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


HVAC, Appliances and Propane Systems Heating, Air Conditioning, Refrigerator, stove, propane systems and more.
Reply
 
Thread Tools Search this Thread Display Modes
 
Old 02-22-2010, 03:21 PM   #1
Senior Member
 
Neal and Bev's Avatar
 
Join Date: Feb 2010
Location: Nashville, Tn
Posts: 392
Default Noise and vibration in AC

When I turned on the air conditioner in our 2201 Hi-Lo, it had a very loud thumping noise and a vibration that shook the whole trailer. The higher the fan speed the faster and louder the noise was.

Needless to say I thought the worst, but hoped for the best. It turned out to be a simple fix. Here's what I found and what I did to fix it.

* Turn off the power to the AC unit and unplug it.

* Use a ladder to access the roof and removed the 4 screws holding the cover of the AC unit, the cover lifts off.

* I figured it had something to do with the fan motor and while I was wiggling the shaft to check the bearings and spinning the fan I saw a huge "Dirt Dobbers" nest in the blades of the fan. This was causing the fan to be out of balance. I also found that the mounting bracket that attached the fan motor to the AC housing had a loose screw. The out of balance fan was causing the fan to "bounce" where the screw was loose thus producing the thumping noise and the vibration.

* Using a flat blade screw driver gently scrape all the dirt out of the blades.

* Tighten up the loose screw in the mounting bracket and check all the others careful not to over tighten and strip or break them.

* Using a garden hose I sprayed out the inside of the AC housing to wash out all of the dirt and while I was at it I sprayed off the condenser.

* The drain holes are small in the AC housing so I gave it 30 minutes to drain and dry out good and then checked to be sure there was no standing water in it and then I put the cover back on it.

* I plugged up the AC and turned it on and it ran smooth and quiet!

Neal
Attached Images
File Type: jpg Ladder.jpg (95.2 KB, 33 views)
File Type: jpg Cover.jpg (94.7 KB, 32 views)
File Type: jpg Open.jpg (92.3 KB, 35 views)
File Type: jpg Dirt Dobber.jpg (92.9 KB, 35 views)
File Type: jpg Loose Screw.jpg (92.9 KB, 35 views)
__________________
2001 Hi-Lo 22TL
2010 F150
Neal and Bev is offline   Reply With Quote
Reply

« - | Testing for leaks »
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


» Featured Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3
Disclaimer:

This website is not affiliated with or endorsed by Hi-Lo Trailers Worldwide or any of its affiliates. This is an independent, unofficial site.


All times are GMT -5. The time now is 05:15 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
HiLoTrailerForum.com Copyright 2010
×