Maytag MAT14PD User manual

Next Generation Top Load

Commercial Washer

Coin and Non-Coin

SERVICE MANUAL

MODELS: MAT14CS MAT14PD MAT14PR MAT15MN

W10251135

TECHNICAL EDUCATION

ii

WHIRLPOOL CORPORATION assumes no responsibility for any repairs made

on our products by anyone other than Authorized Factory Service Technicians.

FORWARD

This Maytag Service Manual, ”Next Generation Top Load Commercial Washer”

(Part No. W10251135), provides the Commercial Laundry Service Professional with

information on the installation, operation, and service of the Coin and non coin “Next

Generation Top Load Commercial Washer”. For specic information on the model

being serviced, refer to the “Installation Instructions,” or “Tech Sheet” provided with

the washer. The Wiring Diagrams used in this Service Manual are typical and should

be used for training purposes only. Always use the Wiring Diagram supplied with the

product when servicing the unit. Some procedures may differ between models. Any

differences will be specied as MN or CS model specic.

GOALS AND OBJECTIVES

The goal of this Service Manual is to provide information that will enable the

Commercial Laundry Service Professional to properly diagnose malfunctions and

repair the Next Generation Top Load Commercial Washer. The objectives of this

Service Manual are to:

Understand and follow proper safety messages.

Successfully troubleshoot and diagnose malfunctions.

Successfully perform necessary repairs.

Successfully return the washer to its proper operational status.

•

iii

TABLE OF CONTENTS

GENERAL ................................................................................................................................. 1-1

View entire service video .................................................................................. 1-1

Model number designations .............................................................................................. 1-2

Model and serial number label location ............................................................................ 1-3

Maytag commercial laundry literature list ......................................................................... 1-4

INSTALLATION REQUIREMENTS ...........................................................................................

2-1

Tools and parts ................................................................................................................. 2-1

Location requirements ...................................................................................................... 2-2

Recessed area and closet installation .............................................................................. 2-3

Product dimensions .......................................................................................................... 2-3

Standpipe drain system .................................................................................................... 2-3

Electrical requirements ..................................................................................................... 2-4

Recommended ground method ........................................................................................ 2-4

BASIC OPERATION OF COMMERCIAL WASHER .................................................................

3-1

General user information .................................................................................................. 3-1

Control set-up procedures ................................................................................................ 3-2

How to use the key pads to program the controls ........................................................... 3-2

Start operating set-up ....................................................................................................... 3-2

Set-up codes ..................................................................................................................... 3-3

COMPONENT ACCESS ...........................................................................................................

4-1

Remove the control panel assembly ................................................................................. 4-1

Remove the control panel assembly - MN model ............................................................. 4-1

Power source plug - MN model ........................................................................................ 4-2

Export model rinse level wire harness option - MN and CS models ................................. 4-2

Remove timer knob - MN model ....................................................................................... 4-3

Remove escutcheon - MN model ..................................................................................... 4-3

Remove the timer - MN model .......................................................................................... 4-4

Remove the controls - MN model ..................................................................................... 4-4

Replace control panel - MN model ................................................................................... 4-5

Remove the processor control board ................................................................................ 4-6

Remove escutcheon ......................................................................................................... 4-7

Remove display lens ......................................................................................................... 4-7

Remove the relays ............................................................................................................ 4-8

Remove ground wire ......................................................................................................... 4-8

Remove the user interface ................................................................................................ 4-9

Remove the water level pressure switch .......................................................................... 4-10

Remove low voltage transformer ...................................................................................... 4-11

Remove the power cord .................................................................................................... 4-12

Remove the control cover assembly ................................................................................. 4-13

Remove the metercase ..................................................................................................... 4-14

Remove the cabinet front .................................................................................................. 4-16

Remove entire cabinet ...................................................................................................... 4-17

Splash guard and retainer - MN model ............................................................................. 4-20

Page

iv

Remove the vacuum break - MN model ........................................................................... 4-21

Remove the inlet hose - MN model .................................................................................. 4-22

Remove the agitator ......................................................................................................... 4-23

Remove the tub ring ......................................................................................................... 4-24

Remove the balance ring .................................................................................................. 4-25

Remove the balance ring - MN model .............................................................................. 4-26

Remove the basket ........................................................................................................... 4-27

Remove the tub ................................................................................................................ 4-28

Remove the tub seal ......................................................................................................... 4-30

Remove motor splash guard ............................................................................................. 4-30

Remove the pump ............................................................................................................ 4-31

Remove the basket drive .................................................................................................. 4-32

Remove the tub support ................................................................................................... 4-33

Triangular base assembly ................................................................................................. 4-34

Remove tub support spring and bracket ........................................................................... 4-36

Remove drain hose, bracket and cup ............................................................................... 4-37

Remove feature panel ...................................................................................................... 4-38

Rear support leveling system ........................................................................................... 4-39

ADDITIONAL COMPONENT ACCESS ....................................................................................

4-40

Remove the coin drop ....................................................................................................... 4-40

Remove the coin slide - CS model ................................................................................... 4-41

Remove the timer - CS model .......................................................................................... 4-42

Remove coin funnel - CS model ....................................................................................... 4-43

Remove lid switch ............................................................................................................. 4-44

Remove inlet valve ........................................................................................................... 4-46

Remove the lid .................................................................................................................. 4-47

Remove the pump ............................................................................................................ 4-48

Parts of the motor ............................................................................................................. 4-49

Remove the motor ............................................................................................................ 4-50

Remove the transmission ................................................................................................. 4-52

Replacement transmission ............................................................................................... 4-53

Remove clutch assembly and parts .................................................................................. 4-54

Remove the brake assembly ............................................................................................ 4-56

Remove drive cam ............................................................................................................ 4-57

COMPONENT TESTING ...........................................................................................................

5-1

Motor thermal protector switch ......................................................................................... 5-1

Dual water inlet valve ........................................................................................................ 5-1

Motor ................................................................................................................................. 5-2

Hidden lid switch ............................................................................................................... 5-3

Motor start capacitor ......................................................................................................... 5-3

Basket drive shaft checks ................................................................................................. 5-4

TABLE OF CONTENTS - CONTINUED

Page

v

TABLE OF CONTENTS - CONTINUED

Page

DIAGNOSIS & TROUBLESHOOTING .....................................................................................

6-1

Diagnostic codes .............................................................................................................. 6-1

Top Load washer diagnostic mode ................................................................................... 6-2

Top Load washer help mode ............................................................................................. 6-3

Mechanical coin slide model timer sequence chart .......................................................... 6-4

Mechanical non-pay model timer sequence chart ............................................................ 6-5

WIRING DIAGRAMS .................................................................................................................

7-1

Mechanical coin slide models ........................................................................................... 7-1

Mechanical non-pay models ............................................................................................. 7-2

Electronic control models .................................................................................................. 7-3

INTERACTIVE SERVICE MANUAL INSTRUCTIONS

Click your mouse on any topic in the table of contents to go directly to that section.

Click your mouse on any link that says (See page ?-?) to go directly to the page referenced.

This symbol means a video clip is available. Click your mouse on the camera icon

to view the video. To close the movie, click the X box at the top corner of the video window.

vi

---- NOTES ----

1-1

GENERAL

VIEW ENTIRE SERVICE VIDEO

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 nished, 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 nger 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.

WASHER SAFETY

1-2

MODEL NUMBER M AT 14 PD A W W 0

BRAND

M Maytag

PRODUCT GROUP

AT Automatic Vertical

AH Automatic Horizontal

DE Dryer - Electric

DG Dryer - Gas

LE Laundry Stack - Electric

LG Laundry Stack = Gas

# STATUS DESCRIPTION

12 OLD Top Load Regular

13 OLD Top Load Deep

14 NEW 2.5 VA Washer

15 NEW 3.2 VA Washer

16 OLD 27” square dryer

17 NEW 27” Top Load Match Dryer

22 NEW 27” Front Load Match Dryer

23 OLD Stacked Dryer/Dryer

24 NEW 27” Stack Dryer/Dryer

CONTROL TYPE

CS Mechanical - coin slide ready

MN Mechanical - non-coin

PD Processor - with coin drop

PN Processor - non pay

PR Processor - debit reader ready

Marketing Code

A First in series (like a digit change)

Voltage Code

W 120V-60Hz (US)

X 120V-60Hz (Canada)

Y 240V-60Hz (US)

Z 240V-60Hz (Canada)

G 220-240V-50Hz (Generic Europe)

Color

W White

Digit Change

0 Series change 0-9, A,B, etc

MODEL NUMBER DESIGNATIONS

1-3

MODEL AND SERIAL NUMBER LABEL LOCATION

Model & Serial

Number Label

1-4

MAYTAG COMMERCIAL LAUNDRY LITERATURE LIST

NEXT GENERATION TOP LOAD PRODUCT

PRODUCT

TYPE

MODEL Install Instruct

Tech Sheet or Wiring

Diagram

Service Parts

List

Card Reader

Instructs

Washer

MAT14PDAWW0

W10135312 W10135297 W10135284 N/A

Washer

MAT14PRAWW0

W10135311 W10135297 W10135285 W10135291

Washer

MAT14PDAXW0

W10135312 W10135297 W10135288 N/A

Washer

MAT14CSAWW0

W10135312 W10177489 - WD W10135286 N/A

Washer

MAT15MNAWW0

W10135311

W10177677 - WD

W10135287 N/A

Maytag Commercial Laundry Literature List

Next Generation Dependable Care Product

2-1

INSTALLATION REQUIREMENTS

For complete installation instructions

choose one of the links below.

TOOLS AND PARTS

Parts supplied:

Remove parts bag from washer. Check that all

parts were included.

2 inlet hoses

4 flat water hose washers

2 front-leveling legs with locking nuts

1 drain hose

1 hose clamp

1 service access door locking cam

PR units only: 1 Bezel Kit includes Bezel,

Harness wire.

CS units only: 1 coin slide extension and 2

mounting screws.

NOTE: Coin slide security bolt not supplied.

•

Gather the required tools and parts before

starting installation. Read and follow the

instructions provided with any tools listed

here.

Tools needed:

Level

Utility knife

Scissors

8” or 10” adjustable wrench

Flat-blade screwdriver

Pliers

Bucket

•

Installation Instructions

Commercial Non-Coin

Top Load Washer

Installation Instructions

Commercial Coin

Top Load Washer

2-2

LOCATION REQUIREMENTS

IMPORTANT: Do not install or store the wash-

er where it will be exposed to the weather. Do

not store or operate the washer in tempera-

tures at or below 32°F (0°C). Some water can

remain in the washer and can cause damage

in low temperatures.

Proper installation is your responsibility.

You will need:

A water heater set to deliver 120°F (49°C)

water to the washer.

A grounded electrical outlet located within

4 ft (1.2 m) of where the power cord is

attached to the back of the washer.

See “Electrical Requirements.”

Hot and cold water faucets located within

4 ft (1.2 m) of the back of the washer,

and provide water pressure of 10-100 psi

(69-690 kPa). A pressure reduction valve

should be used in the supply line where

inlet pressure entering the building exceeds

100 psi (690 kPa) to prevent damage to the

washer mixing valve.

A level floor with a maximum slope of 1”

(2.5 cm) under entire washer.

•

A sturdy floor to support the washer weight

(washer, water and load) of 315 lbs (143

kgs).

A 12” (30 cm) minimum riser to provide an

air cushion and prevent noise and damage

to valves for a single washer installation.

A floor drain should be provided under the

bulkhead. Prefabricated bulkheads with

electrical outlets, water supply lines and

drain facilities should be used only where

local codes permit.

•

RECESSED AREA AND

CLOSET INSTALLATION

This washer may be installed in a recessed

area or closet. The installation spacing is

in inches and is the minimum allowable.

Additional spacing should be considered for

ease of installation, servicing, and compliance

with local codes and ordinances. If closet

door is installed, the minimum unobstructed

air openings in the top and bottom are

required. Louvered doors with equivalent air

openings are acceptable.

Electrical Shock Hazard

Plug into a grounded 3 prong outlet.

Do not remove ground prong.

Do not use an adapter.

Do not use an extension cord.

Failure to follow these instructions can

result in death, fire, or electrical shock.

2-3

PRODUCT DIMENSIONS

Openings shown are the minimum for closet

doors.

Louvered doors with equivalent air openings

are acceptable.

Additional spacing should be considered for

the ease of installation and servicing.

Additional clearances may be required for

wall, door and floor moldings.

Additional spacing of 1” (2.5 cm) on all sides

of the washer is recommended to reduce

noise transfer.

Companion spacing should also be

considered.

•

The standpipe drain requires a minimum

diameter standpipe of 2” (5 cm). The minimum

carry-away capacity can be no less than 17

gal. (64 L) per minute.

The top of the standpipe must be at least 39”

(99 cm) high and no higher than 72” (183 cm)

from the bottom of the washer.

STANDPIPE DRAIN SYSTEM

Recessed front view Closet side view

closet

door

Front view

3" (7.6 cm)

24"

2

(155 cm

2

)*

48"

2

(310 cm

2

)*

24"

2

(155 cm

2

)*

48"

2

(310 cm

2

)*

0"

(0 cm)

0"

(0 cm)

closet door

17"

(43.2 cm)

14"

(35.6 cm)

max.

4"

(10.2 cm)

min.

1" (2.5 cm)

min.

A

. 43" (109 cm)

B. 38 " (97 cm)

C. 35" (89 cm)

D. 1 " (3.8 cm)

E. 27 " (70.5 cm)

F. 25 " (65 cm)

G. Water inlets

H. 7" (18 cm)

I. Power supply cord

J. Drain hose connector

K. Label

L. 27" (68.5 cm)

M. 5 " (13.3 cm)

N. 1" (2.5 cm)

O. Water level switch and shaft

P. 5" (12.7 cm)



⁄

1

⁄

1

⁄

8



⁄



⁄

N

froid

chaud

A

B

C

E

D

F

G

I

J

O

H

P

K

L

M

H

Door opening cutouts

2-4

IMPORTANT: The washer must be electrically

grounded in accordance with local codes and

ordinances or, in the absence of local codes,

with the National Electrical Code, ANSI/NFPA

70, latest edition.

If codes permit and a separate ground wire

is used, it is recommended that a qualified

electrical installer determine that the ground

path is adequate.

Do not ground to a gas pipe.

Do not have a fuse in the neutral or ground

circuit. A copy of the above code standards

can be obtained from: National Fire

Protection Association, One Batterymarch

Park, Quincy, MA 02269

A 120 volt, 60 Hz, AC only, 15- or 20-

amp, fused electrical circuit is required.

A time-delay fuse or circuit breaker is

recommended. It is recommended that a

separate circuit serving only this washer be

provided.

The washer is equipped with a power

supply cord having a 3 prong grounding

plug.

To minimize possible shock hazard, the

cord must be plugged into a mating, 3

•

ELECTRICAL

REQUIREMENTS

prong, grounded-type outlet, grounded

in accordance with local codes and

ordinances. If a mating outlet is not

available, it is the personal responsibility

and obligation of the customer to have the

properly grounded outlet installed by a

qualified electrician.

The washer, when installed, must be

electrically grounded in accordance with local

codes, or in the absence of local codes, with

the National Electrical Code, ANSI/NFPA

70, latest edition, and all local codes and

ordinances.

RECOMMENDED

GROUND METHOD

GROUNDING INSTRUCTIONS

For a grounded, cord-connected washer:

This washer must be grounded. In the event

of a malfunction or breakdown, grounding

will reduce the risk of electrical shock by

providing a path of least resistance for

electric current This washer is equipped

with a cord having and equipment-grounding

conductor and a grounding plug. The plug

must be plugged into an appropriate outlet

that is properly installed and grounded

in accordance with all local codes and

ordinances.

WARNING: Improper connection of the

equipment grounding conductor can result

in a risk of electric shock. Check with a

qualied electrician or serviceman if you

are in doubt as to whether the appliance is

properly grounded. Do not modify the plug

provided with the appliance – if it will not t

the outlet, have a proper outlet installed by a

qualied electrician.

For a permanently connected washer:

This washer must be connected to a

grounded metal, permanent wiring system,

or and equipment grounding conductor

must be run with the circuit conductors and

connected to the equipment-grounding

terminal or lead on the appliance.

Electrical Shock Hazard

Plug into a grounded 3 prong outlet.

Do not remove ground prong.

Do not use an adapter.

Do not use an extension cord.

Failure to follow these instructions can

result in death, fire, or electrical shock.

3-1

BASIC OPERATION OF COMMERCIAL WASHER

GENERAL USER

INFORMATION

For additional information, see www.MaytagCommercialLaundry.com

This tech sheet is not valid for models prior to series MAT14.

Blank display: This condition indicates the

appliance is inoperative. Enter set-up mode

to view diagnostic code. Ensure there is

power to the unit and the control.

‘0 Minutes’ showing in display: This

condition indicates the appliance 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 lid. If the lid switch fails, it must be

replaced before normal operation can be

restored.

Cold start (initial first use): Appliance is

programmed at the factory as follows:

11 minute wash period

1 rinse with 2 minutes of rinse agitation

$1.75 wash price (PD models)

$0.00 wash price (PR models)

1.

2.

3.

•

4. Warm Start (after power failure): After a

delay of up to 8 seconds, the appliance is

restored to the state that existed at time of

the power failure.

5. Pricing: After the lid is opened following

the completion of a cycle, the display

indicates the cycle price (unless set for free

operation). As coins are dropped or debit

inputs arrive, the display will change to lead

the user through the initiation of a cycle.

6. Free Cycles: This is established by setting

the cycle price to zero. When this happens

‘SELECT CYCLE’ will appear rather than a

cycle price.

7. Debit Card Ready: This appliance is debit

card ‘cable’ 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

set-up. In models converted to a Generation

1 debit card system, debit pulses represent

the equivalent of one Coin (coin 1).

8. Display: After the unit has been installed

and plugged in, the display will show ‘0

MINUTES’. Once the unit has been plugged

in and the washer lid opened the display

will show the price. In washers set for

free cycles the display will flash ‘SELECT

CYCLE’.

Electrical Shock Hazard

Disconnect power before servicing.

Replace all parts and panels before

operating.

Failure to do so can result in death or

electrical shock.

3-2

CONTROL SET-UP

PROCEDURES

IMPORTANT: Read all instructions before

operating.

The lower fabric setting key pads and

the digital display are used to set up the

controls. The display can contain 4 numbers

and/or letters and a decimal point. These

are used to indicate the set-up codes and

related code values available for use in

programming the appliance.

1.

2.

HOW TO USE THE KEY

PADS TO PROGRAM

THE CONTROLS

The LOWER LEFT key pad is used to

adjust the values associated with set-up

codes. Pressing the key pad will increment

the value. Rapid adjustment is possible by

holding the key pad down.

The LOWER MIDDLE key pad will advance

you through the set-up codes. Pressing

the key pad will advance you to the next

available set-up code. Holding the key pad

down will automatically advance through

the set-up codes at a rate of one (1) per

second.

The LOWER RIGHT key pad is used to

1.

2.

3.

PD models: Insert access door key, turn,

and lift to remove access door.

PR models: Once the debit card reader

is installed (according to the reader

manufacturer’s instructions), the set-

up mode can be entered by inserting a

manual set-up card (supplied by the reader

manufacturer) into the card slot. If a manual

set-up card is not available, manual set-

up mode can be entered by removing

connector AA1 on the circuit board.

1.

2.

START OPERATING SET-UP

Electrical Shock Hazard

Disconnect power before servicing.

Replace all parts and panels before

operating.

Failure to do so can result in death or

electrical shock.

Installation Instructions for

Card Reader Conversion

3-3

SET-UP CODES

The LOWER MIDDLE key pad will advance

you from code to code.

The LOWER LEFT key pad will change the

code value.

The LOWER RIGHT key pad will select or

deselect options.

FOR PR MODELS: The set-up codes are

the same as for the ‘PD’ models except

where noted. 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.

1.

2.

3.

4.

Refer to the tech sheet for a list of the set-up

codes by clicking on the link below.

IMPORTANT: The console must not be

opened unless power is first removed from

the washer. To access connector AA1:

Unplug washer or disconnect power.

Open console.

Disconnect plug on AA1,

Close console.

Plug in washer or reconnect power.

The washer is now in the set-up mode.

Before proceeding, it is worth noting that,

despite all of the options available, an

owner can simply choose to uncrate a

new commercial washer, hook it up, plug

it in and have a unit which operates.

3.

•

MAT14PD-PR-PN Tech Sheet

3-4

---- NOTES ----

4-1

Remove the two top T-20 security screws

on the control panel.

To avoid damage, lay a towel on the washer

top and place the control panel on the towel.

1.

2.

Remove the two top T-20 security screws

on the control panel.

1.

COMPONENT ACCESS

REMOVE THE CONTROL

PANEL ASSEMBLY

T-20

Screws

To avoid damage, lay a towel on the washer

top and place the control panel on the towel.

2.

Electrical Shock Hazard

Disconnect power before servicing.

Replace all parts and panels before

operating.

Failure to do so can result in death or

electrical shock.

T-20

Screws

REMOVE THE CONTROL

PANEL ASSEMBLY

- MN MODEL

Electrical Shock Hazard

Disconnect power before servicing.

Replace all parts and panels before

operating.

Failure to do so can result in death or

electrical shock.

4-2

Remove the control panel (see page 4-1)

The violet wire with a white tracer has a

blank plug with no wire connected to it. This

wire is used for export models only.

To raise the water level in the rinse cycle

remove the blank plug from the connector.

Disconnect the violet wire with the yel-

low stripe that connects to the pink wire.

Attach the violet wire with the

white stripe to the pink wire.

Place the blank plug onto the vio-

let wire with the yellow stripe.

1.

2.

3.

•

Remove the control panel (see page 4-1)

The two-wire connector in the console that

has a blank locking plug on it can be used

as a power source for a controlling device or

a monitoring device.

1.

2.

POWER SOURCE

PLUG - MN MODEL

Electrical Shock Hazard

Disconnect power before servicing.

Replace all parts and panels before

operating.

Failure to do so can result in death or

electrical shock.

EXPORT MODEL

RINSE LEVEL WIRE

HARNESS OPTION -

MN AND CS MODELS

Power

Source

Plug

Electrical Shock Hazard

Disconnect power before servicing.

Replace all parts and panels before

operating.

Failure to do so can result in death or

electrical shock.

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