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Posted on Nov 26, 2009
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Bosch oven loud fan noise - Bosch HBL 445 Stainless Steel Electric Single Oven

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  • Posted on Dec 19, 2009
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JUST REPLACED BOTH FAN MOTORS ON A DOUBLE BOSCH 755. DIDNT HELP MUCH.THE FAN IS LOUD COMPARED TO OTHER BRANDS.UNLESS YOU NOTICE A DRASTIC CHANGE IN NOISE, DONT WASTE YOUR MONEY ON A NEW FAN MOTOR.ITS JUST THE WAY IT WAS MADE.

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  • Bosch Master 3,463 Answers
  • Posted on Nov 27, 2009
Barry Coates
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Make sure the fan blade is not loose,to tighten it, turn the nut clockwise, yes I mean clockwise!!!!.
Try spraying behind the fan blade with WD40.
If this does not cure prob, then the only course of action, is to replace the fan motor.
Hope this helps.

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