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Old 02-08-2016, 06:44 PM   #1
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Screeching furnace blower

Spring is almost here and weather may be welcoming to get to work on our 1997 Excel. So on my last trip, the furnace before it gets ready to turn off goes into a screech. So do I consider what? New blower? And I assume that is up around the galley area.
Thanx,
That is the main one to start thinking about.
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Old 02-08-2016, 06:54 PM   #2
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Replaced my motor in about 2 hours... Next time 30 minutes..
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Old 02-08-2016, 07:22 PM   #3
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So I need to think motor not blower, thanx,
Beth
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Old 02-08-2016, 07:50 PM   #4
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Mine did that as well. Can't recall the exact fix. I do remember it was minor.
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Old 02-08-2016, 08:58 PM   #5
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I also think of .... Belt?
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Old 02-08-2016, 09:17 PM   #6
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Blower motor bearings, which means you have to replace the motor assembly.
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Old 02-09-2016, 01:13 PM   #7
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Hello Bessie

The furnace has a direct-drive blower, that is, one without a belt. There is one motor with two blower wheels, one for combustion air and exhaust, the other to circulate heated air within the trailer. Eventually the bearings fail with the first warning sign being noise.

I believe your trailer is equipped with an Atwood furnace. I believe that replacement furnaces from Atwood are available that are the same size and have the same ductwork configuration and the gas connection in the same place. Given the age of your furnace, you may want to consider replacing the whole thing.

Replacement of the blower motor is straightforward unless the blower wheels are stuck on the shaft due to corrosion.
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Old 02-09-2016, 01:17 PM   #8
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I agree that your blower motor is likely failing. I also agree with Jammer's post above that suggests if your furnace is original (i.e., 1997) that you replace the entire unit rather than just the blower motor. At nearly 20 years old, it has lived a long and happy life.
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Old 02-09-2016, 01:44 PM   #9
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Quote:
Originally Posted by Jammer View Post

I believe your trailer is equipped with an Atwood furnace. .
My 93 has a Hydroflame.
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Old 02-09-2016, 01:45 PM   #10
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Quote:
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My 93 has a Hydroflame.
Same sauce, different name.
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Old 02-09-2016, 02:01 PM   #11
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Quote:
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Same sauce, different name.
Are Hydroflame and Atwood furnaces the same?
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Old 02-09-2016, 03:57 PM   #12
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Hydro Flame is, and has been for quite some years, an Atwood brand.

http://www.atwoodmobile.com/furnaces.asp

I believe they were a separate entity back in the 1960s and maybe the early 1970s.
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Old 02-09-2016, 05:33 PM   #13
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If after inspection, the combustion chamber is solid, and expense is an issue, and you decide to just replace the motor, here is a helpful video:

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Old 02-09-2016, 08:00 PM   #14
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Thanx all, showed the video and rest to hubby. Will crack the whip tomorrow and gitty him onto this project.
Beth
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