The Self-Cleaning Cycle - Electrolux E36DF76EPS Service Manual

The air is then exhausted down a channel mounted to
the rear of the oven to the floor underneath the range.

The self-cleaning cycle.

When the oven is set to the self-cleaning cycle the elec-
tronic oven control board checks the rack removal
switch. If the contacts of the switch are closed between
common and normally open, telling the control board
that the racks have been removed, the control board
starts a self-cleaning cycle. To start the self-cleaning
cycle the control board supplies line to neutral voltage
to the motor of the door lock mechanism. The door
lock mechanism is made up of a motor, a latch and two
switches, the phase switch and the lock switch. The
lock switch is controlled by the latch and the phase
switch is controlled by a cam on the motor shaft. As the
motor shaft turns, the latch is forced to the right locking
the oven door and closing the contacts of the lock switch.
As the latch move to the right it hits the side of the slot
in the door stopping the latch movement. If the latch
does not hit the door, the lock switches will not close.
This is how the latch mechanism proves that the doors
closed and locked, before going into self-clean.
When the rotation of the motor shaft reaches one half
turn the cam closes the contacts of the phase switch.
Closing the contacts of the phase switch tells the con-
trol board to remove power from the motor. Closing the
contacts of the lock switch tells the control board that
the door is locked and to go on with the clean cycle.
With the oven door locked, electronic oven control pro-
vides line to line voltage to the bake element until the
temperature in the oven reaches 850°F. The electronic
control then cycles the bake element to maintain this
temperature, for the rest of the three-hour cycle. At the
end of three hours, the electronic control removes power
from the bake element and the oven starts to cool down.
When the temperature in the oven drops below 490°,
the electronic oven control board, applies power to the
lock motor to unlock the door.
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