the water pump and fantastic and everything checked out. I am at a loss of what to do next or if there is something I missed.

Also of concern was while plugged in we were at 13 volts on my meter and after unplugging I dropped to 10.7v in a quick time. I believe my batteries are in good order as they are new and I kept them well maintained over the winter. No issues before this weekend. Does this maybe indicate a short? Would a short drain batteries?

Please help.

Cmonster77 is offline   Reply With Quote
Old 07-07-2014, 11:28 AM   #2
Rivet Master
r carl's Avatar
Vintage Kin Owner
Lin , Ne
Join Date: Dec 2009
Posts: 1,965
It would be a good idea to get your batteries tested, at least you would know their condition.

The higher your expectations the fewer your options.
r carl is offline   Reply With Quote
Old 07-07-2014, 12:14 PM   #3
Rivet Master
Melody Ranch's Avatar

1956 22' Flying Cloud
1953 32' Liner
1955 22' Safari
Valley View , Texas
Join Date: Jan 2006
Posts: 3,929
Images: 78
Send a message via Skype™ to Melody Ranch
Were any other 12 v circuits powered? It could be a ground for the one circuit you mentioned. If all 12v is out...your converter is at fault most likely. The 120v comes into that point and then converts to 12v. It then goes to the circuits you have. Each of those circuits has to have a ground...either at the appliance individually or a main/common.
"If it can't be reduced, reused, repaired, rebuilt, refurbished, refinished, resold, recycled or composted
then it should be restricted, redesigned or removed from production."
Melody Ranch is offline   Reply With Quote
Old 07-07-2014, 12:26 PM   #4
Rivet Master
A W Warn's Avatar

2000 25' Safari
1999 34' Excella
Davidson County, NC , Highlands County, FL
Join Date: Aug 2006
Posts: 2,049
Check the output at the converter. And, there may be a fuse mounted directly on the end of the converter. If the converter is ok, there may be a breaker or fuse in the 12v line from the converter before it attaches to the fuse box.
2014 Silverado 1500 5.3L maximum trailering package (yes, I'm towing the 34')
A W Warn is offline   Reply With Quote
Old 07-07-2014, 01:38 PM   #5
New Member
1977 Argosy 22
Portland , Oregon
Join Date: Jul 2013
Posts: 2
I do have other 12v fixture operating so it does seem to be only one circuit affected. It sounds like I can rule out the converter? Does the 12v batteries go through the converter output also?

I did check the fuse on the converter, two blade fuses and the main fuse to the fuse box. All checked out. I also checked all the other fuses in the fuse box, all good.

I will focus on grounding issues.

So I know electrical is weird and unpredictable, but to loose a ground on a fixture days after travel, rather than during travel seems like odd timing. I am wondering in there could be something specific that could have shorted in the water pump or fan. Any common issues on these devices that could lead to this issue?

Thanks again for all the help.
Cmonster77 is offline   Reply With Quote
Old 07-07-2014, 01:54 PM   #6
Site Team
Aage's Avatar
1974 31' Sovereign
Ottawa , ON
Join Date: May 2008
Posts: 11,169
Images: 25
I don't know how you are checking fuses, but remember that they can look good and be bad (blown).

Find a known good one and re-check your fusebox.

Also, do a careful close inspection of the fuse holders, if you are using the little glass fuses with metal caps on each end. Look for corrosion on the holders. Mine got so badly corroded they lost their tension and heated up like a son of a gun due to higher resistance.
If it's to be, it's up to me.
Aage is offline   Reply With Quote
Old 07-07-2014, 02:52 PM   #7
Rivet Master
TG Twinkie's Avatar
1974 Argosy 26
Morrill , Nebraska
Join Date: Nov 2009
Posts: 4,675
Images: 2
Blog Entries: 5
The fuses on the converter only blow if you connect it with reverse polarity.
13 volts sounds like the converter is working. But the 10 volt reading says dead battery(s). You may not be charging the batteries. Look for a fuse on the negative side of the circuit. Most are mounted separately on the skin of the coach .
You may have a bad connection at the fuse holder, meaning where the wires are attached. You may have a blown fuse or a bad fuse holder.
Even if the fuse looks good. Put a new one in and see what happens.
Knowledge: "A gift to be shared. A treasure to receive."
TG Twinkie is offline   Reply With Quote
Old 07-07-2014, 03:00 PM   #8
Rivet Master
mayco's Avatar

1982 31' Airstream 310
champaign , Illinois
Join Date: Jun 2013
Posts: 1,936
I agree with Twinkie, check to see that the connections at your 12v circuit panel are all tight. Sounds to me like something has come loose. Check and tighten the screws on the clamp connectors at the panel.

mayco 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
Awnings: are they really up/down/up/down ... Belbein On The Road... 6 06-08-2014 01:55 PM
Electrical out in back half of Airstream gitrokr Electrical - Systems, Generators, Batteries & Solar 5 05-25-2014 08:18 PM
Chasing Down Electrical Problems gopherbob7 Electrical - Systems, Generators, Batteries & Solar 3 09-03-2012 10:20 AM
HELP! Electrical system in a 1983 is down, and I am at Burning Man! scotdo Classic Motorhomes 9 08-28-2010 11:59 PM
Electrical System Down because of 240 Volts camachito Batteries, Univolts, Converters & Inverters 4 10-16-2009 07:28 AM

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 09:21 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.