On 4 Oct 2006 13:31:15 -0700, wrote:

I have a Baumatic BT79 cooker extractor hood that is vented to the
outside. It has 3 speeds and has worked flawlessly for 3 years. The
other night I switched it onto the highest speed and got no extraction
just a low hum, the other 2 speeds work just fine. What could be wrong?

Freefall

I'm not sure, but I think it's broken.