Whirlpool APARTMENT MAINTENANCE SERIES, Service Manual

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42
CYCLE FUNCTIONS
First Step
With the Cycle Selector Knob in the OFF position, turn the Water Level and Wash/Rinse Water Tem-
perature knobs to the desired settings.
Fill Cycle
NOTE: See FILL Strip Circuit on page 67.
Turn the Cycle Selector Knob to the desired wash cycle. The washer will begin to fill. When the water
has reached the predetermined level the water level switch will break power to the water fill valves and
the fill valves will turn off. The water pressure switch circuit remains active during the wash cycle to
maintain the proper water level in the tub. A high water level fill will be approximately 17 gal. (64.6 L).
Wash (Agitate) Cycle
NOTE: See AGITATE Strip Circuit on page 67.
Wash agitation is acheived by reversing the direction of the drive motor. The electronic control board
will initiate a four part control cycle to the drive motor. Step 1 will apply power to the drive motor in one
direction for a predetermined length of time (as determined by the washing action chosen by the cycle
selector switch). In step 2 the power is turned off for a period of time. Step 3 again powers the drive
motor, but in the opposite direction, for a period of time. Step 4 again turns the power to the motor off.
This cycle is repeated for the duration of the WASH/RINSE cycle. The tables below show the duration
of the agitate cycle for Normal and Gentle Wash.
The HANDWASH cycle adds one more time variable. Normal agitation will occur for 5 seconds
followed by 10 seconds of no agitation. This will continue until the WASH/RINSE cycle is completed.
Direction of Rotation Cycle Duration
Clockwise (CC)
Counterclockwise (CCW)
Power ON for .25 sec.
Power OFF for .20 sec.
Power ON for .25 sec.
Power OFF for .20 sec.
Normal Agitation
Direction of Rotation Cycle Duration
Clockwise (CC)
Counterclockwise (CCW)
Power ON for .16 sec.
Power OFF for .38 sec.
Power ON for .16 sec.
Power OFF for .38 sec.
Gentle Agitation
During NORMAL agitation the agitator rotates approximately
270° in each direction at a frequency
of 67 strokes-per-minute.
During GENTLE agitation the agitator rotates approximately
180° in each direction at a frequency
of 48 strokes-per-minute.
Table 4 Table 5
Drain Cycle
NOTE: See DRAIN Strip Circuit on page 68.
The electronic control board will apply power to the drain pump during the drain cycle. The pump will
remove the water from the tub into an appropriate drain. At the time that the drain pump is activated
the control board also energizes the brake solenoid, releasing the basket to spin.