Converter troubleshooting help: Scamp 13' 2002 - Fiberglass RV


Reply
 
Thread Tools Search this Thread Display Modes
 
Old 03-17-2013, 01:14 PM   #1
Member
 
Name: Shannon
Trailer: 2002 Scamp 13' Std, Rav4 - 6 cyl
Washington
Posts: 35
Converter troubleshooting help: Scamp 13' 2002

Wise Compadres and Road Warriors.....

Having some weird electrical issues between battery and shore power on my converter and wonder if anyone has some advice.... (Full disclosure: I know very little about the wiring system in the Scamp; have been reading and studying for a couple months now and learning, but...)

Centurion 3000 Converter 30A system

-When operating on battery only, 12V systems seem to work fine (lights, etc).

-When plugged into shore power, 120 systems work fine, but 12V systems (lights, plugs) begin to flicker and the Overload light on the converter comes on. Converter begins to hum and pulse (not fan). 12V lights flicker in time with the pulsing/humming. Even when all lights, appliances are off the converter still shows Overload and is humming and pulsing. I do not know if battery is charging.

-Checked ground wires both going into converter and attached to trailer frame. Seem solid. Have checked fuses in panel, up front, in the stows, etc.

I have read that the Centurion 3000 has a circuit board that goes out that can be replaced (almost as much as a new converter) and can display same symptoms. But also a loose wire in systems somewhere can display the same symptoms. I want to be sure I have checked every thing possible before taking it to the shop. Shop is not close, nor convenient, will require significant planning, etc. to get there and will probably cost $$$ to have them replace and fix.

So.... any wise words or things to check that I might have missed? Not afraid to take everything apart and rummage around; just don't know what to rummage around for....

Thanks very much.

Shannon
__________________

__________________
Shannon Thompson is offline   Reply With Quote
Old 03-17-2013, 06:19 PM   #2
Senior Member
 
Thomas G.'s Avatar
 
Name: Kinga DeRode
Trailer: For Sale Or Rent
Rooms to Let 50 Cents
Posts: 5,103
It almost sounds like there is a short and a circuit breaker is kicking off and resetting. Can you use an ammeter to test the load on the converter?

I don't understand why there would be a short present on AC, but would not be there on battery power only, unless the circuit is different with AC present (like a relay actuated internal to the converter.)
__________________

__________________
UHaul and Burro owners, join the UHaul Campers on Facebook. https://www.facebook.com/groups/529276933859491/
Thomas G. is offline   Reply With Quote
Old 03-17-2013, 06:28 PM   #3
Senior Member
 
Name: bob
Trailer: 1984 u-haul ct13; 1996 Casita 17 Spirit Deluxe; 1946 Modernistic teardrop
New York
Posts: 4,331
You may try disconnecting any 12 volt lights one at a time to see if there is a problem with one of them, although I realize that may not be easy. Maybe do it by pulling one fuse at a time, if there is more than one. In general, disconnect anything electrical, one at a time or whatever is possible, to see if the problem changes.
__________________
mary and bob is offline   Reply With Quote
Old 03-17-2013, 07:08 PM   #4
Senior Member
 
Jared J's Avatar
 
Name: Jared
Trailer: 1984 19' scamp
Kansas
Posts: 1,610
I don't know that converter, but if it's possible, I would pull all fuses or whatever it has to stop all 12v power going out of it, and then put an analog meter on it. If the needle is sweeping all over the place, you know it's the converter and not wiring then. If you don't have a analog meter, wire a single bulb straight into it. If you have steady power, you know it's a wiring problem. If the meter or bulb is pulsing with everything else unhooked, it's a converter issue.

If I have to troubleshoot a system, I prefer to split in half right off the bat, rather than check individual parts.

Considering it works with battery only, I'm betting it is going to show in the converter. How you tell what part of the converter is beyond me. At that point, I would just chuck a new one in. I just put a pd4045 in, and love it, although the instructions were lacking, their customer service is great.
__________________
Jared J is online now   Reply With Quote
Old 03-17-2013, 07:30 PM   #5
Senior Member
 
Thomas G.'s Avatar
 
Name: Kinga DeRode
Trailer: For Sale Or Rent
Rooms to Let 50 Cents
Posts: 5,103
Quote:
Originally Posted by Jared J View Post
......... At that point, I would just chuck a new one in. I just put a pd4045 in, and love it, although the instructions were lacking, their customer service is great.
I'm not sure if the OP has the skill set to replace it, but I agree that I'd replace it before I'd pop for a new circuit board.
__________________
UHaul and Burro owners, join the UHaul Campers on Facebook. https://www.facebook.com/groups/529276933859491/
Thomas G. is offline   Reply With Quote
Reply

Tags
scamp


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
Troubleshooting lights (my favorite: NOT.) Bobbie Mayer Electrical | Charging, Systems, Solar and Generators 26 07-16-2012 07:35 PM
Troubleshooting electric brakes Roy in TO Towing, Hitching, Axles and Running Gear 4 08-05-2009 07:34 AM
2002 16' Scamp Kevin K Classified Archives 0 07-08-2009 11:26 AM
Trailer wiring troubleshooting Cam A Problem Solving | Owners Helping Owners 9 07-20-2007 07:17 AM
LP Gas Troubleshooting Tool Pete Dumbleton Problem Solving | Owners Helping Owners 7 04-27-2007 05:51 PM

» Upcoming Events
No events scheduled in
the next 465 days.
» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 05:32 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.