Kenmore is the Sears brand name and is on a variety of appliances, including vacuums. Kenmore has a number of different kinds of vacuums from upright to canister in all different colors. They range in price from very inexpensive to mid-level cost. No matter which vacuum you chose, however, you are bound to run into some questions concerning how to make your unit work better. Try troubleshooting the issues on your own before calling a professional.
If you can't get your Kenmore vacuum to start, make sure the wall plug hasn't come loose. Ensure that a circuit breaker hasn't tripped or a fuse hasn't been blown. You may have some loose electrical hose connections. Your owner's manual (See References.) can tell you how to reconnect the hose ends. In addition, the Power-Mate's overload protector may have been tripped. If this is the case, clean the brush and its supports and then reset the unit.
A variety of reasons can account for why your Kenmore vacuum may be doing a poor job when picking up dirt. Check that your dust bag is not full or clogged. Perhaps all you need is a new bag. Check the airflow passages for clogs. You may need to adjust the settings on the pile height and the suction control. Holes in the hose can cause poor dirt pickup, as can worn-out Power-Mate brushes.
Performance Indicator Light
If your Performance Indicator Light turns red on your Kenmore vacuum, check if you need to change the dust bag. It's also a good idea to clean the Dirty Motor Safety filter. Make sure there are no blocked airflow passages. It is normal for the light to turn red when certain attachment tools are being used. The light will go off after you remove the tool.