TESTING
Whirlpool 2014 CABRIO
®
Direct Drive Washer
n
6-5
For Service Technician Use Only
DANGER
Electrical Shock Hazard
Only authorized technicians should perform
diagnostic voltage measurements.
After performing voltage measurements,
disconnect power before servicing.
Failure to follow these instructions can result in
death or electrical shock.
Component Testing
TESTING WASHER COMPONENTS FROM THE
CONTROL
Before testing any of the components, perform the following
checks:
• The most common cause for mis-diagnosed control
failure is poor connections. Therefore, disconnecting,
inspecting and reconnecting wires will be necessary
throughout test procedures.
• All tests/checks should be made with a VOM or DVM
having a sensitivity of 20,000 ohms-per-volt DC, or
greater.
• Check all connections before replacing components,
looking for broken or loose wires, failed terminals, or
wires not pressed into connectors far enough.
• Voltage checks must be made with all connectors
attached to the boards.
• Resistance checks must be made with power cord
unplugged or power disconnected, and with wiring
harness or connectors disconnected from the control.
The testing procedures in this section may require the use
of needle probes to measure voltage. Failure to use needle
probes will damage the connectors.
TEST #1: Main Control
This test checks for incoming and outgoing power to and from
main control. This test assumes that proper voltage is present
at the outlet.
1. Unplug washer or disconnect power.
2. Remove console to access main control.
3. Verify that ALL connectors are inserted all the way into the
main control.
4. With a voltmeter set to AC, connect black probe to J12-3
(Neutral) and red probe to J12-1 (L1). Plug in washer or
reconnect power.
¾
If 120VAC is present, go to step 6.
¾
If 120VAC is not present, check the AC power cord for
continuity (Wiring Diagram, page 6-4.)
5. Is the “Diagnostic LED” flashing or continuously ‘ON’ or
‘OFF’? (See Figure 1 on page 6-6 for LED location.)
¾
Flashing: (+5VDC present and micro operating) proceed
to Key Activation & Encoder Test, page 5-4.
¾
ON: (+5VDC present but micro failure) continue to step
9.
¾
OFF: (+5VDC missing or micro failure) proceed to step
7.
6. Check if console UI is affecting the main control DC supply.
a. Unplug washer or disconnect power.
b. Remove connector J18 from main control.
c. Plug in washer or reconnect power.
d. Recheck the Diagnostic LED per step 6.
¾
If the diagnostic LED is now flashing, go to Test #4: Keys
and Encoders, “None of the indicators light up”, step 4,
page 6-11. If diagnostic LED is not flashing, continue to
step 8.
7. Perform voltage checks inside header J18 on the board –
do not short pins together. Unplug washer or disconnect
power.
a. With a voltmeter set to DC, connect black probe to J18-
3 (Circuit Gnd) and red probe to J18-1 (+5VDC). Plug in
washer or reconnect power.
¾
If DC voltage is not present, go to step 9.
¾
If the DC voltage is present, but the diagnostic LED is
not flashing, continue to step 9.
8. Main Control has malfunctioned.
a. Unplug washer or disconnect power.
b. Replace the main control.
c. Reassemble all parts and panels.
d. Plug in washer or reconnect power. Perform Service
Diagnostics to verify repair.
Continue to next page for Main Control Board diagram
and Main Control Board connectors & pinouts
