Whirlpool WTW4820XQ0 Troubleshooting Guide download pdf (Page 3)

PAGE 3

FOR SERVICE TECHNICIAN’S USE ONLY

DO NOT REMOVE OR DESTROY

FAULT CODE DISPLAY MODE (Pgs 6–7)

To access fault/error codes, perform steps 1

and 2 of Activating the Service Diagnostic Test

Modes. Turn the cycle selector knob until the

status LEDs correspond as follows:

“Done” LED On

Press the START button to enter Fault Code

Display Mode. The status LEDs ﬂash on and off.

1. To view last 4 fault codes:

 Turn cycle selector knob clockwise to view

fault codes in the order of most recent to

oldest. (Refer to Fault/Error Code charts

on pages 6 & 7.)

NOTE: A fault/error code will be removed

from memory if it does not reoccur after

10 consecutive wash cycles.

2. To clear fault codes:

 Turn cycle selector knob until the status LEDs

ﬂash ON and OFF (see ﬁgure 2, page 2).

 Press and hold the START button

for 3 seconds to clear all fault codes

and exit Fault Code Display Mode.

Fault/Error Code Display Method

Fault/error codes are displayed by alternating the

state of the Status LEDs in one second intervals.

All fault/error codes have an F# and an E#. The

F# indicates the suspect System/Category and

the E# indicates the suspect Component system.

If the Fill or Sensing LED is ON, the Fault

Number is represented; if OFF, the Error Number

is represented (see example below). The

remaining LEDs (Wash, Rinse, Spin, and Done)

represent the fault and error code in binary. (See

Fault/Error Code Charts on pages 6 & 7 for more

information.) = ON.

LED names may vary between makes and models.

3. There are several accessible Diagnostic

Test Modes shown in the chart below. To

select the desired Mode of Operation, turn

the cycle selector knob until the status LEDs

match the mode desired to enter.

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 3

AUTOMATIC TEST MODE: Page 4

MANUAL TEST MODE: Page 4

CALIBRATION MODE: Page 4

SALES DEMO MODE: NOT FOR SERVICE USE*

UI TEST MODE: Page 4

SW VERSION DISPLAY MODE: Page 5

FACTORY DIAGNOSTICS: If accessed, washer

must be recalibrated (see Calibration Mode)

TACHOMETER VERIFICATION MODE: Page 5

*Press and hold the START key for 3 seconds to exit.

Unsuccessful Entry

If entry into diagnostic test mode is unsuccessful,

refer to the following indication and action:

Indication: None of the LEDs turn on.

Action: Press START button to enter setting mode.

 If indicators come on, repeat steps 1

through 4 of Activating the Service

Diagnostic Modes. NOTE: Rotating the

dial too fast or too slow will affect entry.

 If no indicators come on after pressing the

START button, go to TEST #1, page 12.

EXITING THE SERVICE

DIAGNOSTIC TEST MODES

Press and hold the START button for 3 seconds

at any time to exit diagnostic test modes.

Washer will exit diagnostic test modes after 5

minutes of inactivity or unplugging the power cord.

EDOM

WASH

RINSE

SPIN

DONE

Fault Code Display Mode

Automatic Test Mode

Manual Test Mode

Calibration Mode

Sales Demo Mode

UI Test Mode

STATUS LEDs

DIAGNOSTIC TEST MODES

SW Version Display Mode

Factory Diagnostics Mode

Tachometer Verification Mode

(Status LED names may vary

between makes and models)

Fill Wash Rinse Spin Done

1F 8421F2

0.5

3E 8421E3

0.5

Repeat…

STATUS LEDs

Frame Number

FILL

SENSING

WASH

RINSE

SPIN

DONE

Fault / Error Code

Frame Timing (sec.)

1 2 3 4 5 6 7 8 ... 47 48

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Whirlpool WTW4820XQ0 Troubleshooting Guide Page 3

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