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3 amp fuse blown - why

Unit has short - 3 amp fuse blown that is connected to the filter circuit board. Client stated the blower motor was running slow before unit quit.
How to determine what part is bad?

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It will have to be whatever part is in that circuit, if it's the blower you need to ohm it out and check the bearings and capacitor. if there is a wiring diagram it will help you determine what is in that circuit.

Posted on Mar 17, 2009

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