12-08-2008, 11:46 AM
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Deity
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Join Date: Jul 2004
Location: Saint Regis Falls, NY, USA.
Posts: 4,978
Thanks: 0
Thanked 102 Times in 102 Posts
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the smell shouldn't be coming from the heat exchanger because it is a closed receptacle. what does come to mind is a slipping belt if your fan is remotely located from the motor. the fan is mounted in rubber bearing retainers on the "spider" - these may have shrunk and are spinning inside the spider. once the fan heats up the bushings will have expanded and not slip.
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