Alliance Laundry Systems ADE32FSS431NN22, ADE3TRWS431AW01, ADE32FSS541RN01, ADE41FSS171TN03, ADG3TFWS301AW01 Troubleshooting Manual

...

Alliance Laundry Systems ADE32FSS431NN22, ADE3TRWS431AW01, ADE32FSS541RN01, ADE41FSS171TN03, ADG3TFWS301AW01, ADG3TRWS301AW01, ADG32FSS301AN01, ADG41FSS111TN03, ADE3TFWS431AW01, LEZ27ALG3018, FEN16AWG4018, LGS37AWG3080, LEZ67AQF1702, LES17AGF4500, BDE30FGS171CW01, BDG30FGS111CW01, CDE3LRGS171CW01, CDE4BFGS171CW01, CDG3LRGS111CW01, CDG4BFGS111CW01, CEZ68A*F1702, ADE3TRWS431NW22, ADE32FSS431AN01, AEZ17ALF1702, AEZ28ALF1702, AEZ68ALF1702, AGZ17ALF1102, AGZ28ALF1102, AGZ68ALF1102, CEZ68ALF1702, CGZ68ALF1102, FDE3TRGS401NW22, FEN16ALG4018, FEN17ALG3018, FEN17ALG4018, FES16ALG4018, FES17ALF3300, FES17ALF4350, FEU17ALF1702, FEZ17ALF1702, FGN16ALM3013, FGN17ALM3013, FGS17ALF3060, FGZ17ALF1102, LDE3TRWS331TW05, LDG3TRWS111TW05, LEB07ALF1709, LED17ALF1700, LEG37ALF4350, LEH37ALF3300, LEK37ALF4350, LEN27ALG3008, LEN27ALG3018, LEN27ALG4008, LEN27ALG4018, LEN27ALG99M3, LEN37ALG3018, LEN37ALG4018, LES17ALF3000, LES17ALF3007, LES17ALF3022, LES17ALF4500, LES17ALM4588, LES27ALG3018, LES27ALG4000, LES27ALG4500, LES27ALG4518, LES27ALG4018, LES28ALG4018, LES33ALF4562, LES37ALF3000, LES37ALF3028, LES37ALF3300, LES37ALF3327, LES37ALF4350, LES37ALF5412, LES37ALG3018, LES37ALG4018, LET57ALF1700, LET67ALF1700, LET68ALF1700, LEY47ALF1709, LEZ27ALF1702, FEN17AWG3018, FEN17AWG4018, FES16AWG4018, FES17AWF3300, FES17AWF4350, FEU17AWF1702, FEZ17AWF1702, FGN16AWM3013, FGN17AWM3013, FGS17AWF3060, FGZ17AWF1102, LEB07AWF1709, LED17AWF1700, LEG37AWF4350, LEH37AWF3300, LEK37AWF4350, LEN27AWG3008, LEN27AWG3018, LEN27AWG4008, LEN27AWG4018, LEN27AWG99M3, LEN37AWG3018, LEN37AWG4018, LES17AWF3000, LES17AWF3007, LES17AWF3022, LES17AWF4500, LES17AWM4588, LES27AWG3018, LES27AWG4000, LES27AWG4500, LES27AWG4518, LES27AWG4018, LES28AWG4018, LES33AWF4562, LES37AWF3000, LES37AWF3028, LES37AWF3300, LES37AWF3327, LES37AWF4350, LES37AWF5412, LES37AWG3018, LES37AWG4018, LET57AWF1700, LET67AWF1700, LET68AWF1700, LEY47AWF1709, LEZ27AWF1702, LEZ27AWG3018, LEZ27AWG4018, LEZ37AWF1702, LEZ37AWF3000, LEZ37AWG3018, LEZ37AWG4018, LEZ37AWG5618, LEZ57AWF1702, LEZ67AWF1702, LGG37AWF3058, LGH37AWF1182, LGH37AWF5423, LGK37AWF3058, LGK37AWF3060, LGN27AWM3008, LGN27AWM3013, LGN37AWM3013, LGS17AWF3020, LGS17AWF3081, LGS17AWK1180, LGS17AWM3020, LGS17AWM3082, LGS27AWM3013, LGS27AWM3080, LGS37AWF3000, LGS37AWF3022, LGS37AWF3028, LGS37AWF3058, LGS37AWF3060, LGS37AWF3080, LGS37AWF5412, LGS37AWF5423, LGS37AWG3013, LES17AGM4588, LES27AGG3018, LES27AGG4000, LES27AGG4500, LES27AGG4518, LES27AGG4018, LES28AGG4018, LES33AGF4562, LES37AGF3000, LES37AGF3028, LES37AGF3300, LES37AGF3327, LES37AGF4350, LES37AGF5412, LES37AGG3018, LES37AGG4018, LET57AGF1700, LET67AGF1700, LET68AGF1700, LEY47AGF1709, LEZ27AGF1702, LEZ27AGG3018, LEZ27AGG4018, LEZ37AGF1702, LEZ37AGF3000, LEZ37AGG3018, LEZ37AGG4018, LEZ37AGG5618, LEZ57AGF1702, LEZ67AGF1702, LGG37AGF3058, LGH37AGF1182, LGH37AGF5423, LGK37AGF3058, LGK37AGF3060, LGN27AGM3008, LGN27AGM3013, LGN37AGM3013, LGS17AGF3020, LGS17AGF3081, LGS17AGK1180, LGS17AGM3020, LGS17AGM3082, LGS27AGM3013, LGS27AGM3080, LGS37AGF3000, LGS37AGF3022, LGS37AGF3028, LGS37AGF3058, LGS37AGF3060, LGS37AGF3080, LGS37AGF5412, LGS37AGF5423, LGS37AGG3013, LGS37AGG3080, LGS37AGM3013, LGS37AGM3080, LGS38AGM3013, LGS38AGM3020, LGS40AGM3020, LGT57AGF1100, LGT68AGF1100, LGY47AGF1109, LGZ27AGF1102, LGZ27AGM3013, LGZ37AGF1102, LGZ37AGF3000, LGZ37AGG3013, LGZ37AGM3013, LGZ57AGF1102, LGZ67AGF1102, LEZ27ALG4018, LEZ37ALF1702, LEZ37ALF3000, LEZ37ALG3018, LEZ37ALG4018, LEZ37ALG5618, LEZ57ALF1702, LEZ67ALF1702, LGG37ALF3058, LGH37ALF1182, LGH37ALF5423, LGK37ALF3058, LGK37ALF3060, LGN27ALM3008, LGN27ALM3013, LGN37ALM3013, LGS17ALF3020, LGS17ALF3081, LGS17ALK1180, LGS17ALM3020, LGS17ALM3082, LGS27ALM3013, LGS27ALM3080, LGS37ALF3000, LGS37ALF3022, LGS37ALF3028, LGS37ALF3058, LGS37ALF3060, LGS37ALF3080, LGS37ALF5412, LGS37ALF5423, LGS37ALG3013, LGS37ALG3080, LGS37ALM3013, LGS37ALM3080, LGS38ALM3013, LGS38ALM3020, LGS40ALM3020, LGT57ALF1100, LGT68ALF1100, LGY47ALF1109, LGZ27ALF1102, LGZ27ALM3013, LGZ37ALF1102, LGZ37ALF3000, LGZ37ALG3013, LGZ37ALM3013, LGZ57ALF1102, LGZ67ALF1102, MDE3TRWS331TW06, MDG3TRWS111TW06, ZDE30RGS171CW01, ZDE3LRGS171CW01, ZDE41FSS171CN01, ZDE4BFGS171CW01, ZDE4BRGS171CW01, ZDG30RGS111CW01, ZDG3LRGS111CW01, ZDG41FSS111CN01, ZDG4BFGS111CW01, ZDG4BRGS111CW01, AEZ17AWF1702, AEZ28AWF1702, AEZ68AWF1702, AGZ17AWF1102, AGZ28AWF1102, AGZ68AWF1102, CEZ68AWF1702, CGZ68AWF1102, LGG37AQF3058, LGH37AQF1182, LGH37AQF5423, LGK37AQF3058, LGK37AQF3060, LGN27AQM3008, LGN27AQM3013, LGN37AQM3013, LGS17AQF3020, LGS17AQF3081, LGS17AQK1180, LGS17AQM3020, LGS17AQM3082, LGS27AQM3013, LGS27AQM3080, LGS37AQF3000, LGS37AQF3022, LGS37AQF3028, LGS37AQF3058, LGS37AQF3060, LGS37AQF3080, LGS37AQF5412, LGS37AQF5423, LGS37AQG3013, LGS37AQG3080, LGS37AQM3013, LGS37AQM3080, LGS38AQM3013, LGS38AQM3020, LGS40AQM3020, LGT57AQF1100, LGT68AQF1100, LGY47AQF1109, LGZ27AQF1102, LGZ27AQM3013, LGZ37AQF1102, LGZ37AQF3000, LGZ37AQG3013, LGZ37AQM3013, LGZ57AQF1102, LGZ67AQF1102, AEZ17AGF1702, AEZ28AGF1702, AEZ68AGF1702, AGZ17AGF1102, AGZ28AGF1102, AGZ68AGF1102, CEZ68AGF1702, CGZ68AGF1102, FEN16AGG4018, FEN17AGG3018, FEN17AGG4018, FES16AGG4018, FES17AGF3300, FES17AGF4350, FEU17AGF1702, FEZ17AGF1702, FGN16AGM3013, FGN17AGM3013, FGS17AGF3060, FGZ17AGF1102, LEB07AGF1709, LED17AGF1700, LEG37AGF4350, LEH37AGF3300, LEK37AGF4350, LEN27AGG3008, LEN27AGG3018, LEN27AGG4008, LEN27AGG4018, LEN27AGG99M3, LEN37AGG3018, LEN37AGG4018, LES17AGF3000, LES17AGF3007, LES17AGF3022, LGS37AWM3013, LGS37AWM3080, LGS38AWM3013, LGS38AWM3020, LGS40AWM3020, LGT57AWF1100, LGT68AWF1100, LGY47AWF1109, LGZ27AWF1102, LGZ27AWM3013, LGZ37AWF1102, LGZ37AWF3000, LGZ37AWG3013, LGZ37AWM3013, LGZ57AWF1102, LGZ67AWF1102, AEZ17AQF1702, AEZ28AQF1702, AEZ68AQF1702, AGZ17AQF1102, AGZ28AQF1102, AGZ68AQF1102, CEZ68AQF1702, CGZ68AQF1102, FEN16AQG4018, FEN17AQG3018, FEN17AQG4018, FES16AQG4018, FES17AQF3300, FES17AQF4350, FEU17AQF1702, FEZ17AQF1702, FGN16AQM3013, FGN17AQM3013, FGS17AQF3060, FGZ17AQF1102, LEB07AQF1709, LED17AQF1700, LEG37AQF4350, LEH37AQF3300, LEK37AQF4350, LEN27AQG3008, LEN27AQG3018, LEN27AQG4008, LEN27AQG4018, LEN27AQG99M3, LEN37AQG3018, LEN37AQG4018, LES17AQF3000, LES17AQF3007, LES17AQF3022, LES17AQF4500, LES17AQM4588, LES27AQG3018, LES27AQG4000, LES27AQG4500, LES27AQG4518, LES27AQG4018, LES28AQG4018, LES33AQF4562, LES37AQF3000, LES37AQF3028, LES37AQF3300, LES37AQF3327, LES37AQF4350, LES37AQF5412, LES37AQG3018, LES37AQG4018, LET57AQF1700, LET67AQF1700, LET68AQF1700, LEY47AQF1709, LEZ27AQF1702, LEZ27AQG3018, LEZ27AQG4018, LEZ37AQF1702, LEZ37AQF3000, LEZ37AQG3018, LEZ37AQG4018, LEZ37AQG5618, LEZ57AQF1702 Troubleshooting Manual

Download

Page 1

Homestyle

Dryers

Refer to Page 6 for Model Numbers

Troubleshooting

www.comlaundry.com

DRY684C

Part No. 505894R2

March 2012

Page 2

Page 3

Table of

Section 1 – Safety Information

Locating an Authorized Servicer ..................................................... 4

Contents

Section 2 – Introduction

Customer Service ............................................................................ 5

Nameplate Location ........................................................................ 5

Model Identification ........................................................................ 6

How Your Dryer Works .................................................................. 7

Section 3 – Troubleshooting

1. Dryer Motor Does Not Run ...................................................... 9

2. Dryer Stops in Cycle; Quits After the First Few Loads;

Has a Burning Smell; Cycles On Motor Thermal Protector ..... 11

3. Dryer Motor Runs But Cylinder Does Not Turn ...................... 12

4. Dryer Motor Does Not Stop ..................................................... 13

5. Dryer Runs Only When Door is Open ..................................... 14

6. Dryer Heating Assembly Does Not Heat or Burner Does

Not Ignite .................................................................................. 15

7. Igniter Does Not Glow (Gas Supply Sufficient) –

Gas Dryer Models ..................................................................... 17

8. Burner Ignites and Goes Out Repeatedly –

Gas Dryer Models ..................................................................... 18

9. Igniter Glows But Burner Does Not Ignite –

Gas Dryer Models ..................................................................... 19

10. Dryer Heater Assembly or Burner Shuts Off Prematurely ....... 20

11. Dryer Heater Assembly or Burner Repeatedly Cycles

Off On Limit Thermostat .......................................................... 21

12. Dryer Heater Assembly or Burner Does Not Shut Off ............. 23

13. Clothes Do Not Dry in Dryer ................................................... 24

14. Timer Does Not Advance in Automatic Cycle ......................... 25

15. Clothes Are Too Hot When Removed From Dryer .................. 26

16. Excessive Chattering or Vibrating Noise in Dryer ................... 27

17. Excessive Humming or Whistling Noise in Dryer ................... 28

18. Ignition Control Flashes ........................................................... 29

505894

Section 4 – Adjustments

19. Leveling Legs ........................................................................... 31

20. Burner Flame (Gas Models) ..................................................... 32

Section 5 – Test Procedures

21. Timer Contacts ......................................................................... 34

22. Fabric Selector Switch .............................................................. 35

23. Drive Motor .............................................................................. 36

24. Motor Switch ............................................................................ 39

25. Burner System Operation ......................................................... 41

26. Electrical Circuit To Ignition System (Gas Models) ................ 43

Page 4

27. Gas Valve Coils Check (Gas Models) ...................................... 43

28. Sensor Check (Gas Models) ..................................................... 44

29. Igniter Check (Gas Models) ..................................................... 44

30. Ignition Control Grounding Check

(Silicon Nitride Ignition) .......................................................... 44

31. Thermal Fuse (Electric Models) ............................................... 44

32. Heater Assembly (Electric Models) ......................................... 45

33. Cycling or Limit Thermostat .................................................... 45

34. Door Switch .............................................................................. 45

Section 6 – Internal Wiring of Dryer Motor Switch

505894

Page 5

Section 1

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

• Do not repair or replace any part of the machine or attempt any servicing unless specifically recommended or published in this Service Manual and that you understand and have the skills to carry out.

• Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the machine is properly grounded and to reduce the risk of fire, electric shock, serious injury, or death.

W284

WARNING

Safety Information

Throughout this manual and on machine decals, you will find precautionary statements (“CAUTION,” “WARNING” and “DANGER”) followed by specific instructions. These precautions are intended for the personal safety of the operator, user, servicer, and those maintaining the machine.

DANGER

Danger indicates an imminently hazardous situation that, if not avoided, will cause severe personal injury or death.

WARNING

Warning indicates a hazardous situation that, if not avoided, could cause severe personal injury or death.

CAUTION

Caution indicates a hazardous situation that, if not avoided, may cause minor or moderate personal injury or property damage.

Additional precautionary statements (“IMPORTANT” and “NOTE”) are followed by specific instructions.

IMPORTANT

The word “IMPORTANT” is used to inform the reader of specific procedures where minor machine damage will occur if the procedure is not followed.

NOTE

The word “NOTE” is used to communicate installation, operation, maintenance or servicing information that is important but not hazard related.

In the interest of safety, some general precautions relating to the operation of this machine follow.

505894 3

Page 6

Section 1 Safety Information

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the dryer(s) before servicing.

• Close gas shut-off valve to gas dryer(s) before servicing.

• Never start the dryer(s) with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the dryer is properly grounded.

W001R1

WARNING

Repairs that are made to your products by unqualified persons can result in hazards due to improper assembly or adjustments subjecting you, or the inexperienced person making such repairs, to the risk of serious injury, electrical shock, or death.

W007

WARNING

If you or an unqualified person perform service on your machine, you must assume the responsibility for any personal injury or property damage which may result. The manufacturer will not be responsible for any injury or property damage arising from improper service and/or service procedures.

W286

WARNING

NOTE: The WARNINGS and IMPORTANT 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 machine.

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

Locating an Authorized Servicer

Alliance Laundry Systems is not responsible for personal injury or property damage resulting from improper service. Review all service information before beginning repairs.

Warranty service must be performed by an authorized technician, using authorized factory parts. If service is required after the warranty expires, Alliance Laundry Systems also recommends contacting an authorized technician and using authorized factory parts.

4 505894

Page 7

Section 2

D412PE1A

Nameplate

Introduction

Customer Service

If literature or replacement parts are required, contact the source from whom the machine was purchased or contact Alliance Laundry Systems at +1 (920) 748-3950 for the name and address of the nearest authorized parts distributor.

For technical assistance, call +1 (920) 748-3121.

Nameplate Location

When calling or writing about your product, be sure to mention model and serial numbers. Model and serial numbers are located on nameplate(s) as shown.

505894 5

Page 8

Section 2 Introduction

Model Identification

Information in this manual is applicable to these dryers:

ADE3TFWS431AW01 ADE3TRWS431AW01 ADE3TRWS431NW22 ADE32FSS431AN01 ADE32FSS431NN22 ADE32FSS541RN01 ADE41FSS171TN03 ADG3TFWS301AW01 ADG3TRWS301AW01 ADG32FSS301AN01 ADG41FSS111TN03 AEZ17A*F1702 AEZ28A*F1702 AEZ68A*F1702 AGZ17A*F1102 AGZ28A*F1102 AGZ68A*F1102 BDE30FGS171CW01 BDG30FGS111CW01 CDE3LRGS171CW01 CDE4BFGS171CW01 CDG3LRGS111CW01 CDG4BFGS111CW01 CEZ68A*F1702 CGZ68A*F1102 FDE3TRGS401NW22 FEN16A*G4018 FEN17A*G3018 FEN17A*G4018 FES16A*G4018 FES17A*F3300 FES17A*F4350 FEU17A*F1702 FEZ17A*F1702 FGN16A*M3013 FGN17A*M3013 FGS17A*F3060 FGZ17A*F1102

* Add Letter To Designate Color. L – Almond W – White Q – Bisque G – Gray

LDE3TRWS331TW05 LDG3TRWS111TW05 LEB07A*F1709 LED17A*F1700 LEG37A*F4350 LEH37A*F3300 LEK37A*F4350 LEN27A*G3008 LEN27A*G3018 LEN27A*G4008 LEN27A*G4018 LEN27A*G99M3 LEN37A*G3018 LEN37A*G4018 LES17A*F3000 LES17A*F3007 LES17A*F3022 LES17A*F4500 LES17A*M4588 LES27A*G3018 LES27A*G4000 LES27A*G4500 LES27A*G4518 LES27A*G4018 LES28A*G4018 LES33A*F4562 LES37A*F3000 LES37A*F3028 LES37A*F3300 LES37A*F3327 LES37A*F4350 LES37A*F5412 LES37A*G3018 LES37A*G4018 LET57A*F1700 LET67A*F1700 LET68A*F1700 LEY47A*F1709

LEZ27A*F1702 LEZ27A*G3018 LEZ27A*G4018 LEZ37A*F1702 LEZ37A*F3000 LEZ37A*G3018 LEZ37A*G4018 LEZ37A*G5618 LEZ57A*F1702 LEZ67A*F1702 LGG37A*F3058 LGH37A*F1182 LGH37A*F5423 LGK37A*F3058 LGK37A*F3060 LGN27A*M3008 LGN27A*M3013 LGN37A*M3013 LGS17A*F3020 LGS17A*F3081 LGS17A*K1180 LGS17A*M3020 LGS17A*M3082 LGS27A*M3013 LGS27A*M3080 LGS37A*F3000 LGS37A*F3022 LGS37A*F3028 LGS37A*F3058 LGS37A*F3060 LGS37A*F3080 LGS37A*F5412 LGS37A*F5423 LGS37A*G3013 LGS37A*G3080 LGS37A*M3013 LGS37A*M3080

LGS38A*M3013 LGS38A*M3020 LGS40A*M3020 LGT57A*F1100 LGT68A*F1100 LGY47A*F1109 LGZ27A*F1102 LGZ27A*M3013 LGZ37A*F1102 LGZ37A*F3000 LGZ37A*G3013 LGZ37A*M3013 LGZ57A*F1102 LGZ67A*F1102 MDE3TRWS331TW06 MDG3TRWS111TW06 ZDE30RGS171CW01 ZDE3LRGS171CW01 ZDE41FSS171CN01 ZDE4BFGS171CW01 ZDE4BRGS171CW01 ZDG30RGS111CW01 ZDG3LRGS111CW01 ZDG41FSS111CN01 ZDG4BFGS111CW01 ZDG4BRGS111CW01

6 505894

Page 9

How Your Dryer Works

DRY1819S

Lint

Filter

Cylinder

Heater

Duct

Blower

Fan

Section 2 Introduction

The dryer uses heated air to dry loads of laundry. When the motor is started, the exhaust fan pulls room temperature air in through louvers at the rear of the dryer and over the heat source (burner flame for gas and heating element for electric). The heated air moves through the heater duct and into the cylinder, where it circulates through the wet load. The air then passes through the lint filter, air duct, and exhaust fan, where it is vented to the outdoors.

505894 7

Page 10

Section 3

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the dryer(s) before servicing.

• Close gas shut-off valve to gas dryer(s) before servicing.

• Never start the dryer(s) with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the dryer is properly grounded.

W001R1

WARNING

Troubleshooting

IMPORTANT: Refer to wiring diagram for aid in testing dryer components.

8 505894

Page 11

1. DRYER MOTOR DOES NOT RUN

Dryer motor does not run.

Is power cord

plugged in?

Plug in cord.

Is electrical

power off or fuse

blown? Check

laundry room for

blown or loose

fuse(s), or open

circuit

breaker(s). The

dryer itself

doesn't have an

electrical fuse.

Yes

Turn power on or replace fuse. Check both fuses for electric models.

Yes

Is loading

door closed?

Close door.

Is door switch

inoperative?

Yes

Test switch and replace if inoperative.

Are motor

starting

functions

inoperative,

does not

start, or motor

just hum?

Refer to Adjustments section to check motor switch and motor windings.

Yes

Is motor

dead,

won't run?

Refer to Adjustments section to check motor switch, motor windings and main windings.

Yes

SWD1706S-a

Yes

Is timer

improperly

set?

Reset timer or try another cycle.

Is timer

inoperative?

Test timer and replace if inoperative.

Yes

Continued on

next page.

SWD1706S-a

Section 3 Troubleshooting

505894 9

Page 12

Section 3 Troubleshooting

SWD1706S-b

Continued from

previous page.

Is power cord

miswired?

Refer to wiring diagram for correct wiring.

Refer to wiring diagram.

Is wiring

broken, loose

or incorrect?

Is motor wire

harness

connection

block loose?

Firmly press connection block onto motor switch.

Remove belt and determine if motor shaft will spin. Replace motor if shaft is locked up.

Is there a bind

in motor

bearing?

Is motor

centrifugal

switch sticky

or plugged

with lint?

Remove dust or lint and spray with a cleaner and lubricant.

Wait two or three minutes for overload protector to reset. If protector cycles repeatedly, refer to next flowchart.

Has motor

overload

protector

cycled?

Yes

SWD1706S-b

DRYER MOTOR DOES NOT RUN (CONTINUED)

10 505894

Page 13

2. DRYER STOPS IN CYCLE; QUITS AFTER THE FIRST FEW LOADS; HAS A BURNING SMELL;

Dryer stops in cycle, quits after first few loads, has burning smell or cycles on motor thermal protector.

Is voltage

incorrect?

Refer to nameplate in door well for correct voltage. Refer to

Installation Instructions (supplied

with unit) for electrical requirements.

Yes

Is clothes

load too

large?

Remove part of load. A normal washer load is a normal dryer load. Maximum load: dryer cylinder one half full of wet clothes.

Yes

Is clothes

cylinder

binding?

Check cylinder for binding and "out of round" condition. Check front and rear bulkheads for warping. Check support rollers for binding. Check cylinder seals and glides for wear or damage. Check for clothes lodged between cylinder baffle and bulkhead.

Yes

Is there

broken, loose

or incorrect

wiring?

Refer to wiring diagram.

Yes

Are motor

switch

functions

inoperative?

Refer to Adjustments section to check switch and windings.

Yes

Is there a

short in

motor

winding?

Is a clothes

item caught in

fan?

Check fan for obstruction.

Yes

SWD1690S

Refer to Adjustments section to check switch and windings.

Yes

SWD1690S

CYCLES ON MOTOR THERMAL PROTECTOR

Section 3 Troubleshooting

505894 11

Page 14

Section 3 Troubleshooting

Dryer motor runs but cylinder does not turn.

Is motor drive

pulley loose?

Tighten pulley.

Is belt

installed on

pulley?

Install belt.

Is cylinder

belt broken?

Replace belt.

Yes

Is clothes

cylinder

binding?

Check cylinder for binding and "out of round" condition. Check front and rear bulkheads for warping. Check cylinder rollers for binding. Check cylinder seals and glides for wear or damage.

Is idler lever

spring broken,

weak or

disconnected?

Replace or reconnect spring.

Yes

Is there oil on

cylinder?

Wipe oil from cylinder.

Yes

Is belt "inside

out" ?

Reinstall belt with ribbed surface against cylinder.

Yes

Is idler arm

binding?

Add grease between idler arm and motor mount. Replace idler arm and bolt if needed.

Yes

Is dryer

overloaded?

Remove some laundry from dryer.

Yes

SWD1691S

Yes

Is the wrong

motor

installed?

Refer to parts manual for correct motor part number.

Is the wrong

belt installed?

Check belt part number against correct part number in parts manual and replace belt if needed.

Is idler arm

bent?

Replace idler arm.

Yes

Is belt routed

on wrong side

of idler lever?

Reroute belt.

Yes

SWD1691S

3. DRYER MOTOR RUNS BUT CYLINDER DOES NOT TURN

12 505894

Page 15

4. DRYER MOTOR DOES NOT STOP

Dryer motor does not stop.

Is wiring to

motor switch

incorrect?

Refer to wiring diagram.

Yes

Is motor

centrifugal

switch sticky

or plugged

with lint?

Remove dust or lint and spray with a cleaner and lubricant.

Yes

Is door switch

inoperative?

Test switch and replace if inoperative.

Yes

SWD1707S

Is timer

inoperative?

Test timer and replace if inoperative.

Yes

SWD1707S

Section 3 Troubleshooting

505894 13

Page 16

Section 3 Troubleshooting

Dryer runs only when door is open.

Is door switch

miswired?

Rewire door switch. Refer to wiring diagram.

Yes

SWD1693S

Replace door switch.

SWD1693S

5. DRYER RUNS ONLY WHEN DOOR IS OPEN

14 505894

Page 17

6. DRYER HEATING ASSEMBLY DOES NOT HEAT OR BURNER DOES NOT IGNITE

Dryer heating assembly does not heat or burner does not ignite.

Is exhaust

system

improper or

inadequate?

Refer to

Installation Instructions

(supplied with unit) for exhaust requirements.

Is exhaust

duct made of

plastic or thin

foil?

Replace with rigid or semirigid metal exhaust duct.

Yes

Is house fuse

blown or

circuit breaker

tripped?

Check fuses or circuit breakers.

Yes

Is limit

thermostat

inoperative?

Test thermostat and replace if inoperative.

Yes

Electric Models:

Is heater

assembly

inoperative?

Test heater assembly and replace if cold Ohms do not read between 9 and 10.5 Ohms.

Yes

Electric

Models: Is thermal fuse inoperative?

Test thermal fuse and replace if inoperative.

Yes

DRY1866S-a

Yes

Is drive motor switch inoperative?

Test switch and replace if inoperative.

Yes

Continued on

next page.

Is temperature selector switch

set at NO HEAT/AIR FLUFF, or

inoperative?

Reset or test switch and replace if inoperative.

Is timer

improperly set

(set in a cool-

down period, or

a no heat

cycle)?

Reset timer. Try another cycle.

Yes

DRY1866S-a

Section 3 Troubleshooting

505894 15

Page 18

Section 3 Troubleshooting

DRY1866S-b

Gas Models: Is

harness properly

connected to gas

controls?

Check harness connections to gas valve coils, sensor and main harness. Reconnect as required.

Test igniter and replace if inoperative. Refer to Test Procedures section.

Gas Models:

Is igniter

inoperative?

Gas Models:

Is sensor

inoperative?

Test sensor and replace if inoperative. Refer to Test Procedures section.

Continued from

previous page.

Ye s

Gas Models:

Is gas flow in

gas orifice restricted?

Clean out gas orifice.

Ye s

Is cycling

thermostat

inoperative?

Test thermostat and replace if inoperative.

Ye s

Is wiring

broken, loose

or incorrect?

Refer to wiring diagram.

Ye s

Is timer

inoperative?

Test timer and replace if inoperative.

Ye s

Gas Models:

Are gas valve

coils

inoperative?

Test coils and replace if inoperative. Refer to Test Procedures section.

Ye s

Gas Models:

Is gas supply

insufficient?

Check gas shut-off valve in dryer and main gas line valve. Open partially closed gas shut-off valve or correct low gas pressure.

Ye s

Some Gas

Models: Is

high limit

thermostat

tripped?

Reset thermostat.

Ye s

DRY1866S-b

DRYER HEATING ASSEMBLY DOES NOT HEAT OR BURNER DOES NOT IGNITE

(CONTINUED)

16 505894

Page 19

7. IGNITER DOES NOT GLOW (GAS SUPPLY SUFFICIENT) – GAS DRYER MODELS

Gas dryer models: Igniter does not glow (gas supply sufficient).

Is there power to

power leads on

valve?

Check timer, thermostats, motor switch and wiring.

Has sensor

failed with

contacts

open?

Ye s

Replace sensor.

Ye s

Is igniter broken

or open?

Replace igniter.

Ye s

DRY1867S

Section 3 Troubleshooting

505894 17

Page 20

Section 3 Troubleshooting

Gas dryer models: Burner ignites and goes out repeatedly.

Is exhaust

system

improper or

inadequate?

Refer to

Installation Instructions

(supplied with unit) for exhaust requirements.

Ye s

Is weather

hood flapper

restricted?

Silicon Carbide

Ignition: Is burner

heat holding

sensor contacts

open?

Replace sensor or correct gas supply problem.

DRY1868S

Refer to

Installation Instructions

(supplied with unit) for exhaust requirements.

Ye s

Is gas supply

insufficient?

Check gas supply and pressure. Make sure gas shut-off valve is turned on.

Is igniter

cracked?

Replace igniter and bracket.

Are gas valve

coils

inoperative or

intermittent?

Check coils and replace appropriate coils. Refer to Dryer Test Procedures section.

Ye s

DRY1868S

8. BURNER IGNITES AND GOES OUT REPEATEDLY – GAS DRYER MODELS

18 505894

Page 21

9. IGNITER GLOWS BUT BURNER DOES NOT IGNITE – GAS DRYER MODELS

Gas dryer models: Igniter glows but burner does not ignite.

Silicon Carbide

Ignition: Did

sensor fail in

closed position?

Replace sensor.

Ye s

Is secondary

coil or holding

coil open?

Is gas supply

insufficient?

Check gas supply and pressure. Make sure gas shutoff valve is turned on.

Ye s

DRY1869S

Replace gas valve (in warranty) or replace coils (out of warranty). Refer to Test Procedures section.

Ye s

Are igniter

and bracket

improperly installed on burner tube

assembly?

Loosen screw and properly position igniter and bracket on burner tube assembly.

Silicon

Carbide

Ignition: Is

sensor

improperly

installed on

burner

housing?

Loosen screw and properly position the sensor on the burner housing.

Ye s

DRY1869S

Section 3 Troubleshooting

505894 19

Page 22

Section 3 Troubleshooting

Dryer heater assembly or burner shuts off prematurely.

Is exhaust

system

improper or

inadequate?

Refer to

Installation Instructions

(supplied with unit) for exhaust requirements.

Yes

Is weather

hood flapper

restricted?

Gas Models: Is

gas supply

insufficient?

Check main gas line shut-off valve. Open partially closed gas shut-off valve or correct low pressure.

Yes

SWD1709S

Refer to

Installation Instructions

(supplied with unit) for exhaust requirements.

Yes

Gas Models: Is

dryer properly

equipped for type

of gas used?

Refer to "Gas Burner Conversion Procedures" supplied in gas burner conversion kit.

Gas Models:

Is burner

flame

improperly

adjusted?

Adjust flame. Refer to Adjustments section.

Cycling off on

limit

thermostat?

Momentarily connect a jumper wire across thermostat terminals. If heater element heats or burner ignites when jumper wire is connected, refer to next flowchart.

Yes

Gas Models: Is

sensor contact

closing?

Replace sensor or adjust burner flame (refer to Adjustments section).

Yes

Is cycling

thermostat

inoperative?

Test thermostat and replace if inoperative.

Is wiring

broken, loose

or incorrect?

Refer to wiring diagram.

Yes

Is timer

inoperative?

Test timer and replace if inoperative.

Yes

SWD1709S

10. DRYER HEATER ASSEMBLY OR BURNER SHUTS OFF PREMATURELY

20 505894

Page 23

11. DRYER HEATER ASSEMBLY OR BURNER REPEATEDLY CYCLES OFF ON LIMIT

Dryer heater assembly or burner repeatedly cycles off on limit thermostat.

Is external exhaust

system longer or providing greater

restriction than

recommended?

Refer to

Installation Instructions

(supplied with unit) for exhaust system requirements.

Is exhaust duct made of plastic

or thin foil?

Replace with rigid or semi-rigid metal exhaust duct.

Yes

Is lint filter

clogged?

Clean lint filter.

Yes

Is there lint in

internal dryer

ductwork?

Disassemble dryer ductwork and clean.

Is there lint

or other

obstruction in

external exhaust

system?

Disassemble and clean exhaust system.

Yes

Is hinged

damper on

exhaust system

weather hood

not free to

open?

Free hinged damper or replace weather hood.

Yes

Is limit

thermostat

cycling at too

low a

temperature?

Replace thermostat.

Yes

SWD1710S-a

Yes

Continued on

next page.

SWD1710S-a

THERMOSTAT

Section 3 Troubleshooting

505894 21

Page 24

Section 3 Troubleshooting

SWD1710S-b

Continued from

previous page.

Is there an air

leak at front panel seal?

Check and replace seal if necessary.

Check and replace seal(s) if necessary.

Is there an air

leak at cylinder

seal(s)?

Is there an air leak at blower

seal?

Check and replace seal if necessary.

Is there an air leak

around loading door?

(Door not sealing due

to damaged seal or

inoperative door

catch)?

Replace seal or catch.

Yes

SWD1710S-b

DRYER HEATER ASSEMBLY OR BURNER REPEATEDLY CYCLES OFF ON LIMIT

THERMOSTAT (CONTINUED)

22 505894

Page 25

12. DRYER HEATER ASSEMBLY OR BURNER DOES NOT SHUT OFF

Dryer heater assembly or burner does not shut off.

Is motor switch

inoperative? (Must be in a heat setting.)

Test switch and replace if inoperative.

Yes

Motor does

not stop?

Refer to Dryer

Motor Does Not Stop paragraph.

Yes

Is wiring

incorrect?

Refer to wiring diagram.

Yes

SWD1700S

Has heater

assembly

shorted?

Remove heater assembly and check for short.

Yes

SWD1700S

Section 3 Troubleshooting

505894 23

Page 26

Section 3 Troubleshooting

Clothes do not dry in dryer.

Does heater

assembly not

heat or

burner not

ignite?

Refer to Dryer

Heating Assembly Does Not Heat or Burner Does Not Ignite

paragraph.

Ye s

Is there too

much water

in articles

being dried?

Is laundry

load too

large?

Remove part of load. A normal washer load is a normal dryer load. Maximum load: Dryer cylinder one half full of wet clothes.

Ye s

DRY1870S

Remove excess water.

Ye s

Is laundry

load too

small?

Add one or two bath towels to load.

Is there

excessive

lint on lint

filter?

Clean lint filter.

Is exhaust

system

improper or

inadequate?

Refer to

Installation Instructions

(supplied with unit) for exhaust requirements.

Ye s

Does heater

assembly or

burner shut off

prematurely?

Refer to Dryer

Heater Assembly or Burner Shuts Off Prematurely

paragraph.

Ye s

Gas Models: Is

gas line

pressure too

high or too low?

If Natural Gas line pressure to dryer exceeds 8 inch water column pressure, or is lower than 5 inch water column, ask Gas Company to correct.

Is belt installed improperly (low

RPM)?

Check for proper installation.

Ye s

Is fabric selector

switch or timer set on

NO HEAT/FLUFF or

inoperative?

Test and replace switch or timer if inoperative.

Ye s

Automatic Cycle?

Adjust timer knob to More Dry setting.

Ye s

DRY1870S

13. CLOTHES DO NOT DRY IN DRYER

24 505894

Page 27

14. TIMER DOES NOT ADVANCE IN AUTOMATIC CYCLE

Timer does not advance in automatic cycle.

Is exhaust

system

improper or

inadequate?

Refer to

Installation Instructions

(supplied with unit) for exhaust requirements.

Yes

Is cycling

thermostat

inoperative?

Test thermostat and replace if inoperative.

Yes

SWD1712S

Are seals inoperative (air leaks)?

Check and replace any inoperative seals in the following areas:

1. Seal between loading door and front panel.

2. Seal between front panel and front bulkhead.

3. Seal between blower cover and air duct.

4. Seal between cylinder and front or rear bulkhead.

5. Gap between air duct and filter mounting.

Yes

Electric

Models: Is

resistor

inoperative?

Test resistor and replace if inoperative.

Heater

assembly

does not heat

or burner does

not ignite?

Refer to Dryer

Heating Assembly Does Not Heat or Burner Does Not Ignite

paragraph.

Heater assembly

or burner cycles

off prematurely?

Refer to Dryer

Heater Assembly or Burner Shuts Off Prematurely

paragraph.

Is large

load

drying?

Timer will not advance until the load is almost dry.

Is wiring

broken,

loose or

incorrect?

Refer to wiring diagram.

Is timer

motor

inoperative?

Select a drying cycle and activate start switch. Rotate timer knob until signal sounds. Release timer knob. Signal should stop within ten minutes. If not, replace timer.

Yes

SWD1712S

Section 3 Troubleshooting

505894 25

Page 28

Section 3 Troubleshooting

Clothes are too hot when removed from dryer.

Is exhaust

system

improper or

inadequate?

Refer to

Installation Instructions

(supplied with unit) for exhaust requirements.

Ye s

Were clothes

removed from

dryer before

cycle has

completed?

Allow the dryer to complete the cycle through the cool-down to the OFF position.

Ye s

Is cycling

thermostat

inoperative?

Test cycling thermostat and replace if inoperative.

Ye s

DRY1871S

Are seals inoperative (air leaks)?

Check and replace any inoperative seals in the following areas:

1. Seal between loading door and front panel.

2. Seal between front panel and front bulkhead.

3. Seal between blower cover and air duct.

4. Seal between cylinder and front or rear bulkhead.

5. Gap between air duct and filter mounting.

Ye s

Is timer

inoperative

(not allowing

cool-down)?

Test timer and replace if inoperative.

Ye s

Is thermostat

heater

inoperative on

DELICATE/

KNITS setting?

Test thermostat heater and replace if inoperative.

Ye s

DRY1871S

15. CLOTHES ARE TOO HOT WHEN REMOVED FROM DRYER

26 505894

Page 29

16. EXCESSIVE CHATTERING OR VIBRATING NOISE IN DRYER

Excessive chattering or vibrating noise in dryer.

Is idler spring

inoperative?

Remove lower access panel. Set dryer to normal cycle and allow it to heat to operating temperature. If the belt vibrates as it rotates around the cylinder, the idler arm is making the noise. Replace the idler spring.

Yes

SWD1703S

Check blower fan for missing or cracked fan blades.

SWD1703S

Section 3 Troubleshooting

505894 27

Page 30

Section 3 Troubleshooting

Excessive humming or whistling noise in dryer.

Is blower

housing

inoperative?

If the abnormal operating noise is loudest at the vent exit, the problem is originating from the blower housing. Replace the current housing and cover.

Yes

SWD1704S

Check blower fan for missing or cracked fan blades.

SWD1704S

17. EXCESSIVE HUMMING OR WHISTLING NOISE IN DRYER

28 505894

Page 31

Section 3 Troubleshooting

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the dryer(s) before servicing.

• Close gas shut-off valve to gas dryer(s) before servicing.

• Never start the dryer(s) with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the dryer is properly grounded.

W001R1

WARNING

18. IGNITION CONTROL FLASHES

Refer to Figure 1.

light will flash a “Flash Code” when the control is in the lock-out mode. The light will flash on for 1/4

NOTE: This control will lock-out the igniter after four failed attempts at ignition. The control can be reset

by opening loading door, waiting 1 minute, then closing loading door. If door is closed before waiting

second then off for 1/4 second for each number. The pause between flash codes is 2 seconds. These flashes are caused by the control’s diagnostic test and can be interpreted by reading the following:

1 minute, the control will re-enter lockout. The red

FLASH CODE POSSIBLE CAUSE TO CORRECT Constant Light Internal failure. • Reset dryer. (Refer to NOTE above.) If

condition persists, then replace control.

One Flash Air in gas line. • Purge air from gas line.

Sensor coated with Aluminum Oxide. • Wipe sensor clean or replace sensor if

necessary.

Incorrect gas pressure. • Check for correct gas pressure. If gas pressure

is incorrect, then contact local gas company.

Gas shut-off valve closed. • Open gas shut-off valve.

Four Flashes Internal failure. • Reset dryer. If condition persists, then replace

control.

Loose or disconnected wiring. • Check all wiring leading to, or coming from,

the control module for secure connections.

Open Igniter/igniter sensing circuit/ voltage measurement circuit.

• Check igniter and all circuits, replace if necessary.

Five Flashes Loose or disconnected wiring. • Check all wiring leading to, or coming from,

the control module for secure connections.

Inoperative gas valve. • Check gas valve and replace if necessary. Inoperative sensor. • Replace sensor/igniter.

Six Flashes Loose or disconnected wiring. • Check all wiring leading to, or coming from,

the control module for secure connections.

Incorrect wiring. • Check wiring diagram and make sure dryer is

wired correctly.

Incorrect polarity. • Contact a professional electrician to check the

polarity, and correct any problems.

505894 29

Page 32

Section 3 Troubleshooting

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the dryer(s) before servicing.

• Close gas shut-off valve to gas dryer(s) before servicing.

• Never start the dryer(s) with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the dryer is properly grounded.

W001R1

WARNING

WHITE - ROGERS DIV.

EMERSON ELECTRIC CO.

DISCONNECT POWER

BEFORE SERVICING

DISCONNECT POWER

BEFORE SERVICING

DISCONNECT POWER

BEFORE SERVICING

DISCONNECT POWER

BEFORE SERVICING

DISCONNECT POWER

BEFORE SERVICING

DISCONNECT POWER

BEFORE SERVICING

DISCONNECT POWER

BEFORE SERVICING

DISCONNECT POWER BEFORE

SERVICINGGDGHDHJD DHJD DHD HD

HD HD HDGFJGFKGK GFJHGJ FHFH

F KJFJF KH GJHJF JDAPALS DK KF

DISCONNECT POWER BEFORE

SERVICING SERVICEING OK

IMPORTANT

DIAGNOSTIC INDICATOR

MODEL 50A72-203.

WARNING

Control

Red

Light

D194SE3D

IGNITION CONTROL FLASHES (continued)

FLASH CODE POSSIBLE CAUSE TO CORRECT

Seven Flashes Loose or disconnected wiring. • Check all wiring leading to, or coming from,

the control module for secure connections.

Sensor and/or appliance not properly grounded.

• Check grounding from control to base, and from lead in cord to dryer.

Rapid Flashing Incorrect frequency. • Contact a professional electrician to check the

frequency, and correct any problems. Power supply must be 50 – 60 Hz. 2-wire, plus grounding (earth) wire.

Figure 1

30 505894

Page 33

Section 4

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the dryer(s) before servicing.

• Close gas shut-off valve to gas dryer(s) before servicing.

• Never start the dryer(s) with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the dryer is properly grounded.

W001R1

WARNING

To reduce the risk of serious injury or death by carbon monoxide and other gases in gas dryers, carefully read and follow all instructions given in this section.

W005

WARNING

D351S

Dryer

Base

Leveling

Leg

Adjustments

IMPORTANT: When reference is made to directions (right or left) in this manual, it is from operator’s position facing front of washer.

19. LEVELING LEGS

Refer to Figure 2.

NOTE: Dryer should be installed on a solid and level floor.

a. Place dryer in position, adjusting the legs until

dryer is level.

NOTE: Legs can be adjusted outside the dryer by using a 1-1/4 inch size wrench, or from inside the dryer (with lower front access panel removed) by using a 1/4 inch drive ratchet with extension.

b. Keep dryer as close to the floor as possible. All

four legs must rest firmly on the floor so weight of the dryer is evenly distributed. The dryer MUST NOT rock.

IMPORTANT: DO NOT move the dryer at any time unless the dryer is completely assembled. DO NOT slide the dryer across the floor once the leveling legs have been extended as the legs and base could become damaged.

505894 31

Figure 2

Page 34

Section 4 Adjustments

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the dryer(s) before servicing.

• Close gas shut-off valve to gas dryer(s) before servicing.

• Never start the dryer(s) with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the dryer is properly grounded.

W001R1

WARNING

To reduce the risk of fire or serious injury, the access panel must be in place during normal operation.

W262

WARNING

20. BURNER FLAME (Gas Models)

a. While supporting the access panel, remove two

screws from bottom edge of access panel. Refer to Figure 8.

b. Gently lower the access panel to disengage

locators from bottom edge of front panel. Refer

to Figure 17. c. Set timer to 60 minutes. d. Close the loading door. Start the dryer in a heat

setting (refer to Operating Instructions supplied

with the dryer). The dryer will start, the igniter

will glow red, and the main burner will ignite. e. Allow the dryer to operate for approximately

five minutes, then loosen the air shutter

lockscrew. Refer to Figure 3.

f. Turn the air shutter to the left to get a luminous

yellow tipped flame, then turn it back slowly to the right to obtain a steady blue flame.

g. After proper flame is obtained, tighten air

shutter lockscrew firmly. Refer to Figure 3.

h. Reinstall access panel and screws.

NOTE: After the dryer has operated for approximately three minutes, exhaust air or exhaust pipe should be warm.

32 505894

Page 35

Section 4 Adjustments

AIR SHUTTER

LOCKSCREW

AIR

SHUTTER

SHUT-OFF

VALVE

HANDLE

1/8" PIPE PLUG

(For checking manifold pressure)

D265SE3A

SILICON CARBIDE IGNITION SYSTEM

Shut-Off Valve

Handle

(Shown in Open Position)

1/8" Pipe Plug

(For checking manifold pressure)

Air Shutter Lockscrew

Air

Shutter

D363SE3A

505894 33

SILICON NITRIDE IGNITION SYSTEM

Figure 3

Page 36

Section 5

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the dryer(s) before servicing.

• Close gas shut-off valve to gas dryer(s) before servicing.

• Never start the dryer(s) with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the dryer is properly grounded.

W001R1

WARNING

MOD

60-1

XXX VAC

RSPCª

MODEL 275BEF

S L1

P/B

3 WATT

Timer Motor

Wires

“M”

“L1”

MOD

60-1

XXX VAC

RSPC

MODEL 275BEF

3 WATT

L2 L2

P/B

Timer Motor

Wires

“M”

“L1”

“L2”

“H”

MOD

60-1

XXX VAC

RSPC

MODEL 275BEF

3 WATT

L2 L2

P/B

Wires

“M”

“L1”

“L2”

“H”

Test Procedures

IMPORTANT: Electrical test procedures in this service manual are performed by using a Volt-Ohm meter. Tests can also be performed using a multimeter or any other electrical testing equipment with which the service person is familiar.

21. TIMER CONTACTS

Refer to Figure 4. a. Disconnect wires from timer, except timer

motor wires.

NOTE: Refer to appropriate wiring diagram when rewiring timer.

b. Manually rotate timer out of “OFF” position

and into cycle.

c. Set test meter to read Ohms. The following

readings should be found: (1) Motor circuit test – L1 and M = “zero”

Ohms (closed)

(2) Heat circuit test – L2 and H = “zero” Ohms

(closed)

(3) Timer motor test – T and M (1702 and1709

suffix models) or T and N (all other models) = approximately 2462-2714 Ohms or apply live power to timer motor terminals and motor should run.

MODELS WITH 80+ MINUTES

IN TIME DRY CYCLE

34 505894

DRY1825S

1702 AND 1709 SUFFIX MODELS

WITH 70+ MINUTES IN

TIME DRY CYCLE

Figure 4

DRY1827S

ALL OTHER MODELS

WITH 70+ MINUTES IN

TIME DRY CYCLE

DRY1826S

Page 37

Section 5 Test Procedures

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the dryer(s) before servicing.

• Close gas shut-off valve to gas dryer(s) before servicing.

• Never start the dryer(s) with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the dryer is properly grounded.

W001R1

WARNING

NOTE: Timer Motor Resistance:

120 Volt, 60 Hz 2,462 – 2,714 Ohms 240 Volt 10,900 – 13,300 Ohms 24 Volt 108 – 132 Ohms

(4) Rotate timer to “cooldown” (5 minutes

before “OFF”). “Infinite” (open) reading should be found between L2 and H.

(5) Rotate timer to “OFF” position. “Infinite”

(open) reading should be found between L1 and M and between L2 and H.

NOTE: Timer motor power is supplied through M (1702 and1709 models) or N (all other models) terminal.

22. FABRIC SELECTOR SWITCH

NOTE: Refer to proper model wiring diagram when rewiring switch.

a. Set test meter to read Ohms and apply meter

probes to switch terminals.

NOTE: Refer to proper model wiring diagram when reconnecting wires.

FABRIC SELECTOR SWITCH – 4 Position

L1-1 L1-2

No Heat/Air Fluff – –

Delicate X X

Perm. Press – X

Regular – X

X indicates closed

FABRIC SELECTOR SWITCH

L1-2 L1-3 L1-1

No Heat/Air Fluff – X –

Delicate/Knits X – X

Regular/Perm. Press X – –

X indicates closed

– 3 Position

505894 35

Page 38

Section 5 Test Procedures

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the dryer(s) before servicing.

• Close gas shut-off valve to gas dryer(s) before servicing.

• Never start the dryer(s) with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the dryer is properly grounded.

W001R1

WARNING

DRIVE

MOTOR

MOTOR AND

EXHAUST

ASSEMBLY

D326SE3A

MOTOR

DISCONNECT

BLOCK

MOTOR

SWITCH

23. DRIVE MOTOR

Refer to Figure 5. a. Remove motor and exhaust assembly. Refer to

Paragraph 51.

b. Disconnect motor wire harness at motor

disconnect block.

NOTE: Refer to wiring schematic, Section 8, for internal motor switch wires.

NOTE: Drive Motor Resistance

120 Volt 2,460 – 3,100 Ohms 240 Volt 10,000 - 13,000 Ohms

Figure 5

36 505894

Page 39

Section 5 Test Procedures

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the dryer(s) before servicing.

• Close gas shut-off valve to gas dryer(s) before servicing.

• Never start the dryer(s) with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the dryer is properly grounded.

W001R1

WARNING

Disconnect electric power to dryer before performing any of the following steps or when replacing inoperative motor switch.

W290

WARNING

A. Continuity exists between switch

terminal 5 and terminal 3 (black or copper wire).

Inoperative start

switch. Replace switch.

Refer to Section 5.

Unplug the motor wire harness from the motor

connection block before starting this test.

B. Manually depress actuator.

Continuity broken between switch terminal 5 and terminal 3 (black or copper wire).

C. Continuity broken between switch

terminal 6 and terminal 5 (yellow or copper wire).

D. Manually depress actuator.

Continuity exists between switch terminal 6 and terminal 5 (yellow or copper wire).

E. Continuity broken between switch

terminal 1 and switch terminal 2.

F. Manually depress actuator.

Continuity exists between switch terminal 1 and switch terminal 2.

Motor switch checks O.K.

Start Terminals

Run Terminals

Heater Circuit Terminals

Note: Disconnect terminal 5 wire (yellow or copper) from motor switch before testing start terminals.

Note: Reconnect terminal 5 wire (yellow or copper) to motor switch before testing run terminals.

YES

Inoperative start

switch. Replace switch.

Refer to Section 5.

Inoperative start

switch. Replace switch.

Refer to Section 5.

YES

c. Motor Switch (Refer to SECTION 8 for Internal Wiring of the Dryer Motor Switch.)

505894 37

Page 40

Section 5 Test Procedures

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the dryer(s) before servicing.

• Close gas shut-off valve to gas dryer(s) before servicing.

• Never start the dryer(s) with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the dryer is properly grounded.

W001R1

WARNING

Disconnect electric power to dryer before performing any of the following steps or when replacing inoperative motor switch.

W290

WARNING

G. 1 – 2 Ohms between terminal

3 wire and orange or copper wire on the back of switch.

Start Winding

H. 1 – 2 Ohms between terminal 5

wire and orange or copper wire on the back of switch wire.

I. Continuity exists between

orange or copper wire on back of switch and brown or blue wire in terminal 4.

All motor windings check O.K.

Run Main Winding

Protector

YES

Inoperative start winding.

Replace motor. Refer to

Paragraph 51.

Inoperative protector.

Replace motor.

Refer to Paragraph 51.

Inoperative run main

winding. Replace motor.

Refer to Paragraph 51.

YES

d. Motor Windings (Refer to SECTION 8 for Internal Wiring of the Dryer Motor Switch.)

38 505894

Page 41

24. MOTOR SWITCH

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the dryer(s) before servicing.

• Close gas shut-off valve to gas dryer(s) before servicing.

• Never start the dryer(s) with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the dryer is properly grounded.

W001R1

WARNING

D029KE3A

Mounting

Tab

Thermal Overload Protector

Motor

Switch

a. Remove motor and exhaust fan assembly. Refer

to Paragraph 51.

b. Remove the two motor switch attaching screws.

Refer to Figure 10. Disconnect switch leads. Remove motor switch.

c. Remove thermal overload protector.

Section 5 Test Procedures

NOTE: The thermal overload protector is unique to the motor from which it was removed and should only be used on that motor. To reduce the risk of overheating the motor, do not use any thermal overload protector other than the one taken from the inoperative motor switch in step 3.

(1) Motor with Switch on Blower End

Using a small bladed screwdriver, press the thermal overload protector mounting tab downward and remove the thermal overload protector from the inoperative motor switch. Refer to Figure 6.

Figure 6

505894 39

Page 42

Section 5 Test Procedures

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the dryer(s) before servicing.

• Close gas shut-off valve to gas dryer(s) before servicing.

• Never start the dryer(s) with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the dryer is properly grounded.

W001R1

WARNING

D359SE3A

Thermal

Overload

Protector

Plastic

Clip

Motor

Switch

Top Of

Motor

Switch

(2) Motor with switch on pulley end

Press the tip of a small bladed screwdriver into the slot located between top of motor switch and plastic clip. Lift up on handle of screwdriver until both clip and thermal overload protector detach from motor switch. Refer to Figure 7.

d. Attach the thermal overload protector removed

in Step “c” to the new motor switch.

e. Install new motor switch onto motor and

reconnect motor switch leads removed in Step “b”. Refer to Figure 10.

f. Test motor switch by following the step-by-

step procedures included in Paragraph 23.

g. Before reinstalling the motor assembly, apply

power (120 VAC) directly to motor terminals 4 and 5. Then start and run the motor at least 6 times, making sure the motor and switch are operating properly.

NOTE: The dryer manufacturer and parts suppliers are not liable for improper switch installation.

Figure 7

40 505894

Page 43

Section 5 Test Procedures

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the dryer(s) before servicing.

• Close gas shut-off valve to gas dryer(s) before servicing.

• Never start the dryer(s) with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the dryer is properly grounded.

W001R1

WARNING

SECONDARY

COIL

HOLDING COIL

AND

BOOSTER COIL

(SPLIT COIL VALVE)

2 3

D267SE3B

SENSOR

SECONDARY

COIL

HOLDING

COIL

BOOSTER

COIL

IGNITOR

120 VOLT, 60 HERTZ

ELECTRICAL

SUPPLY LINE

D268SE3A

Figure 8

25. BURNER SYSTEM OPERATION

(Gas Models – Refer to Figure 8.) a. Components

This burner has four basic components: a silicon carbide (glow bar) igniter, burner tube, sensor, and a two-stage gas valve consisting of a split-coil valve and a secondary coil valve. The split-coil valve is opened when the dryer thermostat calls for heat, while the secondary valve does not open until the igniter has attained ignition temperature.

b. Pre-Ignition Circuits

When the dryer thermostat calls for heat, circuits are completed through the holding coil, sensor, booster coil and igniter. Both coils must be energized to open the split-coil valve. Once opened, the holding coil can hold the valve open without assistance from the booster coil. The sensor triggers the current to travel around the secondary coil and through the igniter, causing the igniter to get hot.

c. Burner Circuit

In approximately 30 seconds, the igniter attains ignition temperature and ignition is made. The heat from the burner flame causes the sensor contacts (located on burner housing beside the igniter) to open. A circuit is then completed

505894 41

through the secondary valve coil, opening the valve and allowing gas to flow.

d. Momentary Power Interruption

Upon resumption of power, sensor contacts will still be open, permitting secondary valve to open. However, with the secondary coil in the circuit, the booster coil cannot draw enough current to open the split-coil valve. When sensor contacts do reclose, the secondary valve will close, and the burner system will be in the normal pre-ignition circuit.

e. Flame Failure

In case of flame failure, the sensor contacts will re-close in about 45 seconds. This will close the secondary valve and the burner system will be in the normal pre-ignition circuit.

f. Ignition Failure

If flame is not established as sensor contacts open, secondary valve will remain open until sensor contacts re-close. Sensor will continue to recycle the igniter and secondary valve (about once per minute) until ignition is made or dryer is turned off.

Page 44

Section 5 Test Procedures

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the dryer(s) before servicing.

• Close gas shut-off valve to gas dryer(s) before servicing.

• Never start the dryer(s) with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the dryer is properly grounded.

W001R1

WARNING

Redundant

Coil

Main

Coil

GAS VALVE FOR SILICON NITRATE IGNITION

D340SE3A

1 2

1 - 3

4 5

SECONDARY

COIL

HOLDING

AND BOOSTER

COIL

D270SE3A

Flame

Sensor

220/240 Volt,

50 Hertz

Electrical

Supply Line

Ground

Igniter

IGNITION

CONTROL

42 505894

Main

Coil

WIRING SCHEMATIC

Figure 9

Redundant

Coil

D332SE3A

Page 45

26. ELECTRICAL CIRCUIT TO IGNITION SYSTEM (Gas Models)

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the dryer(s) before servicing.

• Close gas shut-off valve to gas dryer(s) before servicing.

• Never start the dryer(s) with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the dryer is properly grounded.

W001R1

WARNING

To reduce the risk of fire, explosion and electric shock, close the valve in the gas supply line to the gas dryer and disconnect the electrical power unless gas or power supplies are required to perform test procedure.

W263

WARNING

a. While supporting the access panel, remove two

screws from bottom edge of access panel. Refer to Figure 8.

b. Gently lower the access panel to disengage

locators from bottom edge of front panel. Refer to Figure 17.

c. Close main gas shut-off valve. Refer to

Figure 3.

d. Remove valve wire harness disconnect block

from the holding and booster coil. Refer to Figure 9.

e. Plug dryer power cord into wall receptacle, and

start the dryer in a heat setting (refer to the Operating Instructions supplied with dryer).

f. Set test meter to read AC voltage and apply

meter probes into terminals on the dryer harness plug that would correspond to terminals "1" and "2" on the coil. Figure 8.

27. GAS VALVE COILS CHECK (Gas Models)

a. While supporting the access panel, remove two

screws from bottom edge of access panel. Refer to Figure 8.

b. Gently lower the access panel to disengage

locators from bottom edge of front panel. Refer to Figure 17.

c. Close main gas shut-off valve. Refer to

Figure 3.

d. Remove disconnect blocks from gas valve

coils.

e. Set test meter to read Ohms and put meter

probes to terminals shown in Figure 9, and in the following chart.

Silicon Carbide Ignition:

COIL TOLERANCE READINGS

Meter should register line voltage in all Fabric settings, except NO HEAT/AIR FLUFF which should read “zero” VAC.

Meter probes to terminals: Meter should read:

Holding Coil – Terminals 1 & 2 1700 ± 285 Ohms

g. If meter does not read line voltage in step “f”,

check motor switch, thermostats, fabric switch, accumulator, or timer.

Booster Coil – Terminals 1 & 3 685 ± 115 Ohms

Secondary Coil – Terminals 4 & 5 1680 ± 285 Ohms

Section 5 Test Procedures

Silicon Nitride Ignition: Both coils should read between 2400-2800

Ohms.

NOTE: If meter registers any other readings than those listed above, the respective coil(s) should be replaced.

505894 43

Page 46

Section 5 Test Procedures

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the dryer(s) before servicing.

• Close gas shut-off valve to gas dryer(s) before servicing.

• Never start the dryer(s) with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the dryer is properly grounded.

W001R1

WARNING

28. SENSOR CHECK (Gas Models)

a. While supporting the access panel, remove two

screws from bottom edge of access panel. Refer to Figure 8.

b. Gently lower the access panel to disengage

locators from bottom edge of front panel. Refer to Figure 17.

c. Close main gas shut-off valve. Refer to

Figure 3.

d. Remove wires from sensor terminals. Refer to

Figure 20.

e. Set test meter to read Ohms and put meter

probes on sensor terminals. Meter should read “zero” Ohms. If meter registers an Ohm reading of any amount, replace sensor.

29. IGNITER CHECK (Gas Models)

a. While supporting the access panel, remove two

screws from bottom edge of access panel. Refer to Figure 8.

b. Gently lower the access panel to disengage

locators from bottom edge of front panel. Refer to Figure 17.

c. Close main gas shut-off valve. Refer to

Figure 3. d. Disconnect igniter wires at disconnect block. e. Set test meter to read Ohms and put meter

probes on terminals of igniter wires.

f. Silicon Carbide Igniter: Meter should read

between 45 – 200 Ohms.

Silicon Nitride Igniter

: Meter should read

between 49 – 88 Ohms.

NOTE: If meter does not read appropriate Ohms, then replace the igniter.

IMPORTANT: Always examine all wires, terminals and connectors to be sure wiring is correct before replacing any components.

30. IGNITION CONTROL GROUNDING CHECK (Silicon Nitride Ignition)

a. While supporting the access panel, remove two

screws from bottom edge of access panel. Refer to Figure 8.

b. Gently lower the access panel to disengage

locators from bottom edge of front panel. Refer to Figure 17.

c. Close main gas shut-off valve. Refer to

Figure 3.

d. Remove wires from sensor terminals. Refer to

Figure 20.

e. Set test meter to read Ohms and put meter

probes on the ground wire connection in 12-pin block (connected to module) and on the green ground screw in base of dryer.

f. Meter should read “zero” Ohms. If meter

registers an Ohm reading of any amount, check ground wire connection and replace as necessary.

31. THERMAL FUSE (Electric Models)

a. While supporting the access panel, remove two

screws from bottom edge of front access panel. Refer to Figure 8.

b. Gently lower the access panel to disengage

panel locators from bottom edge of front panel. Refer to Figure 17.

c. Label and disconnect wires from thermal fuse.

Refer to Figure 22.

NOTE: Refer to wiring diagram when rewiring thermal fuse.

d. Set multimeter to read Ohms. Apply meter

probes to thermal fuse terminals. Multimeter should read 0 Ohms. If the meter does not show any reading (infinite Ohms), then the fuse is open. If the fuse is open, then replace BOTH the thermal fuse and the limit thermostat.

44 505894

Page 47

32. HEATER ASSEMBLY (Electric Models)

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the dryer(s) before servicing.

• Close gas shut-off valve to gas dryer(s) before servicing.

• Never start the dryer(s) with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the dryer is properly grounded.

W001R1

WARNING

a. While supporting the access panel, remove two

screws from bottom edge of access panel. Refer to Figure 8.

b. Gently lower the access panel to disengage

panel locators from bottom edge of front panel. Refer to Figure 17.

c. Disconnect wires from heater assembly. Refer

to Figure 22.

NOTE: Refer to wiring diagram when rewiring heater assembly.

d. Set meter to read Ohms. Apply meter probes to

the heater assembly terminals. Refer to Figure 22. Meter should read as follows: (Cold Ohms).

Heater Element Color Code

Red 5 240 V 60 Hz. 10.39 ± .31 Ohms Cold

White 4.75 208 V 60 Hz. 8.2 ± .5 Ohms Cold

Green 4.8 240 V 50 Hz. 10.75 ± .32 Ohms Cold

Yellow 4 240 V 50 Hz. 13.03 ± .39 Ohms Cold

Blue 3.1 240 V 50 Hz. 16.7 ± .5 Ohms Cold

Orange 5.35 240 V 60 Hz. 9.72 ± .3 Ohms Cold

Purple 4.25 208 V 60 Hz. 9.27 ± .3 Ohms Cold

KW Voltage/Hz. Resistance Reading

33. CYCLING OR LIMIT THERMOSTAT

a. While supporting the access panel, remove two

screws from bottom edge of access panel. Refer to Figure 8.

b. Gently lower the access panel to disengage

panel locators from bottom edge of front panel. Refer to Figure 17.

c. Label and disconnect wires from thermostat.

Refer to Figure 22.

Section 5 Test Procedures

NOTE: Refer to wiring diagram when rewiring thermostat.

Cycling Thermostat (S.P.S.T. – 2 Terminals) or Limit Thermostat

d. Set meter to read Ohms.

(1) Apply meter probes to the thermostat

terminals.

(2) Meter should read “zero.”

34. DOOR SWITCH

a. While supporting the access panel, remove two

screws from bottom edge of access panel. Refer to Figure 8.

b. Gently lower the access panel to disengage

locators from bottom edge of front panel. Refer to Figure 17.

c. Remove two screws holding bottom tabs on

front panel to dryer side panels. Refer to Figure 9. Swing bottom of front panel away from dryer far enough to disengage hold-down clips and locators from cabinet top.

d. Disconnect wires from door switch. Refer to

Figure 16.

NOTE: Refer to model wiring diagram when rewiring door switch.

e. Set meter to read Ohms and apply meter probes

on switch terminals 1 and 3 with door closed. You should get “zero” reading.

f. Apply probes to terminals 1 and 2 with door

closed. The meter should read “infinite”.

g. Open door. Meter should read “infinite”

between 1 and 3 and “zero” between 1 and 2.

505894 45

Page 48

Section 6

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the dryer(s) before servicing.

• Close gas shut-off valve to gas dryer(s) before servicing.

• Never start the dryer(s) with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the dryer is properly grounded.

W001R1

WARNING

Internal Wiring of Dryer Motor Switch

MAIN

ORANGE/COPPER

OVERLOAD

PROTECTOR

BLUE/BROWN

START

CUSTOMER CIRCUIT

PUSH TO

START

BLACK/COPPER

LINE

26 4 3 5 1

SWITCH SHOWN IN START POSITION

YELLOW/COPPER

Motor Switch

Attaching Screws

26 4 3 5 1

R.S.P.C.

D329SE3D

Figure 10

46 505894