W11417645 Revb

FOR SERVICE TECHNICIAN'S USE ONLY

Voltage Measurement Safety Information

When performing live voltage measurements, you must do the following:

•  Verify the controls are in the off position so that the appliance does not start when energized.
•  Allow enough space to perform the voltage measurements without obstructions.
•  Keep other people a safe distance away from the appliance to prevent potential injury.
•  Always use the proper testing equipment.
•  After voltage measurements, always disconnect power before servicing.

IMPORTANT: Electrostatic Discharge (ESD) Sensitive Electronics

ESD problems are present everywhere. Most people begin to feel an ESD discharge at approximately 3000 V. It takes as little as 10 V to destroy, damage, or weaken the main control assembly. The new main control assembly may appear to work well after repair is finished, but a malfunction may occur at a later date due to ESD stress.

•  Use an anti-static wrist strap. Connect wrist strap to green ground connection point or unpainted metal in the appliance.

-OR-

Touch your finger repeatedly to a green ground connection point or unpainted metal in the appliance.

•  Before removing the part from its package, touch the anti-static bag to a green ground connection point or unpainted metal in the appliance.
•  Avoid touching electronic parts or terminal contacts; handle electronic control assembly by edges only.
•  When repackaging main control assembly in anti-static bag, observe above instructions.

IMPORTANT SAFETY NOTICE - 'For Technicians only'

This service data sheet is intended for use by persons having electrical, electronic, and mechanical experience and knowledge at a level generally considered acceptable in the appliance repair trade. Any attempt to repair a major appliance may result in personal injury and property damage. The manufacturer or seller cannot be responsible, nor assume any liability for injury or damage of any kind arising from the use of this data sheet.

Contents

Whirlpool Control Panel ........................................ 2

Diagnostic Guide .................................................. 3

Service Diagnostic Mode ...................................... 3

Human-Machine Interface Test ............................. 4

Software Version Display...................................... 4

Quick Diagnostics Test ......................................... 5

Fault/Error Codes .............................................. 7-9

Troubleshooting Guide ................................... 10-11

Test Procedures ................................................. 12

Manually Unlocking the Door .............................. 24

Component Removal .......................................... 25

FOR SERVICE TECHNICIAN'S USE ONLY

ABBREVIATIONS

ACU: Appliance Control Unit IF: Interference Filter HMI: Human-Machine Interface (PCB & housing)

DIAGNOSTIC GUIDE

Before servicing, check the following:

•  Make sure there is power at the wall outlet.
•  Has a household fuse blown, or circuit breaker or GFCI tripped? Was a regular fuse used? Inform customer that a time-delay fuse is required.
•  Are both hot and cold water faucets open and water supply hoses unobstructed?
•  Make sure drain hose is not sealed into drain pipe, and that there is an air gap for ventilation.
•  All 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.
•  Resistance checks must be made with washer unplugged or power disconnected.
•  IMPORTANT: Avoid using large diameter probes when checking harness connectors as the probes may damage the connectors upon insertion.
•  Check all harnesses and connections before replacing components. Look for connectors not fully seated, broken or loose wires and terminals, pin insertion, 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.
•  IMPORTANT: Voltage checks must be made with all connectors attached to the boards.

FOR SERVICE TECHNICIAN'S USE ONLY

•  To properly check voltage:
• 1 . Unplug appliance or disconnect power.
• 2 . Attach voltage measurement probes to proper connectors.

3. Plug in appliance or reconnect power and verify voltage reading.
4. Unplug appliance or disconnect power after completing voltage measurements.

SERVICE DIAGNOSTIC MODE

These tests allow service personnel to test and verify all inputs to the machine control electronics. You may want to do a quick and overall checkup of the washer with these tests before going to specific troubleshooting tests.

ACTIVATING SERVICE DIAGNOSTIC MODE

1. Be sure the washer is in standby mode (plugged in with all indicators off).
2. After initial power is applied, wait 30 seconds before activating Service Diagnostic mode.
3. Select any three (3) buttons (except POWER) and follow the steps below, using the same buttons. Remember the buttons and the order that the buttons were pressed.

Within 8 seconds,

•  Press and Release the 1st selected button,
•  Press and Release the 2nd selected button,
•  Press and Release the 3rd selected button;
•  Repeat this 3 button sequence 2 more times.

4. If the Service Diagnostic mode has been entered successfully, all indicators on the console are illuminated for 5 seconds with ' 888 ' or ' 88 ' showing in the Estimated Time Remaining seven-segment display. If there are no saved fault codes, all indicators on the console will momentarily turn off and then only the seven-segment display will come back on and display ' 888 ' or ' 88 '.

NOTE: The Service Diagnostic mode will time out after 10 minutes of user inactivity, or shut down if AC power is removed.

**Table Caption: This table outlines the functionality of three service diagnostic buttons, detailing how momentary