Journey with Confidence RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Take a Speed Test Free 7 Day Trial ×

Thread Tools Search this Thread Display Modes
Old 06-06-2023, 10:32 PM   #1
New Member
1971 29' Ambassador
Omaha , NE
Join Date: Jun 2023
Posts: 3
low voltage to some locations

First time poster here. I recently acquired a '71 ambassador in near original condition but had been sitting in the weeds for maybe 10yrs? PO stocked it well with mothballs so no obvious rodent issues but there is one particular electrical gremlin I can't seem to sort.

When connected to shore only (waiting on batteries to ship), all galley lights, bathroom light and door light work. A/C and vent fans also work.

However, neither the oven light, or sink light work. The oven light only dimly glows which clued me into a voltage issue. Sure enough, the oven light socket metered at ~1.5V and the sink light was the same. I also tested the breakaway supply wire and it too only measured 1.5V.

Does anyone have any clues about what might be going on here? If it was a missing battery issue I would suspect all lights/appliances would have this issue, not just a couple.

caedo is offline   Reply With Quote
Old 06-06-2023, 11:31 PM   #2
Rivet Master
Boxite's Avatar

2008 22' Safari
Spicewood (W of Austin) , Texas
Join Date: Mar 2015
Posts: 2,623
Corrosion at a connector, splice, or fuse.
Boxite is offline   Reply With Quote
Old 06-06-2023, 11:48 PM   #3
Site Team
richard5933's Avatar

1994 25' Excella
Waukesha , Wisconsin
Join Date: Sep 2020
Posts: 5,131
Images: 5
Also check your negative connections. There are a few places where the 12v system connects to the frame, and these get corroded. Once corroded the voltage will drop or not get through at all.

Also check the negative connections at/near the 12v fuse panel.
1994 Excella 25 Follow the build on Gertie!
1999 Suburban LS 2500 w/7.4L V8
1974 GMC 4108a - Custom Coach Land Cruiser (Sold)
richard5933 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
How low a voltage is too low??? SagaCapt Batteries, Univolts, Converters & Inverters 20 07-23-2019 06:43 AM
how low is too low AC voltage? WineStream Electrical - Systems, Generators, Batteries & Solar 64 07-16-2018 08:57 PM
need some locations from Overlanders.... stain General Repair Forum 6 06-20-2009 01:42 PM
Low Voltage Problem kellyw Electrical - Systems, Generators, Batteries & Solar 3 10-23-2002 06:35 PM

Featured Campgrounds

Reviews provided by


This website is not affiliated with or endorsed by the Airstream, Inc. or any of its affiliates. Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.

All times are GMT -6. The time now is 02:34 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2023, Jelsoft Enterprises Ltd.