Alliance NG8839 Parts Diagram

Home Laundry

Dryers

“AE”, “AG”, “AEE”, “AGE”, “AEM”,

“AGM”, “NE and "NG" Series

Refer to Page 6 for Model Numbers

Service

www.comlaundry.com

Part No. 62310R1

February 2002

Section 1 – Safety Information

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

Section 2 – Introduction

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

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

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

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

Section 3 – Troubleshooting

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

2. Motor Overload Protector Cycles

Repeatedly ......................................................10

3. Motor Runs But Cylinder Does Not Turn ......10

4. Motor Does Not Stop .....................................10

5. Heater Assembly Does Not Heat Or Burner

Does Not Ignite ..............................................11

6. Igniter Does Not Glow (Gas Supply Sufficient)

— Gas Models ...............................................12

7. Burner Ignites And Goes Out Repeatedly

— Gas Models ...............................................12

8. Igniter Glows But Burner Does Not Ignite

— Gas Models ...............................................12

9. Heater Assembly Or Burner Shuts Off

Prematurely ....................................................13

10. Heater Assembly Or Burner Repeatedly Cycles

Off On Limit Thermostat ...............................13

11. Heater Assembly Or Burner Does Not

Shut Off ..........................................................14

12. Clothes Do Not Dry .......................................14

13. Timer Does Not Advance in Automatic Cycle

(Mechanical Timer Models Only) ..................15

14. Clothes Are Too Hot When Removed From

Dryer ..............................................................15

Section 4 – Grounding

15. Motor Mounting Bracket To Motor ...............17

16. Neutral At Terminal Block To Terminal Block Bracket And From Terminal Bracket To Control

Housing (Electric Models Only) ....................17

17. Power Cord To Terminal Block Bracket And From Terminal Block Bracket To Control Housing. Wall Receptacle Polarity Check

(Gas Models Only) .........................................18

18. From Terminal Block Bracket to Timer Mounting Bracket to Dryer Cabinet Top. Timer Mounting Bracket to Graphics Panel

(Mechanical Timer Models Dryers) ...............19

19. From Terminal Block Bracket to Dryer Cabinet Top to Electronic Control to Graphics Panel

(Electronic Control Models Dryers) ..............19

Section 5 – Service Procedures

20. Control Hood Assembly ................................21

21. Electronic Control ..........................................21

22. Timer ..............................................................21

23. Temperature Switch .......................................26

24. Signal Control ................................................26

25. Start Switch ....................................................26

26. Graphics Panel ...............................................26

27. Lint Filter .......................................................27

28. Loading Door .................................................27

29. Inner and Outer Door Panels and

Door Handle ...................................................28

30. Door Striker ...................................................28

31. Door Seal .......................................................28

32. Front Panel and Panel Seal ............................29

33. Door Switch ...................................................29

34. Striker Catch ..................................................30

35. Door Hinge ....................................................30

36. Hold-Down Clips and Guide Lugs ................30

37. Burner System Operation (Gas Models) ........30

38. Ignition System Features (Gas Models) .........31

39. Burner System Components – Gas Models ...33

40. Burner Housing and Heat Shroud ..................35

41. Limit Thermostat ...........................................36

42. Heater Assembly ............................................37

43. Thermistor or Thermostat or Thermostat and

Heater .............................................................38

44. Front Air Duct ................................................39

45. Exhaust Duct ..................................................39

46. Motor and Exhaust Assembly ........................39

47. Cylinder Light ................................................43

48. Cylinder Light Receptacle .............................43

49. Cabinet top .....................................................43

50. Front Bulkhead Assembly .............................44

51. Cylinder Belt ..................................................45

52. Cylinder Assembly ........................................46

53. Rear Seal ........................................................47

the expressed written consent of the publisher.

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54. Cylinder Rollers .............................................47

55. Rear Bulkhead and Heater Box Assemblies ..48

56. Rear Bulkhead and Heater Box Assemblies ..49

57. Terminal Block or Power Cord ......................50

58. Cabinet ...........................................................51

59. Base ................................................................53

Section 6 – Adjustments

60. Leveling Legs .................................................55

61. Burner Flame (Gas Models) ...........................56

Section 7 – Gas Burner Conversion Procedures

62. Installing the No. 401P3 Kit ..........................58

63. Installing the No. 402P3 Kit ..........................62

Section 8 – Service Procedures Unique to Electronic Control Model Dryers

64. Dryer Operation .............................................66

65. Status Lights ...................................................66

66. Go, Stop and Reset .........................................66

67. Automatic Cycles ...........................................66

68. No-Heat Cycle ...............................................66

69. Customizing Programmed Cycles ..................67

70. Time Drying ...................................................67

71. Signal .............................................................68

72. Memory ..........................................................68

73. Wrinkle Free ..................................................68

74. Electrical Service (Electric Dryers) ...............69

75. Electrical Requirements (Gas Dryers) ...........74

76. Service Procedures for Troubleshooting

Electronic Control ..........................................75

77. Diagnostic Cycle ............................................75

78. Symptom: Failure Symptom ..........................78

Troubleshooting ....................................................78

79. Symptom: Flashing Display ...........................79

80. Symptom: Blown Fuse Or Tripped Circuit

Breaker ...........................................................80

81. Symptom: Control Will Not Wake Up (No

LED’S Light) After Select Pad Is Pressed .....81

82. Symptom: Control Wakes Up (When SELECT Pad is Pressed) But Motor Does Not Start

Properly ..........................................................82

83. Symptom: Heater Does Not Turn On Or

No Heat ..........................................................83

84. Symptom: Improper Heat Or Drying Times ..84

85. Symptom: “oP” appears in Time display .......85

86. Symptom: “SH” appears in time Display ......86

87. Control Replacement .....................................87

Section 9 – Internal Wiring of Dryer Motor

Switch .....................................................................89

Section 10 – Wiring Diagrams

Models AG9439, NG8839, AGE959 and

AGE939 .................................................................92

Models AE9433, NE8833, AEE953 and

AEE933..................................................................93

Models NG6819 and AG5419...............................94

Models NE6813 and AE5413................................95

Models AGM659 and AGM639............................96

Models AEM653 and AEM633.............................97

Models NG4819, AG4419, AGM459 and

AGM439 ................................................................98

Models NE4813, AE4413, AEM453 and

AEM433.................................................................99

Models AG3419, AGM359 and AGM339 ..........100

Models AE3413, AEM353 and AEM333............101

2 62310

Section 1

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.

a DANGER

Danger indicates the presence of a hazard that will cause severe personal injury, death, or substantial property damage if the danger is ignored.

a WARNING

Warning indicates the presence of a hazard that can cause severe personal injury, death, or substantial property damage if the warning is ignored.

a CAUTION

Caution indicates the presence of a hazard that will or can cause minor personal injury or property damage if the caution is ignored.

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.

WARNING

• Failure to install, maintain and/or operate this product 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 product 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 product is properly grounded and to reduce the risk of fire, electric shock, serious injury or death.

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62310 3

Section 1 Safety Information

WARNING

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.

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.

WARNING

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W007

If you or an unqualified person perform service on your product, 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.

W008

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 dryer.

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 62310

Section 2

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 (920) 748-3950 for the name and address of the nearest authorized parts distributor.

For technical assistance, call (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.

62310 5

Section 2 Introduction

AE9433

AE4413

AEM633

AG9439

AG4419

AGM639

Model Identification

Information in this manual is applicable to these dryers.

Electric Gas

NE8833 NE6813 AE5413 NE4813

AE3413 AEE953 AEE933

AEM653

AEM453 AEM433 AEM353 AEM333

NG8839 NG6819 AG5419 NG4819

AG3419 AGE959 AGE939

AGM659

AGM459 AGM439 AGM359 AGM339

6 62310

How Your Dryer Works

LINT

FILTER

Section 2 Introduction

CYLINDER

HEATER

DUCT

EXHAUST

FAN

DRY14S

The dryer uses heated air to dry loads of laundry. When the motor is started, the exhaust fan pulls 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.

62310 7

Section 3

Troubleshooting

WARNING

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.

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

1. MOTOR DOES NOT RUN

POSSIBLE CAUSE TO CORRECT

Electrical power off, fuse blown, or power cord not plugged in.

Loading door not closed or inoperative door switch. • Close door or test switch and replace if inoperative. Motor overload protector has cycled. • Wait two or three minutes for overload protector to reset.

*Timer improperly set. • Reset timer, or try another cycle. Inoperative motor switch. • Test switch and replace if inoperative. *Start circuit not completed. • Press or rotate start switch button, or test switch or timer

Inoperative motor. • Test motor and replace if inoperative. *Inoperative timer. • Test timer and replace if inoperative. Broken, loose, or incorrect wiring. • Refer to appropriate wiring diagram. Power cord is miswired. • Refer to appropriate wiring diagram for the correct

Motor centrifugal switch sticky or plugged with lint.

†Inoperative electronic control. • Refer to Section 8 to check out the electronic control

• A 240 Volt dryer has two fuses – check both fuses.

If protector cycles repeatedly. Refer to Paragraph 2.

and replace if inoperative.

wiring.

• Remove dust or lint and spray with “SLYDE”, No. 131P4, to clean and lubricate.

operation.

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* Mechanical Timer Models only. † Electronic Control Models only.

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Section 3 Troubleshooting

WARNING

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.

2. MOTOR OVERLOAD PROTECTOR CYCLES REPEATEDLY

POSSIBLE CAUSE TO CORRECT

Incorrect Voltage. • Refer to Installation Instructions (supplied with dryer)

for electrical requirements.

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.

Clothes cylinder is binding. • Check cylinder for binding and “out of round” condition.

Also check front and rear bulkheads for warping. Check support rollers for binding. Check cylinder seals and glides for wear or damage.

Inoperative motor overload protector. • Replace drive motor.

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3. MOTOR RUNS BUT CYLINDER DOES NOT TURN

POSSIBLE CAUSE TO CORRECT

Motor drive pulley loose. • Tighten setscrew. Refer to Figure 26. Belt not installed on pulley. • Install belt. Broken cylinder belt. • Replace belt. Clothes cylinder is binding. • Check cylinder for binding and “out of round” condition.

Also check front and rear bulkheads for warping. Check cylinder rollers for binding. Check cylinder seals and glides for wear or damage.

Broken or disconnected idler lever spring. • Replace or reconnect spring. Refer to Figure 26.

4. MOTOR DOES NOT STOP

POSSIBLE CAUSE TO CORRECT

Incorrect wiring. • Refer to appropriate wiring diagram. Motor centrifugal switch sticky or plugged with

lint.

• Remove dust or lint and spray with “SLYDE”, No. 131P4, to clean and lubricate.

Inoperative door switch. • Test switch and replace if inoperative. *Inoperative timer. • Test timer and replace if inoperative. †Inoperative electronic control. • Refer to Section 8 to check out the electronic control

operation.

* Mechanical Timer Models only. † Electronic Control Models only.

10 62310

Section 3 Troubleshooting

WARNING

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.

5. HEATER ASSEMBLY DOES NOT HEAT OR BURNER DOES NOT IGNITE

POSSIBLE CAUSE TO CORRECT

Blown house fuse or tripped circuit breaker. • Check fuses or circuit breakers. A 240 Volt dryer has two

fuses — make sure both fuses are good.

*Temperature selector switch set at FLUFF, or

• Reset switch, or test switch and replace if inoperative.

inoperative. *Timer improperly set. Set in a cool-down period,

• Reset timer. Try another cycle.

or a no heat cycle. Inoperative limit thermostat. • Test thermostat and replace if inoperative. Electric Models: Inoperative heater assembly. • Test heater assembly. Replace heater assembly if cold

Ohms do not read between 8 and 10.5 Ohms.

Gas Models: Insufficient gas supply. • Check gas shut-off valve in dryer and main gas line valve.

Open partially closed gas shut-off valve, or correct low gas pressure.

Inoperative drive motor switch. • Test switch and replace if inoperative. Gas Models: Inoperative gas valve coils. • Test coils and replace if inoperative. Gas Models: Inoperative sensor. • Test sensor and replace if inoperative. Gas Models: Inoperative igniter. • Test igniter and replace if inoperative. Electric Models: Inoperative thermal fuse. • Test thermal fuse and replace if inoperative. *Inoperative cycling thermostat. • Test thermostat and replace if inoperative. *Inoperative timer. • Test timer and replace if inoperative. †Inoperative electronic control. • Refer to Section 8 to check out the electronic control

operation.

†Read-out on electronic control indicates “SH”. • Thermistor is shorted, replace thermistor. †Read-out on electronic control indicates “OP”. • Thermistor is open, replace thermistor. Broken, loose, or incorrect wiring. • Refer to appropriate wiring diagram.

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* Mechanical Timer Models only. † Electronic Control Models only.

62310 11

Section 3 Troubleshooting

WARNING

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.

6. IGNITER DOES NOT GLOW (Gas Supply Sufficient) — GAS MODELS

POSSIBLE CAUSE TO CORRECT

*No power to power leads on valve. • Check timer, selector switch, thermostats, motor switch,

and wiring.

Sensor failed with contacts open. • Replace sensor. Igniter broken or open. • Replace igniter. †Inoperative electronic control. • Refer to Section 8 to check out the electronic control

operation.

7. BURNER IGNITES AND GOES OUT REPEATEDLY — GAS MODELS

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POSSIBLE CAUSE TO CORRECT

Improper or inadequate exhaust system. Weather hood flapper restricted.

• See Installation Instructions (supplied with dryer) for exhaust requirements.

Burner heat not holding sensor contacts open. • Replace sensor, or correct gas supply problem. Insufficient gas supply. • Check gas supply and pressure. Is gas shut-off valve

turned on?

Cracked igniter. • Replace igniter and bracket. Inoperative or intermittent gas valve coils. • Check and replace appropriate coil.

8. IGNITER GLOWS BUT BURNER DOES NOT IGNITE — GAS MODELS

POSSIBLE CAUSE TO CORRECT

Sensor failed in closed position. • Replace sensor. Open secondary coil or holding and booster coil. • Replace gas valve (in-warranty), or replace coils (out-of-

warranty).

Insufficient gas supply. • Check gas supply and pressure. Is gas shut-off valve

turned on?

Igniter and bracket installed improperly on burner tube assembly.

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

Sensor installed improperly on burner housing. • Loosen screw and properly position the sensor on the

burner housing.

* Mechanical Timer Models only. † Electronic Control Models only.

12 62310

Section 3 Troubleshooting

WARNING

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.

9. HEATER ASSEMBLY OR BURNER SHUTS OFF PREMATURELY

POSSIBLE CAUSE TO CORRECT

Improper or inadequate exhaust system. Weather hood flapper restricted.

• See Installation Instructions (supplied with dryer) for exhaust requirements.

Gas Models: Insufficient gas supply. • Check gas shut-off valve in dryer and main gas line valve.

Open partially closed gas shut-off valve, or correct low pressure.

Gas Models: Dryer not properly equipped for type of gas used.

• Refer to Section 7, “Gas Burner Conversion Procedures” in this manual to convert burner.

Gas Models: Improperly adjusted burner flame. • Adjust flame. Refer to Paragraph 61. 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 Paragraph 10.

Gas models: Sensor contact closing prematurely. Burner flame improperly adjusted.

• Replace sensor or adjust burner flame. Refer to Paragraph 61.

*Inoperative cycling thermostat. • Test thermostat and replace if inoperative. *Inoperative timer. • Test timer and replace if inoperative. Broken, loose, or incorrect wiring. • Refer to appropriate wiring diagram. †Inoperative electronic control. • Refer to Section 8 to check out the electronic control

operation.

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10. HEATER ASSEMBLY OR BURNER REPEATEDLY CYCLES OFF ON LIMIT THERMOSTAT

POSSIBLE CAUSE TO CORRECT

External exhaust system longer than recommended. • Refer to Installation Instructions (supplied with dryer)

for exhaust system requirements.

Clogged lint filter. • Remove and clean lint filter. Lint in internal dryer ductwork. • Disassemble dryer ductwork and clean. Lint in external exhaust system. • Disassemble exhaust system and clean. Hinged damper on exhaust system weather hood

• Free hinged damper or replace weather hood.

not free to open. *Limit thermostat cycling at too low a temperature. • Replace thermostat. Refer to Paragraph 41. Air leak around loading door. (Door not sealing due

• Replace seal or catch.

to damaged seal or inoperative door catch.) †Inoperative thermistor. • Test thermistor and replace if inoperative. Air leak at blower seal. • Check and replace seal if necessary.

* Mechanical Timer Models only. † Electronic Control Models only.

62310 13

Section 3 Troubleshooting

WARNING

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.

11. HEATER ASSEMBLY OR BURNER DOES NOT SHUT OFF

POSSIBLE CAUSE TO CORRECT

Improper motor switch. (Timer must be in a heat setting.)

Motor does not stop. • Refer to Paragraph 4. Incorrect wiring. • Refer to appropriate wiring diagram. Heater assembly shorted. • Remove heater assembly and check for short.

12. CLOTHES DO NOT DRY

• Test switch and replace if inoperative.

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POSSIBLE CAUSE TO CORRECT

Heater assembly does not heat or burner does not

• Refer to Paragraph 5.

ignite. Too much water in articles being dried. • Remove excess water. Clothes load too large. • Remove part of load. A normal washer load is normal

dryer load. Maximum load: Dryer cylinder one half full of wet clothes.

Excessive lint on lint filter. • Clean lint filter. Load too small. • Add one or two bath towels to load. Automatic cycle. • Adjust to more dry setting. Three position heat selector switch or timer set on

FLUFF or inoperative

• Reset switch or timer, or test and replace the switch or timer if inoperative.

Improper or inadequate exhaust system. • See Installation Instructions (supplied with dryer) for

exhaust requirements.

Heater assembly or burner shuts off prematurely. • Refer to Paragraph 9. Gas Models: 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 4 inch water column, ask Gas Company to correct.

14 62310

Section 3 Troubleshooting

WARNING

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.

13. TIMER DOES NOT ADVANCE IN AUTOMATIC CYCLE (Mechanical Timer Models Only)

POSSIBLE CAUSE TO CORRECT

Inoperative high or low thermostat. • Test thermostat and replace if inoperative. Heater assembly does not heat or burner does not

• Refer to Paragraph 5.

ignite. Heater assembly or burner cycles off prematurely. • Refer to Paragraph 9. Improper or inadequate exhaust system. • Refer to Installation Instructions (supplied with dryer)

for exhaust requirements.

*Drying large load. • Timer will not advance until the load is almost dry. Broken, loose or incorrect wiring. • Refer to appropriate wiring diagram.

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14. CLOTHES ARE TOO HOT WHEN REMOVED FROM DRYER

POSSIBLE CAUSE TO CORRECT

Clothes are removed from dryer before cycle has completed.

Inoperative cycling thermostat. Inoperative thermostat heater on the DELICATE setting.

• Allow the dryer to complete the cycle through the cooldown to the OFF position.

• Test cycling thermostat or thermostat heater and replace if inoperative.

Inoperative timer (not allowing cool-down). • Test timer and replace if inoperative. Improper or inadequate exhaust system. • Refer to Installation Instructions (supplied with dryer)

for exhaust requirements.

* Mechanical Timer Models only. † Electronic Control Models only.

62310 15

Section 4

Grounding

WARNING

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.

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15. MOTOR MOUNTING BRACKET TO MOTOR

Refer to Figure 1

DRY832S

GROUND

WIRE

16. NEUTRAL AT TERMINAL BLOCK TO TERMINAL BLOCK BRACKET AND FROM TERMINAL BRACKET TO CONTROL HOUSING (Electric Models Only)

Refer to Figure 2

GROUND

WIRE

Figure 1

DRY1051S

Figure 2

62310 17

Section 4 Grounding

WARNING

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.

17. POWER CORD TO TERMINAL BLOCK BRACKET AND FROM TERMINAL BLOCK BRACKET TO CONTROL HOUSING. WALL RECEPTACLE POLARITY CHECK (Gas Models Only)

Refer to Figure 3

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NOTE: For determining the correct polarity of a wall receptacle.

NEUTRAL

SIDE

120

V.A.C.

GROUND

120

V.A.C.

GROUND

NEUTRAL

V.A.C.

WIRE

GROUND

WIRE

DRY1052S

Figure 3

18 62310

Section 4 Grounding

WARNING

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.

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18. FROM TERMINAL BLOCK BRACKET TO TIMER MOUNTING BRACKET TO DRYER CABINET TOP. TIMER MOUNTING BRACKET TO GRAPHICS PANEL (Mechanical Timer Models Dryers)

Refer to Figure 4

GROUND

WIRES

19. FROM TERMINAL BLOCK BRACKET TO DRYER CABINET TOP TO ELECTRONIC CONTROL TO GRAPHICS PANEL (Electronic Control Models Dryers)

Refer toFigure 4

GROUND

WIRES

DRY1054S

DRY1053S

MECHANICAL

ELECTRONIC

Figure 4

62310 19

Section 5

Service Procedures

WARNING

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.

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

20. CONTROL HOOD ASSEMBLY

Refer to Figures 5, 6, 7, 8 or 9 a. Remove screws (three top and three bottom

holding the hood assembly to the control hood rear panel and cabinet top.

b. Disconnect the wires from the component parts

and carefully remove the components from the control hood assembly.

NOTE: Refer to the appropriate wiring diagram when rewiring the component parts.

END CAP

(Left)

TRI M

STRIP

TO REMOVE CONTROL HOOD END CAPS

Remove end caps by carefully prying caps out of slots in ends of hood. Refer to Figures 5, 6, 7, 8 or

21. ELECTRONIC CONTROL

Refer to Figure 5 for control removal.

IMPORTANT: When removing or installing an electronic control, handle the control by the edges, or the control could become damaged.

NOTE: Refer to the appropriate wiring diagram when rewiring the electronic control.

22. TIMER

Refer to Figure 6, 7, 8 or 9 for timer removal.

NOTE: Refer to the appropriate wiring diagram when rewiring the timer.

SCREW

ELECTRONIC

CONTROL

END CAP

GRAPHICS

PANEL

SCREW

DRY1071S

GRAPHICS PANEL, CONTROL HOOD AND CONTROLS

(Models AG9439, AE9433, NG8839, NE8833, AGE959, AEE953, AGE939 and AEE933)

Figure 5

62310 21

(Right)

Section 5 Service Procedures

END CAP

(Left)

GRAPHICS

PANEL

CONTROL

ASSEMBLY

CLIP

KNOB

TIMER KNOB

SCREW

CONTROL HOOD

ASSEMBLY

TRIM

STRIP

TEMPERATURE

SWITCH

SCREW

SIGNAL

CONTROL

SCREW

TIMER

END CAP

(Right)

SCREW

DRY1072S

GRAPHICS PANEL, CONTROL HOOD AND CONTROLS

(Models AGM659, AEM653, AGM639 and AEM633)

Figure 6

22 62310

Section 5 Service Procedures

END CAP

SCREW

GRAPHICS

PANEL

(Left)

SCREW

CONTROL HOOD

ASSEMBLY

SIGNAL

CONTROL

SCREW

START

SWITCH

SCREW

TIMER

END CAP

(Right)

CLIP

SCREW

TIMER KNOB

ASSEMBLY

CONTROL

KNOB

ASSEMBLY

DRY1073S

GRAPHICS PANEL, CONTROL HOOD AND CONTROLS

(Models NG6819, NE6813, AG5419 and AE5413)

Figure 7

62310 23

Section 5 Service Procedures

END CAP

(Left)

GRAPHICS

PANEL

SCREW

CONTROL HOOD

ASSEMBLY

NUT

SWITCH

BRACKET

SCREW

TEMPERATURE

SWITCH

START

SWITCH

SCREW

TIMER

END CAP

(Right)

SCREW

DRY1074S

CONTROL

KNOB

ASSEMBLY

CLIP

TIMER KNOB

ASSEMBLY

SCREW

TRIM

STRIP

GRAPHICS PANEL, CONTROL HOOD AD CONTROLS

(Models NG4819, NE4813, AG4419, AE4413, AGM459, AEM453, AGM439 and AEM433)

Figure 8

24 62310

Section 5 Service Procedures

WARNING

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

To Test Timer Contact Points

1. Remove six screws (three on top and three at lower front) holding the hood assembly to the control hood rear panel and to the cabinet top. Refer to Figure 6, 7, 8 or 9.

2. Disconnect wires from timer.

3. Set test meter to read OHMS and put meter probes to terminals indicated in table below.

4. Starting with timer knob indicator in OFF position at top of timer, slowly turn timer knob clockwise until indicator is again pointing toward OFF position at top of timer. Meter should register “zero” reading when circuit being tested

NOTE: Refer to appropriate wiring diagram when rewiring timer.

is completed by timer. Refer to appropriate wiring diagram for Timer Cycle Chart showing when circuit is made.

Circuit to be Tested

Timer

No. 59418

Timer

No. 59421

Timer

No. 59497

Timer

No. 61402

Timer Motor L1 and M L2 and T L2 and T L2 and T Signal Control B and P B and B P and B Motor L1 and M L1 and M L1 and M L1 and M Heat L1 and H L2 and H L2 and H High Temperature Heat L2 and H2 Low Temperature Heat (Delicate) L2 and H1 and H2 Push-to-Start

END CAP

(Left)

SCREW

CONTROL HOOD

ASSEMBLY

PUSH-TO-START

BUTTON ASSEMBLY

SCREW

START

SWITCH

TIMER

GRAPHICS

PANEL

TIMER KNOB

ASSEMBLY

SCREW

CLIP

END CAP

(Right)

DRY1075S

GRAPHICS PANEL, CONTROL HOOD AND CONTROLS

(Models AG3419, AE3413, AGM359, AEM353, AGM339 and AEM333)

Figure 9

62310 25

Section 5 Service Procedures

WARNING

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

23. TEMPERATURE SWITCH

Refer to Figure 6 or 8 for switch removal.

NOTE: Refer to the appropriate wiring diagram when rewiring the switch.

To Test Temperature Switch

1. Remove six screws (three on top and three at lower front) holding the hood assembly to the control hood rear panel and to the cabinet top. Refer to Figures 6 or 8.

2. Disconnect all wires from switch.

NOTE: Refer to appropriate wiring diagram when rewiring switch.

3. Set test meter to read OHMS and apply meter leads to the switch terminals:

a. Three Position Heat Switch – Follow the

appropriate wiring diagram for your models dryer. Refer to Section 10 of this manual.

b. Infinite Heat Switch – Meter should rear 10

Ohms (maximum) with the switch in the DELICATE setting. Turn switch full CLOCKWISE direction, meter should read 10,000 Ohms (minimum).

25. START SWITCH

Refer to Figures 7, 8 or 9 for switch removal.

NOTE: Refer to the appropriate wiring diagram when rewiring the switch.

To Test Start Switch (Push or Rotary Type)

1. Remove six screws (three on top and three at lower front) holding the hood assembly to the control hood rear panel and to the cabinet top. Refer to Figures 7, 8 or 9.

2. Set voltometer to Ohms scale and “zero” at appropriate scale.

3. Unplug dryer from electrical supply and disconnect wires from switch terminals.

4. Place meter probes on switch terminals. You should see an “infinite” reading on the meter.

5. With probes attached to switch, proceed as follows: Push Type Switch – Press the start switch button. You should read “0” zero Ohms. Rotary Type Switch – Rotate the switch knob to the right (clockwise). You should read “0” zero Ohms.

26. GRAPHICS PANEL

24. SIGNAL CONTROL

Refer to Figures 6 or 7 for signal control removal.

NOTE: Refer to the appropriate wiring diagram when rewiring the signal control.

Refer to Figures 5, 6, 7, 8 or 9 a. Remove screws (three top and three bottom

holding the hood assembly to the control hood rear panel and cabinet top.

b. Disconnect the wires from the component parts

and carefully remove the components from the

To Test Signal Control

1. Remove six screws (three on top and three at lower front) holding the hood assembly to the control hood rear panel and to the cabinet top.

NOTE: Refer to the appropriate wiring diagram when rewiring the component parts.

Refer to Figures 6 or 7.

2. Disconnect wires from signal control.

3. Set meter to read Ohms and apply probes to terminals of signal control. Meter should rear approximately 1,000 Ohms at all times.

26 62310

control hood assembly.

c. Bend the tabs on the graphic panel (located

inside of control hood) straight out toward rear of hood.

d. Carefully remove the graphics panel off the

front of the control hood.

Section 5 Service Procedures

WARNING

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.

27. LINT FILTER

Refer to Figure 10 Open loading door and lift filter out of air duct.

IMPORTANT: When installing the filter, be sure to plate the filter into the air duct with the word “Front” facing the front of the dryer.

28. LOADING DOOR

Remove four screws holding hinges to door. Refer to Figure 10.

W001R1

LINT

FILTER

HINGE

SCREWS

DRY1055S

FRONT

AIR DUCT

Figure 10

62310 27

Section 5 Service Procedures

WARNING

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

29. INNER AND OUTER DOOR PANELS AND DOOR HANDLE

a. Remove four screws holding hinges to door.

Refer to Figure 10.

b. Remove screws holding handle to door and

separate panels. Refer to Figure 11.

IMPORTANT: Do not over-tighten screws when reinstalling door handle and avoid scratching inner door panel.

30. DOOR STRIKER

Refer to Figure 11

HEX HEAD

SCREW

INNER

DOOR PANEL

a. Remove two screws holding handle to door. b. Spread door panels just far enough to depress

tabs on top and bottom of striker and push out of inner panel.

31. DOOR SEAL

Open loading door and remove seal from inner door panel.

NOTE: When replacing seal, be sure seal is not stretched or distorted. Use a heat resistant adhesive (such as Krazy Glue



) to adhere door seal to inner

door panel.

DOOR

STRIKER

DOOR

SEAL

DOOR

HANDLE

OUTER

DOOR PANEL

PHILLIPS HEAD

SCREW

SPEED

NUT

PHILLIPS HEAD

SCREW

DOOR

HINGE

DRY850S

DOOR

ASSEMBLY

Figure 11

28 62310

Section 5 Service Procedures

WARNING

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

32. FRONT PANEL AND PANEL SEAL

Refer to Figure 12 a. Remove two screws from the bottom edge of

the front panel.

b. Swing the bottom of the panel away from the

dryer to disengage hold-down clips and guide lugs from cabinet top.

c. Disconnect wires from door switch. Refer to

Figure 13.

NOTE: Refer to the appropriate wiring diagram when rewiring the switch.

d. Remove front panel seal from flange around

inside of door opening.

NOTE: Be sure seal is properly positioned when installing on front panel.

HOLD-DOWN

CLIP

GUIDE

LUG

DOOR

SWITCH

FRONT

PANEL SEAL

33. DOOR SWITCH

a. Remove two screws from the bottom edge of

the front panel. Refer to Figure 12.

b. Swing the bottom of the panel away from the

dryer to disengage hold-down clips and guide lugs from cabinet top. Refer to Figure 12.

c. Disconnect wires from door switch. Refer to

Figure 13.

NOTE: Refer to the appropriate wiring diagram when rewiring the switch.

d. Depress tabs on top and bottom of switch and

push out of front panel. Refer to Figure 13.

DOOR

TABS

SWITCH

STRIKER

CATCH

ACCESS

DOOR

SCREW

DRY1057P

DOOR HINGE

LOCKNUT

SCREW

DRY1056S

Figure 13

Figure 12

62310 29

Section 5 Service Procedures

WARNING

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

To Test Door Switch

1. Disconnect wires from door switch. Refer to Figure 13.

NOTE: Refer to appropriate wiring diagram when rewiring switch.

2. Set meter or read Ohms and apply meter probes on switch terminals 1 and 3 with door closed. You should get “zero” reading.

3. Apply probes to terminals 1 and 2 with door closed. The meter should read “infinite”.

4. Open door. Meter should read “infinite” between 1 and 3 and “zero” between 1 and 2.

34. STRIKER CATCH

a. Remove two screws from the bottom edge of

the front panel. Refer to Figure 12.

b. Swing the bottom of the panel away from the

dryer to disengage hold-down clips and guide lugs from cabinet top. Refer to Figure 12.

c. Disconnect wires from door switch. Refer to

Figure 13.

NOTE: Refer to the appropriate wiring diagram when rewiring the switch.

d. Depress tabs on top and bottom of catch and

push out of front panel. Refer to Figure 12.

35. DOOR HINGE

a. Remove two screws from the bottom edge of

the front panel. Refer to Figure 12.

b. Swing the bottom of the panel away from the

dryer to disengage hold-down clips and guide lugs from cabinet top. Refer to Figure 12.

c. Disconnect wires from door switch. Refer to

Figure 13.

NOTE: Refer to the appropriate wiring diagram when rewiring the switch.

d. Remove four screws and locknuts holding

hinges to front panel. Refer to Figure 12.

36. HOLD-DOWN CLIPS AND GUIDE LUGS

a. Remove two screws from the bottom edge of

the front panel. Refer to Figure 12.

b. Swing the bottom of the panel away from the

dryer to disengage hold-down clips and guide lugs from cabinet top. Refer to Figure 12.

c. Disconnect wires from door switch. Refer to

Figure 13.

NOTE: Refer to the appropriate wiring diagram when rewiring the switch.

d. Compress hold-down clips and remove from

slot in top flange of front panel. Refer to Figure 12.

e. Remove four screws holding four guide lugs to

front panel. Refer to Figure 12.

37. BURNER SYSTEM OPERATION (Gas Models)

Refer to Figure 15 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 split-coil valve. Once opened, the holding coil can hold the valve open without assistance from the booster coil. The current shunted around the secondary coil by the sensor, passes through the igniter causing it to get hot.

c. Burner Circuit

In approximately 30 seconds, the igniter attains ignition temperature and the sensor (located on burner housing beside the igniter) contacts open. A circuit is then completed through the secondary valve coil, opening the valve and allowing gas to flow. Ignition is made and the

30 62310

Section 5 Service Procedures

WARNING

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

GAS VALVE COILS

QUICK DISCONNECT

BLOCKS

GAS VALVE

HANDLE

(Shown in

the closed

position)

UNION

NUT

IGNITER

QUICK DISCONNECT

BLOCK

GAS VALVE MOUNTING BRACKET ATTACHING SCREWS

Figure 14

AIR

SHUTTER

BURNER

HOUSING

BURNER HOUSING

ATTACHING SCREWS

BURNER

TUBE

BURNER

TUBE

SCREW

D399S

heat from the burner flame causes the sensor contacts to remain open.

c. Ignition Failure

If flame is not established as sensor contacts open, secondary valve will remain open until

38. IGNITION SYSTEM FEATURES (Gas Models)

Refer to Figure 15 a. Momentary Power Interruption

sensor contacts reclose. Sensor will continue to recycle the igniter and secondary valve (about once per minute) until ignition is made or dryer

is turned off. 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.

b. Flame Failure

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

62310 31

Section 5 Service Procedures

WARNING

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

CARBORANDUM

IGNITER AND

BRACKET

ATTACHING

SCREW

ATTACHING

NORTON

IGNITER AND

BRACKET

SCREW

IGNITER AND

BRACKET

DRY952S

To Test Gas Valve Coils

(Gas Models)

1. Remove disconnect blocks from gas valve coils. Refer to Figure 15.

2. Set test meter to read OHMS and put meter probes to terminals as follows: a. Holding Coil (Refer to Figure 16) –

Terminals 1 and 2 - Meter should read 1365 ± 25 Ohms.

b. Booster Coil (Refer to Figure 16) –

Terminals 1 and 3 - Meter should read 560 ± 25 Ohms.

c. Secondary Coil (Refer to Figure 16) –

Terminals 4 and 5 - Meter should read 1220 ± 50 Ohms.

NOTE: If meter registers any readings other than that listed above, the respective coil should be replaced.

NOTE: Test procedure can be performed on workbench if gas valve, igniter, burner tube and burner housing have been removed from dryer.

Figure 15

To Test Electrical Circuit To Ignition System

(Gas Models)

1. Remove valve wire harness disconnect block from the holding and booster coil. Refer to Figure 15.

2. Plug dryer power cord into wall receptacle, start the dryer in a heat setting (refer to the Operating Instructions supplied with dryer).

3. Set test meter to read AC voltage and apply meter probes into terminals on the dryer harness that would correspond to terminals “1” and “2” on the coil. Refer to Figure 15. Meter should register line voltage in all Fabric settings, except FLUFF which should read “zero” VAC.

4. If meter does not read line voltage in step “3”, check motor switch, thermostat, thermistor, temperature switch or timer.

32 62310

+ 67 hidden pages

Alliance NG8839 Parts Diagram

Table of Contents

Safety Information

Introduction

Model Identification

Troubleshooting

Grounding

Service Procedures