Speed Queen LGK33A*-3058 Parts Diagram

Dryers

Home Laundry

Models LEK33A*-4350 and LGK33A*-3058

Service

D281P

Part No. 505714

November 1998

Section 1 – Safety Information .........................3

Section 2 – Introduction ....................................5

Parts Ordering Information......................................5

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

Model Identification.................................................5

How Your Dryer Works...........................................6

Section 3 – Troubleshooting..............................7

1. Motor Does Not Run .........................................7

2. Unit Stops In Cycle; Quits After The First Few Loads; Has A Burning Smell; Cycles On Motor

Thermal Protector ..............................................8

3. Motor Runs But Cylinder Does Not Turn ........9

4. Motor Does Not Stop ........................................9

5. Heating Assembly Does Not Heat Or Burner

Does Not Ignite ...............................................10

6. Igniter Does Not Glow (Gas Supply Sufficient)

(Gas Models)....................................................11

7. Burner Ignites And Goes Out Repeatedly

(Gas Models)....................................................11

8. Igniter Glows But Burner Does Not Ignite

(Gas Models)....................................................11

9. Heater Assembly Or Burner

Shuts Off Prematurely......................................12

10. Heater Assembly Or Burner Repeatedly

Cycles Off On Limit Thermostat.....................12

11. Heater Assembly Or Burner

Does Not Shut Off ...........................................13

12. Clothes Do Not Dry.........................................13

13. Timer Does Not Advance In Automatic Cycle14

14. Clothes Are Too Hot When

Removed From Dryer ......................................15

15. Ignition Control Flashes ..................................16

Section 4 – Grounding.....................................19

16. Ground Wires From Terminal Block To Rear Bulkhead And From Rear Bulkhead To Cabinet

Top And Control Panel....................................19

17. Ground Wires From Rear Bulkhead To Cabinet

Top And Control Panel....................................19

18. Ground Wires From Dryer Base To Wire

Harness And To Ignition Control . ..................20

Section 5 – Service Procedures.......................21

19. Control Hood Assembly..................................21

20. Control Hood End Caps...................................21

21. Graphic Panel........................ ......................... ..21

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

23. Fabric Selector Switch.....................................22

24. Signal...............................................................22

25. Access Panel....................................................24

26. Lint Filter..................................................... ....25

27. Loading Door And Door Hinge.......................25

28. Inner And Outer Door Panels And Door Pull..26

29. Door Strike ......................................................28

30. Door Seal.........................................................28

31. Front Panel And Panel Seal.............................29

32. Door Switch.....................................................29

33. Door Catch.......................................................29

34. Door Hinge ......................................................31

35. Hold-down Clips And Locators.......................31

36. Burner System Components (Gas Models) .....32

37. Burner Housing And Heat Shroud

(Gas Models)....................................................33

38. Limit Thermostat (Gas Models) ......................34

39. Heating Element (Electric Models).................34

40. Thermostat And Heater....................................35

41. Air Duct...........................................................35

42. Motor And Exhaust Assembly ........................36

43. Cabinet Top .......................................... ...........39

44. Front Bulkhead Assembly...............................40

45. Cylinder Belt....................................................42

46. Cylinder Assembly ..........................................43

47. Cylinder Rollers...............................................45

48. Outlet Cover ....................................................45

49. Rear Bulkhead And Heater Box...................... 46

50. Terminal Block Or Power Cord.......................48

51. Cabinet.............................................................50

52. Base .................................................................51

Section 6 – Adjustments ..................................53

53. Leveling Legs ..................................... ............. 53

54. Burner Flame (Gas Models) ............................54

the expressed written consent of the publisher.

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Section 7 – Test Procedures ............................55

55. Drive Motor.....................................................55

56. Burner System Operation

– Silicon Nitrate Ignition .................................58

57. Electrical Circuit To Ignition System

– Silicon Nitrate Ignition .................................58

58. Gas Valve Coils Check

– Silicon Nitrate Ignition .................................59

59. Flame Sensor Check

– Silicon Nitrate Ignition .................................60

60. Igniter Check – Silicon Nitrate Ignition ..........60

61. Ignition Control – Silicon Nitrate Ignition ......60

62. Thermal Fuse (Electric Models)......................61

63. Heater Assembly (Electric Models).................61

64. Cycling Or Limit Thermostat ..........................61

65. Fabric Selector Switch.....................................62

66. Signal...............................................................62

67. Timer Advance And Timer Contact Points.....62

68. Door Switch.....................................................63

Section 8 –

Internal Wiring Of Dryer Motor Switch.......65

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Section 1

Safety Information

Throughout this manual and on machine decals, you will find precautionary statements (“CAUTION,” “WARNING,” and “D ANGER”) follo wed b y 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 pr operty 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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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.

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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 , distrib utor , service agent or the manuf acturer about any problems or conditions you do not understand.

Locating an Authorized Servicer:

Alliance Laundry Systems LLC 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 LLC also recommends contacting an authorized technician and using authorized factory parts.

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Section 2

D294S

Introduction

Customer Service

If service is required, contact Kleenmaid Customer Care Centre at:

Kleenmaid P.O. Box 5560 Maroochydore South QLD 4558 or Phone FREECALL 1-800-817-479

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.

Model Identification

Information in this manual is applicable to these dryer models.

Model Number

LEK33A*-4350 X LGK33A*-3058 X

* Add Letter To Designate Color. L – Almond W – White

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Electric Heat

Gas Heat

Section 2 Introduction

How Your Dryer Works

LINT

FILTER

CYLINDER

HEATER

DUCT

EXHAUST

FAN

GAS

VALVE

AIR DUCT

D282SE3A

The dryer uses heated air to dry loads of laundry . When the motor is started, the exhaust f an pulls room temperature air in through louvers at the rear of the dryer and over the heat source (b urner 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.

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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.

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. • Close door. Inoperative door switch. • Test switch and replace if inoperative. Timer improperly set. • Reset timer, or try another cycle. Inoperative timer. • Test timer and replace if inoperative. Motor starting functions inoperative.

Doesn’t start; or motor just hums. Motor is dead, won’t run. • Refer to Paragraph 55 to check motor switch, motor

Motor overload protector has cycled. • Wait two or three minutes for overload protector to reset.

Motor centrifugal switch sticky or plugged with lint.

Bind in motor bearing. • Remove belts and determine if motor shaft will spin.

• Check laundry room for blown or loose fuse(s), or open circuit breaker(s). The dryer itself does not have an electrical fuse.

• Check both fuses for electric models.

• Refer to Paragraph 55 to check motor switch and motor windings.

windings, and main windings.

If protector cycles repeatedly, refer to Paragraph 2.

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

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• Replace motor if shaft is locked up.

Loose motor wire harness connection block. • Firmly press connection block onto motor switch. Broken, loose, or incorrect wiring. • Refer to wiring diagram. Power cord is miswired. • Refer to wiring diagram for the correct wiring.

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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. UNIT STOPS IN CYCLE; QUITS AFTER THE FIRST FEW LOADS; HAS A BURNING SMELL; CYCLES ON MOTOR THERMAL PROTECTOR

POSSIBLE CAUSE TO CORRECT

Incorrect voltage. • See nameplate in door well for correct voltage.

• Refer to INSTALLATION INSTRUCTIONS (supplied with dryer) for electrical requirements.

Clothes load too large. • Remove part of load. Maximum load: dryer cylinder one

half full of wet clothes.

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

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• 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.

Broken, loose or incorrect wiring. • Refer to wiring diagram. Motor switch functions inoperative. Short in motor

• Refer to Paragraph 55 to check switch and windings.

winding. Clothes caught in fan. • Check fan for obstruction.

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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.

3. MOTOR RUNS BUT CYLINDER DOES NOT TURN

POSSIBLE CAUSE TO CORRECT

Motor drive pulley loose. • Tighten pulley. Belt not installed on pulley. • Install belt. Refer to Figure 20. Broken cylinder belt. • Replace belt. Clothes cylinder is binding. • Check cylinder for binding and “out of round” condition.

• Check front and rear bulkheads for warping.

• Check cylinder rollers for binding.

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• Check cylinder seals and glides for wear or damage. Broken, weak or disconnected idler lever spring. • Replace or reconnect spring. Refer to Figure 21. Belt routed on wrong side of idler lever. • Reroute belt. Refer to Figure 20. Oil on cylinder . • Wipe oil from cylinder. Belt is “inside out.” • Reinstall belt with ribbed surface against cylinder. Idler arm is binding. • Add grease between idler arm and motor mount.

• Replace idler arm and bolt if needed. Dryer is overloaded. • Remove some laundry from dryer. Wrong motor. • Refer to parts manual for correct motor part number. Wrong belt used on dryer. • Check belt part number against correct part number in the

Parts manual.

• Replace belt if needed. Bent idler arm. • Replace idler arm.

4. MOTOR DOES NOT STOP

POSSIBLE CAUSE TO CORRECT

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

lint.

• Remove dust or lint and spray with “SLYDE,” Part No.

131P4, to clean and lubricate. Inoperative door switch. • Test switch and replace if inoperative. Inoperative timer – nonmetered models. • Test timer and replace if inoperative.

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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.

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

POSSIBLE CAUSE TO CORRECT

Improper or inadequate exhaust system. • See INSTALLATION INSTRUCTIONS (supplied with

dryer) for exhaust requirements. Use of plastic or thin foil exhaust duct. • Replace with solid or rigid flexible metal exhaust duct. Blown house fuse or tripped circuit breaker. • Check fuses or circuit breakers. A 240 Volt dryer uses two

fuses. Make sure both fuses are good. Temperature selector switch set at FLUFF, or

• Reset or test switch and replace if inoperative.

inoperative. Timer improperly set (set in a cool-down period, or

• Reset timer. Try another cycle.

a no heat cycle). Inoperative limit thermostat. • Test thermostat and replace if inoperative. Inoperative drive motor switch. • Test switch and replace if inoperative. Electric Models: Inoperative heater assembly . • Test heater assembly and replace if cold Ohms do not read

between 9 and 10.5 Ohms. Electric Models: Inoperative thermal fuse. • Test thermal fuse and replace if inoperative. Gas Models: Insufficient gas supply. • Check gas shut-off valve in dryer and main gas line valve.

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

Gas Models: Inoperative gas v alve coils. • Test coils (Paragraph 58) and replace if inoperative. Gas Models: Inoperative flame sensor. • Test flame sensor (Paragraph 59) and replace if

inoperative.

Gas Models: Inoperative igniter. • Test igniter (Paragraph 60) and replace if inoperative. Gas Models: Harness not properly connected to gas

controls.

• Check harness connections to gas valve coils, sensor and main harness.

• Reconnect as required.

Gas Models: Restricted gas flow in gas orifice. • Clean out gas orifice. Gas Models: Tripped high limit thermostat. • Reset thermostat. Inoperative cycling thermostat. • Test thermostat and replace if inoperative. Inoperative timer. • Test timer and replace if inoperative. Broken, loose, or incorrect wiring. • Refer to wiring diagram.

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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.

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. Flame sensor failed with contacts open. • Replace flame sensor. Igniter broken or open. • Replace igniter.

7. BURNER IGNITES AND GOES OUT REPEATEDLY (GAS MODELS)

POSSIBLE CAUSE TO CORRECT

Improper or inadequate exhaust system. Weather hood flapper restricted.

• See INSTALLATION INSTRUCTIONS (supplied with dryer) for exhaust requirements.

Insufficient gas supply. • Check gas supply and pressure.

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• Make sure gas shut-off valve is turned on.

Cracked igniter. • Replace igniter and bracket. Inoperative or intermittent gas v alve coils. • Check coils (P ar a gr aph 58) and replace appropriate coils.

8. IGNITER GLOWS BUT BURNER DOES NOT IGNITE (GAS MODELS)

POSSIBLE CAUSE TO CORRECT

Open secondary coil or holding coil. • Replace gas valve (in-warranty), or replace coils

(out-of-warranty). Refer to Paragraph 58.

Insufficient gas supply. • Check gas supply and pressure.

• Make sure gas shut-off valve is turned on.

Igniter and bracket installed improperly on burner tube assembly.

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

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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.

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 main gas line shut-off 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 “Gas Burner Conversion Procedures” supplied in gas burner conversion kit.

Gas Models: Improperly adjusted burner flame. • Adjust flame. Refer to Paragraph 54. 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: Flame sensor contact closing. • Replace flame sensor (Paragraph 36, step “d”) or adjust

burner flame. Refer to Paragraph 54.

Inoperative cycling thermostat. • Test thermostat and replace if inoperative. Inoperative timer. • Test timer and replace if inoperative. Broken, loose, or incorrect wiring. • Refer to wiring diagram.

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

POSSIBLE CAUSE TO CORRECT

External exhaust system longer or providing greater restriction than recommended.

• Refer to INSTALLATION INSTRUCTIONS (supplied with dryer) for exhaust system requirements.

Use of plastic or thin foil exhaust duct. • Replace with solid or rigid flexible metal exhaust duct. Clogged lint filter. • Clean lint filter. Lint in internal dryer ductwork. • Disassemble dryer ductwork and clean. Lint or other obstruction in external exhaust system. • Disassemble and clean exhaust system. 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 38. Air leak around loading door. (Door not sealing due

• Replace seal or catch.

to damaged seal or inoperative door catch.) Air leak at blower seal. • Check and replace seal if necessary. Air leak at cylinder seal(s). • Check and replace seal(s) if necessary.

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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.

11. HEATER ASSEMBLY OR BURNER DOES NOT SHUT OFF

POSSIBLE CAUSE TO CORRECT

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

Motor does not stop. • Refer to Paragraph 4. Incorrect wiring. • Refer to 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. Laundry load too large. • Remove part of load. Maximum load: Dryer cylinder one

half full of wet clothes. Laundry load too small. • Add one or two bath towels to load. Excessive lint on lint filter. • Clean lint filter. Automatic cycle. • Adjust timer knob to More Dry setting. 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.

Improper belt installation (low RPM). • Check for proper installation. Refer to Figure 20.

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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.

13. T IMER DOES NOT ADVANCE IN AUTOMATIC CYCLE

POSSIBLE CAUSE TO CORRECT

Inoperative cycling thermostat. • Test thermostat and replace if inoperative. Inoperative resistor (Electric Models). • Test resistor (Paragraph 67, step “d”) 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 wiring diagram. Timer motor is inoperative. • Select a drying cycle and activate start switch.

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• Rotate timer knob until signal sounds.

• Release timer knob.

• Signal should stop within ten minutes. If not, replace timer.

• Refer to Paragraph 67.

Inoperative seals (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. Seal between upper and lower air ducts.

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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.

14. CLOTHES ARE TOO HOT WHEN REMOVED FROM DRYER

POSSIBLE CAUSE TO CORRECT

Improper or inadequate exhaust system. • Refer to INSTALLATION INSTRUCTIONS (supplied

with dryer) for exhaust requirements.

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. Inoperative seals (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. Seal between upper and lower air ducts.

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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.

15. I GNITION CONTROL FLASHES (Figure 1)

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 1 minute, the

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

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FLASH CODE

Constant Light

One Flash

Four Flashes

Five Flashes

Six Flashes

Seven Flashes

POSSIBLE CAUSE TO CORRECT

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

control. Air in gas line. • Purge air from gas line. Flame sensor coated with Aluminum

• Wipe sensor clean or replace sensor if necessary.

Oxide. 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. 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

• Check igniter and all circuits, replace if necessary.

measurement circuit. 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 flame sensor. • Replace flame sensor/igniter. 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. Loose or disconnected wiring. • Check all wiring leading to, or coming from, the

control module for secure connections. Flame sensor and/or appliance not properly

grounded.

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

continued

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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.

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FLASH CODE

Rapid Flashing

POSSIBLE CAUSE TO CORRECT

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.

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DISCONNECT POWER

BEFORE SERVICING

WHITE - ROGERS DIV.

EMERSON ELECTRIC CO.

MODEL 50A72-203.

DISCONNECT POWER

RED

LIGHT

DIAGNOSTIC INDICATOR

DISCONNECT POWER

BEFORE SERVICING

DISCONNECT POWER

BEFORE SERVICING

DISCONNECT POWER

BEFORE SERVICING

DISCONNECT POWER

BEFORE SERVICING

SERVICING SERVICEING OK

WARNING

DISCONNECT POWER

DISCONNECT POWER BEFORE

IMPORTANT

CONTROL

D194SE3B

505714

Figure 1

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.

16. GROUND WIRES FROM TERMINAL BLOCK TO REAR BULKHEAD AND FROM REAR BULKHEAD TO CABINET TOP AND CONTROL PANEL. (Figure 2).

TO CABINET TOP AND CONTROL PANEL

W001R1

GROUND

WIRES

REAR

BULKHEAD

TERMINAL

BLOCK

D234SE3C

Figure 2

17. GROUND WIRES FROM REAR BULKHEAD TO CABINET TOP AND CONTROL PANEL. (Figure 3)

GROUND

WIRE

CABINET

TOP

CONTROL

PANEL

REAR

BULKHEAD

505714

D237SE3A

Figure 3

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.

18. GROUND WIRES FROM DRYER BASE TO WIRE HARNESS AND TO IGNITION CONTROL . (Gas Models With Silicon Nitrate Ignition System – Figure 4).

IGNITION

CONTROL

DISCONNECT POWER BEFORE

SERVICINGGDGHDHJD DHJD DHD HD

HD HD HDGFJGFKGK GFJHGJ FHFH

DISCONNECT POWER

BEFORE SERVICING

DISCONNECT POWER

BEFORE SERVICING

DISCONNECT POWER

BEFORE SERVICING

DIAGNOSTIC INDICATOR

DISCONNECT POWER

BEFORE SERVICING

DISCONNECT POWER

BEFORE SERVICING

F KJFJF KH GJHJF JDAPALS DK KF

DISCONNECT POWER

BEFORE SERVICING

WARNING

DISCONNECT POWER

BEFORE SERVICING

WHITE - ROGERS DIV.

EMERSON ELECTRIC CO.

MODEL 50A72-203.

DISCONNECT POWER BEFORE

SERVICING SERVICEING OK

IMPORTANT

WIRE

HARNESS

GROUND

WIRE

GROUND

SCREW

W001R1

GROUND

TERMINAL

DRYER

BASE

D346PE3C

Figure 4

505714

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

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

19. CONTROL HOOD ASSEMBLY (Figure 5)

a. Remove three screws holding control hood

assembly to control hood rear panel.

b. Rotate assembly forward to access inner

wiring.

c. Disconnect wiring from inner components and

carefully remove components from control hood assembly.

NOTE: Refer to wiring diagram when rewiring component parts.

d. Rotate control hood assembly forward and lift

to free assembly from hold-down clips.

20. CONTROL HOOD END CAPS (Figure 5)

a. Remove three screws holding control hood

assembly to control hood rear panel.

b. Rotate assembly forward to access inner

wiring.

c. Disconnect wiring from inner components and

carefully remove components from control hood assembly.

NOTE: Refer to wiring diagram when rewiring component parts.

d. Remove two screws holding end cap to end of

support control panel.

e. Carefully pry end cap from support control

panel.

NOTE: To re-assemble, reverse the steps.

21. GRAPHIC PANEL (Figure 5)

a. Carefully pull switch knobs and timer knob off

shafts.

b. Remove three screws holding control hood

assembly to control hood rear panel.

c. Rotat e assembly forward to access inner

wiring.

d. Disconnect wiring from inner components and

carefully remove components from control hood assembly.

NOTE: Refer to wiring diagram when rewiring component parts.

e. Remove three screws holding top cover to

support control panel. Rotate top cover forward.

f. Remove screws holding end caps to support

control panel and pry off caps.

g. With graphic panel facing forward, rotate

control hood assembly forward to access tabs holding graphic panel.

h. Bend graphic panel tabs straight out toward rear

of hood and pull panel away from support control panel.

NOTE: To re-assemble, reverse the steps.

22. TIMER (Figure 5)

a. Pull timer knob off timer shaft.

b. Remove the three screws holding the control

assembly to the control hood rear panel.

c. Rotat e assembly forward to access inner

wiring.

d. Disconnect wiring from timer and carefully

remove timer from control hood assembly.

505714

NOTE: Refer to wiring diagram when rewiring component parts.

+ 46 hidden pages

Speed Queen LGK33A*-3058 Parts Diagram

Table of Contents

Model Identification