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View Full Version : Changed Blower Motor - New one hums


mdugan
Feb 6, 2007, 08:18 PM
Changed blowe motor on by furnace today. After putting it back together the new is louder than the old. Never did it before. Does the squirrel cage need balancing, similar to a celing fan?

letmetellu
Feb 6, 2007, 10:02 PM
If it is a multi-speed motor make sure that you got your wires connected to the right terminals.

NorthernHeat
Feb 7, 2007, 07:48 AM
Is the blower wheel very dirty?

mdugan
Feb 7, 2007, 08:03 AM
Squirrel cage was very dirty. Tried cleaning with a paint brush. Got a majority of it but not all.

NorthernHeat
Feb 7, 2007, 04:03 PM
I asked because a dirty wheel will cause it to be off balance, you may need detergent and water to clean the wheel, not the motor, I know I shouldn't have to say that but you just don't know :-)

mdugan
Feb 8, 2007, 08:13 AM
Thanks, I'll try this weekend.