I have an electrolux canister 5000 lux - power nozzle not working

manual > http://www.totalvac.com/manuals/electrolux_manual_Lux5000.pdf

Why do you need to get to the cord assembly?
If the cord will not retract, tilt the vacuum to about a 45 degree angle and gently tug and release cord. It will usually retract.
Due to problems ensuing from untrained persons attempting to reassemble the vacuum and having to take it to the shop anyway, I recommend not taking it apart.
If the above isn't the problem, please take it to the nearest Aerus Electrolux store for repair.

http://www.aerushome.com/storelocator/

How's the hose?
If it's only one wand, yes, you'll need to buy a new one. It depends on where it burnt out. If it was at a connection to the hose, the other wand, or the power nozzle, you need to check the connections thoroughly for discoloration, breaks/cracks, and potentially shorts in the hose, wand, and power nozzle.
The entire vacuum should be taken to the nearest Aerus Electrolux dealer for troubleshooting for what caused the sparking in the first place.

http://www.aerushome.com/storelocator/

Electrolux C type of bag. These usually come packages of 12. Available at any electrolux dealer or vac shop.

The handle is replaceable. Any Aerus Electrolux franchise with a service shop should have them available.

CHECK TUBE-SUMO ACTIVE ( PART NO: 1131402-02 ) CONNECTION AND NOZZLE-SUMO ACTIVE OR REPLACED (PART NO: 1131400-02)

try to go with a smaller size bag

Here is the manufactures website to download the manual for your machine.

http://www.aerusonline.com/service/manuals.cfm

There should be some screws that you remove from the bottom. Then pry up from the back and the top should come off.

Hi,

You have a blockage in the hose,
Use broom handle or cane to remove it.

http://dysonmanuals.llc.nu/

Chris..