Fixed Setting; Meats; Cakes; Breads - Electrolux Next Gen 30" Service Manual

the control turns the fan and the assist element on. The
delay is needed for the oven flame to have proper venting
stack action. After five minutes, and if the oven door is
closed, the convection relay on the electronic oven
control closes providing line to neutral voltage to the
convection fan motor and the convection assist element.
This relay remains closed until the program is canceled
or is interrupted by the opening of the oven door. If
interrupted by the opening of the oven door, the relay will
automatically close when the door is closed.
FIXED SETTINGS

Meats

When the meats pad is touched the oven operates with
the convection fan and assist element at the set
temperature.

Cakes

When the cakes pad is touched the oven operates at a
lower than set temperature with less temperature
differential.

Breads

When the breads pad is touched the oven operates at a
higher than set temperature with more temperature
differential.

BROIL

When the Broil pad is touched, and a temperature is set
between 400 and 550 degrees F (usually 550 degrees),
the broil relay on the board closes, applying line to
neutral voltage to the oven broil circuit and "Broil" will
appear in the display. 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 broil section of the 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 in the tip of
the oven sensor is a positive 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. The broil burner will cycle when the set
temperature is reached.

CLEAN

When the Clean pad is touched and a clean time is set
(and 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 rotate 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 circuit. The
clean temperature is preset into the control at around
860 degrees. It take about 45 minutes for the oven to
reach 860 degrees. When the temperature is reached
the control cycles the bake circuit off and on to maintain
the temperature until the clean time is completed. When
the clean time is completed, the control removes power
from the bake circuit and the oven cools down. When the
temperature in the oven goes below 500 degrees the
control closes the contacts of the lock relay. The lock
motor turns 180 degrees closing and reopening the
contacts of the lock switch and unlocking the door. The
open contacts of the lock switch tell the control that the
door is unlocked and to open the contacts of the lock
relay.

CALIBRATION

To check oven calibration:

1. Place a thermometer or thermocouple in the center
of the oven.
2. Program the oven temperature for 350°F. Allow the
oven to cycle three times.
3. Average the highest and lowest reading. The average
should be within 10 degrees of 350°F.
To adjust the oven temperature higher:
1. Press the Bake pad for 6 seconds. "0" will appear
in the display.
2. To increase the temperature use the number pads to
enter the desired change. The temperature may be
increased up to 35°F.
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