Manual Overview Test - Washer - Maytag MLE22PD Service Manual

perform a Control Action as described in the table below. Once
the action is completed, the washer will move to the next step.
Each step can be differentiated from the others by looking at the
n
display indication. Steps can be advanced if the test requires it.
To move to the next step before a control action is complete,
n
press any key pad except the DELICATES washer key pad.
To exit the Quick Overview Test at any time, press the

Manual OvervieW TeST - WaSHer

n
DELICATES washer key pad.
DISPLAY
Step INDICATION
(See page 6-7) to access and initiate this 1 DELICATES
procedure.
2 PREWASH
Before replacing any system components,
Note: Prewash flashes are performed.
perform this Manual Overview Test.
on the display and is
very easy to miss.
3 CCU
n This cycle consists of 8 steps. In each step,
EEPROM Version
(EC xx)
the washer will perform a Control Action
NORMAL
as described in the table below. Once the
4 CCU
action is completed, the washer will move to
Software Version
the next step. Check Exit Condition column.
(SC xx)
POWER WASH
5 MCU
n Each step can be differentiated from the
Software Version
others by looking at the display indication.
(S n xx)
DELICATES
n To move to the next step before a control
6 MCU
Hardware Version
action is complete, press any keypad
(H n xx)
NORMAL
except the DELICATES washer keypad.
7 UIC
EEPROM Version
n To exit the Manual Overview Test at any
(EU xx)
time, press DELICATES washer keypad. POWER WASH
8 UIC
Software Version
(SU xx)
DELICATES
9 NORMAL
The drain pump may be running in any of the last three steps,
depending on the water level in the washer and reading of the
pressure sensor.
** In the event of an MCU-CCU communications error, the UI
display will go blank for up to 5 minutes and then display an
F28 error message.
** The washer will drain until pressure sensor reaches lowest level
for 10 seconds, then moves to next step.
Control Actuators
Action to be Checked
Door locks, drum Door lock system
n
turns 1/2 revolution, Child safety routine
n
then door unlocks Motor control (MCU)*
n
and relocks.
Accelerometer tests Accelerometer
n
Fill by both cold water Cold water inlet valves
n
inlet valves (4 liters) #2 and #3
n
into BLEACH Pressure sensor:
n
compartment. Suds Level
n
Fill by hot water inlet Hot water inlet
n
valve to Wash Level valve #1
n
into MAIN WASH Pressure sensor:
n
compartment. Wash Level
n
Drum executes
tumbling at Motor
n
wash speed Motor control (MCU)*
n
(30 sec).
Drain pump is ON. Drain pump
n
Pressure sensor**
n
Drum rotates Motor
n
counter-clockwise Motor control (MCU)*
n
and ramps up. Drain pump on
n
Performs unbalance
procedure before and
after spinning. If not
interrupted, the drum
will slow and stop;
after reaching 0 rpm,
the door unlocks and
Step 9 will be skipped.
This Step is only Door unlock
n
apparent if Step 8 is
MANUALLY ADVANCED
prior to the drum
reaching 0 rpm
(washer pumps out
if needed). Door
unlocks (washer
returns to flashing
mode).
Manual Overview Test.
This cycle consists of 8 steps. In each step, the washer will
n
perform a Control Action as described in the table below. Once
the action is completed, the washer will move to the next step.
Check Exit Condition column.
Each step can be differentiated from the others by looking at the
n
display indication.
To move to the next step before a control action is complete,
n
press any key pad except the DELICATES washer key pad.
To exit the Manual Overview Test at any time, press the
n
DELICATES washer key pad.
Exit
Step DISPLAY Condition
1 DELICATES On
completion
only
2 PREWASH On
completion
only
3 NORMAL On
key press
or if overfill
level is
detected
4 POWER On key
WASH press or
completion
5 DELICATES On key
press or
completion
6 NORMAL On
completion
only
7 POWER On key
WASH press or
completion
8 DELICATES On key press Stop motor to 0 rpm.
only after
rpm = 0 and
door is
unlocked
The drain pump may be running in any of the last three steps,
depending on the water level in the washer and reading of the
The drain pump may be running in any of the
pressure sensor.
last three steps, depending on the water level
** In the event of an MCU-CCU communications error, the UI
in the washer and reading of the pressure
display will go blank for up to 5 minutes and then display an
F28 error message.
sensor.
* In the event of an MCU-CCU
communications error, the UI display will go
blank for up to 5 minutes and then display an
F28 error message.
PAGE 12
6-10
Control To be
Action Checked
Door locks, drum Door lock system
n
turns 1/2 revolution, Child safety routine
n
then door unlocks
and relocks.
Accelerometer tests Accelerometer
n
are performed.
Filling with both Both Cold Inlet
n
cold inlet valves. Valves #2 and #3
n
Overfill level
n
Drum executes Motor
n
reversing movement Motor Control (MCU)*
n
at wash speed
(10 min.).
Drain pump is on Drain Pump
n
(4 min.).
Drain pump is on Drain Pump
n
(reach Suds Level
plus 10 sec.).
Drum rotates counter- Motor
n
clockwise and ramps Motor Control (MCU)*
n
up to maximum speed.
Motor
n
Door unlocks. Motor Control (MCU)*
n
Door lock system
n