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

Go Back   Montana Owners Club - Keystone Montana 5th Wheel Forum > MOC Technical Forums > Repairs & Service
Click Here to Login

Reply
 
Thread Tools Search this Thread Display Modes
 
Old 05-18-2017, 07:03 PM   #1
mlh
Montana Master
 
Join Date: Oct 2004
Location: Salem
Posts: 7,528
M.O.C. #2283
Update Onan 4000 won't run

Some my remember my Onan wouldn't run unless the computer board was warm. In cold weather you could put a little heat on that board and it run prefect. We replaced the board same problem. The generator finally got to where it wouldn't run. We took it apart. They are hard to fix when they aren't broke.
What we found was the generator has 2 small brushes that a small amount of current goes through to excite the armature. The voltage varies from a volt or two to 60 volts depending on how many watts the generator needed to produce. The man that was doing the work took one look at the brushes and said your AC is bad and pulling too many amps. One of the brushes was 1/4 inche shorter than the other. Sure enough we checked the AC and it was pulling from 25 to 30 amps. It should have been pulling 11.6 amps. It was putting out cold air but the compressor was bad.
If your AC isn't working like you think it should you might put put an amp gage on it. You might do it even if it is working ok.
Lynwood
 
mlh is offline   Reply With Quote
Reply

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
Forum Jump

» Featured Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3
Disclaimer:

This website is not affiliated with or endorsed by Montana RV, Keystone RV Company or any of its affiliates. This is an independent, unofficial site.


All times are GMT -6. The time now is 11:00 PM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2024, vBulletin Solutions, Inc.