Thread Tools Search this Thread Display Modes
Old 07-17-2011, 09:51 AM   #1
Rivet Master
3 Dog Nite's Avatar
Currently Looking...
1989 34.5' Airstream 345
Cleveland , Tennessee
Join Date: Jul 2007
Posts: 787
AC keeps tripping breaker - solved

About 3 weeks ago I put a replacement fan motor in a Coleman Mach III. The AC ran great while outside temperatures were 85 & lower. The air coming out of the vents didn't seem as cold as it used to be. I just figured the new motor ran faster & was more efficient. When the temps got hotter, the breaker would trip. I replaced the breaker as it was original to the 1976 SOB. I also replaced the 2 capacitors while changing the motor. 1st breaker trip would be at 15 minutes, After a couple of resets, the time was reduced to 10 minutes, I was checking everything electrical that I could think of.
While up on the roof, I spilled the beverage I was also working on. The liquid ran straight for the tools I had laid out. after picking them out of the liquid, I put my hand near the shroud to let the air dry my hand. Huh, there was no air coming out although I could see the fan spinning. The fan blade was turning in the right direction.
It turns out I had put the fan blade too far into the metal shroud to do any good. It was just blowing the air around inside the shroud & not cooling the AC radiator. I moved the fan blade so it sat in the shroud opening, but 2/3 of the blade was on the outside.
Wow, now i get a lot of hot air blowing out of the shroud. The inside air is just as cold as I remember it. And the breaker hasn't tripped once. If you go to replace a motor, take a picture of measurement to make sure the blade goes where it belongs.

"Sometimes I wonder if the world is being run by smart people who are putting us on, or by imbeciles who really mean it." Mark Twain

AIR 22749 WBCCI 2349 NOVA TAC TN-6
1989 345 LE Classic Motorhome
3 Dog Nite 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
A/C Pops Breaker RichWoodward Furnaces, Heaters, Fireplaces & Air Conditioning 28 07-19-2011 05:57 PM
No Power To A/C (power at breaker) vhariable Electrical - Systems, Generators, Batteries & Solar 3 06-28-2011 05:54 PM
Circuit Constantly Tripping columbus69 Electrical - Systems, Generators, Batteries & Solar 11 04-14-2011 07:08 AM
Charge line breaker stuck open AirHome Batteries, Univolts, Converters & Inverters 3 04-13-2011 10:18 AM
Converter trips breaker Wolfie Electrical - Systems, Generators, Batteries & Solar 5 04-02-2011 10:08 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 12:16 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.