Activating The Service Diagnostic Modes - Whirlpool MVWC400XW Technical Education

FOR SERVICE TECHNICIANS ONLY
ACTIVATING THE SERVICE
DIAGNOSTIC MODES
1. Be sure the washer is in standby mode
(plugged in with all indicators off).
2. Perform the following sequence of
movement using the cycle selector knob.
NOTE: AFTER RESET , sequence "a" through
"e" must be completed within 6 seconds.

RESET - Rotate cycle selector knob
L
counterclockwise to clear sequence.

a. Rotate cycle selector knob clockwise
R
one click and wait ½ second.

b. Rotate cycle selector knob clockwise
R
one click and wait ½ second.

c. Rotate cycle selector knob clockwise
R
one click and wait ½ second.
d. Rotate cycle selector knob

counterclockwise one click and
L
wait ½ second.

e. Rotate cycle selector knob
R
clockwise one click.
Successful activation of this test mode

will be indicated by all status LED's
flashing ON and OFF in half-second
intervals.
Legend: = ON
0.5 Seconds ON
Sensing Soak Wash
0.5 Seconds OFF
Figure 1 - Successful Activation of Test Mode
If LED indicators do not display as

described above, the sequence may
not have been completed within
6 seconds. Repeat step 2 to ensure
this was not the cause. If still
unsuccessful, see Unsuccessful
Entry at right.
3. There are several Diagnostic Test Modes
you can access that are shown in the chart
below. To select the desired Mode of Operation,
turn the cycle selector knob until the display or
status LED's match the mode you wish to enter.
M O D
Fault Code Display Mode
Automatic Test Mode
Manual Test Mode
Calibration Mode
Sales Demo
UI Test Mode
SW Version Display Mode
4. Press the START button to enter desired
mode of operation.
Refer to the following pages for detailed
information on each mode of operation:
FAULT CODE DISPLAY MODE: Page

AUTOMATIC TEST MODE: Page

MANUAL TEST MODE: Page


CALIBRATION MODE: Page
n

SALES DEMO: Page
n

UI TEST MODE: Page
n

SW VERSION DISPLAY MODE: Page
n

Unsuccessful Entry
If entry into diagnostic test mode is unsuccessful,
refer to the following indication and action:
Indication : None of the LED's or display turn on.
Action: Press POWER button to enter setting
= OFF
mode.

Rinse Spin Done
too slow will affect entry.
If no indicators come on after pressing the

POWER button, go to TEST #1, page 12.
EXITING THE SERVICE
DIAGNOSTIC MODES
Press the POWER button at any time to exit
diagnostic test modes.
Washer will exit diagnostic test modes after 5
minutes of inactivity or unplugging the power cord.
5-2
DIAGNOSTIC TEST MODES
E STATUS LEDs
If indicators come on, repeat steps 1 through
4 of Activating the Service Diagnostic
Modes. NOTE: Rotating the dial too fast or
D S I P L A Y
On
0 1
On
02
On On
03
On
04
On On
05
On On
06
On On On
07
.