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Thanks Russ. i opened the blower compartment and found chunks of styrofoam inside the blower. I imagine that is not normal. trying to remove the condensate trap off to see if there is additional foam inside the blower.
There is definitely a dragging noise when it starts, but i haven't tested the capacitor yet. Is it possible that the styrofoam inside the blower could be causing it to overheat and shut down? The furnace is only 6 years old.