FOR SERVICE TECHNICIAN ONLY - DO NOT REMOVE OR DESTROY
BASIC OPERATION OF COMMERCIAL STACKED
WASHER/DRYER
n
For additional information, see
www.WhirlpoolCommercialLaundry.com
IMPORTANT
Electrostatic Discharge (ESD)
Sensitive Electronics
ESD problems are present everywhere. ESD may damage
or weaken the electronic control assembly. The new control
assembly may appear to work well after repair is finished,
but failure may occur at a later date due to ESD stress.
n
Use an anti-static wrist strap. Connect wrist strap to green
ground connection point or unpainted metal in the appliance.
-ORTouch your finger repeatedly to a green ground connection point
or unpainted metal in the appliance.
n
Before removing the part from its package, touch the anti-
static bag to a green ground connection point or unpainted
metal in the appliance.
n
Avoid touching electronic parts or terminal contacts; handle
electronic control assembly by edges only.
n
When repackaging failed electronic control assembly in anti-
static bag, observe above instructions.
GENERAL USER INFORMATION
Scrolling ‘out of order’ message, followed by a failure
or diagnostic code, showing in display
This condition indicates the washer/dryer is inoperative. Diagnostic
codes being displayed on the upper portion of the display pertain
to the dryer section, and diagnostic codes displayed on the lower
portion of the display apply to the washer section. Diagnostic codes
displayed on both the upper and lower portions of the display
pertain to the control system of both the washer and dryer.
Cold Start (initial use):
‘0 Minutes’ showing in display
This condition indicates the cycle is complete and the washer/dryer
cannot be operated. Coins dropped or debit inputs during this
condition will be stored in escrow but cannot be used until normal
operation is restored by opening and closing the door. If a door
switch has failed, causing ‘0 MINUTES’ to remain in the display
after the door is opened and closed, it must be replaced before
normal operation can be restored.
Warm Start (after power failure):
A few seconds after power is restored, if a cycle was in progress
at the time of the power failure, ‘RESELECT CYCLE’ will flash
in the display, indicating the need for a key press to restart
the washer or dryer.
Washer is programmed at the factory as follows:
n
11 minute wash period
n
3 rinses (extra rinse not enabled)
n
$2.00 wash price
Dryer is programmed at the factory as follows:
n
5 minutes per quarter
n
$1.50 dry price
Washer Door Lock
Prior to beginning a cycle, there is a door lock routine of lock/
unlock/relock, then cycle begins. The door will remain locked
until the end of a cycle or approximately 2 minutes after a
power interruption.
Pricing
After the door is opened and then closed following the completion
of a cycle, the display indicates the cycle price (unless set for free
operation, where the display will flash ‘SELECT CYCLE’). As coins
are dropped or debit inputs arrive, the display will change to lead
the user through the initiation of a cycle.
There are four (4) types of dryer pricing:
Fixed ‘Vend’ Pricing
A dryer set up for ‘Fixed Cycle’ operation can only accept
additional time accumulated by increments equal to the length
of a complete dry cycle. A maximum of 99 minutes may be
purchased; no additional credit is given for coins dropped
with 99 minutes in the display.
Accumulator Pricing
If the price is set to one coin 1, then accumulator pricing is in effect.
Cycle time can be purchased one coin at a time up to the maximum
time of 99 minutes.
Fixed Cycle With Top Off Pricing
A dryer set to offer ‘Top Off’ capability will allow time to be added
to an existing dry cycle in increments equal to the number of
minutes of dry time per quarter (coin 1), up to 99 minutes, regardless
of the cost required to start the dryer. No credit is given for coins
or debit inputs entered when the control is displaying 99 minutes.
With Card Payment System: In Enhanced Debit Mode, the top off
price can be set independently (see VALUE OF COIN 2), and the top
off time is calculated according to the following equation:
full cycle price
top off time =
top off price
x full cycle length
Penny increment offset is not applied to top off purchases.
Free Cycles
This is established by setting the cycle price to zero. When this
happens, ‘SELECT CYCLE’ will appear rather than a cycle price.
Any cycle started as a free cycle will automatically terminate
when the door is opened.
PART NO. W10920938A PAGE 1
FOR SERVICE TECHNICIAN ONLY - DO NOT REMOVE OR DESTROY
Debit Card Ready
This washer/dryer is debit card ready. It will accept a variety of
debit card systems, but does NOT come with a debit card reader.
Refer to the debit card reader manufacturer for proper washer/dryer
set-up. In models converted to a Generation 1 debit card system,
debit pulses represent the equivalent of one coin (coin 1).
CONTROL SET-UP PROCEDURES
IMPORTANT: Read all instructions before operating.
n
Coin Payment Models: Insert service switch key and turn
counter-clockwise.
n
With Card Payment System: Once a Generation 2 debit card
reader is installed (according to the reader manufacturer’s
instructions), the set-up modes can be changed by inserting a
set-up card (supplied by the reader manufacturer) into the card
slot. Inserting the service switch key and turning will only access
the service mode.
The washer/dryer is now in the set-up mode. The bottom
temperature setting buttons and the lower portion of the display are
used to set up the digital control for the washer. The upper three
fabric setting buttons and the upper portion of the display are used
to set up the controls for the dryer.
The display can contain four numbers and/or letters and a decimal
point on both the top and bottom display portions. These are used
to indicate the set-up codes and related code values available for
use in programming the washer/dryer.
Start Operating Set-Up
Washer/dryers are preset at the factory and do not require any
programming. However, if you want to change the settings, follow
the ‘Set-Up Codes’ guide.
The first code shown in each segment is the factory default setting.
The set-up code is indicated by the one or two left-hand characters.
The set-up code value is indicated by the two or three right-hand
characters.
Dryer control
setting buttons
Dryer display
Washer display
SET-UP CODES
Washer control
setting buttons
Display
CODE EXPLANATION
6 06REGULAR CYCLE PRICE (DRYER)
6 06
Represents the number of quarters (coin 1) needed to start the dryer;
6 quarters = $1.50.
Press the lower middle (WARM) button once to advance to next code.
g
6 08REGULAR CYCLE PRICE (WASHER)
6 08
middle left (COTTON/WHITES) button, decrease by
(HOT) button. Factory default of 8 quarters = $2.00.
Press the lower middle (WARM) button once to advance to next code.
g
7 05REGULAR DRY TIME (DRYER)
7 05 Represents the number of minutes per quarter (coin 1).
Factory default of 5 minutes per coin. Example: 6 quarters
x 5 minutes = 30 minutes. By pressing the upper left (COTTON/
WHITES) button, value adjusts from 1–99 minutes.
Press the lower middle (WARM) button once to advance to next code.
g
may adjust from 0–200 (See VALUE OF COIN 1). Advance from 0–200 by
pressing the upper left (COTTON/WHITES) button. Factory default of
Represents the number of quarters (coin 1) needed to start the washer;
may adjust from 0–200 (See VALUE OF COIN 1). Increase by pressing the
pressing the lower left
PAGE 2
FOR SERVICE TECHNICIAN ONLY - DO NOT REMOVE OR DESTROY
CODE EXPLANATION CODE EXPLANATION
7 11WASH LENGTH (WASHER)
7 11 This is the number of minutes for WASH. Washer comes from
the factory preset with 11 minutes; may adjust from 9–17 minutes.
Increase by pressing the middle left (COTTON/WHITES) button,
decrease by pressing the lower left (HOT) button.
Press the lower middle (WARM) button once to advance to next code.
g
8 00TYPE OF DRYER PRICING (DRYER)
8 00 Fixed Cycle with Top Off. For detailed description, see General
Dryer User Information.
8 FC With Card Payment System: Fixed Cycle. For detailed
description, see General Dryer User Information.
Use the upper right (COLORS/DELICATES) button to change
this selection.
Press the lower middle (WARM) button once to advance to next code.
g
8 00ADDITIONAL RINSE OPTION (WASHER)
This option is either NOT SELECTED ‘00’ or SELECTED ‘Ar.’
8 00
8 ArPress the lower right (COLD) button to change this selection.
Press the lower middle (WARM) button once to advance to next code.
g
9 00CYCLE COUNTER OPTION
This option is either NOT SELECTED ‘00’ or SELECTED ‘0C.’
9 00 Not Selected ‘00.’
9 0C Selected ‘0C’ and not able to be deselected.
Press the lower right (COLD) button three consecutive times
to select ‘0C.’ Once selected ‘0C’ it cannot be deselected.
Press the lower middle (WARM) button once to advance to next code.
g
1.00MONEY COUNTER OPTION
This option is either NOT SELECTED ‘00’ or SELECTED ‘0C.’
1.00 Not Selected ‘00.’
1.0C Selected ‘0C.’
Press the lower right (COLD) button three consecutive times
to select ‘0C’ and three consecutive times to deselect (Not Selected
‘00’). Counter resets by going from ‘OFF’ to ‘ON.’
1.C0 Selected ‘C0’ and not able to be deselected.
To select ‘C0’ and not able to be deselected, first select ‘0C,’
then within two seconds press the lower right (COLD) button
twice, the lower left (HOT) button once, and exit the set-up mode.
Press the lower middle (WARM) button once to advance to next code.
g
2.00SPECIAL PRICING OPTION
This option is either NOT SELECTED ‘00’ or SELECTED ‘SP.’
2.00 Not Selected ‘00,’ and next available code will be A.00.
2.SP Selected ‘SP.’ Press the lower right (COLD) button once
to change this selection.
If SPECIAL PRICING OPTION is selected, there is access to codes ‘3.XX’
through ‘9.XX.’
Press the lower middle (WARM) button once to advance to next code.
g
Not Selected ‘00.’
Selected ‘Ar.’
OPTIONS TO USE IF SPECIAL PRICING IS SELECTED:
3.06SPECIAL CYCLE PRICE (DRYER)
3.06 Represents the number of quarters (coin 1) to start the dryer;
may adjust from 0–200 (See VALUE OF COIN 1). Advance
from 0–200 by pressing the upper left (COTTON/WHITES) button.
Factory default of 6 quarters = $1.50.
Press the lower middle (WARM) button once to advance to next code.
g
3.08SPECIAL CYCLE PRICE (WASHER)
3.08 Represents the number of quarters (coin 1) to start the washer;
may adjust from 0–200 (See VALUE OF COIN 1). Increase by
pressing the middle left (COTTON/WHITES) button, decrease
by pressing the lower left (HOT) button. Factory default of
8 quarters = $2.00.
Press the lower middle (WARM) button once to advance to next code.
g
4.05SPECIAL DRY TIME (DRYER)
4.05 Represents the number of minutes per quarter (coin 1).
Factory default of 5 minutes per coin. Example: 6 quarters
x 5 minutes = 30 minutes. By pressing the upper left
(COTTON/WHITES) button, the value can be adjusted
from 1–99 minutes.
Press the lower middle (WARM) button once to advance to next code.
g
5.00TIME-OF-DAY CLOCK, MINUTES
5.00 This is the TIME-OF-DAY CLOCK, minute setting; select 0–59
minutes by pressing the lower left (HOT) button.
Press the lower middle (WARM) button once to advance to next code.
g
6.00TIME-OF-DAY CLOCK, HOURS
NOTE: Uses military time or 24 hr. clock.
6.00 This is the TIME-OF-DAY CLOCK, hour setting; select 0–23 hours
by pressing the lower left (HOT) button.
Press the lower middle (WARM) button once to advance to next code.
g
7.00SPECIAL PRICE START HOUR
NOTE: Uses military time or 24 hr. clock.
7.00 This is the START HOUR; 0–23 hours. Select START HOUR
by pressing the lower left (HOT) button.
Press the lower middle (WARM) button once to advance to next code.
g
8.00SPECIAL PRICE STOP HOUR
NOTE: Uses military time or 24 hr. clock.
8.00 This is the STOP HOUR; 0–23 hours. Select STOP HOUR
by pressing the lower left (HOT) button.
Press the lower middle (WARM) button once to advance to next code.
g
PAGE 3
FOR SERVICE TECHNICIAN ONLY - DO NOT REMOVE OR DESTROY
CODE EXPLANATION
OPTIONS TO USE IF SPECIAL PRICING IS SELECTED (cont.):
9.10SPECIAL PRICE DAY
9.10 This represents the day of the week and whether special pricing
is selected for that day. A number followed by ‘0’ indicates no
selection that particular day (9.10). A number followed by an ‘S’
indicates selected for that day (9.1S). To change the value of ‘0’
and ‘S,’ use the lower right (COLD) button.
Days of the week (1–7) are selected by pressing the lower left
(HOT) button.
When exiting set-up code ‘9.’, the display must show current day
of week:
DISPLAY DAY OF WEEK CODE (selected)
10 Day 1 = Sunday 1S
20 Day 2 = Monday 2S
30 Day 3 = Tuesday 3S
40 Day 4 = Wednesday 4S
50 Day 5 = Thursday 5S
60 Day 6 = Friday 6S
70 Day 7 = Saturday 7S
Press the lower middle (WARM) button once to advance to next code.
g
A.00 VAULT VIEWING OPTION
This option is either NOT SELECTED ‘00’ or SELECTED ‘SC.’
A.00 Not Selected ‘00.’
A.SC Selected ‘SC.’ Press the lower right (COLD) button once
for this selection. When selected, the money and/or cycle counts
will be viewable (if counter option[s] is selected) when the coin
box is removed.
Press the lower middle (WARM) button once to advance to next code.
g
b.05VALUE OF COIN 1
b.05 This represents the value of coin 1 in number of nickels:
05 = $0.25.
Increase between 1 and 200 nickels by pressing the middle left
(COTTON/WHITES) button, decrease by pressing the lower left
(HOT) button.
Press the lower middle (WARM) button once to advance to next code.
g
C.20VALUE OF COIN 2/VALUE OF DRYER TOP OFF
C.20 This represents the value of coin 2 in number of nickels:
20 = $1.00.
Increase between 1 and 200 nickels by pressing the middle left
(COTTON/WHITES) button, decrease by pressing the lower left
(HOT) button.
Press the lower middle (WARM) button once to advance to next code.
g
E.00ADD COINS OPTION
This option is either NOT SELECTED ‘00’ or SELECTED ‘AC.’ This
option causes the customer display to show the number of coins
(coin 1) to enter, rather than the dollars-and-cents amount.
E.00 Not Selected ‘00.’
E.AC Selected ‘AC.’ Press the lower right (COLD) button
three consecutive times to change this selection.
Press the lower middle (WARM) button once to advance to next code.
g
CODE EXPLANATION
F.00ENHANCED PRICING OPTION
F.00 Not Selected ‘00.’
F.CP Cycle-Based pricing enabled. This option allows configuration
of different prices for cold, warm, and hot water wash cycles.
F.SU Super Cycle pricing enabled. This option allows customers
to upgrade cycles by depositing extra money. Set-up codes
‘H.’ and ‘h.’ will be displayed only when this option is enabled.
Press the lower right (COLD) button for this selection.
Press the lower middle (WARM) button once to advance to next code.
g
H.01SUPER CYCLE UPGRADE PRICE
(Skipped unless Super Cycle pricing is enabled.)
H.01 This represents the number of coin 1 required to upgrade a
base cycle to a super cycle. Advance from 0–33 by pressing
the lower left (HOT) button.
Press the lower middle (WARM) button once to advance to next code.
g
h.01SUPER CYCLE TYPE
(Skipped unless Super Cycle pricing is enabled.)
h.01 This represents the Super Cycle upgrade option. Press the
lower left (HOT) button to step through upgrade options 1
through 3 as follows:
01 – enhanced wash, extra 3 minutes of wash tumble
02 – extra rinse for all cycles.
03 – both 01 and 02.
Press the lower middle (WARM) button once to advance to next code.
g
J.CdPAYMENT MODE (COIN/DEBIT OPTION)
J.Cd Both coin and debit selected. Press the lower right (COLD) button
three consecutive times to change this selection.
_
J.C
Coins selected, debit disabled. Press the lower right (COLD) button
three consecutive times to change this selection.
J._d With Card Payment System: Debit Card selected, coins
disabled. Press the lower right (COLD) button three consecutive
times to change this selection.
J.Ed Enhanced Debit is self-selected when a Generation 2 card reader
is installed in the washer/dryer. The Ed option cannot be manually
selected or deselected.
Press the lower middle (WARM) button once to advance to next code.
g
L.00PRICE SUPPRESSION OPTION
This option causes the customer display to show ‘ADD’ or
‘AVAILABLE’ rather than the amount of money to add (used
mainly in debit installations).
L.00 Not Selected ‘00.’
L.PS Selected ‘PS.’ Press the lower right (COLD) button once
to change this selection.
Press the lower middle (WARM) button once to advance to next code.
g
n.CECLEAR ESCROW OPTION
When selected, money held in escrow for 30 minutes without
further escrow or cycle activity will be cleared.
n.00 Not Selected ‘00.’
n.CE Selected ‘CE.’ Press the lower right (COLD) button once
to change this selection.
Press the lower middle (WARM) button once to advance to next code.
g
in addition to the programmed wash time.
PAGE 4
FOR SERVICE TECHNICIAN ONLY - DO NOT REMOVE OR DESTROY
CODE EXPLANATION
U.00PENNY INCREMENT OFFSET (DRYER)
U.00 This represents the penny increment price offset used in
Generation 2 (Enhanced Debit) models. Choose from 0–4
pennies by pressing the upper left (COTTON/WHITES) button.
Press the lower middle (WARM) button once to advance to next code.
g
U.00PENNY INCREMENT OFFSET (WASHER)
U.00 This represents the penny increment price offset used in
Generation 2 (Enhanced Debit) models. Choose from 0–4
pennies by pressing the lower left (HOT) button.
Press the lower middle (WARM) button once to advance to next code.
g
A1.00 PREWASH LENGTH (WASHER)
A1.00 This is the number of minutes of PREWASH. Choose 00 to disable
the prewash or select between 2 and 7 minutes by pressing the
lower left (HOT) button.
Press the lower middle (WARM) button once to advance to next code.
g
If cycle counter (9 0C) is selected, the following is true:
1 00 Cycles in HUNDREDS. 1 02 = 200
2 00 Cycles in ONES. 2 25 = 225
TOTAL CYCLES = 225
This is “VIEW ONLY” and cannot be cleared.
Press the lower middle (WARM) button once
to advance to next code.
If money counter (1.0C or 1.C0) is selected, the following is true:
3 00 Dollars in HUNDREDS. 3 01 = $100.00
4 00 Dollars in ONES. 4 68 = $168.00
5 00 Number of CENTS. 5 75 = $100.75
TOTAL = $168.75
END OF SET-UP PROCEDURES
EXIT FROM SET-UP MODE
n
Turn service switch key clockwise and remove
or remove manual set-up card.
DIAGNOSTIC GUIDE
Before servicing, check the following:
n
Make sure there is power at the wall outlet.
n
Verify that both hot and cold water faucets are open and water
supply hoses are unobstructed.
n
Check all connections before replacing components. Look for
broken or loose wires, failed terminals, or wires not pressed
into or onto connections far enough.
n
A potential cause of a control not functioning is corrosion on
connections. Observe connections and check for continuity
with an ohmmeter.
n
Connectors: Look at top of connector. Check for broken or loose
wires. Check for wires not pressed into connector far enough
to engage metal barbs.
n
Resistance checks must be made with power cord unplugged
from outlet, and with component connectors disconnected.
DIAGNOSTIC MODE
To enter the ‘Diagnostic Mode,’ first enter ‘Start Operating Set-Up.’
Then press and hold the lower right (COLD) button for 1 second
while in set-up code six, anytime a diagnostic code is present, or while
dAS displays if operating with a Generation 2 card reader.
On entry to diagnostic mode, the entire display will flash, a cycle
in process is canceled, money in escrow is cleared, and diagnostic
codes are cleared. If a diagnostic code persists on the portion of
the washer/dryer not being tested, it can be acknowledged with the
lower middle (WARM) button prior to starting a diagnostic cycle.
This would be used when, for example, the dryer is out of service
and a diagnostic cycle is to be run on the washer.
There are six possible ways to initiate cycle activity from diagnostic
mode as follows:
1. Washer Cleanout Cycle – With the entire display flashing,
this cycle is started by pressing the center right (COLORS/
DELICATES) button.
Use the Washer Cleanout Cycle once a month to keep the inside
of your washer fresh and clean. This cycle uses a higher water
level. Use with liquid chlorine bleach to thoroughly clean the
inside of your washer. This cycle should not be interrupted.
IMPORTANT: Do not place garments or other items in the
washer during the Washer Cleanout Cycle. Use this cycle
with an empty wash drum.
2. Washer Cycle Credit – With the entire display flashing, a cycle
may be credited by pressing the lower left (HOT) button (CC will
display). When the service mode is exited, ‘SELECT CYCLE’ will
be displayed unless the end-of-cycle door opening is required.
3. Washer Manual Overview Test Cycle – With the entire display
flashing, this cycle is started by pressing the center left (COTTON/
WHITES) button. This cycle provides more typical full length fills,
tumbles, and drains, and allows for a more thorough analysis of
the washer operation, including pressure sensor behavior.
4. Washer Quick Spin Cycle – With the entire display flashing, this
cycle is started by pressing the center middle (PERM PRESS)
button. This cycle provides a method to quickly drain and spin
(remove water from the washer), if desired.
5. Washer Quick Overview Test Cycle – With the entire display
flashing, this cycle is started by pressing the lower middle
(WARM) button. This cycle provides a quick verification that
the cold and hot water valves, dispenser, and pump motor are
working. It also includes door lock, drain, and spin operations.
6. Dryer Field Diagnostic Cycle – With the entire display flashing,
this cycle is started by pressing the upper middle (PERM PRESS)
button. Additional time can be added by pressing the upper left
(COTTON/WHITES) button. This cycle can be used to credit lost
customer dryer time.
Pressing the lower right (COLD) button will exit diagnostic mode
and cancel a diagnostic cycle in process.
PAGE 5
FOR SERVICE TECHNICIAN ONLY - DO NOT REMOVE OR DESTROY
FAILURE DISPLAYS
Active dryer diagnostic codes are shown on the upper portion of
the display and active washer diagnostic codes are shown on the
bottom portion of the display.
DRYER DIAGNOSTIC CODES
If the set-up mode is entered and one of the following errors
has previously occurred, the appropriate diagnostic code will
be in the display on the upper portion of the screen.
DRYER
DISPLAY EXPLANATION
d 5
d 9
d 13
d 16
F 01
F 22
F 23
F 70
F 71
COIN 1 ERROR
Blocked coin 1 or coin drop UI control circuit failure
(coin recognition and customer display disabled while
blockage persists).
LOW VOLTAGE DETECTION ERROR
Voltage detected below 90 VAC for 8 seconds.
COIN 2 ERROR
Blocked coin 2 or coin drop UI control circuit failure
(coin recognition and customer display disabled
while blockage persists).
GENERATION 2 DEBIT CARD
READER ERROR
Not receiving communications from installed debit
card reader in Enhanced (Generation 2) Debit mode.
DRYER MOTOR CONTROL
CIRCUIT ERROR
Dryer motor control circuit error (cycles and price
display disabled until diagnostic code is manually
cleared). The control doesn’t know if the motor relay
is bad (stuck on), the motor relay drive circuit is bad
(shorted), causing the motor relay to stay on, or the
motor relay feedback circuit is bad.
EXHAUST THERMISTOR OPEN ERROR
Exhaust thermistor open, temperature drops
below 18°F (>50 kΩ) for 1 minute in Run mode,
or immediately in Factory Diagnostic Mode.
EXHAUST THERMISTOR
SHORTED ERROR
Exhaust thermistor shorted, temperature above 250°F
(<500 Ω) for 1 minute in Run mode, or immediately
in Factory Diagnostic Mode.
COMMUNICATION FAILURE
FROM DRYER CCU TO UIC
UIC is not receiving communications from CCU
(cycles and price display disabled while error persists
or is manually cleared).
COMMUNICATION FAILURE
FROM UIC TO DRYER CCU
CCU is not receiving communications from UIC
(cycles and price display disabled while error persists
or is manually cleared).
DRYER
DISPLAY EXPLANATION
F 73
F 74
UIC MICROPROCESSOR ERROR
UIC Microprocessor is not able to read or verify
EEPROM (cycles and price display disabled until
diagnostic code is manually cleared).
UIC EEPROM ERROR
UIC EEPROM memory is a CRC failure (cycles and price
display disabled until diagnostic code is manually cleared).
WASHER DIAGNOSTIC CODES
If the set-up mode is entered and one of the following errors
has previously occurred, the appropriate diagnostic code will
be in the display on the lower portion of the screen.
WASHER
DISPLAY EXPLANATION AND RECOMMENDED PROCEDURE
F 01
F 04
F 11
WASHER CCU ERROR
Communication error within the Central Control Unit
(CCU); the pump drive in CCU fails to activate; one of
the main relays in the CCU fails to activate.
Possible Causes
– A power surge/drop.
– Reversed polarity or mis-wire, along with open
ground switches.
Surge/drop procedure
1. Clear error code.
2. Unplug washer or disconnect power.
3. Wait 2 minutes before reconnecting power.
4. Verify CCU by running a short diagnostic test.
Mis-wire or reversed polarity procedure
1. Clear error code.
2. Check outlet for correct polarity. To check within
washer for polarity at the RFI, white to cabinet
ground must be 0 volts.
3. Check the white wire on the RFI filter to ensure correct
polarity. White wire needs to be toward front of washer.
If the RFI filter is not easily accessible, the polarity test
can be made on the washer CCU. Disconnect power.
Check for resistance or continuity at IF2 from terminal
#1 to ground or any bare metal on the washer cabinet.
Reading should be infinite or show as an open circuit.
4. Check that the ground switches of the toe panel
and rear panel are correctly closed.
5. Verify CCU by running a short diagnostic test.
If these procedures do not correct the failure, replace
the CCU control.
ACCELEROMETER FAILURE
The accelerometer component failed. The X, Y, and Z
limits are outside of the normal range.
Possible Causes
– CCU dislodged from mounting.
– Accelerometer failure on CCU.
MCU ERROR
Motor Control Unit (MCU) has a failure.
Possible Causes
– A repeating under or overvoltage condition. If the
failure occurs during a high-speed spin, the door
remains locked for 2 minutes.
– A broken drive belt.
Procedure
1. Clear error code.
2. Unplug the washer or disconnect power.
3. Using Ohm meter, check wire harness connections
for continuity between drive motor and the MCU.
4. Check the motor and do a continuity test (page 15).
5. The MCU is good if the motor operates in diagnostic mode.
If the motor fails to turn on, replace the MCU.
PAGE 6
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