Repairs - bread toaster

Our current bread toaster, a West Bend Model 78824, has now 6 years (given or taken) and half of it stopped to work.

One of the two levers is not engaging anymore.
So ... let's repair it !! 

Toasters, even with the electronics, are quite simple and cheap appliances.

And unless to heavily over-engineering them, they are subject to the worse possible conditions ... bread crumbs !
It is INCREDIBLE the amount of bead crumbs that one can accumulate in a toaster in few years !

Furthermore, bread is an organic compound with curious mechanical/electric characteristics.

The Problem

The problem is that one lever is not engaging.
You push it down and is not staying down when you remove the pressure on the lever.

However forcing it down, the heating element is engaged and LEDs are turning on.

Typical case of something (bread, duh :) ) that disrupt the current flow somewhere.

Now, the lever is usually kept down by an electromagnet powered by the electronic.
When the lever is down, there is on a PCB a copper contact driven by piece connected to the lever.
The contact then bring power to the electronic and the heating element and thus an electromagnet is powered with the purpose to keep the lever down until the electronic decide to release it (because a pushbutton is pressed or because the set time expired).

The solution

Cleaning.

Deep cleaning of the toaster is the first thing to try.
It is of course possible the electronic is damaged but before to diagnose that, is mandatory to restore the toaster as much as possible to a clean condition, i.e. no bread crumbles around.

So no choices, it must be opened.

NEVER EVER EVEN THINK to work on the toaster plugged in !

So disconnect it, bring it outside and start to shake it to remove crumbles.
This first phase can bring out already LOT of stuff.

Then, start to open it.
First thing to do to, with a plier remove the lever handlers.
Lot of screws on the bottom (triangular head ones), unscrew all of them and remove the screws. 
Note that the cover has the electronic attached to it.
A cable is connecting the electronic to the circuit who control the power.

Disconnect the cable so that the entire cover can be removed.

After the cover is removed ... clean like crazy.  Better to have some compressed air in order to remove every possible crumbs stuck.

Gently remove crumbles from the lever piece that make contact with the PCB, usually there is a lot of silicon grease, try to don't remove too much grease, otherwise it will have to be replaced.

(in the pictures note the amount of crumbles attached to lever that make contact, mixed with the silicon grease)

At this point is good to run some tests. I did check with a multimeter that  when the lever is down there is connection for the power (of course the toaster still UNPLUGGED !!).
Then I put back the cover, reconnected the cables and run some tests.

YEAH !!
Fixed.  It was probably some bread crumble messing up with the connection, so no power to the electromagnet.
So this time was easy.

Just closed everything and the glorious 6 years old toaster is back in service !