Where are locking keys on old electrolux canister vacuum #2100?

SOURCE: Electrolux Advantage Series canister vacuum

There is an area on the back of the tank where you will see lines, put your thumb there and pull the top half of the tank towards yourself. That should open the machine so you can replace your after filter.

SOURCE: electrolux 2100 canister vacuum

Open the door to remove the bag. Pull the side bumpers forward when the door is open. The profile of the edge of the top and the bottom of the vacum body is a "L" shape. The cross section of the bumper is a "I" and that holds the body together. Carefully lift up the top just a little to free the plastic end cap that conceals the cord spool. There are two plastic pins on the top and bottom that hold this piece on and they frequently get broken. (If that happens repair shops drill and hole and insert a screw.)
There is a plastic protector plate that lifts up on either end and then is slid about 1/8th inch clockwise and then up.
Copy the wiring pattern on the four male connectors on the motor and the wire spool.
Post your wiring diagram and it will solve a lot of people's problem trying to reassemble this machine's -- including mine.

SOURCE: electrolux canister vacuum

The easiest solution would be to call your local Aerus/ Electrolux representative, because the corporation doesnt publish diagrams.

SOURCE: electrolux canister vaccum 2100

The filter for your Electrolux 2100 is located on the rear top of the machine. It is covered by a plastic grill. You simply place your finger in the rear of the plastic grill, push the tab in slightly and lift the grill up to expose the filter. The filter is approximately 4" by 6". It is NOT washable. Most Vac Shops sell replacement filters in addition to them being available at the local Electrolux distributor.

SOURCE: I have an older Electrolux canister vacuum - model

Check to be certain the thermo lite is on and not the bag full indicator. The thermo detector is very reliable, but the bag fill valve often fails. If it is the thermo, check your hose and wand for blockage by dropping a coin through them,before opening the vac itself.Otherwise you may have a bad set of motor bearings causing the motor to overheat due to its age.
The 2100 and all its canister cousins made since 1982 seem to be prone to failure of the dial valve on top cracking internally. The causes the bag full indicator to come on and the vac to shut down.
To open the vac you will need to slide the locking keys and bumpers forward with the bag door open. Do this with a set of pliers. Once done the vac will open from front to back like a **** shell. Be careful to look at the underside hinge are of the bag door before separating and mark and locate the wiring harness . This vac only goes back together one way, perfectly assembled it pops together with ease. If any piece is out of line it`s like a RUBIKS Cube. Take your time . OEM parts are only available through an AERUS Elctrolux dealer or repair shop