Drying Time - Electrolux 6000 Service Manual

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The other side of the holding coil, booster coil and igniter
are connected to neutral through the second centrifugal
switch in the motor (closed when the motor is running).
When power is applied across these circuits, current
flows through the holding coil, but the holding coil does
not have enough magnetic force to open the solenoid by
itself. At the same time, current flows through sensor
contacts providing power to the booster coil and the
igniter. When current flows through both the holding and
booster coils, the first chamber opens. The contacts of
the sensor are in parallel with the secondary coil. As
long as the contacts of the sensor remain closed, current
flow bypasses the secondary coil, and gas is prevented
from flowing through the second chamber of the valve to
the burner.
Sensor
It is necessary to raise the temperature above 1100° F
to ignite gas. As current flows through the igniter, the
temperature of igniter raises from room temperature to
°
approximately 1800 F within 30 seconds. The contacts
of the sensor are heat sensitive and set to open above
the ignition temperature of gas. When the sensor
contacts open, current flows through the secondary coil,
opening the second chamber, allowing gas to the burner,
and is ignited by the heat of the igniter. When the
contacts of the sensor are open, the parallel circuit formed
by the igniter and the booster coil are in series with the
secondary coil which lowers the current flow through the
igniter and booster coil. Since it takes less magnetic
force to hold a solenoid open than it does to open it, the
L1
Igniter
first solenoid remains open when the current through the
booster coil is reduced. The reduction of current flow
through the igniter reduces heat from the igniter but the
sensor contacts are held open by the heat of the burner
flame.

Drying Time:

The amount of drying time is determined in one of two
ways: 1) A fixed amount of drying time may be set by
turning the SELECTOR knob to one of the fixed drying
times. 2) The AUTO DRY cycles a variable amount of
time by the size of the load, the amount of moisture in
the clothes and the dryness setting selected.
In the AUTO DRY cycles, the electronic control reads
the capacitance between the two sensor bars located in
the vent cover.
When wet clothes are placed in the dryer, the clothes
touch the sensor bars and the moisture lowers the
capacitance between the bars. As the dryer runs,
moisture is removed from the clothes and capacitance
between the bars increases. When the increase in
capacitance satisfies the electronic control, the cycle
status will change from "Auto Dry" to "Cool Down" and
the load is tumbled without heat. At the end of cycle,
the electronic control will turn the dryer off and the end of
cycle signal will sound.
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