Clean Function - Whirlpool ESTATE TES325E W Service Manual

Refer to the illustrations on the next page.
When the unit is plugged in and line voltage is
applied to the electronic oven control, the
following keyboard actions are used to set the
oven CLEAN function:
• The CLEAN function is selected.
• The desired cleaning time is selected
(if other than 3:30 hrs.).
When the preceding events occur, the BAKE
relay energizes, and its contacts close. This
provides an electrical circuit through the BAKE
element and the thermal fuse to the neutral
side of the line.
The BROIL relay also closes to provide a heat
circuit. To control the heat build-up at the
beginning of the CLEAN cycle, the BAKE relay
closes for 60% of the preheat time, and the
BROIL relay closes for 40% of the time until
the oven temperature reaches 550˚F. To pro-
vide the increased self-clean temperatures
after the preheat time has concluded, the re-
lay will cycle as follows:
Bake = 60%
Broil = 70%
THE CLEAN FUNCTION
2-6
Temperatures inside the oven will reach 875˚F
to 900˚F during the CLEAN cycle. If the tem-
perature at the back of the oven reaches 363˚F,
the thermal fuse will open, and the CLEAN
cycle will be terminated.
Because the oven reaches extremely hot tem-
peratures, the oven door is latched during the
CLEAN cycle, and remains latched until the
oven has cooled to a safe temperature.
The door latching operation occurs when the
LATCH SOLENOID relay closes, and electri-
cal current flows through the LATCH SOLE-
NOID.
After the CLEAN cycle has been completed,
the door latch will release when the oven
temperature drops below 400˚F.