You're in luck! I actually just finished up writing a repair solution for this exact problem! Just like I said in my previous answer, you may want to try pushing the reset button first, especially if the power nozzle will not make any noise when you turn it to the carpet setting. If you have the model that's pictured above, then the two screws to your model are actually on the bottom of the power nozzle, not on the top.
Here's what you'll need to replace a belt on a Kenmore
- Phillips Head Screw Driver
- Flat Head Screw Driver
Here's the link to the Fixya repair I just did for a similar Sears Kenmore canister. The only difference is that your reset button is going to be a very small red pole on the top of the power nozzle, and the screws you'll need to remove are on the bottom of the power nozzle, not the top like the blue one I took pictures of in the repair. Everything else will be identical. I hope this helps you!http://www.fixya.com/support/t4499227-need_replace_belt_in_kenmore_vacuum
If you don't hear the power nozzle motor come on when you change the
hose from Floors to Carpeting, this either means the reset switch needs
to be pushed, or that you have a bad hose that needs to be replaced.
If you would like help on how to diagnosis the electric hose to see if
it's bad, please just use the Clarification Request here on Fixya. If
you have any other questions, please feel free to ask me, I'm always
more then happy to answer follow up questions. If this repair was
helpful to you, please be sure to rate it as helpful by clicking the
thumbs up icons at the top of the repair.
Thank you very much,