Maytag MDE-MDG21PRA, MLE-MLG23PRF, MDE-MDG21PNA, MDE-MDG21PDA, MLE-MLG23PRA User Manual

...

Page 1

This manual is to be used by qualified appliance technicians only. Maytag does not assume any responsibility for property damage or personal injury for improper service procedures done by an unqualified person.

Commercial Single and Stack Dryers

This Base Manual covers general information

Refer to individual Technical Sheet

for information on specific models

This manual includes, but is

not limited to the following:

MDE/MDG21PDA MDE/MDG21PDD MDE/MDG21PNA MDE/MDG21PND MDE/MDG21PRA MLE/MLG23PDA MLE/MLG23PDC MLE/MLG23PRA MLE/MLG23PDF MLE/MLG23PRF MLE/MLG23MNA MLE/MLG23MNF

16022904

Revision 0

January 2004

Page 2

Important Information

Important Notices for Servicers and Consumers

Maytag will not be responsible for personal injury or property damage from improper service procedures. Pride and workmanship go into every product to provide our customers with quality products. It is possible, however, that during its lifetime a product may require service. Products should be serviced only by a qualified service technician who is familiar with the safety procedures required in the repair and who is equipped with the proper tools, parts, testing instruments and the appropriate service information. IT IS THE TECHNICIANS RESPONSIBLITY TO REVIEW ALL

APPROPRIATE SERVICE INFORMATION BEFORE BEGINNING REPAIRS.

To avoid risk of severe personal injury or death, disconnect power before working/servicing on appliance to avoid electrical shock.

To locate an authorized servicer, please consult your telephone book or the distributor from whom you purchased this product. For further assistance:

Contact your local commercial product distributor or visit Web site www.maytagcommerciallaundry.com.

Recognize Safety Symbols, Words, and Labels

DANGER

DANGER—Immediate hazards which WILL result in severe personal injury or death.

WARNING

WARNING—Hazards or unsafe practices which COULD result in severe personal injury or death.

WARNING

CAUTION

CAUTION—Hazards or unsafe practices which COULD result in minor personal injury, product or property

damage.

Page 3

Table of Contents

Important Information ...................................................... 2

Important Safety Information ........................................... 4

General Information

Model Identification ..................................................... 7

Commercial Dryer Nomenclature ............................... 7

Terminology/Definitions ............................................... 8

How It Works .................................................................. 9

Gas Valve Assembly ................................................... 9

Test Equipment ............................................................ 12

Troubleshooting Procedures ......................................... 13

General Specifications ............................................... 13

Wattage Specifications ............................................. 13

Exhaust Ducts .......................................................... 13

Electrical Troubleshooting ......................................... 14

Drive Motor Check .................................................. 14

Motor Test Cord ..................................................... 15

Drive Motor Test ..................................................... 15

Centrifugal Switch ..................................................... 15

Air Shutter Adjustment .............................................. 15

Manometer ................................................................ 16

Mechanical Troubleshooting ...................................... 17

Single Dryer Troubleshooting Guide .......................... 18

Single Dryer Diagnostic Program ........................... 26

Single Dryer Diagnostic Code ................................ 27

Stack Dryer Troubleshooting Guide ........................... 29

Stack Dryer Diagnostic Program ............................ 34

Stack Dryer Diagnostic Code ................................. 35

Disassembly Procedures

Control Panel ............................................................ 37

Microprocessor Board ............................................... 37

Touch Pad Assembly ................................................ 37

Transformer ............................................................... 37

Meter Case ............................................................... 37

Service Door Switch .................................................. 38

Coin Vault Switch ...................................................... 38

Coin Drop Acceptor ................................................... 38

Coin Sensor .............................................................. 38

Door Assembly .......................................................... 38

Reversing Door Assembly ...................................... 39

Door Disassembly.................................................. 39

Front Panel ............................................................... 39

Top Cover .................................................................. 40

Door Switch............................................................... 40

Front Shroud Assembly Removal .............................. 41

Outlet Duct, Shroud & Tumbler Front .................... 41

Lint Filter ................................................................ 42

Bearing & Pads ...................................................... 42

Front Seal .............................................................. 42

Belt ............................................................................ 42

Baffles ....................................................................... 43

Rear Shroud Assembly ............................................. 43

Back Seal .............................................................. 44

Roller & Bearing Assembly .................................... 44

Thermostats .............................................................. 45

Cycling Thermostat ................................................ 45

Low-Cycling Thermostat ......................................... 45

Thermal Fuse ......................................................... 45

Hi-Limit Thermostat ................................................ 45

Blower Assembly ...................................................... 45

Blower Seal ............................................................ 45

Blower Cover .......................................................... 45

Blower .................................................................... 46

Exhaust Duct Pipe ................................................. 47

Drive Motor Assembly ............................................... 47

Assembly Breakdown ............................................... 47

Motor Switch .......................................................... 47

Idler Arm Assembly ................................................ 47

Gas Valve Assembly ................................................. 48

Coil ......................................................................... 48

Igniter ..................................................................... 48

Gas Valve ............................................................... 49

Combustion Cone .................................................. 49

Inlet Duct ................................................................... 49

Heater Enclosure ...................................................... 49

Stack Dryer-Sloped Front .......................................... 50

Service Panel & Switch ............................................. 50

Access Cover ......................................................... 50

Control Panel ......................................................... 50

Microprocessor ...................................................... 51

Coin Drop ............................................................... 51

Front Panel ............................................................ 52

Stack Dryer--Sloped Front (PR Model) ...................... 53

Microprocessor ...................................................... 53

Stack Dryer - MN Models .......................................... 53

Front Panel ............................................................ 53

Timer ...................................................................... 54

Selector Switch ...................................................... 54

Push-To-Start Switch ............................................. 54

Machine-In-Use Light ............................................. 54

Stack Dryer - Flat Front Models ................................ 55

Front Panel ............................................................ 55

Microprocessor ...................................................... 55

Front Shroud Assembly ......................................... 55

Motor & Heater Relays .......................................... 56

Appendix A ............................................................... 57

Programming ............................................................. 58

Start Operating Set-up ........................................... 58

General User Information ....................................... 58

Set-Up codes ......................................................... 60

Dryer Diagnostic Mode .......................................... 66

Dryer Help Mode .................................................... 66

Page 4

Important Safety Information

WARNING

To reduce the risk of fire, electric shock, serious injury or death to persons when using your washer, follow these basic precautions:

• Read all instructions before using the dryer.

• Refer to the Grounding Instructions in the Installation Manual for the proper grounding of the washer.

• Do not dry articles that have been previously cleaned in, washed in, soaked in, or spotted with gasoline, dry-cleaning solvents, or other flammable or explosive substances as they give off vapors that could ignite or explode.

• Do not add gasoline, dry-cleaning solvents, or other flammable or explosive substances to the dryer. These substances give off vapors that could ignite or explode.

• Do not allow children to play on or in the dryer. Close supervision of children is necessary when the dryer is used near children. This is a safety rule for all appliances.

• Before the dryer is removed from service or discarded, remove the door to the drying compartment.

• Do not reach into the dryer if the drying tumbler is moving.

• Do not install or store the dryer where it will be exposed to water and/or weather.

• Do not tamper with the controls.

• Do not repair or replace any part of the dryer, or attempt any servicing unless specifically recommended in the User-Maintenance instructions or in published user-repair instructions that you understand and have the skills to carry out.

• To reduce the risk of an electric shock or fire, do not use an extension cord or an adapter to connect the dryer to the electrical power source.

• Use your dryer only for its intended purpose, drying clothes.

• Always disconnect the dryer from electrical supply before attempting any service. Disconnect the power cord by grasping the plug, not the cord.

• Install the dryer according to the Installation Instructions. All connections for venting, electrical power and grounding must comply with local codes and be made by licensed personnel when required. Do not do it yourself unless you know how!

• To reduce the risk of fire, clothes which have traces of any flammable substances such as vegetable oil, cooking oil, machine oil, flammable chemicals, thinner, etc. or anything containing wax or chemicals such as in mops and cleaning cloths, must not be put into the dryer. These flammable substances may cause the fabric to catch on fire by itself.

• Do not use fabric softeners or products to eliminate static unless recommended by the manufacturer of the fabric softener or product.

• Keep your dryer in good condition. Bumping or dropping the dryer can damage safety features. If this occurs, have your dryer checked by a qualified service person.

• Replace worn power cords and/or loose plugs.

• Be sure water connections have a shut-off valve and that fill hose connections are tight. Close the shut-off valves at the end of each wash day.

• Loading door must be closed any time the dryer is in operational fill, tumble, or spin. Do not attempt to bypass the loading door switch by permitting the dryer to operate with the loading door open.

• Always read and follow manufacturer’s instructions on packages of laundry and cleaning aids. Heed all warnings or precautions. To reduce the risk of poisoning or chemical burns, keep them out of the reach of children at all times (preferably in a locked cabinet).

• Always follow the fabric care instructions supplied by the garment manufacturer.

• Never operate the dryer with any guards and/or panels removed.

• Do not operate the dryer with missing or broken parts.

• Do not bypass any safety devices.

• Failure to install, maintain, and/or operate this dryer according to the manufacturer’s instructions may result in conditions which can produce bodily injury and/or property damage.

NOTE: The Warnings and Important Safety Instructions

appearing in this manual are not meant to cover all possible conditions and situations that may occur. Common sense, caution and care must be exercised when installing, maintaining, or operating the dryer.

Always contact your dealer, distributor, service agent or the manufacturer about any problems or conditions you do not understand.

Page 5

Important Safety Information

WARNING

To avoid personal injury or death from improper servicing, make sure you read and understand the descriptions and meaning of various safety symbols, words and labels used in this manual, before attempting any procedures described in the manual. Failure to understand and comply with safety information may result in severe personal injury or death.

General Information

This Service Manual describes the operation, troubleshooting, disassembly, and repair of Maytag dryer. It is intended for use by authorized technicians who troubleshoot and repair these units.

NOTE: It is assumed that users of this manual are

familiar with the use of tools and equipment used to troubleshoot and repair electrical, and mechanical systems; and understand the terminology used to describe and discuss them.

About Ground Wires

In the event of an electrical short circuit, a ground wire reduces the risk of electric shock by providing an escape wire for the electric current. Standard accepted color coding for ground wires is green or green with a yellow stripe. Grounding wires and wires colored like grounding wires are NOT to be used as current carrying conductors.

WARNING

To reduce the risk of fire, electric shock, serious injury or death, all wiring and grounding must conform with the latest edition of the National Electric Code, ANSI/ NFPA 70, or the Canadian Electrical Code, CSA C22.1, and such local regulations as might apply. It is the customer’s responsibility to have the wiring and fuses checked by a qualified electrician to make sure your home has adequate electrical power to operate the dryer.

WARNING

Related Publications

This is a base service manual, covering a range of similar models. It is intended to be used in conjunction with the Parts Manual and Technical Sheet covering the specific model being serviced.

Electrical Service Information

Proper Grounding and Polarization of 120 Volts Wall Outlets

For the safety of our customers and the Service Technician ALL appliances have a three–prong power cord and MUST be connected to a properly polarized AND grounded wall outlet. This information was written for those who do not understand grounding and polarization of a wall outlet. A 120 volt wall outlet must always be wired as shown below.

Ground

Neutral

V.A.C.

Neutral side

115±12

V.A.C.

To avoid risk of personal injury or death due to electrical shock:

• Observe all local codes and ordinances.

• Disconnect electrical power to unit before servicing.

• Ground appliance properly.

• Check with a qualified electrician if you are not sure this appliance is properly grounded.

• DO NOT ground to gas line.

• DO NOT ground to cold water pipe if pipe is interrupted by plastic, nonmetallic gaskets, or other insulating (nonconducting) materials.

• DO NOT modify plug on power cord. If plug does not fit electrical outlet, have proper outlet installed by qualified electrician.

• DO NOT have a fuse in the neutral or ground circuit. A fuse in the neutral or ground circuit could result in an electrical shock.

• DO NOT use an extension cord with this appliance.

• DO NOT use an adapter plug with this appliance.

• DO NOT pinch power cord.

Round grounding prong

115±12

V.A.C.

Page 6

Important Safety Information

Explanation Polarization–This means that the larger slot must be

neutral and the small slot must be at line voltage. Mispolarized–The outlet is incorrectly wired so that the larger slot is at line voltage and the smaller slot is neutral. Grounded–This means the round hole connection is connected to earth ground through a connection to the main power panel. Ungrounded–The round hole connection is not complete to earth ground and/or the main power panel.

Grounding Instructions

WARNING

• To avoid the risk of electrical shock or death, do not alter the plug.

• Do not remove grounding prong when installing grounded appliance in a home that does not have three wire grounding receptacle. Under no condition is grounding prong to be cut off or removed. It is the personal responsibility of the consumer to contact a qualified electrician and have properly grounded three prong wall receptacle installed in accordance with appropriate electrical codes.

• To avoid the risk of electrical shock or death, this equipment must be grounded.

This equipment MUST be grounded. In the event of an electrical short circuit, grounding reduces the risk of electric shock by providing an escape wire for the electric current. This unit is equipped with a cord having a grounding wire with a grounding plug. The plug must be plugged into an outlet that is properly installed and grounded.

Consult a qualified electrician or technician if grounding instructions are not completely understood, or if doubt exists as to whether the equipment is properly grounded. Do not use an extension cord. If the product power cord is too short, have a qualified electrician install a three-slot receptacle. This unit should be plugged into a separate 60 hertz circuit with the electrical rating as shown in the appropriate drawing. Models operate with a supply voltage of 120 Volts.

Page 7

General Information

Model Identification

Model and serial number is located on the back of the console and cabinet. It is important that you keep a record for future reference.

• For Maytag product call your distributor or visit the Web Site at www.maytagcommerciallaundry.com

When contacting provide product information located on rating plate. Record the following:

Model Number: ___________________

Serial or S/N Number: ___________________

Date of purchase: ___________________

Distributor name and address: ___________________

Commercial Dryer Nomenclature

M DE WWAPD21

Service

Keep a copy of sales receipt for future reference or in case warranty service is required. To locate an authorized distributor:

• For Maytag product call your distributor or visit the Web Site at www.maytagcommerciallaundry.com.

Service should be performed by qualified service technicians. We also recommend contacting an authorized distibutor, if service is required.

Parts and Accessories

Purchase replacement parts and accessories over the phone. To located an authorized distibutor:

• For Maytag product call your distributor or visit the Web Site at www.maytagcommerciallaundry.com.

Only factory approved replacement parts should be

used.

Brand

M - Commercial Maytag

Product Type

DE - Electric Dryer DG - Gas Dryer LE - Stack Electric Dryer LG - Stack Gas Dryer

21 - Single-Load Dryer 23 - Stack Dryer/Dryer

Model Number

Control Type

CS - Mechanical coin slide ready MN - Mechanical non-coin PD - Microprocessor with coin drop PN - Microprocessor non-coin PR - Microprocessor debit reader ready PS - Microprocessor coin slide ready

Color Code

W - White Q - Bisque

Voltage Code

W - 120V 60Hz X - 120V 60Hz (Canada) Y - 240V 60Hz Z - 240 60Hz

Marketing Code

This identifies which version of production the unit is

Page 8

General Information

TERMINOLOGY/DEFINITIONS

TERM DEFINITIONS

Amperage - The amount or the rate of flow of electrical current. Booster Coil - A coil used to assist the holding coil to raise the plunger in the gas valve allowing gas to

flow into the second chamber of the valve. BTU - British Thermal Unit is the quantity of heat required to raise the temperature of one pound of

water 1o F.

Centrifugal - A switch device in a motor used to change the path of electricity from both start and run

winding to run winding only. It also completes the circuit to the heat source when motor reaches speed.

CFM - Air movement measured in cubic feet per minute. ClothesLifters - Devices attached to the inside of the tumbler used to lift and tumble the clothes during

operation of the dryer.

Coin Drop - A device which accepts and registers the number and denomination of coins used to start the dryer. Duct - A construction of aluminum or galvanized steel pipe used to convey moisture laden air from

the dryer to the outside.

Evaporation - The process of expelling moisture from garments by heat and/or air movement. Exhaust Hood - A damper placed at the terminating end of the ducting which prevents air from entering the

duct when the dryer is not running.

Glide Strip - A stationary bearing surface at the front on which the dryer tumbler turns. Holding Coil - A coil used to open the first valve in the gas valve assembly. It holds the valve open after

the initial assistance from the booster coil.

Igniter - A silicon carbide igniter located on the burner bracket near the main orifice. It can reach a

temperature of 2200 valve orifice).

Light Emitting - A solid state indicator unit found as a single light and in a display Diode arrangement to form numbers and letters.

Manometer - An instrument for measuring the pressure of gas or air. Microprocessor- The "brains" of the control board. A solid state "count and switch" processor device. OHM - A unit of measurement of resistance (opposition to the flow of current). Parallel Circuit - A circuit in which there is more than one current path. Radiant Sensor- Thermostat-like device which reacts to the brightness or radiant energy output of a heat

source.

Sensor Relay - A coil operated switch used to control dryer motors, heating element or gas valve on

computer models.

Relay - A coil operated switch used to control dryer motors, heating element or gas valve on

Computer models.

Resistor - A device used to limit the flow of current or reduce voltage. Run Winding - The main electromagnetic winding in a motor. Series - A circuit in which there is only one current path through all components. Start Winding - (Phase winding) An auxiliary winding used in an A.C. motor to assist the main winding in

developing starting torque.

Thermostat - A bimetal switch which reacts to temperature changes. Tumbler - Cylinder which contains and tumbles clothes. Voltage- Electric pressure that forces the current to flow in a circuit. Wattage - Wattage is a unit of measurement of the capability of electricity to do work.

F. in 30 seconds to ignite the gas (when allowed to flow through gas

Page 9

General Information

HOW IT WORKS

The cycles are made up of three basic operations. White & Colors, Permanent Press and Delicates and Knits. These operation are sequenced by the controls (timer or microprocessor board) to provide a drying cycle for each of several different fabrics.

Incoming air is pulled over and around the exterior of the rotating tumbler. The air passing over the tumbler is preheated from the warm tumbler. This incoming air also passes over the inside of the cabinet lowering the cabinets temperature and minimizing the heat being dispelled into the laundry area.

The pre-conditioned air is pulled through the heat enclosure. As the air passes over the flame or heating element, it is heated causing the air to expand which increases its ability to absorb more moisture.

The heated air is pulled up the stack and through the grid in the tumbler back, through the tumbler, and to the lower area of the tumbler front. The tumbler is rotating in a clockwise direction lifting the garments to the top of the tumbler. The garments fall free of the clothes lifters through the air stream. As this tumbling takes place, the garments keep turning over within the tumbler. Moisture is evaporated from the garments tumbling in the warm, dry air.

After passing through the garments, the air will contain moisture and lint. This air is pulled from the tumbler through a fine mesh filter located in the bottom of the door opening. The quantity of lint collected on the filter is dependent upon the size and type of load being dried.

From the filter, the air is pulled into the exhaust blower and forced out the exhaust system. The high speed blower is capable of moving up to 220 CFM of air. The volume of the tumbling chamber is approximately 6.0 cubic feet.

Hi-limit Thermostat

Radiant Sensor

Igniter

Gas Valve

Holding & Booster Coil

Igniter - When the controls call for heat, line voltage is applied to the igniter. This causes the igniter to heat up and glow. It can reach a temperature of approximately 2200º F in approximately 30 seconds. Gas contacting the igniter at this temperature will ignite immediately.

Radiant Sensor - The radiant sensor operates much like a regular thermostat. It is mounted to the side of the combustion cone over an opening which exposes the sensor to the heat of the igniter and burner flame. In its normal condition, the contacts in the radiant sensor are closed and the circuit is completed to the igniter. The igniter glow causes the radiant sensor contacts to open, thus breaking the circuit to the igniter.

Gas Valve - The gas valve is actually two gas valves, one in series with the other. The first valve is opened by a solenoid which has two separate coils built into one solenoid. This solenoid uses what is termed a split coil. The coils are referred to as the Holding Coil and the Booster Coil.

Secondary Coil

Both coils are needed to lift the armature and open the valve. The holding coil is strong enough to keep the

GAS VALVE ASSEMBLY

The gas controls utilize a hot surface ignition system. The three major components of the gas ignition system are: Igniter, Radiant Sensor and Gas Valve.

valve open once the armature has been lifted.

The second of the two valves is operated by a one-coil solenoid. This is called a Secondary Coil.

Page 10

General Information

Secondary Coil

Function of Gas Valve System

The sensor, igniter and gas valve are interrelated and function as ignition and heat source. At the start of the cycle, the radiant sensor contacts are closed, the igniter is at room temperature and the gas valve is closed, blocking the flow of gas. NOTE: On the wiring diagram, the radiant sensor contacts are wired in parallel with the secondary coil. This bypasses current around the secondary coil when the radiant sensor contacts are closed. Valve 2 cannot open with the radiant sensor contacts closed.

Booster Coil

Holding Coil

Step 1: Operation: Dryer Controls calling for heat: The red wire in the gas valve harness is normally the "hot" side of the line. Voltage is routed to the gas valve assembly through the cycling thermostat located on the blower cover and the hi-limit thermostat on the heater cone. The black wire to the gas valve is normally the neutral side of the line and is completed through the motor centrifugal switch.

Radiant Sensor Contact Closed

The holding coil, booster coil and igniter all receive line

voltage Valve 2 is still closed, prohibiting gas flow to the burner. The igniter, operating at line voltage, begins to get very hot. (As the igniter gets hotter, the resistance of the igniter drops.) The igniter glow radiates heat to the radiant sensor.

The holding coil and booster coil open Valve 1.

The booster coil and the igniter are wired in parallel.

Note: While these two components are in parallel with

each other, they are wired in series with both the radiant sensor and secondary coil combination.

When the radiant sensor contacts are closed, full line voltage is available to the booster coil and to the igniter.

When the radiant sensor contacts open, current has to flow through the secondary coil on Valve 2 in order to get to the booster coil and igniter. A significant voltage drop develops across the secondary coil. While the parallel booster coil and igniter are still in the circuit, they become ineffective due to their low resistance and the resulting reduced voltage available to them.

Holding Coil

Radiant Sensor

To Motor

Valve 1 Valve 2

The secondary coil on Valve 2 is bypassed because the radiant sensor contacts are closed. By not allowing voltage to the secondary coil, the second valve cannot open and prevents gas flow to burner.

Step 2: Radiant Sensor Contact Open: The igniter is now hot and valve one (1) is open. The heat from the igniter causes the radiant sensor switch contacts to open.

With the radiant sensor contacts open, the secondary coil is no longer bypassed. The secondary coil is now in series with the parallel circuit combination of the booster coil and the igniter.

Booster Coil

Igniter

Page 11

General Information

Holding Coil

Radiant Sensor

To Motor

Valve 1 Valve 2

Because of the relatively low resistance of the hot igniter, most of the line voltage is dropped across the secondary coil. The remaining voltage is dropped across the booster coil and igniter.

Booster Coil

Igniter

Safety Features

The design of the system provides for fail-safe operation in the event of power interruption, ignition failure, or flame failure as described below.

Power Interruptions

If the power to the burner assembly is cut off, either by opening the dryer door or by a power line failure, both valves in the gas valve assembly will close. Gas flow will cease.

When power is restored to the valve, the radiant sensor will start the process again. However, if the radiant sensor has not cooled and the contacts are still open, the secondary coil will receive full voltage and OPEN with no gas flowing through the secondary valve.

Since the secondary coil is in series with the booster coil, the reduced current flow through the booster coil is insufficient to create a strong enough magnetic field to help open the first coil valve. When the radiant sensor cools and closes its contacts, the sensor will shut the secondary coil again, providing a full current flow to the igniter and the booster coil, and system will go through a normal ignition sequence.

The secondary coil now opens the second valve releasing gas across the still extremely hot igniter. The gas ignites immediately and the burner flame is established.

Note: Since the igniter will cool, the tip is positioned in

the burner flame which keeps it hot and resistance low.

The ignition cycle is now completed and the drying cycle begins.

Gas Conversions

The gas valve is set for use with natural gas when shipped from the factory. Because of differences in operating pressure and heat content of gases, the valve must be converted to use fuels other that natural gas.

Conversion kits are available to convert from natural to L.P. and back to natural. Check parts catalog for correct part number.

Ignition Failures

When the radiant sensor reacts to the heat from the igniter and the contacts open, the secondary coil energizes, opening the secondary valve. This allows gas to flow to the burner.

If no gas is present or the gas flow is not ignited, the radiant sensor will cool and the contacts will close, causing the secondary valve to close, thus allowing the igniter to reheat. The system will continue to cycle in this manner until normal ignition occurs or the dryer is turned OFF.

Flame Failure

If the burner flame should go out for any reason, the radiant sensor contacts will close in about 45 seconds and the gas system will go through a normal ignition sequence.

Page 12

General Information

20001001

20000002

20000081

20000029

038205

87654320123546781

WARNING

To avoid risk of electrical shock, personal injury or death from improper servicing, make sure you understand the proper procedures and usage of tools listed, before attempting any procedures described in the manual. Failure to understand and comply with safety information may result in severe personal injury or death.

TEST EQUIPMENT

The equipment required to service Maytag products depends largely upon the condition you encounter. Locating a malfunction will often require the use of electrical testing equipment such as:

DESCRIPTION PART NUMBER

Analog Test Meter 20000005

Digital Test Meter

Analog Test Meter

can be used to check for open or closed circuits, measure resistance, AC and DC volts, and temperature.

Digital Test Meter

can be used to check for open or closed circuits, measure resistance, AC and DC volts, and temperature.

Clamp-on Ammeter

AC Voltage Sensor

Air Test Meter

Water Column Manometer

Clamp-On Ammeter can be used to detect shorts. Overloads on the circuit breaker or fuse can be traced to either the dryer or circuit breaker by checking the dryer current draw.

AC Voltage Sensor

can be used to alert you if AC voltage is present so proper safety precautions can be observed. The tip of the sensor will glow bright red if voltage is between 110-600 volts AC.

Air Test Meter

can be used to check back pressure in the exhaust duct. Vent restriction can cause back pressure and disrupt normal operations of the dryer.

Water Column Manometer can be used to check gas pressure being supplied to the dryer and the outlet tap pressure on the gas valve.

Page 13

Troubleshooting Procedures

WARNING

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

General Specifications

Capacity 6.0 Cubic Feet One washer load is a full dryer load Motor Thermo-protected against overload auto-reset 1/4 HP, 120 Volt, 60 Hz Air Flow Cubic feet per minute exhausted from dryer 220 CFM Tumbler Revolution per minute 52 RPM Rotation Drum Turning, when viewed from the front Clockwise Heat Source • Electric • 240 volt, 5600 watts, 30 amp fuse

• Gas • Single port burner 24,000 BTU/hr. direct ignition, automatic shut-off

Exhaust Venting size 4"(10.2 cm) duct, rigid aluminum

duct work. (See installation instructions that are provided with the product for additional information.)

Makeup Air Free opening Requires 30 sq. in. per dryer pocket Static Pressure Single unit exhausting, 4" round rigid Should not exceed 0.92" or less

than 0 water column inches

Wattage Specifications

DESCRIPTION WATTS

Gas Dryer 350 Maximum without igniter

Electric 5900 (240V)/5600 208V)

Heating Element 5600 (240V)/5100 (208V)

Igniter

(NOTE: Ohm room temperature 180-400)

600

Exhaust Ducts

Page 14

Troubleshooting Procedures

WARNING

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

ELECTRICAL TROUBLESHOOTING

The malfunction of an electrical circuit cannot easily be diagnosed unless you first understand how it functions when operating normally. The electrical schematic and wiring diagram includes a cycle sequence chart keyed to the contacts in the timer, relay and/or control switches.

CAUTION

Resistance or continuity testing is done with the product disconnected from power. Failure to do so can result in damage to your meter.

For the most part, we will only be concerned with continuity. Is there a path or not? References are made between a “closed” (Continuity) reading and an “open (No continuity) reading. One note, when you get and “open” reading, try a higher resistance range (setting). A very high resistance appears as an “open” on the lower ranges. For best accuracy always “rezero” meter when changing ranges and/or the physical position of the meter.

Continuity testing, as related to an electrical component, is the check of a part for an “open” or closed” circuit.

Continuity test of load devices will show varying levels of resistance from very low for some transformer and motor windings to very high for some timer motors and components on control boards. Usually it is more important to know if there is a path for current flow through a device (continuity ) that to know the exact resistance (ohms) of the device.

Continuity tests of switches will show virtually no resistance across a closed contacts. Resistance, even low value indicate burned or dirty contacts in a switch.

When checking components or circuit paths for continuity, external wiring should be disconnected to eliminate false readings through external paths. Isolate what you want to test.

Drive Motor Check

The motor features a leadless motor connection, comprised of a quick connector wire harness which connects directly to the motor. The connector has two locking tabs securing the connector to the motor switch. Press on both locking tabs to release the connector from the motor switch.

Press Here to Release

Electrical components fall into two general categories.

1. Loads - Devices that use or consume electricity.

Examples would include drive motor, timer and solenoids coils.

2. Switches - Devices that control the supply of

electricity to the load or loads in a circuit. Examples include lid switches, timer contacts selector switch and relay contacts.

Connector

Motor Switch

With the wire harness connector removed, press inward on the brown actuator disc in the motor. The start and run winding can now be checked for proper ohms. Place the leads from an ohm meter on the proper terminals as listed in the following chart.

Using an ohm meter, you can also check the wiring harness for continuity from the timer to the motor.

Page 15

Troubleshooting Procedures

WARNING

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

Centrifugal Switch

Checking heater/gas valve and motor:

1. Disconnect the wire harness from the motor.

2. Place ohm meter leads to terminals 1 and 2.

3. With your thumbs, depress the BROWN disc located behind the motor switch on the motor shaft. The BROWN disc actuates the lever of the motor switch when the motor is at rest. At optimum motor speed, the disc moves away from the switch lever. When the disc is pressed in toward the windings, the actuator arm of the centrifugal switch will be relaxed. This allows the contacts to close, completing the heater circuit. If no continuity is found when the disc is depressed, change the centrifugal switch.

Motor Switch

Winding Terminal Terminal Ohms

Start 3 4 3.00

Run 5 4 2.25

Motor Test Cord

A motor test cord may be used to electrically check operation of the various electrical components without removing them from the unit. Testing in this manner determines whether or not the part will function independently of other electrical components. In order to make an accurate test, proper connection of the motor test cord is important.

Drive Motor Test

The motor may be checked in the dryer or removed and checked.

Two test leads are required to check operation of the drive motor. To check the motor for operation, hook the test cord to terminals 4 and 5.

Side View of Motor

Air Shutter Adjustment

The air shutter has been stamped "LP" and "N" (for Natural). Loosen the screw holding the shutter, rotate the shutter until the end of the slot (labeled for the gas to be used) contacts the screw. Tighten the screw to lock the shutter in place.

Gas Type

BTU Per Cu. Ft Pressure Switch Specific Gravity

Orifice Size

Natural

1050 2050

3.5

0.65

"Brown" Disc Switch Actuator

1.53

Page 16

Troubleshooting Procedures

WARNING

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

Manometers

Insufficient gas flow can cause problems. Therefore, checking the gas pressure at the time service calls are performed may prevent a return call.

Gas pressure can be checked with an instrument called a "manometer." This device can detect a "low" LP tank, restricted gas flow, bad gas valve, a malfunctioning pressure regulator, too many gas appliances operating off of a small supply line, or an improperly converted appliance from Natural to LP gas.

Other types of manometers exist; however, the type of manometer we will discuss in this manual is a "U" shaped tube in which water is added. Both ends are open so the water can equalize and seek its own level, which will be the same in both arms of the "U" shaped tube.

A flexible rubber hose is connected to the lower, open end of the manometer and to the gas source. Gas pressure is exerted on one of the water columns, pushing it down. The water level then rises in the other column. The difference in water levels equals the measure of gas pressure.

The water column (W.C.) for a Maytag dryer is 3.5" W.C. for Natural gas and 11" W.C. for LP.

How to Use:

1. Disconnect power supply to unit.

2. Remove front panel.

3. Shut off the gas to the dryer.

4. Install a 1/4" tapered fitting at the gas valve pressure tap. Use thread seal tape or compound on fitting.

5. Fill the manometer tube with water until each side equalizes at "0" water column.

6. Push the end of the manometer hose onto the 1/4" fitting located on the gas valve.

7. Connect hose to one end of the manometer.

8. Turn on the gas and reconnect dryer to power. Run the dryer in a heat cycle. Read the manometer with the burner ON, (check for gas leaks).

9. When the gas is on, the amount of water column present is equal to the total amount of deflection shown in the manometer.

Note: Once the test is completed, make sure the

tapered fitting is removed from the gas valve and the plug is repositioned into the gas valve and resealed with pipe seal. Check for gas leaks again with a soap or bubble solution. NEVER

USE OPEN FLAME TO CHECK FOR GAS LEAKS.

Note: IF HIGH WATER COLUMN PRESSURE IS

DETECTED; the gas flame can damage the

flame spreader on the burner. (this can be cuased by the wrong orfice, improper air mixture or high gas pressure. If pressure is as high as suspected, contact the local gas utilities company to check the outside regulator.)

Gas Valve

Orfice

Valve Pressure Tap

Page 17

Troubleshooting Procedures

WARNING

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

Mechanical Troubleshooting

Will Not Run

If dryer will not start or run, check the following:

• All wires are hooked up to their corresponding terminals.

• Dryer is plugged in.

• Blown fuse or circuit breaker.

• Door switch functional...door closed.

• Push-to-start switch functional.

• Timer functional...set in a cycle.

• Drive motor functional.

• Blown thermal fuse.

If drive motor runs, but the tumbler will not turn, check the following:

• Belt off or broken/damaged.

• Idler tension spring too weak or stretched.

• Idler pulley jammed or stuck.

If dryer runs a few minutes and then stops - motor overload protector opens, check the following:

• Lint buildup around drive motor.

• Low voltage present.

• Blower impeller blocked in blower housing.

• Drive motor - start switch contacts stuck closed.

If dryer blows fuses or trips circuit breaker, check the following:

Electric Models

• The amperage readings are at 240 volts. One line will be 24 amps and other line will be 21 amps. The neutral line will be at 4 amps. If the above amperages are present, then the house wiring, fuse box or circuit breaker should be suspected.

• Shorted heating element to housing.

• Incorrect wiring or a wire shorting to ground.

• Drive motor winding shorting to ground.

Gas Models

• During ignition, the dryer will draw 7 amps. With the burner ON, the dryer will draw 4.5 amps. If the dryer is drawing amperages below this, then the house wiring, fuse box or circuit breaker are suspected to be at fault.

• Igniter harness loose and shorted to base.

• Incorrect wiring or wire shorted to ground.

• Drive motor winding shorting to ground.

Will Not Shut-Off

On time dry settings, check the following:

• Timer motor receiving proper voltage.

• Check timer motor connections.

• Timer functional.

Will Not Dry

If dryer will not heat (motor runs), check the following:

• Restricted exhaust caused by plastic or thin foil flexible duct.

• Open heating element.

• Hi-Limit thermostat trips too soon or is open.

• Cycling thermostat trips too soon or is open.

• Temperature selector switch mis-wired or contacts open.

• Timer functional.

• Cycle selector switch mis-wired or contacts open.

• Drive motor centrifugal start switch not allowing voltage to gas valve or heating element.

If improper drying/clothes wrinkled/rough texture/taking too long to dry, check the following:

• Restricted exhaust caused by plastic or thin foil flexible duct.

• Lint filter is not clean.

• Restriction in exhaust.

• Outside exhaust hood damper door stuck closed.

• Exhaust too long, too many elbows, flex ductwork installed.

• Poor makeup air available for the dryer.

• Incorrect tumbler speed. Tumbler belt slipping.

• Blower impeller bound; check for foreign material in blower area.

• Customer overloading dryer.

• Check clothing labels for fabric content and cycle selected.

• Gas valve coil opens - weak point in coil opens when stressed under heated conditions.

• Clothes too wet due to insufficient spin- out by washer.

Noisy and/Or Vibration

• Thumping. Check for loose tumbler baffle, rear tumbler roller(s) worn or misaligned, out-of-round tumbler or high weld seam on tumbler.

• Ticking. Check for loose wire harness or object caught in blower wheel area.

• Scraping. Check for front or rear bulkhead felt seal out of position or worn tumbler front Rulon™ bearings.

• Popping or squealing sound. Check for a sticky or frayed belt.

Page 18

Troubleshooting Procedures

WARNING

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

Single Dryer Troubleshooting Guide

Display Is

Blank

Make sure dryer is

Yes

plugged in to live

power source

Is the exhaust tube

nipple on the side of

the display damaged?

No No

Initiates the

manual reset

sequence

Enter service mode using service switch does display contain

a diagnostic code?

Unplug dryer and check wiring

and termination between

transformer, service switch,

and control board.

Plug in dryer, open

service door is

Yes

there 26 VDC

across the service

door. switch?

Does 115 VAC

appear across the

primary of the

transformer?

Yes

See diagnostic

code guide.

Replace the

transformer, inspect

control board for burned

components and replace

it if damaged

Abnormal

Display

Function

If problem still

exists replace the

control board

Unplug the machine

then plug it back in. If

problem still exist,

initiate the manual reset

sequence.

Check wiring to

transformer and

power at outlet.

If problem still exists,

replace the control board.

Page 19

Troubleshooting Procedures

WARNING

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

Single Dryer Troubleshooting Guide

Dryer

Stopped

with Zero

Minutes

Remaining

In The

Display

Open

corresponding

dryer door. Did

display change?

Yes

The dryer door must

be opened after the end of a cycle before the dryer will operate

again. Dryer is

operating normally.

Replace door

Unplug dryer and open

doors. Check continuity

of problem door switch

and replace it if shorted.

Does door switch

open and close

properly?

switch.

Yes

Plug In Dryer

Check wiring and

termination

between door

switch and control

board.

If problem persist,

replace control board.

Cannot

Enter Or

Exit

Operator

Mode

Operator

Options

Revert To

Defaults

Dryer Runs

Without

Program

Selection

Check adjustment

of service switch

and lock.

problem still exists, replace

Setup operator options as desired unplug machine for minimum 15 seconds, then

plug in the dryer.

Unplug the dryer is

there continuity from

GG2 to GG3?

Check wiring and

terminations between

service switch and

control board.

Reconnect AA1. If the

the control board

persists, replace

Plug the dryer in . If problem still exists,

perform the single dryer diagnostics

If problem

control board

program.

Unplug the dryer and connector AA1.

Check for continuity between the yellow

wire (pin 2) and the orange wire (pin 3)

Does service

switch open and

close properly?

coming from the service switch.

NoYes

Replace service

switch

Yes

Replace the control

board.

Page 20

Troubleshooting Procedures

WARNING

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

Single Dryer Troubleshooting Guide

Display

Flashes In

User Mode

Display

shows "Add" Or "Available" When Not In A

Cycle And No

Coins Have

Been Added

Make sure that the

vault box is in all the

way. If it is out, the

display will flash.

Unplug dryer. Disconnect lower

connector from control board.

check for continuity between

terminals 7 and 8 of connector

while cycling vault switch.

Is price suppression

mode selected?

Yes

Check for the proper

adjustment of vault

switch.

Reconnect AA1. If

problem persists,

Normal operation. Price

suppression is typically used when

a different control system that has

its own display is responsible for

starting the machine.

Check wiring and

termination between

vault switch and

Does vault switch

open and close

properly?

Yes

replace control

board

control board.

Replace vault

switch.

If price suppression

is not desired.

Deselect it in service

mode.

Go to the section "Abnormal

Display Or Function"

Coins Dropped Into Machine And

Credited Are

Eventually

Is the clear escrow

mode selected?

Yes

Normal operation. Money in escrow

is cleared out after 30 minutes

pass with no cycle in process or

coin related activity.

If clear escrow mode

is not desired,

deselect it in service

mode.

Lost

Go to the section "Abnormal

Display Or Function"

Page 21

Troubleshooting Procedures

WARNING

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

Single Dryer Troubleshooting Guide

Control

Does Not

Respond To

Program

Key Inputs

Enter service mode.

Does display contain

a diagnostic code?

Does the keys work

in service mode?

Yes

Exit service mode.

Does the display

show "Select

Cycle"?

Put the proper

number of coins

into the coin drop.

Yes

Yes No

See diagnostic code

troubleshooting guide

Unplug dyer and check

membrane switch tail

connection to the board.

Plug the dryer back in..

Is the door shut? Close the door.

Yes

Does the help mode

show that the door is

shut?

Unplug dryer and check

continuity of the door

switch when the door is

opened and closed.

Yes

If problem persists replace

membrane switch.

If problem persists,

replace control board.

Unplug the dryer , then

plug it back in.

If problem

persists, replace

control board.

Does door switch

open and close

properly?

Yes

Unplug dryers and check

wiring and termination

between door switch and

control board.

Adjust door switch

or replace it if

necessary.

If problem

persists, replace

control board.

Page 22

Troubleshooting Procedures

WARNING

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

Single Dryer Troubleshooting Guide

Dryer Drum

Will Not

Turn

Enter service mode

using the service

switch.

Did a diagnostic code

appear?

Clear the diagnostic codes.

Exit service mode.

Does the display

show Zero minutes?

Start a diagnostic cycle .

Does 115 VAC appear

across the motor?

Let the motor and

thermal protector cool for

5 minutes.

Yes

See the single

dryer diagnostic

code guide.

Replace the door

switch.

Is the drum belt in the

proper position and not

damaged?

Position the belt

correctly or

replace the belt.

Check wiring and termination between control board, motor

relay, door switch, motor

and thermal fuse.

Does 115 VAC appear

across the motor?

Replace the

control board.

No Yes

Does the drum

Yes

turn?

Replace the motor

Normal operation

Page 23

Troubleshooting Procedures

WARNING

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

Single Dryer Troubleshooting Guide

Response

To Coin 1 or

Coin 2

Is the display blank?

Yes

See "Blank

Display " section.

Enter service mode using using

service switch. Does display

contain a diagnostic code?

Is the coin slide option

selected?

Is debit only mode

selected?

Is price suppression

selected?

Drop a coin through the coin 1 (or coin 2) drop. does the

"*" in the display flash?

Yes

See diagnostic

code guide

Timings for the coin slide

mode will cause coins to

not be counted .

Deselect the coin slide

mode.

Coins are ignored if in

debit only mode. Select

the coin and debit or coin

only mode.

The price and amount

remaining to be added

do not display in price

suppression mode.

Go to the section

"Abnormal Display

Or Function"

If the problem still exists, replace the

optic sensor.

If the problem still exists, replace the

control board.

Check the coin mechanism for

proper adjustment.

Clean the optic

sensor, if

necessary

Is the resistance

between the red wire and

the white wire in the coin 1 connector greater than

Check wiring and termination

between coin 1 (or coin 2)

drop and the control board.

Unplug dryer and the

coin 1 connector

NoNo

10K ohms?

Make sure that there is not

too much ambient light. If

problem still exists, replace

the coin1 (or coin 2) optic

sensor.

Page 24

Troubleshooting Procedures

WARNING

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

Single Dryer Troubleshooting Guide

Will not

respond to

handheld

PDA

Will Not Keep

Time Of Day

During Power

Interruptions

Does PDA

respond to other

machines?

PDA has failed.

Is a battery

installed?

A battery must be installed

in order to keep time of day

during power interruptions.

Check optic

Yes

Does greater than

Yes No

3.4VDC appear

between the red

and black wires of

the battery?

Check battery connector and

window for

obstructions, dirt,

or scratches.

If problem still exists replace

control board

Yes

termination

Replace Battery

If problem

persists, replace

control board.

No Decimal

Point Is Used

In The Price

Is Add coins mode

selected?

Yes

Normal operation. Add coins mode

is used in some countries as

needed based on local coin

denominations.

If add coins mode is

not desired, deselect

it in service mode.

Display

Go to the section "Abnormal

Display Or Function"

Dryer

Dries Too

Slowly

Check for exhaust

restriction

Page 25

Troubleshooting Procedures

WARNING

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

Single Dryer Troubleshooting Guide

Dryer Will

Not Heat

Open gas supply valves

for gas dryer (Gas Dryer

Only) . Check all circuit

breakers and fuses that

feed electric dryer.

Replace the 140 deg. thermostat.

If the problem still

exists, replace the

control board.

Replace the

155 deg.

thermostat

Unplug dryer. Check wiring and terminations between control board,

heater relay, heater,

thermostats and motor

Does the help

Unplug the dryer .

No Yes No

does the 155 deg.

mode show that

the 140 deg.

thermostat is

closed?

Yes

Unplug the dryer

does the high limit

thermostat show

continuity

Yes

thermostat show

continuity?

Plug the dryer in. Allow the thermostats to cool.

Ensure that they are

close to room

temperature.

Replace high

limit

thermostat.

Unplug dryer. At room

temperature is the

resistance of the heating

element less than 20

ohms? (Electric dryer

only)

Replace the

heater coil

Yes

Check motor centrifugal

switch and replace if

necessary

Inspect the heater relay

and replace if necessary

(Electric Dryer only)

If problem persists, replace the control

board

Page 26

Troubleshooting Procedures

WARNING

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

Single Dryer Diagnostic Program

The dryer must be at or near

Dryer

Diagnostic

Program

room temperature and plugged

in with the door closed to run

this program. No user program

should be in progress

Enter operator mode

using the service

switch

Push the delicates

program keypad

for more than 1

second

Are all of the

segments in the

display working?

Yes

Push the permanent

press program keypad

to start the diagnostic

program

Is there a

code?

Yes

diagnostic

code?

board

Yes

No Yes

Replace the control

Is there diagnostic

Is the dryer drum turning?

See the single dryer

diagnostic code guide

See the single dryer

diagnostic code guide

See "Dryer Drum Will Not

Turn" in the troubleshooting

guide

Is the heater on (Allow ample time for the gas

flame to ignite)?

Yes

Dryer is operating

normally

To cancel the diagnostic

program, push the delicates

program keypad

See "Dryer Will Not

Heat" in the

troubleshooting guide

Exit operator mode using

the service switch

Page 27

Troubleshooting Procedures

WARNING

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

Single Dryer Diagnostic Code

Door Sense

Problem

Motor Control

Circuit Problem

Try to Clear the diagnostic

code by pressing the

Delicates keypad for more

than 1 second while the

code is displayed.

Try to Clear the

diagnostic code by

pressing the

Delicates keypad

for more than 1

second while the

code is displayed.

Did the

diagnostic code

clear?

Replace the

control board.

Push the Perm Press program

keypad to start the

diagnostic

program

Did the

diagnostic code

reappear?

indication.

Yes

Control board

is operating

normally.

If diagnostic code still

appears, the power

line is noisy and

should be tested.

indication.

Control board

is operating

normally.

False

d5 Blocked Coin 1or

d13 Blocked Coin 2

or Coin Drop circuit

Problem

Fix the power line

disturbance.

Unplug dryer and

check the wiring and termination

between the coin

drop and the

control board.

Yes

Check the wiring between the

control board and the motor.

Is the power

Yes

line supply to the

machine noisy?

Check for an

object blocking the

coin drop optic

sensor. It takes 8

seconds for the

control to

recognize the

blockage

If the problem still exists, replace the

coin drop coin

sensor.

Replace the

control board.

If the

problem

still exist,

replace the

control

board.

Page 28

Troubleshooting Procedures

WARNING

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

Single Dryer Diagnostic Code

Voltage Problem

Less Than 90

VAC

Try to clear the

diagnostic code by

pressing the Delicates

keypad for more than 1

second while the code

is displayed.

Check installation to

insure proper power going to this dryer. If d9 persist, check the

wiring or replace the

transformer

If problem persists replace

the control board.

Exit service mode , and pause for

10 seconds, enter service mode.

Did the

diagnostic code

cancel?

Are other machines

at this location giving a d9

diagnostic code?

Yes

YesNo

Low voltage was

sensed on the

power line, but is

now ok.

Check installation

to insure proper

power going to all

of the dryers

d12

Motor Sensed

Problem

d16

PR Models Only

Clear diagnostic

code by pushing a

Delicates keypad

for at least 1

second while code

is displayed.

Is card reader

installed?

Install reader call distributor to reset control

board. PDA will not reset board.

diagnostic code

Check wiring

between debit

card reader

and control

Does

remain?

board

Yes

Power down and

up machine to

reset card reader

Replace control

board

False indication

control board

Replace card

reader or

control board.

Page 29

Troubleshooting Procedures

WARNING

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

Stack Dryer Troubleshooting Guide

Display Is

Blank

Abnormal

Display Or

Function

Make sure both

dryers are plugged

into live power

source.

Unplug dryers. Check wiring

and terminations between

transformer, service switch

and control board.

Initiate reset

sequence. If

problem persists

replace control

board.

Cycle power to

both dryers.

Yes No

Enter operator

mode using

service switch. Is

diagnostic code

displayed?

Plug in dryer.

Does 115VAC

appear across the

primary of the

transformer?

Does each of 6.7 VAC,

22.6 VAC and 20.7 VAC appear across

transformer secondary?

Initiate a service

cycle.

Yes

If problem

persists, initiate

reset sequence.

See Diagnostic

code Trouble

Shooting Guide.

Check wiring to

transformer, power

at outlet and

breaker.

Replace the transformer.

Inspect control board for burned components and

replace it if damaged.

If problem persist,

replace control

board.

Upper or

Lower Dryer

Has Zero

Minutes

Remaining

Open

corresponding

dryer door. Did

display change?

Unplug both dryers and

open doors. Check

continuity of problem

door switch and replace

it if shorted.

In Display.

Yes

Check wiring and

The dryer door must

be opened after the end of a cycle. This is a safety check on

the door switch.

Does door switch

open and close

properly?

Replace door

switch.

Yes

termination

between door

switch and control

board.

If problem persist,

replace control board.

Page 30

Troubleshooting Procedures

WARNING

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

Stack Dryer Troubleshooting Guide

Will not

respond to

handheld

PDA

Control

Board Does

Not

Respond To

Keypads

Does PDA

respond to other

machines?

PDA has failed.

When service door is

closed, dryer door

must be closed for

corresponding

keypads to work.

Enter operator mode using service switch. Does display contain

a diagnostic code?

Check optic

Yes

Does control board

No No

program keys?

window for

obstructions, dirt,

or scratches.

If problem still exists replace

control board

Does Display show "Select

Cycle"?

respond to

Cycle price must be satisfied before keypads will work.

Unplug dyers and

check problem

membrane switch

tail connection.

Yes

See diagnostic code

troubleshooting guide

Unplug dryers and check

wiring and termination

between door switch and

control board. Replace

door switch if necessary

Yes

Plug in dryer. If problem

persists replace

corresponding

membrane switch.

If problem

persists, initiate

reset sequence.

If problem

persists, replace

control board.

Page 31

Troubleshooting Procedures

WARNING

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

Stack Dryer Troubleshooting Guide

Response

To Coin 1 Or Coin 2

Is display blank

Yes

See "Blank

Display" section in

troubleshooting

guide.

Check lighting. Too

much ambient light in

the coin drop will cause

coins to not be

recognize.

If problem persists

replace coin

sensor.

Is a d5 or d13

displayed in

operator mode?

Yes No

See diagnostic

troubleshooting

guide

Unplug dryer disconnect

coin sensor and check

resistance between red and

white wire. Is resistance greater than 10K ohms?

Is coin slide option

selected?

Check the coin

mechanism for

proper adjustment

Yes

Wait 20 seconds. If

replace control board.

Timing for the coin slide

YesNo

recognized. Deselect the

Reconnect

connector and

plug in dryer.

problem persists

mode will cause coin

drop coins to not be

coin slide mode.

Check wiring and

termination

between coin drop

and control board.

Will Not

Keep Time

Of Day During

Power

Is a harnessed

battery installed?

Yes No

Does greater than

3.4VDC appear

between the red

and black wires of

the battery?

Replace Battery

Interruption

Dryer

Dries Too

Slowly

No Yes

A battery must be

installed in order

to keep time of

day during power

interruptions.

Check for exhaust

restriction

Check battery

connector and

termination

If problem

persists, replace

control board.

Page 32

Troubleshooting Procedures

WARNING

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

Stack Dryer Troubleshooting Guide

Dryer Will

Not Heat

Open all gas supply valves for gas dryer.

Check all circuit

breakers and fuses that

feed electric dryer.

Unplug dryer.

Does thermal fuse

show continuity?

No No No

Replace thermal

fuse and

thermostats.

Check motor

centrifugal switch

and replace if

necessary.

Unplug dryer does

Yes Yes

thermostat show

Replace high

limit thermostat.

Inspect heater

relay and replace if

(electric dryer)

Unplug dryer. Check wiring and terminations between control board,

heater relay, heater and

motor

high limit

continuity?

Check for

exhaust

restrictions.

necessary.

Unplug dryer.

Does 155 deg.

thermostat

show

continuity?

Replace 155

deg.

thermostat.

Yes

Check wiring and

termination

between

thermistor and

control board

room temperature is

Yes

the resistance of the

heating element less

(Electric dryer only)

Unplug dryer. At

than 20 ohms?

Replace heating

element.

Cannot

Enter Or

Exit

Operator

Check adjustment

of service switch

and lock.

Replace

thermistor.

Check wiring and

terminations between

service switch and

control board.

Disconnect harness

from thermistor check

between 5K and 15K

ohms at room

temperature?

Unplug dryer. Disconnect upper

connector from control board.

Check for conuity between terminal

13 and 14 of connector while

cycling the service switch

If problem persist,

YesNo

replace control

board.

Mode

If problem persists, replace

control board

Does service

switch open and

close properly?

NoYes

Replace service

switch

Page 33

Troubleshooting Procedures

WARNING

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

Stack Dryer Troubleshooting Guide

Operator

Options

Revert To

Defaults

Display

Flashes In

User Mode

Dryer Runs

Without

Program

Selection

Setup operator

options as desired

unplug machine for

minimum 15

seconds, then plug in.

Check wiring and

termination

between vault

switch and control

board.

If problem

persists, replace

control board

Check for welded

motor relay and

replace if necessary.

If problem

persists, replace

control board

Unplug dryer. Disconnect lower

connector from control board.

check for conuity between

terminals 7 and 8 of connector

while cycling vault switch

Does vault switch

open and close

properly?

If problem

persists, initiates a

dryer service

cycle.

NoYes

Replace vault

switch.

Dryer Drum

Will Not

Check wiring and termination between control board, motor relay, door switch, and motor.

Does dryer door

switch open and

close properly?

Replace Door

switch.

Turn

Yes

Close the dryer door and enter

operator mode using service

switch. Push a delicates keypad

for at least 1 second

If problem

persists, replace

control board.

Does 25 VDC appear

across coil of motor

Did a diagnostic code

appear?

relay?

Yes

YesNo

Replace motor

See the PD

stacked dryer

diagnostic code

troubleshooting

guide.

relay.

Page 34

Troubleshooting Procedures

WARNING

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

Stack Dryer Diagnostic Program

Dryer

Diagnostic

Program

Enter Operator

Mode by unlocking

the service switch

If any segments of display

are not flashing. Replace

the control board.

Is dryer drum

turning?

Yes

If a diagnostic

code is displayed

refer to

corresponding

section of trouble

shooting guide.

Dryers should be

near room

temperature,

plugged in, and

doors closed.

Is heater on? (Allow

ample time for gas

flames to ignite)

Yes

To enter

diagnostic mode

or clear diagnostic

codes press a

delicates keypad

for at least 1

second. customer

cycles will be

terminated

To initiates a

service cycle push

the permanent

press keypad for

the dryer(s) to be

started-- upper or

lower.

Dryer check ok.

No No

Refer to dryer

drum will not turn

section.

Refer to no heat

section.

If desired, push

the respective

delicates keypad

to cancel the

service cycle.

Exit operator mode

by locking the

service door.

Page 35

Troubleshooting Procedures

WARNING

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

Stack Dryer Diagnostic Code

d1 or d17

Door Sense Problem

d4 or d20

Motor Control Circuit

Problem

d1 indicates the upper dryer door, d17 indicates the

lower dryer door

on control board or

due to power line

interference

Replace the

control board.

Try to Clear the

diagnostic code by

pressing the

Delicates keypad

for more than 1

second while the

code is displayed.

Try to Clear the

diagnostic code by

pressing the

Delicates keypad

for more than 1

second while the

code is displayed.

If diagnostic code

still appears, the

power line is noisy

and should be

tested.

Push the Perm Press program

keypad to start the

diagnostic

program.

diagnostic code

reappear?

Did the

diagnostic code

clear?

Yes

Control board

indication.

Control board

is operating

normally.

False

indication.

is operating

normally.

False

Yes

Check the wiring between the

control board and the motor.

Fix the power line

disturbance.

d5 Blocked Coin 1

(d13 Blocked Coin 2)

Or Coin Drop Circuit

Problem

Unplug dryer and

check the wiring

and termination

between the coin

drop and the

control board.

Yes

Check for an

object blocking the

coin drop optic

sensor. It takes 8

seconds for the

control to

recognize the

blockage.

Is the power

line supply to the

machine noisy?

If the problem still

exists, replace the

coin drop coin

sensor.

Replace the

control board.

If the

problem

still exist,

replace the

control

board.

Page 36

Troubleshooting Procedures

WARNING

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

Stack Dryer Diagnostic Code

Try to clear the

Voltage Problem

Less Than 90 VAC

diagnostic code by

pressing the

Delicates keypad

for more than 1

second while the

code is displayed.

Exit service mode , and pause for

10 seconds, enter service mode.

d12 or d14 Motor

Sensed Problem

Check installation

to insure proper

power going to this

dryer. If d9

persist, check the

wiring or replace

the transformer

If problem persists replace

the control board.

d12 indicates

lower dryer motor

sense. d14

indicates upper

dryer motor sense

Did the

diagnostic code

cancel?

Are other machines

at this location giving a d9

diagnostic code?

Clear diagnostic

code by pushing a

Delicates keypad

for at least 1

second while code

is displayed.

Yes

YesNo

diagnostic code

Low voltage was

sensed on the

power line, but is

now ok.

Check installation

to insure proper

power going to all

of the dryers

Does

remain?

Yes

Replace card

reader or

control board.

d16

PR Models Only

False indication

control board

Check wiring

Is card reader

installed?

Install reader or use PDA to change mode out of

Gen 2 debit mode

between debit

card reader

and control

board

Replace control

board

Power down and

up machine to

reset card reader

Page 37

Disassembly Procedures

WARNI NG

Control Panel

1. Disconnect power supply to unit.

2. Remove top two screws.

Remove Two Top Screws

3. Carefully lay control Panel forward.

Microprocessor Board

1. Disconnect power supply to unit.

2. Remove Control Panel.

3. Disconnect wiring harness connectors. Note: Observe the positions of the harness connectors

plugged into the control board.

To avoid risk of electrical shock, personal injury or death; disconnect power to unit before servicing.

Transformer

1. Disconnect power to supply to unit.

2. Remove Control Panel.

3. Disconnect wiring harness connection.

4. Remove screws securing Transformer in place.

Meter Case

1. Disconnect power supply to unit.

2. Remove Service Access Door and Coin box.

4. Remove four nuts holding the Microprocessor Board to the standoff studs.

5. Disconnect Ribbon connector to Touch Pad.

Touch Pad Assembly

!. Disconnect power supply to unit.

2. Remove the screws securing the Facia.

3. Remove Microprocessor Board.

4. Disconnect ribbon connector.

5. Remove screws securing Touch Pad Assembly to Control Panel.

3. Remove two 9/16” hex nuts securing Meter Case.

4. Remove Control Panel.

5. Remove 1/4” hex head screws hold Meter Case to the Console.

6. Disconnect wires for Service & Vault Switch and connector for the Coin Drop Sensor.

7. Lift Meter Case off the Top Cover.

Page 38

Disassembly Procedures

WARNI NG

Service Door Switch

1. Disconnect power supply to unit.

2. Remove service access door.

3. Remove the screw securing the switch mounting bracket and lift the switch from inside the meter case.

4. Disconnect wires from the switch, and squeeze tabs on switch to remove from bracket.

To avoid risk of electrical shock, personal injury or death; disconnect power to unit before servicing.

5. Disconnect wiring harness for Coin Sensor.

6. Remove Coin Drop Acceptor

Coin Sensor

1. Disconnect power supply to unit.

2. Remove Coin Acceptor.

3. Remove screw securing Coin Sensor to the rear of the Coin Drop Acceptor.

Coin Vault Switch

1. Disconnect power supply to unit.

2. Remove service access door and coin box.

3. Disconnect wires from the switch.

4. Squeeze the two tabs on the switch and push the switch through towards the front.

Coin Drop Acceptor

1. Disconnect power supply to unit.

2. Unlock service access door.

3. Loosen the two locking bolts from inside the meter case.

4. Remove Control Panel.

Door Assembly

1. Disconnect power supply to unit.

2. Open the door and remove the center screw of each hinge secured to the inner flange of the front panel in the door opening.

Hinge

Slots

3. Grasp the door with both hands and lift the door in the hinge area and draw the door assembly away from the machine. This will disengage the hinges from the slots in the front shroud.

Page 39

Disassembly Procedures

WARNI NG

To avoid risk of electrical shock, personal injury or death; disconnect power to unit before servicing.

Reversing Door Assembly

Note: NOT ALL DOORS ARE REVERSIBLE

1. Disconnect power supply to unit.

2. Remove Door Assembly.

3. Remove the plastic hinge hole covers on the opposite side of the door opening.

4. Remove the hinges from the door itself and relocate them to the other side of the door.

5. Remount the door into the slots on the opposite side of the door opening in the front shroud and secure with one screw into each hinge.

6. Mount the plastic hinge hole covers onto the side the hinges were previously on, to cover the slots in the front shroud.

Counter Sunk Screw

Door

Hinge Hole Cover

Door Catch Cover

Hinge

Inner Door Cover Plate

Door Strike

Screw

Door

Screw

Door Disassembly

1. Disconnect power supply to unit.

2. Remove ten screws located across the bottom and along either side of the door panel. The top edge of the outer panel is folded over the inner door plug.

Front Panel

1. Disconnect power supply to unit.

2. Open the door and remove the four screws along the inside lip of the door opening.

Note: Two are located vertically on either side of the

door opening. These screws secure the front panel to the front shroud assembly.

Remove

Four

Screws

3. Remove the two lower screws (T-25H Torx) securing the front panel to the lower side flanges of the cabinet assembly (If present).

Remove Two Screws

Page 40

Disassembly Procedures

WARNI NG

4. Grasp the verticle sides of the front panel 3/4 of the way down and pull front panel away from the dryer.

Note: The front panel is held to the cabinet by means

of clips secured to the front shroud. Small slots in the front panel engage the clips and hold the front panel in place.

Slot

Retaining

Clip

To avoid risk of electrical shock, personal injury or death; disconnect power to unit before servicing.

3. Locate and remove two 5/16" hex head screws securing the two hold down brackets for the top cover.

4. To remove the hold down brackets, swing the bracket to the outside and unhook the bracket from the slot in the top cover lip.

Note: If the door is still positioned on the front shroud,

open the door prior to lifting the front of the top cover and tilt the top cover toward the rear of the machine.

5. Tilt the top of the front panel away from the machine and lift the panel off two clips retaining the front panel to the base frame.

6. Disconnect wires to Door Switch.

Top Cover

1. Disconnect power supply to unit.

2. Remove the front panel

Cover

Hold

Down

Bracket

Door Switch

1. Disconnect power supply to unit.

2. Remove Front Panel.

3. Remove wires from switch.

4. Squeeze tabs on switch together and remove switch.

Shroud

Page 41

Disassembly Procedures

WARNI NG

Front Shroud Assembly Removal

1. Disconnect power supply to unit.

2. Remove Front Panel and Door Assembly.

3. Remove hold down brackets securing Top Cover to the Cabinet.

4. Remove four outer perimeter screws holding Shroud Assembly to cabinet.

NOTE: Remove the lowest outside screws on each

corner and then the top outside screws. Leave the four inner screws in place.

To avoid risk of electrical shock, personal injury or death; disconnect power to unit before servicing.

Remove Four Screws

4. Remove the four 1/4" hex head screws and the one cross recess countersunk screw securing the outlet duct to the tumbler front.

Note: Two of the hex head screws are hidden under the

felt seal. Pull the outlet duct free from the tumbler front.

Remove these four screws.

Screws

5. Pull Front shroud Assembly out and away from tumbler.

Note: Partially lift the Top Cover.

Note: When reinstalling the Front Shroud Assembly,

lift the front inner edge of the tumbler to allow the front of the tumbler to rest on the teflon (Rulon™) bearings on the shroud and tumbler front assembly. Also, check the front felt seal to ensure it is outside the lip of the tumbler.

Outlet Duct, Shroud & Tumbler Front

1. Disconnect power supply to unit.

2. Remove the shroud and tumbler front assembly from the dryer.

3. Remove the two screws securing the shroud to the tumbler front and the two screws securing the shroud to the outlet duct. Pull the shroud free from the assembly.

Remove Five Screws

4. When reattaching the outlet duct assembly to the tumbler front, install the center screw (found above the grid area) first, followed by the four outside screws in any order.

Install First

Screws

Page 42

Disassembly Procedures

WARNI NG

Lint Filter

Note: Lint Filter is one piece and can be removed for

cleaning.

Bearing & Pads

1. Disconnect power supply to unit.

2. Remove Front Shroud Assembly.

3. Drill out the old rivets and rivet new bearings in place. Note: In positioning the bearing and cork pad, the face

of the bearing should ride against the tumbler.

To avoid risk of electrical shock, personal injury or death; disconnect power to unit before servicing.

Felt Seal

Locking Tabs

Note: When reinstalling, the seal will be mounted to

the tumbler front in a counterclockwise rotation. Start at the 3:00 position and place under the locking tabs. The seal will overlap 1 1/4". The coated side (which is the lighter of the two colors) goes against the tumbler. The felt seal is then looped in a "U-shape” so that the lightercolored side is against the tumbler front as it is slid in place under the tabs. Bend tabs back over the felt seal with a flat blade screwdriver.

Felt Seal

Rivet

Teflon Bearings

on Cork Pads

Teflon Bearing

Steel

Bearing

Rivet

Surface

Cutaway of Bearing Surface

Cork

Pad

Rivet

Front Seal

1. Disconnect power supply to unit.

2. Remove Front Shroud Assembly.

3. Remove old felt seal by prying the locking tabs up with a flat-blade screwdriver.

Note: Pay close attention to the location of the seal

overlap. This will be important as you reinstall the new seal.

Belt

1. Disconnect power supply to unit.

2. Remove Shroud Assembly.

3. Insert left hand along side of tumbler at the 8 o'clock position. Insert right arm under tumbler (as close to blower as possible).

View From the Back of the Dryer

Drive Belt

Idler Spring

Idler Arm

Idler Pulley

Motor Pulley

Page 43

Disassembly Procedures

WARNI NG

4. Grasp the idler pulley in left hand, pull idler upward and to the left.

Note: There is a built-in stop to prevent overstressing

of the idler arm spring. Slip belt off the motor pulley.

5. Slip the belt off the back of the tumbler.

Pull to the Side

Work the Belt Off of the Pulley

To avoid risk of electrical shock, personal injury or death; disconnect power to unit before servicing.

5. Locate the belt and create a small loop with your right hand, ensuring the belt is free of twist.

6. Position the open end of the loop (ribbed side down) onto the motor pulley with your right hand.

7. To clear the drive belt, grasp the idler pulley in left hand, pull idler up and to the left.

NOTE: There is a built-in stop to prevent overstressing of

the idler arm spring.

8. Relax your left hand and allow the idler pulley to rest down onto the belt.

9. Grasp baffles with both hands and rotate tumbler 1 or 2 turns clockwise to allow the belt to align itself.

As Viewed From The Front

Tumbler Belt

6. While lifting top cover, pull tumbler out of cabinet.

Installing Drive Belt

1. Disconnect power supply to unit.

2. Place belt onto the outside of the tumbler and position the belt 1 1/2" in front of rear baffle mounting screws with ribbed side against tumbler.

Rear Bulkhead

Baffle Rear Mounting Screw

Belt

3. Position tumbler into the rear felt seal, resting the tumbler onto the rear rollers. Lower the front of the tumbler onto the blower housing.

4. Insert left hand along side of tumbler at 8 o'clock. Insert right arm under tumbler (as close to blower as possible).

Cylinder

Idler Pulley

Motor Pulley

Baffles

1. Disconnect power supply to unit.

2. Remove Front Panel and Door.

3. Lift Top Cover.

4. Rotate the tumbler until the screws of the baffle to be removed appear at the top of the tumbler.

5. Remove two screws holding the baffle to the tumbler.

Rear Shroud Assembly

1. Disconnect power supply to unit.

2. Remove Front Shroud Assembly.

3. Remove Tumbler and Belt

4. Remove Gas Valve Assembly or Heater Assembly.

Note: Be careful on gas models, the igniter is fragile.

5. Remove heat enclosure.

Page 44

Disassembly Procedures

WARNI NG

Four Screws

6. From back of dryer, remove four screws holding Tumbler Back Assembly.

7. Remove the assembly.

To avoid risk of electrical shock, personal injury or death; disconnect power to unit before servicing.

Note: When reinstalling, the seal will be mounted to the

tumbler back in a clockwise rotation. Start at the 11:00 position and place under the locking tabs. The seal will overlap 1 1/4". The coated side (which is the lighter of the two colors) goes against the tumbler. The seal is then looped in a "U" shape so the lighter colored side is against the tumbler back as it is slid in place under the tabs. Bend tabs back over seal with a flat-bladed screwdriver.

Roller and Bearing Assembly

1. Disconnect power supply to unit.

2. Remove Front Shroud/ Assembly

3. Remove Tumbler and Belt.

4. Remove retaining ring from groove in shaft

5. Remove fiber washer and roller.

6. Remove nut securing roller shaft.

Back Seal

1. Disconnect power supply to unit.

2. Remove Tumbler Back Assembly.

Note: For ease in servicing, we recommend removal

of the Tumbler Back Assembly from the dryer. This will ensure the felt seal is secured properly.

3. Remove the old felt seal by prying the locking tabs out with a flat-blade screwdriver.

Note: Pay close attention to the location of the seal

overlap. This will be important as you install the new seal.

Felt

Tumbler Rides on Light-Colored Side of Felt.

Nut

Washer

Roller Shaft

Roller

Fiber Washer

Retaining Ring

Note: There is a spacer behind the roller. When

replacing parts, be certain of the order of the replacement.

Rear Bulkhead

Dark-Colored Side of Felt is Clamped to the Channel of the Rear Bulkhead by Tabs.

Page 45

Disassembly Procedures

WARNI NG

Thermostats

1. Disconnect power supply to unit.

2. Remove Front Panel. Note: Thermostats are located on Blower Cover. Hi-

Limit Thermostat and is located on heating source for gas and electric models.

Cycling Thermostat

Thermal Fuse

Low Cycling Thermostat

Cycling Thermostat

1. Disconnect power supply to unit.

2. Remove Front Panel.

3. Disconnect wires to Cycling Thermostat.

4. Remove two screws securing thermostat to blower cover.

To avoid risk of electrical shock, personal injury or death; disconnect power to unit before servicing.

Hi-Limit Thermostat

1. Disconnect power supply to unit.

2. Remove Front Panel. Note: Hi-Limit Thermostat is located on the right hand

side of the Heating Cone for Gas Models and on the left hand side for Electric Models.

3. Disconnect wires to Hi-Limit Thermostat .

4. Loosen the rear mounting screw and remove the front screw.

Note: The mounting tabs of the thermostat are open-

slotted.

Blower Assembly

1. Disconnect power supply to unit.

2. Remove Front Panel.

3. Remove Front Shroud Assembly.

Blower Seal

1. Disconnect power supply to unit.

2. `Remove Front Shroud Assembly.

Note: The rubber seal is secured to the outlet duct

opening. The seal is fitted around the outer circumference lip of the outlet duct with the flange of the seal facing the blower cover.

Low-cycling Thermostat

1. Disconnect power supply to unit.

2. Remove Front Panel.

3. Disconnect wires to Low-Cycling Thermostat.

4. Remove Two screws securing thermostat to blower cover.

Thermal Fuse

1. Disconnect power supply to unit.

2. Remove Front Panel.

3. Disconnect wires to Thermal Fuse.

4. Remove Two screws securing fuse to blower cover.

Note: “MDE” dryers (Electric Dryer Models) also have a

Thermal Fuse mounted on the Heater Enclosure.

Air Outlet

Seal

Air Outlet

Duct

Blower Cover

1. Disconnect power supply to unit.

2. Remove Front Shroud Assembly.

3. Remove screws holding cover to blower housing. Note: One screw secures blower Cover to base frame.

Page 46

Disassembly Procedures

WARNI NG

Remove

Screws

Note: It is not necessary to remove wires from

themostats to gain access to blower wheel. Lay the blower cover aside.

Install This

Screw

Second

First Screw to

Install

To avoid risk of electrical shock, personal injury or death; disconnect power to unit before servicing.

Retaining

Clip Clamp

Blower Wheel

Note: When replacing a blower wheel , always replace

the clamp.

5. Work blower wheel back and forth while pulling off shaft.

Note: It may require considerable effort to move the

blower wheel.

6. Rotate the blower wheel in a clockwise rotation by hand to unscrew.

Note: The thread is left-hand and labeling on the rim of

the blower wheel indicates direction for blower removal or installation.

Note: When reinstalling the Blower Cover. Install the

far right screw closest to the exhaust duct (right most screw). Continue to assembly, moving to the next screw in a counterclockwise motion around the blower. Install the screw for the blower cover tab to the base frame last.

Blower

1. Disconnect power supply to unit.

2. Remove Blower Cover. Note: Models prior series 23, follow steps 3-5. Models

beginning with series 23 skip to Step 6-7

3. Remove Retaining clip.

4. Compress and remove Clamp around hub of blower wheel.

7. Remove blower wheel. Note: The blower wheel is designed to be properly

seated by hand. Little torque is required when reinstalling.

Page 47

Disassembly Procedures

WARNI NG

Exhaust Duct Pipe

1. Disconnect power supply to unit.

2. Remove Blower Assembly.

3. Remove screw on back of cabinet securing Exhaust duct.

Exhaust

Duct

Mounting

Screw

Drive Motor Assembly

Note: The entire blower and drive motor assembly can

be removed for servicing.

1. Disconnect power supply to unit.

2. Remove Front Shroud Assembly.

3. Remove the Belt and Tumbler.

4. Remove the screw in front of the Blower Assembly that secures the assembly to the base frame.

5. Remove wire harness from Drive Motor and thermostats on Blower Cover.

6. Remove two screws securing motor to base frame. An extension is required to reach the screws. Screws are located directly behind the Blower Housing.

To avoid risk of electrical shock, personal injury or death; disconnect power to unit before servicing.

Assembly Breakdown

1. Remove blower cover screws.

2. Remove blower wheel.

3. Remove retaining ring clip from motor shaft, positioned behind the blower impeller.

4. Remove the motor support clips which retain the motor to the motor base. Use a nut driver large enough to accept the hook end of the clip. With a downward push of the driver onto the clip, tilt the driver handle toward the motor to unhook the clip from the support.

5. Remove motor from motor base.

Motor Switch

1. Disconnect power supply to unit.

2. Remove shroud/tumbler front assembly.

3. Remove belts.

4. Remove tumbler.

5. Remove wire harness from motor switch by depressing tabs on either side of the harness connector and lift the connector from the switch.

6. Remove two screws holding switch to Drive Motor.

7. Disengage the thermal protector switch from the motor switch body.

Note: This can be done by either inserting a small flat

blade screwdriver into the slot near the switch terminals or breaking the switch body. The thermal protector switch is not replaceable and is part of the motor assembly.

Idler Arm Assembly

1. Disconnect power supply to unit.

2. Remove Front Shroud Assembly.

3. Remove Belts and Tumbler.

4. Unhook idler spring from the base frame and remove screw securing the assembly to motor support bracket.

Remove Screws

7. Carefully lift the front half of the blower assembly and slide forward to disengage the motor base rear tab from the slot in the base frame.

Idler Arm

Assembly

Page 48

Disassembly Procedures

WARNI NG

5. Remove retaining clip from groove in shaft.

6. Remove fiber washer.

7. Remove Idler Pulley and bearing.

8. Remove second fiber washer.

Idler Shaft

Fiber

Washer

Idler Pulley

Fiber

WasherClip

Note: There is a fiber washer between the pulley and

the idler arm. When replacing parts, be certain the order of replacement is correct,

Idler Arm

Washer

Hex-Head

Bolt

To avoid risk of electrical shock, personal injury or death; disconnect power to unit before servicing.

4. Remove the two screws securing the coil holding bracket.

Note: The position of the flange of the idler pulley is

important. The flange should be positioned on the side opposite the idler arm.

Gas Valve Assembly

Hi-limit

Thermostat

Radiant

Sensor

Igniter

Gas Valve

Secondary

Coil

Holding &

Booster Coil

5. Remove the bracket and lift coils off.

Note: When repositioning the coils onto the valve, align

the coil positioning tabs and matching holes in the coil holding bracket for each coil.

Igniter

1. Disconnect power supply to unit.

2. Remove Front Panel.

3. Unplug igniter from Gas Valve.

4. Remove screw holding Igniter to Burner.

Coils

1. Disconnect power supply to unit.

2. Remove Front Panel.

3. Unplug wires harness from the Gas Valve Coils.

Page 49

Disassembly Procedures

WARNI NG

Gas Valve

1. Disconnect power supply to unit

2. Remove Front Panel.

3. Shut off gas supply and disconnect supply line to valve.

4. Disconnect wire harness at valve coils.

5. Disconnect wires from radiant sensor.

6. Loosen brass nut attaching angle connector to gas valve.

7. Remove two screws holding valve and burner assembly to base.

8. Slide valve bracket out of slot in base and remove valve and burner assembly.

9. Remove two screws holding gas valve to bracket on underside.

Combustion Cone

1. Disconnect power supply to unit.

2. Remove Front Panel.

3. Remove burner and igniter. Be careful igniter is fragile.

4. Remove wires from hi-limit thermostat.

5. Remove screw in front of cone holding it to base.

6. Remove screw at back of combustion cone holding cone tab to inlet duct.

7. Pull combustion cone out of dryer.

To avoid risk of electrical shock, personal injury or death; disconnect power to unit before servicing.

5. Remove tumbler back assembly. Note: Four screws are accessible from behind dryer.

5. Remove three screws securing inlet duct to the tumbler back assembly. The two lower screws are under the felt seal of the tumbler back assembly.

Note: For proper inlet duct to tumbler back assembly

alignment when reinstalling, align inlet duct to large hole in the tumbler back assembly and fasten top screw first.

Heater Enclosure

1. Disconnect power supply to unit.

2. Remove Front Panel and Door.

3. Remove screw holding Heater Enclosure shield to base. Remove Heater Shield from dryer.

4. Remove screw in back of enclosure holding tab to inlet duct.

Heater Enclosure

Thermal Fuse

Inlet Duct

1. Disconnect power supply to unit.

2. Remove Front Panel.

3. Remove Front Shroud Assembly, belt and tumbler.

4. Remove screws securing heat cone to base and to inlet duct.

Inlet Duct

Retaining

Clip

Radiant

Sensor

Combustion

Cone

Hi-Limit

Thermostat

Hi-Limit

Thermostat

Terminal Insulator

5. Remove wires from the Thermal Fuse and heater terminal on left side of enclosure. Remove purple wire from Hi-Limit Thermostat.

6. Pull heater assembly out of dryer.

Note: Terminal insulators are used on each end of the

element which attaches to spade connectors. These spade connectors are "crimped" to the wire and held in the insulator by small barbs on each side of the terminal. The barb must be bent parallel with each terminal before element package can be removed from the enclosure. Three screws hold the element package to the enclosure.

Page 50

Disassembly Procedures

WARNI NG

STACK DRYER SLOPED FRONT MODELS

Note: The following section is exclusive to the stack

dryers.

Service Panel and Switch

1. Disconnect power to the machine.

2. Remove three security screws.

Service

Lock

Remove Security Screws

To avoid risk of electrical shock, personal injury or death; disconnect power to unit before servicing.

5. Disconnect wires to service switch.

Access Cover

1. Disconnect power to unit.

2. Remove the Access Panel.

3. Locate and remove the 5/16" hex head screw located in the front of the dryer base frame. This screw secures the access cover to the base frame.

Screw

Access

Blower Housing

Cover

3. Unlock the service lock.

4. Pull the service panel down.

4. Open the door.

5. Carefully slide the access cover down and away from the machine to disengage the cover from retaining clips on the front shroud located above the front panel goal posts.

Slide

Access Cover

Front Panel

Access Cover Hook

Control Panel

1. Disconnect power to the machine.

2. Remove the Access Panel.

3. Remove three security and two pozi drive screws securing the Control Panel under the Console.

Service

Switch

Wires

Page 51

Disassembly Procedures

WARNI NG

Screws

4. Lift Control Panel away from the dryer

To avoid risk of electrical shock, personal injury or death; disconnect power to unit before servicing.

3. Remove three screws securing the Microprocessor to the Control Panel.

Remove

Screws

4. Observe the position of the harness connector plugged into the Microprocessor Board.

Control Panel

Microprocessor

1. Disconnect power supply to unit.

2. Remove four security screws securing the Facia.

Harness Connector

Coin Drop

1. Disconnect power to the machine.

Microprocessor

2. Remove the Service Panel.

3. Remove three security torx screws and two pozi-drive screws securing the Control Panel.

Page 52

Disassembly Procedures

WARNI NG

Remove Screws

4. Lift control panel away from the dryer.

To avoid risk of electrical shock, personal injury or death; disconnect power to unit before servicing.

6. Remove two screws securing coin drop to mounting plate.

Remove

Two

Screws

Front Panel

1. Disconnect power to the machine.

2. Remove the Service Panel and Control Panel.

3. Remove two T-20H screws secured into lower flange of the upper Front Panel.

Swing Out

and

Away

5. Remove two 5/16” screws holding coin drop mounting plate.

Remove Screws

4. Remove the two 5/16" hex head screws located in the top right and left front corners of the Front Panel.

Remove Screws

Page 53

Disassembly Procedures

WARNI NG

Remove

Screws

5. Tip the top of the front panel forward and slightly lift the Front Panel at the same time. Then remove the wires from the door switch.

To avoid risk of electrical shock, personal injury or death; disconnect power to unit before servicing.

STACK DRYER SLOPED FRONT (PR MODEL)

Note: The following is exclusive to the PR Model -

sloped Front Dryer.

Microprocessor

1. Disconnect power supply to unit.

Note: Display is larger on “PR” model dryers.

2. Remove four security screws securing facia.

Tip

Forward

& Lift up

Slightly

6. With the wiring removed from the door switch, continue to tilt the front panel forward while lifting the panel to clear the two lower mounting brackets.

3. Remove three screws securing the microprocessor to the Control Console.

4. Remove Control Panel.

5. Disconnect wiring connections.

6. Remove Microprocessor Board and bracket.

STACK DRYER-MN Models

Note: The following section is exclusive to the MN

stack dryers.

Front Panel

1. Disconnect power supply to unit.

2. Remove two front screws.

3. Swing panel out and away from dryer.

Page 54

Disassembly Procedures

WARNI NG

Timer

1. Disconnect power supply to unit.

2. Remove Timer Knob.

3. Remove Front Panel Screws.

To avoid risk of electrical shock, personal injury or death; disconnect power to unit before servicing.

5. Remove screws securing Front Panel.

6. Remove screws securing Selector Switch.

7. Disconnect wires on Selector Switch. Note: Make note of wire location

Push-To-Start Switch

1. Disconnect power supply to unit.

2. Unscrew knurl nut

4. Remove two screws securing Timer to Front Panel.

5. Disconnect wires on Timer.

Note: Make note of wire locations.

Selector Switch

1. Disconnect power supply to unit.

2. Remove Timer Knobs (for both dryers)

3. Remove four screws securing Facia to Front Panel.

4. Remove Selector Switch Knob.

3. Remove Front Panel.

4. Disconnect wires on switch.

Machine-In-Use Light

1. Disconnect power supply to unit.

2. Remove Front Panel.

3. Slide light off lens.

4. Disconnect wire connection.

Page 55

Disassembly Procedures

WARNI NG

STACK DRYER-FLAT FRONT MODELS

Note: The following section is exclusive to the “Flat

Front Model” stack dryers.

Front Panel

1. Disconnect power supply to unit.

2. Remove two security screws securing Front Panel.

To avoid risk of electrical shock, personal injury or death; disconnect power to unit before servicing.

Front Shroud Assembly

1. Disconnect power supply to unit.

2. Remove Front Panel.

3. Swing Front Panel out and away from dryer. Note: Observe the wire placement connected to

components attached to the Front Panel.

Microprocessor

1. Disconnect power supply to unit.

2. Remove four security screws securing facia.

3. Remove three screws securing the microprocessor to the Front Panel.

4. Remove screws(T25 H) securing Front Panel.

5. Disconnect wiring connections.

6. Remove Microprocessor Board and bracket.

3. Remove screws securing cabinet brace.

4. Remove four outer screws.

Page 56

Disassembly Procedures

WARNI NG

Motor & Heater Relays

1. Disconnect power supply to unit.

2. Remove Cabinet Brace.

To avoid risk of electrical shock, personal injury or death; disconnect power to unit before servicing.

Note: Heater Relays are used ONLY on “MDE” model

dryers (Electric Models).

3. Remove screws securing relay bracket.

4. Disconnect wires to relays.

Page 57

Appendix A

Page 58

PROGRAMMING PROCEDURES

How to Use the Keypads to Program the Controls

1. The

2. The

3. The

START OPERATING SET-UP

Whites & Colors

change information in the programming codes, permitting adjustment. Pressing the keypad will change the characters by one (1). Rapid adjusting is possible by holding the keypad down.

Permanent Press

through the programmed codes. Holding the keypad down will automatically advance through programs at a rate of one (1) per second.

Delicates

deselect options. This is an selection.

keypad is used to select or

keypad is used to

keypad will advance you

"OFF"

"ON"

NOTE:

Before proceeding please note that an owner can choose to uncrate a new commercial machine, hook it up, plug it in and have a unit which operates.

PD units are pre-set at the factory for fixed cycle price with top off.

PR and PN units are pre-set for free cycle operation so they can be run without readers or coins.

The appliance is programmed at the factory as follows:

5 minutes dry time/quarter (Coin 1).

$1.50 dry price (Fixed cycle with top off-PD/ PS models).

$0.00 dry price (Fixed cycle-PR/PN models).

PD and PS Models (Single Load Dryer): Insert access door key, turn, and lift to remove access door.

PD Models (Stacked Dryers): Insert access panel key and turn.

PN Models: Insert service key and turn to "PROGRAM."

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 manual set-up card is not available, manual setup mode can be entered by removing connector AA1 on the circuit board.

CAUTION: The console must not be opened unless power is first removed from the dryer.

To access connector AA1, remove power, open console, disconnect plug on AA1, close console, apply power to dryer. The dryer is now in the set-up mode.

GENERAL USER INFORMATION

Blank Display: This condition indicates that the

appliance is inoperative.

"0" Minutes Showing in Display: This condition indicates that the appliance cannot be operated. Coins dropped during this condition will be stored in escrow, but cannot be used until normal operation is restored by opening and closing the door. If the door switch fails, recovery from this condition is impossible without service.

Warm Start - After Power Failure: After a delay of a few seconds, the appliance is restored to the state that existed at the time of power failure. "Reselect Cycle" will flash in the display. Select fabric setting to restart dryer.

Pricing

After the door is opened, following the completion of a cycle, the display indicates the cycle price (unless set for free operation). As coins or debit inputs arrive, the display will change to lead the user through the intiation of a cycle.

There are four (4) types of pricing.

Page 59

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 when 99 minutes is in the display.

Accumulator Pricing

If the price is equal to the value of coin 1, then accumulator mode is in effect (stacked models also require Fixed Cycle with Top Off option to be selected). Cycle time can be purchased one coin at a time (PD and PS models) up to the maximum time of 99 minutes. While in accumulator pricing, stacked machines will credit all money to a cycle with a single button press.

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 machine. No credit is given for coins or debit inputs entered when the control is displaying 99 minutes.

PR Models: 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:

top off price = top off time

full cycle price = full cycle length

Penny increment offset is not applied to top off purchases.

Free Cycles and PN Models

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.

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. Connection to the control board is by means of a Molex brand connector (housing and terminals.) See your distributor for appropriate connector part numbers.

Page 60

SET UP CODES

The PERMANENT PRESS keypad will advance from code to code. The WHITES & COLORS keypad will change the code value. The delicate keypad will select or deselect options.

Note: On all stacked dryer models, programming selections apply to both dryers. Stacked dryer selections

are accessed by pressing the LOWER DRYER keypads.

FOR PS, PR & PN MODELS ONLY: The default codes are the same for setting up the "PD" models. However, additional information may be given that could affect the set up.

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.

CODE EXPLANATION

606 6 REGULAR CYCLE PRICE

06 Represents the number of coins. See VALUE OF COIN 1 and COIN 2. Ad-

justable from 0-39 by pressing the set for six (6) quarters = $1.50.

Press

Permanent Press keypad once to advance to next code.

PS models ONLY: Represents the number of pushing actuations of the coin slide to start the machine. We recommend "601" setting.

Whites & Colors keypad. Presently

705 7 REGULAR DRYING MINUTES PER COIN

05 Represents the number of minutes per coin. Presently set for 5 minutes

per coin. Example: Six (6) quarters times (x) five (5) minutes = 30 minutes. Adjustable from 1-99 minutes by pressing the Whites & Colors keypad.

Press Permanent Press keypad once to advance to next code.

PN MODELS ONLY: Represents the cycle length for free cycles. An ex ample: "730" represents 30 minutes.

PS MODELS ONLY: Represents the total number of minutes per slide. Example: "748" represents 48 minutes.

800 8 TYPE OF DRY TIME

00 Fixed cycle with top off. For detailed description see "General Use Infor-

mation." Use Delicates keypad to make this selection.

FC Fixed cycle. For detailed description see "General User Information." Use

Delicates keypad to make this selection.

Press Permanent Press keypad once to advance to next code.

900 9 CYCLE COUNTER OPTION

This option is either Selected "ON" or Not Selected "OFF."

00 Not Selected or "OFF." 0C Selected or "ON." Press Delicates keypad three consecutive times to

select "ON." Once this option is selected, you cannot go back to "00."

Press

Permanent Press

keypad once to advance to next code.

Page 61

CODE EXPLANATION

1.00 1. MONEY COUNTER OPTION

This option is either Selected "ON" or Not Selected "OFF."

00 Not Selected or "OFF." 0C Selected or "ON."

C0 Press

2.00 2. SPECIAL PRICING OPTION.

00 Not Selected or "OFF." SP Selected or "ON." Press

Steps "3." thru "9." codes are skipped if mode "2.00" is selected.

3.06 3. SPECIAL CYCLE PRICE

06 Represents the number of coins. See value of coin 1 and coin 2.

Delicates

consecutive times to remove (Not Selected) "OFF." Reset counter by going from "OFF" to "ON." To select "ON" and not be able to be deselected, first select "ON," then within two seconds, press

Delicates

Press

Permanent Press

This option is either Selected "ON" or Selected "OFF."

keypad three consecutive times to select "ON" and three

twice,

Permanent Press

keypad once to advance to next code.

Delicates

Press

Permanent Press

Adjustable from 00 to 39 by pressing the Presently set for six (6) quarters = $1.50.

keypad once to advance to next code.

once, and shut the service access door.

keypad once for this selection.

Whites & Colors

keypad.

Press

Permanent Press

PR &PN MODELS ONLY: Presently set for 0 quarters.

4.05 4. SPECIAL DRYING MINUTES PER COIN

05 Represents the number of minutes per coin. Presently set for 5 minutes

per coin. Example: Six (6) quarters times (x) five (5) minutes = 30 minutes. Adjustable from 1-99 minutes, by pressing the keypad.

Press

Permanent Press

PN MODELS ONLY: Represnet the cycle length for free cycles. As example: "730" represents 30 minutes.

5.00 5. MINUTES

00 This selection, "MINUTES," is the time of day clock. Select 00-59 minutes

by pressing

Press

6.00 6. HOURS

00 This selection, "HOUR," is the of time of day clock in hours; using

military time (24 hour clock). Select from 00 to 23 by pressing the

Whites & Colors

Permanent Press

keypad.

keypad once to advance to the next code.

keypad.

keypad once to advance to the next code.

Whites & Colors

Press

Permanent Press

keypad once to advance to the next code.

Page 62

CODE EXPLANATION

7.00 7. STARTING OF SPECIAL PRICING HOUR

8.00 8. STOPPING OF SPECIAL PRICING DAYS

9.10 9. SPECIAL PRICE DAYS

00 This selection, "HOUR," is the of time of day clock in hours; using

military time (24 hour clock). Select from 00 to 23 by pressing the

Whites & Colors

Press

Permanent Press

00 This is the selection of the hours using military time (24 hour clock).

Select 0 to 23 hours by pressing

Press

Permanent Press

10 Represents the day of the week and if special pricing is to occur on that

day. The middle digit is the day of the week, and the last digit is "0" for not selected or "S" for selected.

For example:

9.10 Special pricing not selected.

9.1S Special pricing selected for that individual day.

keypad.

keypad once to advance to the next code.

Whites & Colors

Pressing the

Press You must exit on current day of the week that it is for the special pricing to occur on the correct day. Refer to chart for Special Price Days.

Press

A.00 A. VAULT VIEWING.

Once selected (SC), this option may be deselected (00). 00 Not Selected or "OFF." SC Selected or "ON."

Press

cycle counter will be viewable when the vault is opened. If "00"

is selected, the service door will need to be opened to view the

money and/or cycle counter.

Press

b.05 b. VALUE OF COIN 1 (QUARTER DROP)

05 Represents the number of nickels (5 cent increments) given to the

value of each coin in code 600 "regular cycle price" or 3.00 "special

cycle price."

For example:

b. 05 equals five (5) nickels or one (1) quarter.

b. 20 equals twenty (20) nickels or one ($1.00) dollar.

Delicates

keypad once to select "0" and once for "S."

Whites & Colors

Permanent Press

Delicates

keypad once to select "SC," the money and/or

Permanent Press

keypad to advance to the next day of the week.

keypad once to advance to the next code.

keypad once to advance to next code.

Press

Whites & Colors

PS models ONLY: Represents the total vend price in nickels.

Example: b30 is equal to $1.50

Press

Permanent Press

keypad to advance from 1 to 199 in nickels.

keypad once to advance to next code.

Page 63

CODE EXPLANATION

C.20 00 VALUE OF COIN 2 (CANADIAN DOLLAR DROP)

20 Represents the number of nickels (5 cent increments) given to the

value of each

For example: c. 20 equals twenty (20) nickels or one (1) Canadian dollar. c. 40 equals forty (40) nickels or two (2) Canadian dollars.

Press

Whites & Colors

Press

Permanent Press

d.00 d. COIN SLIDE OPTION.

Once selected (CS) this option may be deselected (00). 00 Not Selected or "OFF." CS Selected or "ON."

Press

Delicates

"CS" for models not using a coin drop.

Press

Permanent Press

program mode.

E.00 E. Add coins option.

Once selected, the (AC) option may be deselected (00). This option

causes the customer display to show the number of coins (coin 1) to

enter, rather than the dollar-and-cents amount. 00 Not Selected or "OFF." AC Selected or "ON."

Canadian dollar drop in the dollar coin slot.

keypad to advance from 1 to 199 in nickels.

keypad once to advance to the next code.

keypad once to select "00" when coin drop is used, and

keypad once to advance to the beginning of the

Press

Delicates

PR MODELS ONLY: In enhance debit mode, this option is not selectable.

Press

Permanent Press

J.Cd J. Coins/Debit Option.

Cd Both coin and debit selected. C_ Coins selected. _d Debit card option selected

PN MODELS ONLY: Must be set for _d.

Press

Delicates

Ed Enhanced debit is self-selected when a Genration 2 card reader is installed in

the dyrer. The Ed option cannot be manually slected or deselected. Not

avaiable on stacked dryer units.

Press

Permanent Press

keypad three (3) consecutive times for this selection.

keypad once to advance to next code.

Page 64

CODE EXPLANATION

L.00 L. Price Suppression Option.

Once selected (PS), this option may be deselected (00). Bypass "Available" rather than the amount of money to add. (Used mainly in

debit installation.) 00 Not Selected or "OFF." PS Selected or "ON."

Press

n.CE n. Clear Escrow Option.

When "CE" is selected, the amount remaining in escrow will be "cleared,"

30 minutes after the end of the cycle or the last coin is deposited, which-

ever is later. 00 Not selected or "OFF." CE Selected or "ON."

Press

U.00 U. Penny Increment Offset

00 Thisrepresnets the penny increment price offfset used in Generation 2

(enhanced debit) PR models choose from 0-4 pennies by pressing the

White & Colors

Delicates

. This option causes the customer display to show

Permanent Press

Delicates

keypad once to select "00" or "CE."

Permanent Press

keypad.

keypad once to advance to next code.

keypad once to advance to the next cycle.

Not available on stacked units.

Press

Permanent Press

End of set-up procedures.

Exit from set-up mode.

PD/PS Models Reinstall access door. PN Models Turn service key to "Run". PR Models Remove power, open console, re-insert plug in AA1, close console and apply

power.

keypad once to advance to the next cycle.

Page 65

SPECIAL PRICING DAYS

In reference to the "Special Price Days," the following will appear when programming that sequence: (The number "5" is read as an "S" to represent special pricing in effect.)

Not Selected Selected Day Number Day of Week

9.10 9.15 Day 1 Sunday

9.20 9.25 Day 2 Monday

9.30 9.35 Day 3 Tuesday

9.40 9.45 Day 4 Wednesday

9.50 9.55 Day 5 Thursday

9.60 9.65 Day 6 Friday

9.70 9.75 Day 7 Saturday

Note: Remember you must show current day of week before proceeding to next code.

Cycles and Money Counter Options

The following will appear if you selected "0C" in the cycle counter option "900." This is a "View Only" and cannot be altered. When cycle counter is selected, the numbers will "flash" in sequence.

Example:

100

200

Represents number of cycles in HUNDREDS Represents number of cycles in ONES

102 = 200 225 = 25 Total = 225 Cycles

Press Permanent Press keypad once to advance to next code.

The following will appear if you selected "0C" in the money counter option "1.0C." This is a "VIEW ONLY" and cannot be altered. The money counter can be reset by going to OFF (00) and ON (0C).

When money counter option is selected, the numbers will "flash" in sequence.

Example:

300 400 500

Represents number of cycles in HUNDREDS Represents number of cycles in ONES Number of CENTS

301 = $100.00 468 = 68.00 575 = .75 Total = $168.75

Page 66

DRYER DIAGNOSTIC MODE

This mode is entered by depressing DELICATES for one second while in any of the set-up codes one through six (or while dAS displays if operating with Maytag Data Acquisition setup) or with a diagnostic code present. Diagnostic codes are cleared on entry and all display segments should flash. If a diagnostic code persists, it must be corrected before the diagnostic cycle may be executed.

All Single Load Models:

With all segments flashing, the diagnostic cycle is started by depressing the PERMANENT PRESS key pad. The cycle consists of seven minutes of heat and 1 minute of cooldown. The WHITES & COLORS key pad will increment the diagnostic cycle minutes up to 99, then roll over to 2 minutes. The DELICATES key pad will cancel this cycle and exit the diagnostic mode.

Dryer Help Mode

Stacked Models Only:

There are 2 procedures to initiate cycle activity from diagnostic mode for these models:

1. Upper Dryer Field Diagnostic Cycle – With the entire display flashing, the cycle is started by pressing the UPPER DRYER PERMANENT PRESS key pad. The cycle consists of seven minutes of heat and one minute of cool down. The UPPER DRYER WHITES & COLORS key pad will increment the diagnostic cycle minutes up to 99, then roll over to 2 minutes. Pressing the LOWER DRYER DELICATES key pad will cancel this cycle and exit the diagnostic mode.

2. Lower Dryer Field Diagnostic Cycle – With entire display flashing, the cycle is started by pressing the LOWER DRYER PERMANENT PRESS key pad. The cycle consists of seven minutes of heat and one minute of cool down. The LOWER DRYER WHITES & COLORS key pad will increment the diagnostic cycle minutes up to 99, then roll over to 2 minutes. Pressing the LOWER DRYER DELICATES key pad will cancel this cycle and exit the diagnostic mode.

The Help Mode is entered by pressing the dAS displays if operating with Maytag Data Acquisition set up). In help mode, the software revision is displayed in the digits. Press the

In help mode, other display symbols and elements are mapped to reflect the state of various input and outputs as follows:

Whites & Colors

DISPLAY DESCRIPTION

* Low voltage present (below 90VAC) Circle above digit Door closed & 140° thermostat closed OR Motor sensed running AIR Heater/gas valve relay on FLUFF Motor relay on

Upper Dryer Only – Upper Half Of Display

Circle above digit Upper dryer door closed COOL Upper dryer 140° thermostat closed OR Upper dryer heater relay on & Upper dryer motor relay on

Lower Dryer Only – Lower Half Of Display

* Low voltage present (below 90VAC)

Circle above digit Lower dryer door closed COOL Lower dryer 140° thermostat closed OR Lower dryer heater relay on & Lower dryer motor relay on

key at anytime to exit help mode.

Stacked Dryer Models

Whites & Colors

Single Load Dryers

Upper dryer motor sensed running

Lower dryer motor sensed running

keypad while in special pricing option, step 2.XX (or while

Maytag MDE-MDG21PRA, MLE-MLG23PRF, MDE-MDG21PNA, MDE-MDG21PDA, MLE-MLG23PRA User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual