Maytag FAV6800A, FAV7500A Technical Information

Top Load Washer⎯Technical Information

FAV6800A*, FAV7500A*

• Due to possibility of personal injury or property damage, always contact an authorized technician for servicing or

repair of this unit.

• Refer to Service Manual 16022808 for detailed installation, operating, testing, troubleshooting, and disassembly

instructions.

CAUTION

!

All safety information must be followed as provided in Service Manual 16022808.

!

To avoid risk of electrical shock, personal injury or death; disconnect power before servicing, unless
testing requires power.

WARNING

©2005 Maytag Services 16023155 1

Troubleshooting

!

WARNING

To avoid risk of electrical shock, personal injury or death; disconnect power before servicing, unless
testing requires power.

Will Not Start

• Plug cord into live electrical outlet.

• Check fuse or reset circuit breaker to outlet.

• Close lid and push the START/PAUSE button to
start washer. The START/PAUSE LED should
change from flashing to on continuously.

• Check to see if the washer is in a pause or soak
period of the cycle. Wait briefly for cycle to
advance.

• Check for restricted drain system.

• Check the lid, lid latch mechanism, and circuitry
(see Will Not Lock).

Leaking

• Make sure supply hose connections are not

leaking. Check for rubber gasket damage due to
over-tightening.

• Make sure end of drain hose is correctly inserted

and secured to drain facility.

• Check bottom of tub around the pulley. See

special instructions page 11.

• Check internal hose connections (fill & drain

systems, hoses & clamps).

• Check tub cover. Remove, reposition and reinstall

the tub cover seal. Seal seam must be at the top
of the tub cover.

• Make sure water dispensing system on inner lid is

securely attached to lid.

• Make sure dispenser valve is securely attached to

mounting bracket.

• Check standpipe for leak. Wrap a dry rag around

the standpipe opening. If rag becomes wet leak is
fault of home plumbing. Be sure the standpipe is
capable of accepting the flow of water from the
washer.

• Check the lid hinges if water is coming out behind

the lid.

• Check for bowing of lid where water enters

detergent dispenser.

Display Lights Up When Lid is Opened or Closed

• This is normal behavior.

No Tumble

• Start normal cycle with an empty machine and

allow a fill to check tumble.

• Fabric cycles such as NORMAL, DELICATES,

HAND WASH, & WRINKLE CONTROL only
tumble periodically, every 60 seconds.

• Check for loose connections at machine control

board, motor control board and motor.

• Perform

Motor and Motor Control Test

.

• Washer does not tumble during most fills or

during presoak.

heating.

• Check belt.

Will Not Spin

• During fill cycle – If machine tumbles and spins
simultaneously replace clutch assembly.

• During spin cycle – If machine tumbles and spins
simultaneously replace clutch assembly.

• Perform

Motor and Motor Control Test

.

• Check belt.

• Check that the machine control correctly senses
that all 3 water levels are empty. See

.

Test

Board Input

• Tub Displacement Sensor disconnected, or loose
wire.

No Water Fill

• Go to

No Fill Test

.

• Check to make sure water supply is turned on
fully.

• Normal water level is 1 to 7 inches inside the
spinner.

• Check electrical circuit and connections at the
water valve, and pressure switch.

• Check for kinks in inlet hoses.

• Check for clogged inlet screens.

• Visually check hot and cold separately for fill.

• Check for low water pressure. May be dependent
on pressure entering home. Variations may occur
due to usage in the home at the time machine is
used.

• Check for frozen pipes and hoses.

Tub Full of Suds

• Check for restricted drain system.

• Check for loose wire connections at control board
and pump.

• Perform

Motor and Motor Control Test

.

• Use high efficiency or low sudsing detergent
specially formulated for front load washers.

• Run the clothes washer through another complete
cycle using the coldest water and no detergent.

• Reduce detergent amount for that specific load
size and soil level. Towel loads have a minimal
amount of soil present and typically create more
suds.

• Check to see if belt is off motor and pulley.

Wet Clothes

• Very small clothes loads can cause unbalanced
loads - add additional towels.

• Excessive suds may have been present.

• Check Tub Displacement Sensor connection and
main harness connector at machine control
board.

• Washer with heat option does not tumble while

16023155 ©2005 Maytag Services

2

Troubleshooting

!

To avoid risk of electrical shock, personal injury or death; disconnect power before servicing, unless
testing requires power.

• Check Tub Displacement Sensor for 0 to 3.0 Volts
DC output voltage between ground and the board
input. Check for 12 Volts DC input voltage
between the ground and the board output. Only
check for voltage at the Tub Displacement
Sensor. Do not perform a continuity check. See
Tub Displacement Sensor Diagnostics (pg 10).

• Excessive motion was detected in spin (dc or LL)
Run Quick Spin Test with an empty tub to check
Tub Displacement Sensor and Machine Control
Board.

• Check for restricted drain system.

• Perform

Will Not Lock

• Lid not all the way closed or not properly aligned.

• Check electrical connections at lock assemblies,
machine control board, and Motor Control Board.

• Magnet missing. (Located on the back side of
dispenser assembly inner lid, front Left corner).

• Laundry load is too large to close lid.

• Check system relay for welded contacts.

(Diagnostic code 34) Disconnect power.
Continuity between p.6 pin 1 to p.8. pin 1 at the
Machine Control Board connector.

• Go to Lid Lock Test.

• Make sure inner lid is properly assembled to lid.

• Make sure door lock bumpers are fully seated to
top cover.

Will Not Unlock

• Press Off. The motor control is not responding if
it takes 4 minutes to unlock. The motor control is
either bad or disconnected.

• Unplug and reconnect power cord. Wait 20
seconds for machine to unlock.

• Check lid locked switch circuit. Circuit should be
closed at machine control.

input/output chart)

• Check for loose electrical connections at lid lock
and at machine control board.

• Push lid closed to make sure nothing from inside
is pressing against it which may keep it from
unlocking.

• Perform
Motor and Motor Control Test section).

• If necessary, remove clothes by disconnecting
power to washer, and open top cover with a putty
knife.

Will Not Drain

• Check for restricted drain system.

• Check low, medium, and high water fill completion.

Go to

• Check for 120 VAC at the pump when a spin cycle

is selected < 550 rpm.

Motor and Motor Control Test

(See board

Motor and Motor Control Test

No Fill Test

.

. (see

WARNING

• Go to
test.

• In cold climates check for frozen Drain Hose.

• Too Hot/Too Cold: This washer uses a reduced
amount of water, while the control board meters
the incoming flow to regulate the actual
temperature of the water in the tub. This may
appear to be significantly warmer/cooler than
expected.

• Check that both faucets are on fully.

• Make sure the temperature selection is correct.

• This washer will compensate for reversed fill
hoses. See Hose Reversal Detection.

• Make sure water heater is set to deliver a minimum
of 120°F (49°C) hot water at the tap. Also check
water heater capacity and recovery rate.

• If the water heater is located a long distance from
washer, the water line may need to be purged prior
to starting wash cycle.

• Disconnect inlet hoses and clean screens.

• The washer will need to go through a Hot / Cold
cycle if the fill hoses were previously installed
incorrectly and then corrected.

• Check Water Valve Thermistor. Resistance at
room temperature is 61700 ohms.

input/output chart)

Noise / Cabinet Hits

• Level the machine .

• Check sensor (refer to Tub Sensor Test).

• Check Strut and Strut Isolator for proper operation.

• Check for Diagnostic Code “10”.

If the consumer observes codes on display, see table
below.

LED

Display

CL

dc

FL

LO

Board Output Test

Wrong Water Temperature

Consumer Information Codes

Description

Closed: Lid is closed.

Distribute Clothes: The load is
unbalanced, preventing high speed
spin. Redistribute clothes.

Failed to Lock: The machine has
repeatedly tried to lock the lid. Make
sure the lid is shut completely.

Locked: Lid has failed to unlock ­the machine has repeatedly tried to
unlock the lid. Push lid closed to
make sure nothing from the inside is
pressing against the lid, preventing
unlocking.

and perform pump out

(See board

©2005 Maytag Services 16023155

3

Troubleshooting

!

To avoid risk of electrical shock, personal injury or death; disconnect power before servicing, unless
testing requires power.

LED

Display

Lr

nd

OP

od

nF

PF

Sd

UL

UC

UB

LL

CL

oL

Service Mode

Service Mode enables service personnel to verify the
operation of the washing machine and diagnose
problems. Service Mode can be entered in the middle
of any wash cycle without interrupting the cycle.
While in Service Mode, the technician can cancel the
current cycle, set a continuous running mode, start a

Description

Locked Rotor: The machine has
repeatedly tried to turn the motor.

No Drain: The machine has tried to
drain.

Lid is Open: Make sure it is fully
closed before starting cycle.

Open the Lid: The lid has not been
opened for the last three completed
cycles.

No fill: the machine has tried to fill.
See No Water Fill.

Power failure: Power to the machine
has been lost during the last cycle.
This may also occur on start up of a
new machine due to factory testing.
Check the lid. Press any key to
return the display to normal activity.

Suds: Machine has detected high
level of suds. The machine will alter
its cycle for this situation. Use hE
detergent or reduce the amount of
detergent.

Latch Unlocked: Close lid tightly to
enable locking.

Continuous Unbalanced Circuit. See
Wet Clothes Troubleshooting.
Improper signal from Tub
Displacement Sensor. Check
Pressure Switch before replacing
Tub Displacement Sensor

See Diagnostic Code 10

Large Load Detected

Clear To Reset Cycle Counts

Machine Paused-Load Wedging

WARNING

variety of special service tests and view diagnostic
displays.

Enter / Exit Service Mode

To enter Service Mode press the

Spin Only

beeps. The motor speed will be displayed when
started (motor not running display will be 00). The
present state of the machine will not be changed. (i.e.,
the current cycle in progress will not be interrupted
and only the display will change).

To exit: 1) Press
3 seconds again, or 2) press
machine.

The following table summarizes special tests and
features available in Service Mode, along with
methods of activation and cancellation.

Accessing Service Tests and Diagnostic Features
while in Service Mode.

Test or Display

Quick Spin

Test

Hold Quick

Spin Step

(holds
predefined
RPM)

Fast

Time­Down /
Advance
to Next
Step

Quick



Hold Quick
Service Cycle
Step

Membrane Test

IN

Service
Cycle

Enviro Plus

keys for three seconds or until the control

Enviro Plus

Press LED to

Press

Wash

Press

Wash

test)

Press

Wash

cycle

Press

Off

Start

Hand

Hand

(during

Quick

during

and

, or 3) unplug the

Wash/Rinse

↑ (up)

Temp

key

Board

Input

Test

Signal

Press
(up) and ↓
(down) together

Press

Presoak

(then individual
buttons to test)

Super

Press

Wash

↑

and

Spin Only

Press LED to

Press
Service Mode)

Press

Wash

hold & resumes
next step)

keys for

Cancel

Off

Hand

(cancels

N/A

Off

Press
exits Service
Mode)

Signal

Press
(up) and ↓
(down) to
resume

Press

Off

after starting
test

Press

Super

Wash

(exits

(also

↑

twice

16023155 ©2005 Maytag Services 4

Troubleshooting



!

To avoid risk of electrical shock, personal injury or death; disconnect power before servicing, unless
testing requires power.

Test or Display

Press LED to

Start

Board
Output
Test /

System Check

Diagnostic
Code Display
(Initial)

All Diagnostic
Codes

Cycle Count
No. for
Diagnostic
Code

Clear All
Diagnostic
Codes

Display
Software
Version

Cycle Count

Quick Spin Test

While in Service Mode, press the

Wash

Quick Spin test steps are as follows:

1) Lock the lid.

2) Spin to index speed 90 rpm and hold for 60
seconds. Pump drains machine.

Press

Delicates

Wrinkle

Press

Control

code displays

Press

Delay

Press and hold

Normal

diagnostic code
is displayed

Press

Wash

together while
displaying
diagnostic
codes

Press

Items

st

1
soft. revision

nd

2
revision

Signal +: 10’s
and 1’s digits
Signal -: 100’s
and 1000’s
digits
Colors/Jeans:
10-thousands &
100-thousand
digits

key to start a

– 1st

Set

↑ or ↓

while

Quick

+

Whites

Bulky

3 times

press- major

– minor soft

Quick Spin

Press LED to

Cancel

Press

Delicates

Press

Wrinkle

Control

N/A

Release

Normal

(returns to
diagnostic code
display)

Press

Items

again

Bulky

a 4th time

Hand

Test.

WARNING

3) Spin to index speed 150 rpm and hold for 6
seconds

4) Spin to index speed 350 rpm and hold for 6
seconds.

5) Spin to index speed 550 rpm and hold for 6
seconds.

6) Spin to index speed 700 rpm and hold for 6
seconds.

7) Spin to index speed 850 rpm and hold for 6
seconds. Pump out.

8) Coast down to 0 rpm chimes 3 times.

Speed Range Displayed

a) 0-99 rpm 0-99 (actual)

b) 100-999 rpm Speed X 10 ex: 85.= 850rpm

Hold Quick Spin Step

Hand Wash

If the
during the Quick Spin test, the machine will
hold at the next highest index speed for up to
30 minutes. To cancel press the Hand Wash
key again.

Fast Time Down Test

While any test or cycle is running in
Service Mode, pressing the
key will advance the program to the next
cycle stage.

For example if in one of the following:

Stage of
Wash Cycle



of all systems. If display shows od then open and
close lid. Pressing
next cycle.

Presoak

Wash

Spin/Drain

Rinse

Quick Service Cycle

While in Service Mode, pressing the

Wash/Rinse Temp

Service Cycle. This will be a quick check

Advances To

End of Presoak

Every 5 Minutes of
Wash Time

End of the
Spin Profile

End of Rinse

Quick Wash

key is pressed again

key will start a Quick

will advance to the

Quick Wash

©2005 Maytag Services 16023155 5

Troubleshooting

!

To avoid risk of electrical shock, personal injury or death; disconnect power before servicing, unless
testing requires power.

The following steps are performed: Display shows
“sc”.

1. Lock lid and pump starts.

2. Cold bleach fill. Energize the cold and bleach
water valves to low setting. Advance to next step
if water is not connected to machine.

3. Tumble using 48 rpm tumble for 10 seconds.

4. Tumble with hot fill: Continue tumble while
energizing hot water valve for 5 seconds.

5. Warm softener fill: Energize cold water and fabric
softener valves until medium level is reached.
Advance to next step if water is not connected to
machine.

6. Drain and Spin to 850 rpm.

7. Display a “PA” (Passed) continuously for 5
seconds if no diagnostic codes were logged
during the test.

8. Unlock the lid when the RPM is zero.

If a diagnostic code is logged during the test, the right­most dot will turn on and stay on until quick service
cycle test has ended. Any diagnostic code logged
during this test will result in failure of the test, but will
not necessarily stop the test.

During the Quick Service Cycle, pressing the

Wash

key will advance to the next step. Pressing the

Hand Wash

current step for up to 30 minutes or until
is pressed again. All LEDs should flash on and off
while the system is suspended or on hold.

Presoak

key associated with the LED or set of LEDs. Each
time either set delay arrow is pressed the digits toggle
between a blank and 8. All keys (including the OFF
button) must be pressed within 5 minutes for this test
to pass. “PA” will be displayed for five (5) seconds
once all keys have been pressed and the test is
completed. Following 10 seconds of inactivity at any
point, this test will exit without any display.

Motor Control Board Output Test

1. Disconnect power to the washer.

2. Remove the front panel and disconnect the JP4
Connector from the Motor Control Board.

3. Reconnect the washer power cord to supply
voltage. Make sure the lid is closed.

key will suspend the machine at the

Membrane Pad Test

While in Service Mode, pressing the

Presoak

switch check that verifies switch
operation. All the LEDs (except

) can be toggled or slewed by pressing the

key will start a membrane

Quick

Hand Wash

WARNING

4. Press
seconds to activate Service Mode.

5. Access

Delicates

6. The lid must be locked to access

Board Output Test.
Colors/Jeans

LED will be on, indicating the system relay is
activated. If off, press
shut to activate.

7. Press
test. This will send 120VAC to the motor control
board. The motor control will execute a test
routine and the motor should run, rotating the
spinner at 50 rpm. There could be up to a 20
second delay before the spinner starts rotating.

8. If motor does not run: Check for 120 VAC at the
motor control board harness between L1 and
Neutral.

If voltage is present, then problem exists with the
motor and motor control system.

• Check for loose electrical connections at motor, and

motor control board.

• Check phase windings of the motor.

Illustration.

the motor control board.

Enviro Plus

Board Output Test

key. Display shows “ot”.

and

Spin Only

by pressing the

To lock the lid press

. To verify the test, the quick wash

Quick Wash

Whites

Ground
Line 1
Neutral
Harness

Motor
Harness

JP4
Harness

to start the motor control output

See Illustration

Motor Control Board/JP4Connector

If motor windings are good, replace

keys for 3

Motor Control

with the lid

See

16023155 ©2005 Maytag Services 6

Troubleshooting

!

To avoid risk of electrical shock, personal injury or death; disconnect power before servicing, unless
testing requires power.

If voltage is not present;

• Check for loose electrical connections at Machine
Control Board or broken wires in harness.

• Check lid actuator switch and related wiring. The lid
must be closed and locked by pressing

colors/jeans.

and the quick wash LED is lit.

IN

output after a key press. Pressing the
key again cancels the test. (Display shows in).

While in Service Mode press the following key to
check respective function.

Key

Normal
Wrinkle Control
Whites
Colors / Jeans
Bulky Items
Enviro Plus

Indicates Pressure Switch not satisfied for that

*

water level.
Indicates Pressure Switch satisfied for that water
level.

**The appropriate water level must be added before

running test.

1. For “High Water Level” enter the “

” and select

Test

” after water fill and enter “

Test
Functional Test

2. For “Medium Water Level” start a

After water fill stop cycle and enter “

Functional Test

3. For “Low Water Level” start a

After water fill stop cycle and enter “

©2005 Maytag Services 16023155

The system relay is then activated

Board Functional Test Input Control
Keys

While in Service Mode, pressing the

Super Wash

Input Test. This test turns on a specified

key will begin the Board

Super Wash

Function

Lid Position
Lock State
**High Water Level
**Medium Water Level
**Low Water Level
*** Water Temperature

*Display

or

or

or

Board Output

Spin Only

. Exit “

Board Output

Board

”.

Normal

Board

”.

Enviro Plus

Board

WARNING

or
or

cycle.

cycle.

7

Functional Test

***Note: For the water temperature, the value could

be three digits, in which case the first digit will be
displayed separately from the other two (2) digits. The
two displays will be shown alternately. Each
temperature will be displayed by default in Fahrenheit
units and can be changed to Celsius units by pressing
either Set Delay Time Arrow key (up or down).

Board Output Test

While in Service Mode, pressing the

begin the Board Output Test. This test turns

on a specified output after a key press.
(Pressing the
test.) All outputs will be turned off after five (5)

minutes.

While in Service Mode press the following key to
check respective function.

Key Function

Normal Hot Water Valve
Wrinkle Control Fabric Softener Valve
Whites Motor Control
Colors / Jeans
Bulky Items Bleach Valve
Spin Only Cold Water Valve
Quick Wash* Toggle System Relay
Presoak Drain Pump
Extra Rinse

*Note: Function may not occur for up to 20

seconds. While in the Board Output Test,
the Quick Wash LED is always ON.

When the Neptune TL is plugged in, the

Machine Control Board will check the lid
latch mechanism every 20 seconds. If
found to be locked with no cycle running,
the Control Board will send a signal to the
switch to unlock the lid.

The diagnostic codes can be viewed by using the

Delay Time

arrow key will cycle down the list one code at a time
each time it is pushed. The Set Delay Time up arrow
key will cycle up the list one code each time it is
pushed. The first time the
arrow key is pushed, the newest code will be

arrow keys. The

”.

Delicates

Delicates

Display Diagnostic Codes

The diagnostic code display can be
toggled on and off from Service Mode
by pressing the
The display will show a “d”.

key again cancels the

Lid Lock*

Lid Unlock*

Wrinkle Control

key will

key.

Set

Set Delay Time

Set Delay Time

down

down

Troubleshooting

g

!

To avoid risk of electrical shock, personal injury or death; disconnect power before servicing, unless
testing requires power.

displayed. A code generated during or after the
current cycle will be displayed with the rightmost dot

“.” turned “ON”.

Access Other Features

While a diagnostic code is displayed, if the

key is pressed and held, the machine will

Cycle

display the number of cycles since the diagnostic
code occurred. To clear the diagnostic list press the

Quick Wash

The cycle count for each diagnostic code will also be
reset to 0, but not the machine cycle count.

Diagnostic Codes

Diag.
Code

1 No Drain

2

3 No Fill

4

5

6

and

Whites

Description Trigger Action to be

The lid fails

to unlock

The lid fails

to lock

Continuous
unbalanced
circuit. Out

of balance

circuit

Locked
Rotor forcing
a shut down.

key while viewing the list.

The water

level fails to

drop below
the Low level
before a spin

Lid failed to
unlock after

multiple

attempts

Total fill 14

minutes

exceeded.

Lid failed to

lock after 11

attempts

See section

for unbal.

loads.

(During spin

only)

Locked rotor

is still locked

after 10

attempts.

Normal

taken

Displays "nd"
Go to "Will Not
Drain"
Troubleshooting
Section
Displays "LO"
Go to "Will Not
Unlock"
Troubleshooting
Section
Displays "nF"
Go to "No Water
Fill"
Troubleshooting
Section
Displays "FL"
Go to "Will not
unlock"
Troubleshooting
Section
Displays "UC"
Go to "Wet
Clothes"
Troubleshooting
Section
Displays "Lr"
Go to "Motor

Control Board
Output Test"

WARNING

Diag.
Code

Description Trigger Action to be

8

sensor fault.

or cabinet hit

10

11

15 Stuck Key

not achieved

16

17

wash cycles.

Water level

Unbalance

detected
during final
spin, which

prevented

the spinner

from

exceeding

500 rpm

Will not

remember

machine

settings

High speed

due to

torque.

The lid was
not opened

after

completed

Input signal

from water

level Sensor

is out of

range,

Washer will

beep and

pause the

wash cycle.

Less than 500
rpm due to an

unbalanced

load.

Difficulty in

reading

memory

Detected a

key pressed

more than 75

seconds. The

key is

assumed to

be stuck.

Speed less

than 400 rpm

a main

durin

wash cycle.

Did not sense

lid open after
the last three

completed

cycles.

taken

Displays "LE" Go to

“No water fill

troubleshooting”.

LED – Will display
“ub”
Go to "Wet
Clothes"
Troubleshooting
Section"

Go to "Clear
diagnostic codes"
Disconnect and
reconnect the
washer power cord
at power supply
outlet.
If condition still
exists, replace
machine control
board.
Go to "Membrane
Pad Check"
Check connection
of keypad to control
board.
Replace console if
necessary.

Go to "Wet
Clothes"
Troubleshooting
Section"

LED – Will display
“od”
Customer may have
tried to repeat wash
cycle without
opening the lid. Go
to "Lid Lock Test"

16023155 ©2005 Maytag Services 8

Troubleshooting

g

g

g

!

To avoid risk of electrical shock, personal injury or death; disconnect power before servicing, unless
testing requires power.

Diag.
Code

28

34

©2005 Maytag Services 16023155 9

Description Trigger Action to be

Check for loose
wire connections.
Clear the dia
code and recheck;
if reoccurs, perform

Diagnostic
Motor/Motor
Control Board test

Check for faulty
motor relay on the
machine control
board.

Go to "Lid Lock
Test"
Troubleshooting
Section

Go to "Will Not
Unlock"
Troubleshooting
Section

Replace motor
control board.

Replace motor
control board.

Go to "Wrong

Water
Temperature"

Troubleshooting
Section
Disconnect power.
Continuity between
p.6 pin 1 to p.8. pin
1 at the Machine
Control Board
connector.

18

22

23

24

25

Detected lid

lock switch

open during

cycle when

not

expected.

Detected lid
switch open
during cycle

(when not

paused).

Lid is locked

at start of

cycle

Motor high

RPM

detected two

times

Motor tach

signal exists

without

motor

running

Water valve

thermistor

failure

Welded

system relay

Open lid lock

switch with

motor

running.

Detected lid

sensor switch

open and the

lid locked

switch locked.

Lid lock is

locked and a

user tries to

start a cycle.

Motor tach

nal is seen

si

at maximum

speed.

Tach signal

exists without

torque input.

(Abnormal

condition

only)

Abnormal

h/low temp

hi

or ohm

resistance

seen

Change of

state of the

relay

taken

WARNING

Diag.
Code

nostic

40

Exit Service Mode

To exit: 1) Press
3 seconds again, or 2) press
machine. After five (5) minutes of inactivity (user key
presses) in Service Mode, the machine will exit the
Service Mode and resume normal operations.
Pressing the
Mode. If a cycle is running, cancel the cycle. Pressing
the
the individual test, while remaining in Service Mode. A
power loss during Service Mode will cancel this mode.

Hose Reversal Detection and Correction

The washing machine has diagnostic features that
determine if the hoses are reversed on the first
complete cycle after power up. The control board
monitors water temperatures during the wash cycle.

The control system is capable of detecting hot and
cold water intake hose reversal and will change the fill
temperature as necessary after the first cycle.
The control system stores and retains hot and cold
water intake hose reversal information which is
detected on the first three complete cycles after power
up.

The system reverts to factory defaults for the cold and
hot water valves and cancels hose reversal detection
if a diagnostic code 28 has been logged in a cycle.
See “Wrong Water Temperature” in the trouble
shooting tips, at the beginning of this document for
more information.

Description Trigger Action to be

Washer not

operating

due to

tumble not

functioning

Off

Start/Pause

Load bound

up.

Enviro Plus

key will completely exit Service

key while running a test will pause

and

Off

, or 3) unplug the

taken

LED – Will display
“oL”
The washer is
unable to complete
its cycle. The
paddles cannot
move. To continue,
separate and
redistribute the
load, then press
“start/pause”.

Spin Only

keys for

Troubleshooting

!

To avoid risk of electrical shock, personal injury or death; disconnect power before servicing, unless
testing requires power.

Torque Specifications

Spinner Support Shaft Nut 64-80 ft. lbs. Special
wrench required.

Tub Displacement Sensor Diagnostics
CAUTION: Do not perform continuity check directly on

Displacement Sensor due to the potential for
damaging the microprocessor chip in the sensor.

1. Enter the Service Mode by pressing and holding
the

Enviro Plus

seconds.

16023155 ©2005 Maytag Services 10

and

Spin Only

keys for three

Pulley clutch Bolt
96 in. lbs.

Clamp Ring 15­20 ft. lbs.

WARNING

2. Press the

3. Press

4. Push tub to back right corner so sensor extends
beyond the #2 mark molded on slider. Display will
show “UO” (Unbalance open).

5. Press

6. Pull tub to front left corner and push down so
sensor collapses to before the #1 mark molded on
slider. Display will show “UO” (Unbalance open).

NOTE: Moving the sensor midway between mark #1

Component Diagnostics

NOTE: Unplug lower harness connector under

Component

Drain Pump 2 and 11 WH

Pressure

Switch Low

Pressure

Switch Med

Pressure

Switch High

Super Wash

Delicates

1

.

2

Hand Wash

1

and mark #2 represents normal operation.

Hand Wash

Press
show “UC” (Unbalance Closed).

console and test from wire insertion
side.

.

key.

#2 Mark

#1 Mark

or

Delicates

Pin Wire

Check

4 and 13 BR and

Level

13 and 14 PU and

Level

1 and 9 GY/BK

Level

Color

Tub
Displacement
Sensor

. Display will

and

RD/BK

RD/W

H

RD/W

H

and

YL/BL

Range

0 to 30

Ohms

0 to 20

Ohms (no

water in

machine)

0 to 20

Ohms (no

water in

machine)

0 to 20

Ohms (no

water in

machine)

Troubleshooting

!

WARNING

To avoid risk of electrical shock, personal injury or death; disconnect power before servicing, unless
testing requires power.

Pin #8

Pin #14

Special Instructions Water Leak Around Pulley On
Tub Bottom

Insertion Side Lower Harness

Pin #1

Pin #9

2. If no water is inside the Transmission, check the
integrity of the O-Ring. Look for signs of water or
rust on and around the Input Shaft. If the O-Ring
is bad or there are signs of water or rust around
the input shaft, replace the spinner support, tub
seal and the outer tub.

3. If there was no water in the Transmission or
around the top of the Input Shaft, it is likely the
water was leaking through the Tub Seal. Replace
the Outer Tub and Tub Seal. Inspect the Spinner
Support for damage around the Tub Seal area.
Replace the Spinner Support if it is damaged.

4. The Clutch Assembly should be inspected for
signs of water or oil contamination. Clean Clutch

Water leaking around the pulley on the bottom of the
tub, check the following:

1. Remove the Transmission. The Transmission
should be approx. 1/3 full of oil. The oil in the
Transmission should be thick, similar to a
high viscosity motor oil. Tip the Transmission
slightly, the oil should move slowly. If the
Transmission is nearly full or if the fluid is very
thin and moves quickly, the Transmission has
water in it. Replace the Transmission, O-Ring,
Spinner Support, Tub Seal and Outer Tub.

Assembly as needed. Replace Clutch Assembly
when water or oil contaminates the roller clutches.

Note: Oil in a new Transmission is clear. During

operation, the oil will turn a dark color caused by
the special compounds in some of the
bushings.

Titan LED Washer Control Board Inputs Table

Item

Water Valve
Thermistor
Power Cord

Neutral 120 VAC Input to some relays

Ground Chassis

Lid Lock Switch This switch senses if the lid is

Lid Closed Switch This switch senses if the lid is

User Interface Membrane switch key pad 0 - 12 VDC Digital Input to Micro-

Tach from Variable
Speed Motor Control

Pressure switch

Medium water level 0 - 12 VDC Digital Input to Micro-

High water level 120 VAC Input to Micro-

Description Voltage Input type Input to Where Comments

0 - 3.3 VDC Analog Input to Micro-

Line 120 VAC Input to some relays

ground
0 - 12 VDC Digital Input to Micro-

locked

0 - 12 VDC Digital Input to Micro-

closed

Tach signal 0 - 12 VDC Digital Input to Micro-

Low water level 0 - 12 VDC Digital Input to Micro-

processor

processor and safety
circuitry

processor and
system relay coil

processor

processor and safety
circuitry

processor

processor

processor and some
relays

Closed when lid
is locked

Closed when lid
is closed

Open when key
is not pressed

Closed when not
satisfied
Closed when not
satisfied
Closed when not
satisfied

©2005 Maytag Services 16023155

11

Component Testing Information

!

To avoid risk of electrical shock, personal injury, or death, disconnect power to before servicing, unless testing
requires it.

Membrane Pad Continuity Checks

Unplug ribbon connector from display board. Touch probe of meter to the appropriate pin numbers listed in the chart.
Meter will show infinite unless the appropriate key is pressed.

Button

Super Wash 18 & 3 Start/Pause 6 & 4
Normal 5 & 3 Off 6 & 13
Wrinkle Control 6 & 3 Presoak 18 & 7
Delicates 18 & 12 Extra Rinse 18 & 13
Hand Wash 6 & 14 Signal - 18 & 4
Quick Wash 5 & 14 Signal + 6 & 7
Whites 18 & 14 Wash/ Rinse Temp 5 & 12
Colors/Jeans 6 & 12 Soil Level 5 & 13
Bulky Items 18 & 11 Spin 5 & 4
Enviro Plus 6 &11 Delay Time Increase 5 & 7
Spin Only 5 & 11 Delay Time Decrease 6 & 8

Note: When the Neptune TL is plugged in, the Machine Control Board will check the lid latch mechanism every 20
seconds. If found to be locked with no cycle running, the Control Board will send a signal to the switch to unlock the
lid.

Pin

Number

Pin # 2

Button Pin Number

WARNING

16023155 ©2005 Maytag Services 12

Wiring Schematic

!

To avoid risk of electrical shock, personal injury, or death, disconnect power to before servicing, unless testing
requires it.

WARNING

©2005 Maytag Services 13 16023155