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© 1998 Maytag Corporation
16008373-01 SECTION 1. GENERAL INFORMATION
1-11
MISCELLANEOUS
Door Latch Switch Monitoring
At the end of a cycle, when the timer advances
into the Idle increment, the machine control
will keep the line relay energized until it loses
power when the door latch switch opens. This
guards against the switch contacts welding
closed. In this condition, the machine con-
trol will limit what additional cycles can be run
before the door is opened as follows:
Washers between Series 10 and 16
The machine control will allow the washer
to restart only if the user sets the timer
into a Rinse Tumble or Spin3 increment.
Washers from Series 17 and Later
The machine control will allow the washer
to restart in any setting. After that cycle
completes, the user must open the door
before the machine control will allow a
third cycle to start.
Door Lock/Spin Control
When the machine control begins a spin in-
crement, it will not command spin speed
above 51 rpm unless the door lock switch in-
put is energized. At the start of a spin incre-
ment, the machine control will drop the speed
to 0 rpm then tumble until the switch is ener-
gized. At that point, it will restart the spin se-
quence. If the door lock switch is not ener-
gized after 2 minutes of tumbling, the machine
control will energize the timer motor output
until the timer inputs change so the washer
can proceed with the cycle.
At the end of spin sequence, if the door lock
switch input is de-energized before the washer
drops below 91 rpm, a hardware circuit on the
machine control will interrupt the torque out-
put signal, which forces the motor control to
0 rpm, and energize the door lock wax motor
circuit to lock the door. This hardware circuit
will keep the door lock wax motor circuit en-
ergized until the door lock switch input signal
is energized.
Redistribution
The machine control commands a distribu-
tion profile speed ramp from 0 rpm to 85 rpm
at the beginning of each high speed (above
100 rpm) spin. When the washer reaches 85
rpm, the machine control monitors the Tach
Input to determine if the speed varies through
one revolution of the spinner basket. If it
senses a high enough variation in speed (sug-
gesting an out-of-balance condition in the
clothing load), it will drop the spinner speed
to 0 rpm and force a short reverse tumble to
redistribute the clothing load before resum-
ing the spin. If any of the out-of-balance
switches trip and open the out-of-balance in-
put circuit at a speed below 500 rpm, the ma-
chine control will also drop the speed to 0 rpm
and force the reverse tumble to redistribute
the clothing load.
In a Prewash Tumble increment, the machine
control will de-energize the line relay if the
washer continues to tumble for 15 minutes.
This would only occur if the timer were to stall
(See Section 1: Timer Motor Output and Sec-
tion 2: Timer Input Chart).