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Old 01-02-2013, 10:28 AM   #1
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JBrockey's Avatar
Join Date: Aug 2012
Location: Flower Mound, TX
Posts: 134
Need ideas on Furnace issue

I have my coach in storage. The other day I was working on the interior and decided to turn on the furnace for warmth. I first turned on the propane and then set the thermostat. When the furnace kicked on, there was a very loud rattle sound. My first thought was that the pilot light needs to be lit. I then realized that it has an Electronic ignition. Someone suggested that Mud Daubers may have nested, but I have not opened it up to check. Any ideas what it could be?

Jim, Becky and our Four Legged Friend "Jackson"
2006 DSDP/2007 Chevy Tahoe
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Old 01-02-2013, 11:40 AM   #2
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Could be mud daubers or other critters in the air flow path, getting sucked through the fan blades. It doesn't have to be anything large to make a rattle - a hard shelled beetle will do it. Could also be the fan itself, which is typically a squirrel cage type with plastic fins that have been known to disintegrate after a few years (this I know from experience!). The sound of plastic shards flying around inside is startling, to say the least.
Gary Brinck
2004 American Tradition; 2014 Buick LaCRosse
Homebase in the Ocala Nat'l Forest near Ocala, FL
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