On Mon, 06 Jan 2014 06:35:44 -0500, micky
wrote:

On Wed, 1 Jan 2014 08:33:25 -0800 (PST), Bob_Villa
wrote:

The inducer motor assembly vibrates/rattles when it shuts-down. The unit is 18 yrs old...The inducer motor runs smoothly and continues to spin a long while after power is off.
Is this a concern...possibly a metal clip (for balancing) fell-off?
http://i1181.photobucket.com/albums/...ps60adef7e.jpg

Thanks! (Stormy need not apply!)

Ivve been looking at my owners manual for my 30 year old Carrier oil;
furnace -- is yours oil or gas-- Always say. -- and I forgot that it
has a troubleshooting section. You should find the manual for yours (I
have the paper copy but found this online. )

I don't think I have an inducer motor. Certainly not one that looks
like your picture. I can't tell how big it is.


Spinning when it's off sounds good to me. If this is just a fan, no
it doesn't matter if it vibrates when the power is turned off. It
matters if it doesn't spin at the proper speed when the power is on.
That's what matters.

I've never seen a fan with metal balancing clips, and that includes the
2 squirrel-cage blades on my furnace . Did you actually find a clip?
That seems to go on the fan?
I've seen lots of clip-ballanced squirrel cage blowers. Dumb idea as
far as I'm concerned but not uncommon