Time Bake; Speed Bake; Broil; Clean - Electrolux Next Gen 30" Service Manual

closes, applying line to neutral voltage across the oven
bake circuit. The preheat and oven indicator lights on the
control will illuminate. The bake circuit is a series circuit
made up of the electronic oven control, a silicon carbide
igniter that reduces in resistance as it heats up, and a
current sensitive oven safety valve that needs a minimum
of 3.2 amps of current to open. When electrical power is
first applied to the circuit the resistance of the igniter is
high enough that the current flow in the circuit is below
the amount needed to open the safety valve. As
electrical current flows through the igniter it causes the
silicon carbide material to heat reducing the resistance
of the igniter and increasing the current flow in the circuit.
When the temperature of the igniter reaches around
1800 degrees F the current flow in the circuit exceeds 3.2
amps. The oven safety valve opens allowing gas to flow
into the bake burner. The gas is then ignited by the heat
of the bake igniter and the oven begins to heat up. In the
tip of the oven sensor is a positive coefficient thermistor
that increases in resistance as the oven temperature
increases. The microprocessor reads the resistance of
the oven sensor, and compares it with a programmed
temperature set into the control. When the resistance of
the oven sensor indicates the temperature in the oven is
about 10 degrees above the programmed temperature
the microprocessor opens the relay, which removes
power from the bake circuit and closes the safety valve.
When power is removed from the bake circuit the oven
temperature begins to lower. As the oven temperature
lowers, the resistance of the oven sensor decreases.
When the oven drops to about 10 degrees below the
programmed temperature the resistance of the sensor
tells the microprocessor to close the relay contacts, and
provide power to the bake circuit. After the first cycle the
preheat indicator light on the control goes out indicating
the oven is preheated.
Note: Oven controls may have a spread of more
or less than 20 degrees. The important
thing is the average temperature in the
oven. The average temperature in the
center of the oven should be within 10
degrees of the programmed temperature.

TIME BAKE

The time bake function allows the oven to be programmed
to stop baking at a set time, or to delay the start and
stop baking at a set time. The stop time cannot be set
for more than 11 hours and 59 minutes ahead of the
time of day.

SPEED BAKE

Speed bake operates the same as the bake cycle.
However, when the speed bake switch is turned on the
electronic oven control waits for 6 minutes before closing
the contacts of the speed bake relay on the board. When
the contacts do close it provides line to neutral (120 AC)
to the speed bake fan in the oven. The fan will now
operate continuously until Clear Off is touched. Also,
if the oven door is opened during a speed bake operation
the fan stops and then restarts when the door is closed.

BROIL

When the broil pad is touched, and high or low is set
with the up or down arrows, the broil relay on the board
closes, applying line to neutral voltage across the broil
circuit and oven indicator lights on the control will
illuminate. The broil circuit is a series circuit made up of
the electronic oven control, a silicon carbide igniter that
reduces in resistance as it heats up, and a current
sensitive oven safety valve that needs a minimum of 3.2
amps of current to open. When electrical power is first
applied to the circuit the resistance of the igniter is high
enough that the current flow in the circuit is below the
amount needed to open the safety valve. As electrical
current flows through the igniter it causes the silicon
carbide material to heat reducing the resistance of the
igniter and increasing the current flow in the circuit.
When the temperature of the igniter reaches around
1800 degrees F the current flow in the circuit exceeds 3.2
amps. The oven safety valve opens allowing gas to flow
into the broil burner. The gas is then ignited by the heat
of the broil igniter and the oven begins to heat up. In the
tip of the oven sensor is a positive coefficient thermistor
that increases in resistance as the oven temperature
increases. The microprocessor reads the resistance of
the oven sensor, and compares it with a programmed
temperature set into the control for HI or LO and will cycle
the burner when the temperature is reached.

CLEAN

When the clean pad is touched and a clean time is set
(if the oven door is closed closing the contacts COM to
NO of the door switch), the door lock relay on the
electronic oven control closes providing line to neutral
voltage (120 VAC) to the lock motor. The lock motor
starts to rotates closing the contacts of the door lock
switch. When the motor rotates one half turn, the
contacts of the door lock switch reopen sending a
signal to the control telling it that the door is locked, and
to open the contacts of the lock relay. The control then
closes the bake relay providing power to the bake burner.
The clean temperature is preset into the control at
around 860 degrees. It takes about 45 minutes for the
oven to reach 860 degrees. When the temperature is
reached the control cycles the bake burner off and on to
maintain the temperature until the clean time is completed.
When the clean time is completed the control remove
power from the bake circuitand the oven cools down.
When the temperature in the oven goes below 500
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