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We really can use some advice on a Whirlpool Cabrio washer # WTW6600SG2.
Customer complaint: Set on ‘NORMAL’ the unit will fill and run in the wash cycle for about 15 mins. pause, drops to 5 mins on display, drains and spins, end of cycle.
There are NO fault codes showing or saved.The control was replaced about 1.5 years ago. The unit ran fine after the board replacement.

Model Number
WTW6600SG2.
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It may not be sensing enough water coming in. Water must cover the wash plate to ensure the basket is floating prior to agitation. Enabling agitation without enough water may cause a fault condition to occur. Have you run the program to see any faults yet?

C1
Warm water fills
through Fresh and
Detergent valves,
then Fresh valve
until basket floats
(disengages);
then washer
continues filling
through Fresh and
Detergent valves
to minimum water
level.
If no water or fill
temperature is wrong,
go to Manual: Water
Valves, page 2.
If basket does not float
or disengage,
determine cause of
friction.
C2
Cold water fills
through Bleach
valve for
10 seconds.
If no water in bleach
cup go to Manual:
Water Valves, page 2.
C3
Hot water fills
through Fabric
Softener valve for
10 seconds.
NOTE: Step will
occur but no
water can be
dispensed with
models that do
not have a fabric
softener valve.
If no water in fabric
softener cup go to
Manual: Water Valves,
page 2.
C4
Warm water fills
through Detergent
valve for
10 seconds.
If no water in detergent
cup go to Manual:
Water Valves, page 2.
C5 Agitate for
15 seconds.
If no wash action go to
Manual: Motor, Agitate;
page 2.
C6 Recirculate for
10 seconds.
If water is not being
recirculated go to
Manual: Pumps,
page 2.
C7
Drain to basket
engaged plus
timed drain for
10 seconds.
If water is not draining
go to Manual: Pumps,
page 2.
If basket does not
engage determine
cause of friction.
C8 Drain & slow spin
23 rpm.
If drain pump is not on
go to Manual: Pumps,
page 2.
If basket is not turning
go to Manual: Motor,
page 2.
C9 Coast to 0 rpm.
If basket does not stop
spinning within
5 seconds, press STOP
or PAUSE/CANCEL and
restart test.
(none)
(Test
ends)
End of Cycle
beep.
If no end of cycle beep,
make sure cycle signal
is on. From Setting
Mode, pressing
buttons should sound
valid key press beep.
DIAGNOSTIC: Unsuccessful Entry
If entry into diagnostic mode is unsuccessful (see steps
1 and 2 of Activation of Automatic Diagnostic Test
Mode, at left), refer to the following indications and
actions:
Indication 1: None of the indicators or display
turns on.
Action: Press POWER button to enter setting mode.
➔ If indicators come on, try to change the function
for the button used to activate the diagnostic test
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.
■ 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 failed electronic control
assembly in anti-static bag, observe above
instructions.

DIAGNOSTIC GUIDE
Before servicing, check the following:
■ Make sure there is power at the wall outlet.
■ Has a household fuse blown or circuit breaker tripped?
Time delay fuse?
■ Are both hot and cold water faucets open and water
supply hoses unobstructed?
■ All tests/checks should be made with a VOM (volt-ohmmilliammeter)
or DVM (digital-voltmeter) having a
sensitivity of 20,000 Ω per volt DC or greater.
NOTE: Avoid using large diameter probes when
checking harness connectors as the probes may
damage the connectors upon insertion.
PART NO. W10026571C PAGE 2 PIÈCE No W10026571C
FOR SERVICE TECHNICIAN ONLY – DO NOT REMOVE OR DESTROY POUR LE TECHNICIEN SEULEMENT – NE PAS ENLEVER NI DÉTRUIRE
mode. If that button fails to change the function,
something is faulty with the button, and it is not
possible to enter the diagnostic mode.
➔ If no indicators come on after pressing POWER
button, go to TEST #1, page 4.
Indication 2: Fault code flashes from the
display.
Action: Review the Display Fault/Error Codes table,
page 3, for the recommended procedure.
DIAGNOSTIC: Saved Fault Codes
If there are saved fault codes (as indicated in step 3 of
Activation of Automatic Diagnostic Test Mode, page 1),
the most recent fault code will be displayed and
alternately show “F” and “XX” where XX is the fault
code, and all the cycle selector indicators flash.
Press and release
the same button
used to activate
Diagnostics
➔ Second most recent fault code is
displayed.
Repeat ➔ Third most recent fault code is
displayed.
Repeat ➔ Fourth most recent fault code is
displayed.
Repeat ➔
All indicators momentarily turn
off, then stay on. After 5 seconds,
Automatic test cycle begins.
NOTE: Fault codes are retained.
ACTIVATION OF MANUAL DIAGNOSTIC
TEST MODE
1. Carefully read and perform steps 1 and 2 under
Activation of Automatic Diagnostic Test Mode,
page 1, and press the same button once during the
5 second display time of the 88.
NOTE: If the button is not pressed within 5 seconds,
the Automatic test will start (after saved fault codes).
2. If done successfully, a single beep occurs and the
two-digit display shows the control ID# for
3 seconds, then displays 00 and the Add A Garment
indicator LED flashes. See Diagnostic: Manual,
below.
DIAGNOSTIC: Manual
Assumes Manual Diagnostic mode has been entered,
two-digit display shows 00, and ADD A GARMENT
indicator LED is flashing.
NOTE: If there is no activity (button press, cycle select)
within 5 minutes, the control automatically exits
Diagnostic mode and enters standby mode.
Manual: Water Valves (See ACTIVATION, above)
To check FRESH valve select or press the following:
WHITEST WHITES ➔ START (turns on Fresh valve,
cycle indicator flashes) ➔ WASH/RINSE TEMP
(enables fill of Hot, Warm, Cool or Cold, or no water
according to WASH/RINSE TEMP selection and
indicator) ➔ START (turns off Fresh valve, cycle
indicator is steady on).
To check DETERGENT valve select or press the
following:
HEAVY DUTY➔ START (turns on Detergent valve,
cycle indicator flashes) ➔ WASH/RINSE TEMP
(enables fill of Hot, Warm, Cool or Cold, or no water
according to WASH/RINSE TEMP selection and
indicator) ➔ START (turns off Detergent valve, cycle
indicator is steady on).
To check FABRIC SOFTENER valve select or press
the following:
NORMAL ➔ START (turns on Fabric Softener valve,
cycle indicator flashes) ➔ WASH/RINSE TEMP
(enables fill of Hot, Warm, Cool or Cold, or no water
according to WASH/RINSE TEMP selection and
indicator) ➔ START (turns off Fabric Softener valve,
cycle indicator is steady on).
To check BLEACH valve select or press the
following:
CASUAL ➔ START (turns on Bleach valve with cold
water, cycle indicator flashes) ➔ START (turns off
Bleach valve, cycle indicator is steady on).
NOTE: Washer can only fill cold through Bleach valve.
➔ If any valve fails to turn on go to TEST #2, page 4.
Manual: Pumps (See ACTIVATION, at left)
Models with Push-button cycles:
Press and release:
CLEAN WASHER
or DRAIN & SPIN

Turns on recirculation pump,
indicator is steady on.
Repeat ➔
Turns off recirculation
pump, indicator turns off.
Repeat ➔
Turns on drain pump,
indicator flashes.
Repeat ➔
Turns off drain pump,
indicator turns off.
Models using Cycle Selector:
Select CLEAN WASHER or DRAIN & SPIN.
Press and release:
START ➔ Turns on recirculation pump,
cycle indicator is steady on.
Repeat ➔ Turns off recirculation pump,
indicator is steady on.
Repeat ➔ Turns on drain pump,
indicator flashes.
Repeat ➔ Turns off drain pump,
indicator is steady on.
➔ If pumps fail to turn on, go to TEST #7, page 6.
Manual: Door Lid Switch (See ACTIVATION, at
left)
Opening the door should cause the Clothes Clean or
Done status indicator to turn off. Closing the door should
cause the indicator to turn on.
➔ If Clothes Clean or Done indicator does not turn
off or on, go to TEST #8, page 6.
Manual: Door Lid Lock (See ACTIVATION, at left)
NOTE: Door must be closed. If door is not closed, an
invalid button press beep will occur when performing
next step.
Press and release:
2nd RINSE or
EXTRA RINSE
➔ Door locks, Lid Lock
indicator turns on.
Repeat ➔ Door unlocks, Lid Lock
indicator turns off.
➔ If door does not lock or unlock, go to TEST #8,
page 6.
Manual: Motor (See ACTIVATION, at left)
Rotor Position Sensor (RPS): Uses Wash, Rinse
and Spin indicators to detect the three hall sensors.
Console may have up to two of these indicators on at
one time when the basket is not moving. Open door
and rotate basket by hand. The Wash, Rinse and Spin
status indicators should toggle on and off according
to direction the basket is being turned.
➔ If none of these indicators are on go to TEST #3,
page 4.
Spin: To activate Spin, door must be closed with door
lock enabled. See Manual: Door Lid Lock.
NOTE: If door is not closed, an invalid button press
beep will occur when performing next step.
Press and release:
SPIN SPEED, WATER
LEVEL or LOAD SIZE
➔ Motor/basket spins at
23 rpm.
Repeat ➔ Motor/basket spins at
530 rpm.
Repeat ➔ Motor/basket spins at
1000 rpm.
Repeat ➔ Motor turns off.
NOTE: Indicators above button scroll from top to
bottom.
➔ If motor fails to spin, go to TEST #3, page 4.
Agitate: Water must cover the wash plate (or agitator
vanes) to ensure the basket is floating prior to
agitation. Enabling agitation without enough water
may cause a fault condition to occur. See Manual:
Water Valves, at left.
Press and release:
SOIL LEVEL ➔ Gentle wash action.
Repeat ➔ Normal wash action.
Repeat ➔ Heavy wash action.
Repeat ➔ Motor turns off.
NOTE: Indicators above button scroll from top to
bottom.
➔ If motor fails to agitate, go to TEST #3, page 4.
ACTIVATION OF CONSOLE AND
INDICATORS DIAGNOSTIC TEST MODE
This test checks the cycle selector knob, indicators,
buttons, two-digit display and beeper.
1. Plug in washer or reconnect power.
2. Read through step 3 before continuing. From Standby
(Off) Mode press and release (key-dance) the
following buttons within 4 seconds:
SOIL
LEVEL ➔ WASH/RINSE
TEMP ➔ SOIL
LEVEL ➔ WASH/RINSE
TEMP
If successful, two-digit will display and you will
have 5 seconds to complete next step.
3. Within 5 seconds of showing in display, press
START (all indicators in display are illuminated and
88 is displayed.
➔ Press START a second time. This turns off status
indicators and two-digit display (all other
indicators remain illuminated).
➔ Press START a third time. This turns on status
indicators and two-digit display (all indicators are
illuminated).
4. Rotate WASH CYCLE selector back and forth.
Indicators will toggle on (or off).
5. Press buttons to verify function. Indicators will toggle on
(or off) and beep tone will sound when buttons are
pressed.
NOTE: Pressing SOIL LEVEL, SPIN SPEED,WATER
LEVEL or LOAD SIZE, andWASH/RINSE TEMP will cause
all indicators above these buttons to toggle on (or off) at
one time.
If any of the following occur during steps above, see
TEST #4, page 5:
✔ None of the indicators light up
✔ No beep sound is heard
✔ Some buttons do not light indicators
PART NO. W10026571C PAGE 3 PIÈCE No W10026571C
FOR SERVICE TECHNICIAN ONLY – DO NOT REMOVE OR DESTROY POUR LE TECHNICIEN SEULEMENT – NE PAS ENLEVER NI DÉTRUIRE
DEACTIVATION OF DIAGNOSTIC TEST
MODE
Press the STOP or PAUSE/CANCEL or POWER button at
any time to exit Automatic, Manual, or Console &
Indicators diagnostic test modes.
DISPLAY FAULT/ERROR CODES
Display
(Saved
Code)
EXPLANATION AND
RECOMMENDED PROCEDURE
Long Fill
LF flashes when the water level does not
change for a period of time OR water is
present but control does not detect the water
level changing.
➔ Is water supply connected and turned on?
➔ Are hose screens plugged?
➔ Is water siphoning out of the drain hose?
Check for proper drain hose installation.
➔ Is the pressure hose connection from the
tub to the machine/motor control pinched
or plugged?
➔ See TEST #2, page 4.
Long Drain
Ld flashes when the water level does not
change after the drain pump is on.
➔ Is the drain hose or the drain pump
clogged?
➔ Is the drain hose height greater than 96″?
➔ Is the pressure hose connection from the
tub to the machine/motor control pinched
or plugged?
➔ Is the pump running? If not, see TEST #7,
page 6.
(none)
Unbalanced Load
uL is displayed when the machine/motor
control detects an off-balance load, and is
steady on while the washer runs a mini-cycle
to rebalance the load.
➔ Display clears if mini-cycle successfully
rebalanced the load.
➔ If the mini-cycle is unsuccessful, uL will
flash until the door lid is opened, allowing
the customer to view and redistribute the
load.
Overloaded
oL flashes when the machine/motor control
detects a load size that exceeds the
washer’s capacity OR basket can not
disengage. This may signify:
➔ Load size exceeds washer capacity.
Remove excess laundry, then restart cycle.
➔ Mechanical friction on drive mechanism,
not allowing the basket to disengage.
Suds Detection
Sd is displayed when the machine/motor control,
by analyzing drag on the basket, detects a
suds-lock condition, and is steady on while the
control then runs a mini-clean out cycle. If the
clean out cycle is unable to correct the
over-sudsing problem, the cycle ends and Sd
flashes in the display. This may signify:
➔ Load is bunched or twisted around agitator.
➔ Excessive detergent usage.
➔ Basket cannot engage during drain step.
➔ Mechanical friction on drive mechanism,
not allowing basket to engage.
Display
(Saved
Code)
EXPLANATION AND
RECOMMENDED PROCEDURE
Open/Close Door Lid
lid flashes when the following conditions
occur:
➔ User presses START with lid open.
➔ User presses START after 2 consecutive
machine cycles without opening lid.
➔ The machine/motor control cannot detect
the lid switch opening and closing properly.
➔ See TEST #8, page 6.
(none)
Pump Out (lid opened)
Po flashes when drain pump begins pumping
out water from tub upon activation by the door
lid having been left open for more than 10
minutes.
➔ Close door lid to stop drain pump.
(none)
Hot, Cold Reversed
HC flashes when the hot and cold inlet hoses
are reversed.
➔ Make sure inlet hoses are connected
correctly.
➔ If hoses are installed properly, Automatic
Temperature Control may be stuck in low
resistance range. See Test # 5 page 5.
Door Lock Failure
dL flashes if the following conditions occur:
➔ Door lid is not closed completely due to
interference.
➔ Check for lock interference with lid or lock
bezel.
➔ Wash media buildup is preventing the lock
bolt from extending.
➔ Machine/motor control detects open door lid
switch when attempting to lock.
➔ Machine/motor control cannot determine if
door lock is in a locked state.
➔ See TEST #8, page 6.
Door Unlock Failure
dU flashes if the following conditions occur:
➔ Excessive force on door lid is preventing
lock bolt from retracting.
➔ Wash media buildup is preventing lock bolt
from retracting.
➔ Machine/motor control cannot determine if
door lock is in an unlocked state.
➔ See TEST #8, page 6.
Pressure Signal Out-of-Range
F then 1 flashes when the control detects an
out of range pressure signal.
➔ Check pressure hose connection from tub
to machine/motor control. Is hose pinched
or kinked?
➔ If F then 1 repeats numerous times after
POWER is pressed and the pressure hose
connection is not pinched or kinked,
replace the machine/motor control.
Keypad/User Interface Failure
F then 2 flashes when in:
➔ Diagnostic Test mode if a stuck key is
detected.
➔ Standby mode if there is a user interface
mismatch.
➔ See TEST #4, page 5.
Display
(Saved
Code)
EXPLANATION AND
RECOMMENDED PROCEDURE
ATC Thermistor Open/Short
F then 40 flashes when the ATC Thermistor is
detected to be open or shorted.
➔ See TEST #5, page 5.
Motor RPS Thermistor Open/Short
F then 41 flashes when the motor rotor
position sensor (RPS) thermistor is detected to
be open or shorted.
➔ See TEST #3, page 4.
NOTE: This error code is only displayed when
viewing saved fault codes.
➔ See Diagnostic Test, page 1, for
accessing saved fault codes.
Heater Thermistor Open/Short (Not
used)
F then 42 flashes when the heater thermistor
is open or shorted.
Motor Stalled
F then 50 flashes when the motor rotor
position sensor (RPS) senses no rotation.
➔ Does basket turn freely? If not, make sure
bottom shipping pack has been removed.
Determine cause of friction.
➔ If basket turns freely, see TEST #3, page 4.
Motor RPS Failure
F then 51 flashes when there is a motor rotor
position sensor (RPS) failure or lower harness
problem.
➔ See TEST #3, page 4.
Motor Stop Failure
F then 52 flashes when the motor rotor position
sensor (RPS) senses rotation after stop
command.
➔ See TEST #3, page 4.
Motor Control Overtemp
F then 53 flashes when the machine/motor
control detects high temperature for the motor
module.
➔ Does basket turn freely? If not, determine
cause of friction.
➔ If basket turns freely, see TEST #3, page 4.
Motor Control Overcurrent
F then 54 flashes when the machine/motor
control detects high current for the motor
module.
➔ Does basket turn freely? If not, determine
cause of friction.
➔ If basket turns freely, see TEST #3, page 4.
Basket Re-engagement Failure
F then 72 flashes when the basket check
routine fails to determine if the basket is
re-engaged after being disengaged.
➔ Is the basket floating? if yes, pump out
water. See Long Drain above left.
➔ Does basket turn freely? If not, determine
cause of friction.
PART NO. W10026571C PAGE 4 PIÈCE No W10026571C
FOR SERVICE TECHNICIAN ONLY – DO NOT REMOVE OR DESTROY POUR LE TECHNICIEN SEULEMENT – NE PAS ENLEVER NI DÉTRUIRE
TROUBLESHOOTING GUIDE
PROBLEM
POSSIBLE CAUSE/TEST
NOTE: Possible Cause/Test must
be performed in the sequence
shown for each problem.
WON’T POWER
UP
(No response
when buttons
are pressed.)
1. Supply connections. See
TEST #1, at right.
2. Unplug washer or disconnect
power.
3. Check harness connections.
4. User interface assembly. See
TEST #4, page 5.
WON’T START
CYCLE
(No response
when Start
button is
pressed.)
1. Supply connections. See
TEST #1, at right.
2. Unplug washer or disconnect
power.
3. Check harness connections.
4. User interface assembly. See
TEST #4, page 5.
WON’T SHUT
OFF WHEN
EXPECTED
1. User interface assembly. See
TEST #4, page 5.
2. Lid switch. See TEST #8,
page 6.
CONTROL
WON’T ACCEPT
SELECTIONS
User interface assembly. See
TEST #4, page 5.
WON’T
DISPENSE
1. Check water connections to
machine.
2. Check for plugged screen in
water source.
3. Log valve. See TEST #2, at
right.
WON’T FILL 1. Check water connections to
machine.
2. Check for plugged screen in
water source.
3. Log valve. See TEST #2, at right.
4. Unplug washer or disconnect
power.
5. Check harness connections.
OVER FILLS 1. Unplug washer or disconnect
power.
2. Check pressure hose connections.
3. Check to see if the pressure
hose has a hole, is pinched or
plugged.
4. Water level and calibration. See
TEST #6, page 6.
WON’T
AGITATE
1. Make sure basket is floating.
2. Unplug washer or disconnect
power.
3. Check harness connections.
4. Lid switch. See TEST#8, page 6.
5. Motor. See TEST #3, at right.
WON’T SPIN 1. Lid switch. See TEST #8,
page 6.
2. Unplug washer or disconnect
power.
3. Check harness connections.
4. Motor. See TEST #3, at right.
WON’T DRAIN 1. Check drain hose installation.
2. Check for plugged drain hose.
3. Drain pump.SeeTEST#7, page 6.
INCORRECT
WATER
TEMPERATURE
1. Check for swapped water
connections to machine.
2. ATC (Automatic Temperature
Control). See TEST #5, page 5.
PROBLEM
POSSIBLE CAUSE/TEST
NOTE: Possible Cause/Test must
be performed in the sequence
shown for each problem.
ALL HOT FILLS 1. ATC thermistor stuck in high
resistance range.
2. ATC (Automatic Temperature
Control). See TEST #5, page 5.
WON’T
RECIRCULATE
WATER
1. Unplug washer or disconnect
power.
2. Check for plugged recirculation
hose.
3. Check for leaks in recirculation
system.
4. Recirculation pump. See
TEST #7, page 6.
DISPLAY IS
FLASHING
See Display Fault/Error Codes,
page 3.
TROUBLESHOOTING TESTS
TEST #1 Supply connections
This test assumes that proper voltage is present at the
outlet.
1. Unplug washer or disconnect power.
2. Access the machine/motor control assembly. See
Accessing & Removing the Electronic Assemblies,
page 6.
3. With an ohmmeter, check for continuity between the
neutral (N) terminal of the plug and P13-1 on the
machine/motor control. See figures 3 and 4, page 16.
➔ If there is continuity, go to step 4.
➔ If there is no continuity, replace the power cord.
4. In a similar way, check the continuity between the L1
terminal of the plug and P13-3 on the machine/motor
control. See figures 3 and 4, page 16.
➔ If there is continuity, go to step 5.
➔ If there is no continuity, replace the power cord.
5. Visually check that the P10 connector is inserted all
the way into the machine/motor control.
6. Visually check that the user interface assembly is
properly inserted into the front console.
7. If both visual checks pass, replace the user interface
assembly. See Reinstalling the Electronic
Assemblies, page 6.
8. Plug in washer or reconnect power.
9. Activate the Console and Indicators Diagnostic Test
mode, page 2 to verify repair.
10. If indicators still do not light, the machine/motor
control has failed:
➔ Unplug washer or disconnect power.
➔ Replace the machine/motor control assembly.
➔ Plug in washer or reconnect power.
TEST #2 Log Valve
This test checks the electrical connections to the valves,
and the valves themselves.
1. Check the relays and electrical connections to the
valves by performing the steps under Diagnostic:
Manual, then Manual: Water Valves, page 2. Each
step in the test activates a group of valves. The
following steps assumes one (or more) valve(s)
failed to turn on.
2. For the valve(s) in question check the individual
solenoid valves:
➔ Unplug washer or disconnect power.
➔ Disconnect connector P1 and P2 from the
machine/motor control. See figure 4, page 16.
➔ Check harness connection to solenoid valves.
3. Check resistance of valve coils at contacts P1 and P2
shown in the wiring diagram on page 15. Resistance
values should match those shown.
➔ If resistance readings are tens of ohms outside of
range, check the harness pins. If harness is OK,
replace the entire log valve assembly.
➔ If resistance readings are within range, replace the
machine/motor control assembly.
4. Reconnect connectors P1 and P2 to the
machine/motor control.
TEST #3 Motor Circuit
This test checks the wiring to the motor and rotor
position sensor; and the motor and rotor position sensor
themselves.
NOTE: Drain water from tub.
1. See

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