How do you take apart electrolux canister vacuum #2100?

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

SOURCE: Electrolux model 2100 shuts off with slightest suction blockage

This is exactly the symptom you would expect from a defective bag control valve. The actual control valve sits under the dial on top of the vac and often cracks internally. It can be replaced in about 15 minutes by a good tech with genuine parts from AERUS Elctrolux dealer or repair center.
You can open the vac front to rear like a **** shell by sliding the bumpers out the front with the bag door open, however you must be careful not to disturb the wiring harness and to mark wiring locations. The body must be carefully realigned for closure. If it is not perfect you will not be able to slide the bumpers back in.

SOURCE: Electrolux Model 2100 vacuum won't work

hi from uk may i suggest you remove cover and the new dust collection bag then if you look in the bag compartment there is a gauze filter fitted usually grey in colour ? at opposite end of compartment where bag connects this gauze filter is the outlet from bag compartment that the air exhales when vac is operating ie as vac **** up dust into bag the bag has microscopic holes that allow sucked up air and dust to collect but keeps dust from passing into bag chamber but allows air to escape thro holes and so enter bag chamber then escapes via the gauze filter to outside of vac hope you follow this ?? now if this filter is blocked/never been cleaned/changed ? then the symptoms of indicator bag full light will come on you can remove and wash filter if it is gauze typ? dry and refit then try vacuuming ? or replace filter they are not expensive usually in pack of 3 in uk DO NOT RUN VAC WITHOUT THIS FILTER FITTED ! or you will have some dust in the room ? hope this helps?