El7020a beater brush wont run... no headlights. vacuum OKAY

It's the beater bar brush. Turn it over and use a screwdriver or knife, and run it the full width of the beater bar to remove the hair and string and other debris that get wound up on the beater bar-NOTE you do NOT have to remove the beater bar or take apart anything. As long as the beater bar spins, and there are no missing sections on the beater bar- this will work. Beater bar could also be worn down- be sure that the bristles extend past the bottom of the vacuum- ALWAYS DO THIS WITH THE POWER OFF

The silver cover is a pressed in panel... (so called "three minute job".. hazardous, quite DEADLY voltages will be UNCOVERED.. use EXTREME caution)
and requires pretty good pressure to get it off... enough where a careless move can damage the cover.
Carefully:
Look at the back of the panel: there are two 1.25 inch (approx) wide slots.
(just imaging a battery flap on a cheap remote controller)
If you can gently introduce a blunt end putty knife into the slot and firmly push it straight forward (toward the hose end (there is a plastic friction tab at each outside end))... with a lifting action you will see the panel start to lift ... you will be able to see the tabs
if you look closely.
Insert your thumbnail on the much stronger corner and pry upward (this requires a lot of force and the corners are the strongest area... breaking the cover is very possible)
Once the silver cover is off you will see the two T20 Torx screws.
Removing them will only loosen the back end... which you should -exercise some caution here... that LED bracket is loose and all the weight is on the wires of the LEDs.
Now set the Vac on in the upright position (nozzle to the ceiling).
Complete release of the top is done by opening the bag compartment and pushing a through the red rectangles in the upper hinge wall. These are latched tabs and will easily lift once the tab is pushed in enough (try not to gough or mar... rememeber it is only plastic).
Both the bag cover and the back cover will lift.
Leave the bag cover and gently negotiate the back cover from inside the handle.
You can now see the big board SUMO (suction motor control board )...
If the glass fuse is not blown... and there are no obvious soot marks...
Take it to the VAC Repair for a free estimate.. They'll tell you it is the hose!!
(which is indeed the biggest failure point of these machines).
Hose slip rings can be inspected <dust & lint>and cleaned (PLUS ruined... Highly likely if you don't get the contacts back in their respective slots) by one screw on the wand end... or three screws on the control/handle end (inside tool carrier recess).

take the cleaner apart and make sure that the wires are all hooked to the on and off switch that got to the beater bar that is the main part of the problem improper wireing

Hey Tony! The brush does continue to rotate when using the vacuum on the bare floor setting.

Is the power nozzle motor itself not working? If it's not, the problem could be the wiring, the switch, the vacuum power switch, the connectors from hose to machine, or the circuit board in the machine.
My best guess would be the connector from hose to vacuum. The vacuum connector are cheaply made and held in place by flimsy plastic.
If the pn motor is running, it's most likely a broken belt. Initially a worn or loose belt would cause intermittent operation of the brush. Replace it and the brush should work.
Depending on the part, your machine may still be covered by warranty. Check your manual or internet for warranty information.
If under warranty, take it to the store your purchased it from for repair or replacement.

Sounds like the beater brush is frozen and the drive belt is burning up.
Check your directions on changing the drive belt for the beater brush. When you remove the beater brush, clean as best you can. At each end of the beater brush you will find a plastic clip. These clips hold the beater brush in the vacuum. Add some WD40 between the brush and the clips. Turn the clips by hand and be sure they turn freely. Reassemble and at the same time, put on a new drive belt.
If this solution is of help to you, please take the time to add a Thumbs Up to my profile for the assistance. Thank you. Paul

Greetings,

Thank you so much for that clarification, I know the exact model of Kenmore that you have now. This model is actually made by Panasonic for Sears who puts the Kenmore name on it. I wasn't able to located the Sears owners manual, but I did find a Panasonic model that uses the same power nozzle as yours does. I will also explain how to access the roller brush below, and if you'd like to see diagrams of how to do it, you may visit the link below to the Panasonic owners manual. Start at page 46, then go back to page 40.
http://service.us.panasonic.com/OPERMANPDF/MCCG973-MUL.pdf

In order to access the roller brush on this model, here's what you need to do. Underneath of the headlight cover, there are two screws that need to removed first. In order to get to these screws, simply push on both sides of the headlight cover, and lift it straight up while pushing both sides. After the headlight cover has been removed, you'll be able to visibly see the two screws that need to be unscrewed (phillips head screw driver). Remove these two screws next.

After the screws have been removed, turn the power head upside. If you look at both the left and the right sides, you'll see a little indentation on each side. All you need to do is put a flat head screwdriver in these indentations, and pry up on both sides. This will remove the top housing. Once you have top housing removed, you'll see there's one more cover that goes over the roller brush. There are two tabs on both sides behind the roller brush. If you squeeze these two tabs, you can now remove the white colored housing that covers the brush, and have full access to the brush.

I hope that this helps you remove the twine from your beater bar. If you found this repair helpful, please be sure to rate it by clicking the thumbs up icons in the top right hand corner. If you have any other questions about how to repair this, please feel free to request a clarification, or add a comment to the repair, and I'll be more then happy to help you.

Thanks very much,

Chris Jones
GoVacuum

If the DC14 has a brush protected aspect i.e. a switch on the front that puts the drive belt off, the drive belt would have to be replaced by a professional repairer as this can't be done at home.
If the model doesn't have the brush control at the front, flip the Dyson over so that the beater bar is in the air and locate three/four screws that can be taken out with a coin or blunt knife. A turn is all that is required on those notches and the sole plate should come off once these notches have been undone. Then check the belt - if it has broken lift out the beater bar in the middle with your hand and replace the sections necessary. Be careful to check that the end caps are pushed in properly otherwise the beater bar will not sit correctly.

If it is the top cover, the monitoring panel just pops off from the backside. You can use a thin knife or screwdriver and push on the locking clips, it then just hinges off of the front clips. After that is off you can see the two screws and after the top cover hinges off the actual door to the vac bags is attached to that cover it too hinges off.

Hope this helps

Turn the vac. over, remove the bottom plate covering the brush roll, then on the bottom of the top cover, on each side there should be 2 slots when you can put a flat blade scredriver, pry up to release the tabs holding the cover on. The know will come off also when you do this, just put it back on when the put the cover back on. Put the belt on the brush roll and feed it thru the opening and stretch to put over the motor shaft. The top cover, push down to lock it.