Diagnostic Guide; Activating Service Diagnostic Test Modes - Whirlpool CAE2793BQ Technical Sheet

DIAGNOSTIC GUIDE

Before servicing, check the following:
M ake sure there is power at the wall outlet.

H as a fuse blown or circuit breaker tripped? Was a regular

fuse used? A time-delay fuse is required.
A re both hot and cold water faucets open and water supply

hoses unobstructed?
A ll tests/checks should be made with a VOM (volt-ohm-

milliammeter) or DVM (digital-voltmeter) having a sensitivity
of 20,000 Ω per volt DC or greater.
R esistance checks must be made with washer unplugged

or power disconnected.
I MPORTANT: Avoid using large diameter probes when

checking harness connectors as the probes may damage
the connectors upon insertion.
C heck all harnesses and connections before replacing

components. Look for connectors not fully seated, broken
or loose wires and terminals, or wires not pressed into
connectors far enough to engage metal barbs.
A potential cause of a control not functioning is corrosion

or contamination on connections. Use an ohmmeter to check
for continuity across suspected connections.
DIAGNOSTIC LED – MAIN CONTROL
A troubleshooting tool has been implemented onto the main
control board—a diagnostic LED.
LED ON – The Control is detecting correct incoming line voltage
and the processor is functioning.
LED OFF – Control malfunction. Perform TEST #1: Main Control,
page 12, to verify main control functionality.
LED Location
Figure 1
SERVICE DIAGNOSTIC TEST MODES
These tests allow factory or service personnel to test and verify
all inputs to the main control board. You may want to do a quick
and overall checkup of the washer with these tests before going
to specific troubleshooting tests.
PAGE 2
FOR SERVICE TECHNICIAN'S USE ONLY
ACTIVATING THE SERVICE DIAGNOSTIC
TEST 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 - Place pointer at 12 o'clock position and wait
3–4 seconds to clear sequence.

a. Rotate cycle selector knob counterclockwise one click
L
and wait ½ second.

b. Rotate cycle selector knob clockwise one click and
R
wait ½ second.

c. Rotate cycle selector knob clockwise one click and
R
wait ½ second.

d. Rotate cycle selector knob counterclockwise one click
L
and wait ½ second.

e. Rotate cycle selector knob clockwise one click.
R
 Successful activation of Diagnostic Test Modes will be
indicated by all status LEDs (except for Lid Locked)
flashing ON and OFF in half-second intervals. NOTE:
LED names may vary between makes and models.
Legend: = ON
Sensing Soak/
Load Wash
Figure 2 - Status LEDs flashing ON and OFF
 If the status LEDs 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, page 3.
= OFF
0.5 Seconds ON
Final
Rinse Spin Done
0.5 Seconds OFF
DO NOT REMOVE OR DESTROY