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Old 01-10-2009, 12:12 AM   #1
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Anyone have a high pitch squeal comming from the furnace?My furnace hasn't been run to many times being I just got the camper before Xmas and haven't camped in it yet.But there is a high pitch sound when the fan runs.I think it will quite down in time but I wonder if anyone else has had this problem and if so did it go away.It's a Surburban furnace in a 09 Cruiser.Thanks
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Old 01-10-2009, 02:46 AM   #2
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Sounds like dry bearings (even though it's new) or the motor/blower assy has an alignment problem. If too far from dealer, it shouldn't be that hard to pull the blower assy. Then you can hold the motor in your hand(s) and have someone else switch fan switch from Auto to On and back to Auto once it spins up. If no squeal, something is out of alignment or assy wasn't properly mounted. Good luck.

Note: I think you should have received the Suburban manual with your unit; this may contain a parts breakdown and will illustrate how to remove the blower assy. If not, try their website. **Get your heater's model number first.
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Old 01-10-2009, 07:59 AM   #3
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yes it could be dry bearings

ours is nice and very little noise and it is a 2005 27 ft.

also i wou;ld love to know how to put a picture on my signature

thank you have a great day

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Old 01-10-2009, 06:30 PM   #4
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Quote:
Originally Posted by vanhal
yes it could be dry bearings

ours is nice and very little noise and it is a 2005 27 ft.

also i wou;ld love to know how to put a picture on my signature

thank you have a great day


Vanhal, the first thing you have to do is create an account to a website like Photobucket (free online photo storage website). Next is to import any images from your C:\ or whatever drive that your pics are on to said website. Once you have a pic there, below that pic should be an image code, [img]%20something,%20something%20.jpg[/img]. Leave this browser window open but minimize it and open another browser window going to our CrossRoads forum, go to your Member Control Panel, then Profile. At the bottom of the page, there is a box called Signature. Maximize the 1st browser window and single click on the image code, this will highlight the code. Right click on the code and click "Copy". Minimize this browser, and the 2nd browser with your Profile should pop up. Now right click in the empty Signature box and click "Paste", then click on Signature Preview and a popup should open with the pic that you selected. You can also add text here with your name, camper type, vehicle type, etc, etc. We are limited to 200 Character count which includes spaces. So you would want to size your pic in Photobucket to Tiny (160x70 pixels) or there abouts.

Hope this helps.

PS, the BBcodes allows you to size and color your text in your Signature.
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Old 01-11-2009, 01:11 AM   #5
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I have found that it doesn't necessarily have to be a dry bearing, or, being out of alignment.
Our furnace blower at home will whistle or squeal at times. I have narrowed it down to-- sucking air from around the edges of the filter. Strange, but that's where our sueal is coming from.



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Old 01-11-2009, 12:07 PM   #6
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Originally Posted by Old Farmer
I have found that it doesn't necessarily have to be a dry bearing, or, being out of alignment.
Our furnace blower at home will whistle or squeal at times. I have narrowed it down to-- sucking air from around the edges of the filter. Strange, but that's where our sueal is coming from.


Old Farmer, I know it's semantics, but I would have thought that to be more of a whistle than a squeal. LOL.

I used to do A/C & refrigeration repair work years ago, so when trying to troubleshoot over the phone, emailor a forum, it really does make a difference as to the "type" of sound. If you're getting that much of a squeal or whistle from your return air filter, your filter may be undersized, the blower speed may be set too high or you may just need to add some self-stick foam insulation around the filter housing, then the suction would pull the filter into the foam.
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Old 01-12-2009, 11:09 PM   #7
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Old Farmer, I know it's semantics, but I would have thought that to be more of a whistle than a squeal. LOL.

I used to do A/C & refrigeration repair work years ago, so when trying to troubleshoot over the phone, emailor a forum, it really does make a difference as to the "type" of sound. If you're getting that much of a squeal or whistle from your return air filter, your filter may be undersized, the blower speed may be set too high or you may just need to add some self-stick foam insulation around the filter housing, then the suction would pull the filter into the foam.

Cobra909
With the amount of hearing loss I have, especially in the high frequencies range. I would be the last one to be able to tell the difference in the harmonics between a squeal and a whistle.
I'm just happy our furnace is working. 16 degrees below 0 here this morning.

Edited by: Old Farmer
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Old 01-13-2009, 02:00 PM   #8
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Yessir, after spending ~30 years around turbine generators and compressor sets, I know what you mean about hearing loss. -16!!! Way too cold for us Coonasses! Forecast for Friday was 18...now they've got it up to 25 for a low. Guess I'll only have to put the insulated coveralls on over 2 shirts and a jacket...I'll be able to leave the insulated underware in the drawer.
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