Alliance Laundry Systems BT3LLFSG401UW01, BT3LXFSG401UN01, BT3LLFSP401UN01, BT3LLFSP401UW01, BT3LXFSG401UW01 Troubleshooting Manual

Commercial

Stacked Washer/

Dryers

Refer to Page 6 for Model Numbers

Troubleshooting

www.comlaundry.com

SWD453C

Part No. 803404

May 2010

Table of

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

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

Contents

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

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

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

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

Theory of Operation ..............................................................................7

Section 3 – General Troubleshooting...................................................10

1. Troubleshooting Coin Drop........................................................10

2. Washer Motor Circuit .................................................................14

3. Troubleshooting Knocking Noise ...............................................14

5. Troubleshooting LEDs on Washer Inverter Controls

Starting Machine Serial No. 0911014603...................................16

6. No Spin (Washer)........................................................................16

Section 4 – Dryer Troubleshooting ......................................................18

7. Dryer Motor Does Not Run ........................................................19

8. Dryer Stops In Cycle; Quits After The First Few Loads;

Has A Burning Smell; Cycles On Motor Thermal Protector......20

9. Dryer Motor Runs But Cylinder Does Not Turn ........................21

10. Dryer Motor Does Not Stop........................................................22

11. Dryer Runs Only When Door is Open........................................23

12. Dryer Heating Assembly Does Not Heat or Burner

Does Not Ignite...........................................................................24

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

Gas Dryer Models.......................................................................26

14. Burner Ignites and Goes Out Repeatedly –

Gas Dryer Models.......................................................................27

15. Igniter Glows But Burner Does Not Ignite –

Gas Dryer Models.......................................................................28

16. Dryer Heater Assembly Or Burner Shuts Off Prematurely ........29

17. Dryer Heater Assembly or Burner Repeatedly Cycles

Off On Limit Thermostat............................................................30

18. Dryer Heater Assembly or Burner Does Not Shut Off...............32

19. Clothes Do Not Dry in Dryer......................................................33

20. Clothes Are Too Hot When Removed From Dryer ....................34

21. Excessive Chattering Or Vibrating Noise in Dryer ....................35

22. Excessive Humming Or Whistling Noise in Dryer.....................36

the expressed written consent of the publisher.

803404 1

Section 5 – Washer Electronic Control Troubleshooting ..................37

23. Error Code Listing ......................................................................37

24. PDA Does Not Communicate With Control...............................40

25. Coins Ignored When Entered......................................................41

26. No Visible Display on Control....................................................42

27. Washer Will Not Start – “door” Displayed.................................44

28. Washer Will Not Start – “E dL” on Display...............................46

29. Washer Will Not Fill

(Machine Empty, No “E SP” on Display)...................................48

30. Washer Overflows.......................................................................50

31. Pump or Drain Valve Does Not Operate ....................................52

32. Serial Communication Error (“E SP” on Display)......................54

33. Motor Does Not Run (“E dF” on Display) .................................56

34. Washer Will Not Heat (Models Equipped with Heater)

(“E oP” or “E SH” Displayed)....................................................58

35. Washer Will Not Heat (Models Equipped with Heater)

(3 Phase Heater Machines Only) ................................................60

Section 6 – Dryer Electronic Control Troubleshooting......................62

36. Error Codes .................................................................................63

37. Coins Ignored When Entered......................................................64

38. No IR Communication................................................................65

39. No Display ..................................................................................66

40. Door Open...................................................................................68

41. Motor Will Not Start...................................................................70

42. No Heat (Electric).......................................................................72

43. No Heat (Gas) .............................................................................74

Section 7 – Adjustments........................................................................76

44. Cabinet Leveling Legs................................................................76

45. Washer Loading Door.................................................................77

46. Washer Motor Belt Tension........................................................78

47. Washer Door Catch.....................................................................79

48. Shipping Braces ..........................................................................81

49. Burner Flame (Gas Models)........................................................82

50. Cleaning Non-Electronic Coin Drop...........................................83

51. Cleaning Electronic Coin Drop...................................................85

Section 8 – Dryer Test Procedures.......................................................88

52. Drive Motor.................................................................................88

53. Motor Switch...............................................................................91

54. Burner System Operation............................................................93

55. Electrical Circuit To Ignition System (Gas Models) ..................94

56. Gas Valve Coils Check (Gas Models) ........................................94

57. Sensor Check (Gas Models)........................................................95

58. Igniter Check (Gas Models)........................................................95

59. Thermal Fuse (Electric Models) .................................................96

60. Heater Assembly (Electric Models)............................................96

61. Cycling or Limit Thermostat.......................................................96

62. Door Switch ................................................................................97

Section 9 – Internal Wiring of Dryer Motor Switch...........................98

2 803404

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.

a 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.

803404 3

Safety Information

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

• Disconnect all electric power to the machine and accessories before servicing.

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

• Never start machine with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be

reconnected to ensure that the machine is properly grounded.

• Washer motor not grounded! Disconnect electric power before servicing motor.

W502

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 803404

Section 2

SWD1165P

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

For technical assistance, call either of the numbers listed below:

(920) 748-3121 Ripon, Wisconsin

+32 56 41 20 54 Wevelgem, Belgium

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.

803404 5

Introduction

Model Identification

Information in this manual is applicable to these washer/dryer models.

BT3LLFSG401UN01 BT3LLFSG401UW01 BT3LLFSP401UN01 BT3LLFSP401UW01 BT3LXFSG401UN01 BT3LXFSG401UW01 BT3LXFSP401UN01 BT3LXFSP401UW01 HTELXFSP281CW01 HTELXFSP291CW01 HTELYFSP281CW01 HTELYFSP291CW01 HTGLXFSP091CW01

JT1DEFSP411EW01 JT1DGFSP411EW01 JT1DMFSG411EN01 JT2DEFSP411EW01 JT2DGFSP411EW01 JT2DMFSG411EN01 JTEDEFSP301EW01 JTGDEFSP301EW01 NT1LXFSP401UN01 NT1LXFSP401UW01 NT2LLFSP401UN01 NT2LLFSP401UW01 NT2LXFSP401UN01 NT2LXFSP401UW01 NT3LLFSP401UN01 NT3LLFSP401UW01 NT3LXFSP401UN01 NT3LXFSP401UW01 NTHLXFSP571NW01 NTHLYFSP571NW01

STELCFSP171TW01 STELXFSP171TW01 STELYFSP171TW01 STGLCFSP111TW01 STGLCFSP111TWNA STGLXFSG111TW01 STGLXFSP111TW01 STGLYFSP111TW01 STGLYFSP111TWNA

6 803404

Theory of Operation

SWD1687S

W

A

S

H

E

R

D

R

Y

E

R

Pressure Switch

(Located inside

control cabinet)

Electronic

Control

(Mounted to back

side of control panel)

Electric

Drain Pump

(or Drain Valve)

Motor

Outer

Tub

Inner

Basket

Mixing

Valve

Exhaust Fan

Inverter Control

(Mounted to base

of washer)

Motor

Cylinder

Air Duct

Lint

Filter

Heating Element (Electric Models)

Introduction

803404 7

Introduction

General (Dryer)

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

General (Washer)

This frontload washer provides some of the same principles of operation as the typical topload washers. It senses water level, it dispenses the desired laundry detergent, agitates the clothes for good cleaning action, removes the water out of the washer and spins the clothing in preparation for the dryer.

The difference in operation is primarily the rotational washing agitation created for the horizontal basket and drum. This agitation tumbles the clothes in a clockwise, pause, and counter-clockwise direction. This reversing tumbling action provides an efficient washing process and requires less laundry detergent and less water.

The cycle begins by locking the loading door after the vend is satisfied. The type of cycle and water temperature are determined by the appropriate pads on the electronic control.

The inner basket starts agitating during the wash water fill. A column of air is trapped in a pressure bulb and hose. The air pressure continues to increase as the inner basket fills with water until it is great enough to activate the pressure switch which then causes the wash fill to stop.

washer goes into a final high spin cycle to extract as much water as possible from the clothing to prepare them for the dryer. The spin speeds and duration of this final high spin cycle are determined by the type of wash cycle selected (refer to Table 1 or Table 2).

NOTE: Washer may not reach 1000 RPM because of an out-of-balance condition. Control may limit speed to 850, 650 or 500 RPM depending on severity of out-of-balance condition.

Models Through Serial No. 0911014602

Regular Perm Press Delicate

650

RPM 1000

RPM

3

minutes

3

minutes

Tab le 1

4

minutes

2

minutes

4

minutes

0

minutes

Models Starting Serial No. 0911014603

Regular Perm Press Delicate

500

RPM

650

RPM 1000

RPM

0

minutes

3

minutes

3

minutes

Tab le 2

0

minutes

6

minutes

0

minutes

4

minutes

0

minutes

0

minutes

The agitate cycle tumbles the clothing in a clockwise direction for a period of 15 seconds, pauses for nine seconds and then tumbles the clothing in a counterclockwise direction for 15 seconds. This agitation continues until the end of the wash cycle. The machine stops agitating and turns on the pump or drain valve which removes the wash water.

Upon completion of the wash cycle, the machine goes into a rinse cycle. Fresh cold water is brought into the inner basket via the mixing valve until the pressure switch shuts off the water while agitating. The rinse cycle consists of agitation for a predetermined amount of time then a spin mode with the pump running where the machine goes into a series of 4 short 500 RPM spins. Two of these rinse cycles will normally take place with a third extra rinse cycle being optional. After all the rinse cycles have been completed, the

8 803404

Technical (Washer)

The basic operational system of this washer consists of the electronic control, the inverter control, pressure switch, water valves, electric pump (or drain valve) and A.C. motor.

The electronic control performs all control and timing functions like the timer in a topload washer. The electronic control sends simple speed and output commands to the inverter control via serial communication. The electronic control powers the door lock, pump (or drain valve) and the inverter control.

The inverter control powers the A.C. motor and performs all motor control functions. The inverter control also powers the water and dispenser valves and passes the pressure switch status to the electronic control. The inverter control is powered through the door switch, door lock switch and electronic control. The inverter control also alerts the electronic control to any errors in the motor.

Introduction

The inverter control uses a speed sensor on the motor to measure the drum RPM. Before entering any spin step the inverter control measures the RPM of the drum to sense out-of-balance. The inverter control will try to redistribute the clothes if an out-of-balance condition exists the inverter control will limit the spin speed to several speeds depending on the severity of the out-of-balance condition. If the out-of-balance condition is severe enough the inverter control will limit speed to 90 RPM and will not spin.

NOTE: An additional out-of-balance switch is used to detect any out-of-balance condition during spins. If this switch opens during a spin step, the inverter control immediately stops and then restarts the spin.

803404 9

Section 3

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

• Disconnect all electric power to the machine and accessories before servicing.

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

• Never start machine with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be

reconnected to ensure that the machine is properly grounded.

• Washer motor not grounded! Disconnect electric power before servicing motor.

W502

WARNING

DRY2B

Additional coins

following path to

sensor

Coin Drop

Sensor

Coin in

Coin Slot

General Troubleshooting

1. Troubleshooting Coin Drop

a. Non-Electronic Coin Drops:

When coin is placed into coin slot, the coin should roll down drop and be heard dropping into coin vault. If coin does not fall into coin vault or if coin drop sensor does not register that coin has been entered, follow troubleshooting instructions on following page. Refer to Figure 1 for path that coin follows when working properly.

IMPORTANT: Never use oil to correct coin drop problems. Oil residue will prevent coins from rolling properly.

IMPORTANT: Do not bend or damage mechanical parts within coin drop.

Figure 1

10 803404

Troubleshooting Coin Drop

Is

machine level?

(Machines that aren't

level may prevent coins from

following through required

check stages

of drop.)

No

Yes

No

Refer to wiring

diagram for

proper connections.

Yes

No

Yes

SWD1714S

Is proper

electrical power

supplied to coin drop?

(Incorrect electrical connection

may prevent coins from

registering in

coin drop.)

Is coin drop

clean? (Residue or

lint build-up may prevent

coins from following through

required check stages

of drop.)

Refer to

Adjustments section

for instructions on cleaning

drop.

Replace

coin drop sensor.

Refer to

Installation Instructions

for instructions

on leveling machine.

Do coins

fall freely

through drop?

No

Replace

coin drop.

Yes

General Troubleshooting

803404 11

General Troubleshooting

MIX7B

Coin Drop Cover

Coin Return Button

Tension Spring

Coin Drop Cover

Cover Catch

Tension Spring

Small Flathead Screwdriver

Right Side of Tension Spring

Left Tab

b. Electronic Coin Drops:

If coin drop is not accepting coins, perform the following:

(1) Clean coin drop. Refer to Paragraph 55. (2) On electronic coin drops with an old-style

tension spring (shown in Figure 2 and Figure 4), test and replace tension spring using the following instructions.

Remove Coin Drop From Machine

(1) Disconnect electrical power to machine and

drop.

(2) Remove coin drop from machine.

Test Tension Spring

(1) Push coin return button to open and close

coin drop cover to clear possible coin jams. Refer to Figure 2.

(3) If coin drop now operates properly, replace

tension spring using instructions on following pages.

Replace Tension Spring

(1) Move tension spring downward until cover

catch is free. Refer to Figure 4.

DRY2088N

Figure 4

Figure 2

(2) Manually hold down coin drop cover and

insert coin. Refer to Figure 3.

MIX6B

(2) Open cover for coin drop. (3) Place a small flathead screwdriver under

right side of tension spring and lift up. Refer to Figure 5.

MIX2B

Figure 5

(4) Use screwdriver to move spring

approximately 3 mm to left.

(5) Lift spring over left tab. Refer to Figure 5.

Figure 3

12 803404

General Troubleshooting

MIX3B

Tabs

Center Tab

MIX4B

Clip

MIX8B

Slot

MIX5B

Small Flat

Screwdriver

Center

Tab

Left Tab

(6) Rotate spring clockwise, 40 to 60 degrees,

until it is free from right tabs. Refer to Figure 6.

Figure 6

(7) Use screwdriver to remove spring from

center tab. Refer to Figure 6. (8) Lift spring, with attached clip, off drop. (9) Remove clip from spring. Refer to

Figure 7.

(12) Use a small flathead screwdriver to push

spring under center tab. Refer to Figure 9.

Figure 9

(13) Lift spring gently to place in position under

left tab.

(14) Push spring to right until it snaps into

position. Refer to Figure 5. (15) Close coin drop cover. (16) Move tension spring over cover catch.

Refer to Figure 4.

Figure 7

(10) Attach clip to new tension spring, Part No.

209/00598/02.

(11) Place clip, installed on spring, in slot on

coin drop. Refer to Figure 8.

Figure 8

803404 13

(1) Reinstall coin drop into machine. (2) Reconnect electrical power to machine and

drop.

(3) Add a coin to drop to verify that coin drop

is operating properly and that electrical

connection is working properly.

Reinstall Coin Drop Into Machine

General Troubleshooting

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

• Disconnect all electric power to the machine and accessories before servicing.

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

• Never start machine with any guards/panels removed.

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

• Washer motor not grounded! Disconnect electric power before servicing motor.

W502

WARNING

Windings

Tach. Circuit

White

Gray

Red

54321

Resistance Values:

Tachometer Circuit: Terminals 4–5 Approx. 115 ohms

Windings:

Terminals 1–2, 2–3, 1-3 Approx. 4.5 ohms

2. Washer Motor Circuit

3. Troubleshooting Knocking Noise

If a frontload washer produces a noise similar to a knock on a door, it might be due to a flat spot on the belt. The knocking sound is made when the flat spot hits the pulley. The knocking may occur

14 803404

during a pulse spin and fade after reaching a higher RPM.

To correct this condition, replace the belt.

General Troubleshooting

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

• Disconnect all electric power to the machine and accessories before servicing.

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

• Never start machine with any guards/panels removed.

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

• Washer motor not grounded! Disconnect electric power before servicing motor.

W502

WARNING

Wire Clamp

First Section of Tape 4.5 In. (11.43 cm) From End of Terminals

Third Section of Tape 14 In. (35.56 cm) From End of Terminals

Wire Tie

FLW1842B

45 degrees

Cut Off Broken Wires Here

4. No Spin Due to Out-of-Balance Switch Wiring Problem Starting Serial Nos. Beginning 0307

A “no spin” condition could be the result of an open circuit in the wire harness or out-of-balance switch. First, check that the harness is still connected to the out-of-balance switch. The out-of-balance switch is a normally closed switch. (continued)

803404 15

Figure 10

General Troubleshooting

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

• Disconnect all electric power to the machine and accessories before servicing.

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

• Never start machine with any guards/panels removed.

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

• Washer motor not grounded! Disconnect electric power before servicing motor.

W502

WARNING

FLW1844B

LEDs

If broken wires are found at the out-of-balance switch wire support, cut off portion of wires as shown in Figure 10 and add new UL approved terminals.

5. Troubleshooting LEDs on Washer Inverter Controls Starting Machine Serial No.

a. To test the electrical circuit, disconnect

electrical power to the washer.

b. Remove the “H1” connector from the inverter

control assembly.

c. Use an Ohm meter to check the black/white to

violet/white wires. Circuit should read closed. An open reading indicates a bad switch or wire harness problem.

d. Flex the harness at the plastic wire clamp and

test continuity. If the base wire harness has an open circuit it MUST be replaced or the broken wires must be repaired with UL approved terminals.

e. After replacing or repairing the wire harness,

wrap electrical tape around wires in two locations as indicated below and in Figure 10. Then secure the harness wires to the original factory locations using clamp and wire tie. Refer to Figure 10.

(1) The plastic wire clamp should be angled

toward the switch at 45 degrees.

(2) The clamp should wrap around the first

section of tape on the harness, which should be placed approximately 4.5 inches (11.43 cm) from end of terminals.

(3) The harness should be secured to the

inverter control shield with a wire tie.

(4) The tie should wrap around the third section

of tape on the harness, which should be placed approximately 14 inches (35.56 cm) from end of terminals. Refer to Figure 10.

16 803404

0911014603

There are three LEDs on the control to assist with troubleshooting (refer to Figure 11):

• Green LED on constant = 5VDC power supply present

• Green LED flashing one second on/one second off = inverter control power up

• Red LED flashing four times/second = inverter control is communicating with front end control

Figure 11

6. No Spin (Washer)

A no spin condition is not caused by intermittent operation of the motor or motor control (inverter assembly). DO NOT replace these components for no spin complaints if the unit passes the following procedure:

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

• Disconnect all electric power to the machine and accessories before servicing.

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

• Never start machine with any guards/panels removed.

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

• Washer motor not grounded! Disconnect electric power before servicing motor.

W502

WARNING

6. No Spin (continued)

No spin.

FLW1789S

Allow unit to go

through complete

final spin cycle.

Does unit spin at

high speed?

Motor and motor control board are operating properly. Do not replace them.

Yes

With no load, rapid advance to final spin or select spin only cycle. Close door and start washer.

BEFORE replacing the motor control board, conduct the following tests.

No

Is pressure

switch or pressure

switch wiring

inoperative?

Is load

out-of-

balance?

Unit makes three attempts to rebalance out-ofbalance loads. If all attempts fail, final high speed spin is aborted. ONLY proper loading can correct problem.

Yes

Is there a slow

drain, clogged

pump or

oversudsing

condition?

Pressure switch must register an "empty" condition before unit will enter spin. Clear drain or pump.

Yes

Replace switch and/or wiring.

No

Does unit spin now?

No

Check for broken out-ofbalance switch wires. Refer to

No Spin Due to Out-of-Balance Switch Wiring Problem Starting Serial Nos. Beginning 0307

paragraph.

Yes

General Troubleshooting

803404 17

Section 4

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

• Disconnect all electric power to the machine and accessories before servicing.

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

• Never start machine with any guards/panels removed.

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

• Washer motor not grounded! Disconnect electric power before servicing motor.

W502

WARNING

Dryer Troubleshooting

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

18 803404

7. 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.

No

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 start switch and start windings. Check for foreign objects jammed in blower wheel.

Yes

Is motor dead,

won't run?

Refer to

Adjustments

section to check start switch, start windings and main windings.

Yes

Has motor

overload

protector

cycled?

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

Yes

Is motor

centrifugal

switch sticky

or plugged

with lint?

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

Yes

No

Is there a bind

in motor

bearing?

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

Yes

No

SWD1689S

Yes

No

Is motor wire

harness

connection

block loose?

Firmly press connection block onto motor switch.

Is wiring

broken, loose

or incorrect?

Refer to wiring diagram.

Is power cord

miswired?

Refer to wiring diagram for correct wiring.

No

Yes

Dryer Troubleshooting

803404 19

Dryer Troubleshooting

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?

No

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.

No

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?

No

Is a clothes

item caught in

fan?

Check fan for obstruction.

Yes

No

SWD1690S

Refer to

Adjustments

section to check switch and windings.

No

Yes

No

8. Dryer Stops In Cycle; Quits After The First Few Loads; Has A Burning Smell; Cycles On Motor Thermal Protector

20 803404

9. Dryer Motor Runs But Cylinder Does Not Turn

Dryer motor runs but cylinder does not turn.

Is motor drive

pulley loose?

Tighten pulley.

Is belt

installed on

pulley?

No

Install belt.

No

Is cylinder

belt broken?

Replace belt.

Yes

Is clothes

cylinder

binding?

No

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

No

Is dryer

overloaded?

Remove some laundry from dryer.

Yes

No

SWD1691S

Yes

No

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.

No

Yes

Is belt routed

on wrong side

of idler lever?

Reroute belt.

No

Yes

Dryer Troubleshooting

803404 21

Dryer Troubleshooting

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?

No

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

Yes

Is door switch

inoperative?

Test switch and replace if inoperative.

No

Yes

SWD1692S

10. Dryer Motor Does Not Stop

22 803404

11. Dryer Runs Only When Door is Open

Dryer runs only when door is open.

Is door switch

miswired?

Rewire door switch. Refer to wiring diagram.

Yes

SWD1693S

Replace door switch.

No

Dryer Troubleshooting

803404 23

Dryer Troubleshooting

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?

No

Replace with rigid or semirigid metal exhaust duct.

Yes

Is house fuse

blown or

circuit breaker

tripped?

Check fuses or circuit breakers. A 240 Volt electric heat dryer uses two fuses. Make sure both fuses are good.

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

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.

Yes

No

Gas Models:

Are gas valve

coils

inoperative?

Test coils and replace if inoperative. Refer to

Dryer Test Procedures

section.

Yes

No

SWD1694S-a

Yes

No

Is drive

motor switch

inoperative?

Test switch and replace if inoperative.

No

Yes

Continued on

next page.

No

12. Dryer Heating Assembly Does Not Heat or Burner Does Not Ignite

24 803404

Dryer Troubleshooting

SWD1694S-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

Dryer Test Procedures

section.

Gas Models:

Is igniter

inoperative?

Gas Models:

Is sensor

inoperative?

Test sensor and replace if inoperative.

Continued from

previous page.

Yes

No

Yes

No

Gas Models:

Is gas flow

restricted in

gas orifice?

Clean out gas orifice.

Yes

Is cycling

thermostat

inoperative?

Test thermostat and replace if inoperative.

Yes

No

Is wiring

broken, loose

or incorrect?

Refer to wiring diagram.

No

Yes

12. Dryer Heating Assembly Does Not Heat or Burner Does Not Ignite (continued)

803404 25

Dryer Troubleshooting

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

Is there power to

power leads on valve (pink and

blue wires)?

Check thermostats, motor switch and wiring.

No

Has flame

sensor failed

with contacts

open?

Yes

Replace sensor.

Yes

Is igniter broken

or open?

Replace igniter.

No

Yes

SWD1695S

13. Igniter Does Not Glow (Gas Supply Sufficient) – Gas Dryer Models

26 803404

14. Burner Ignites and Goes Out Repeatedly – Gas Dryer Models

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.

Yes

Is weather

hood flapper

restricted?

No

Is burner heat

holding sensor

contacts open?

Replace sensor or correct gas supply problem.

No

SWD1696S

Refer to

Installation Instructions

(supplied with unit) for exhaust requirements.

Yes

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.

No

Yes

No

Yes

Dryer Troubleshooting

803404 27

Dryer Troubleshooting

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

Did sensor

fail in closed

position?

Replace sensor.

Yes

Is secondary

coil or holding

coil open?

No

Is gas supply

insufficient?

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

No

Yes

SWD1697S

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

Dryer Test

Procedures

section.

Yes

Are igniter

and bracket

improperly installed on burner tube

assembly?

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

Is sensor

improperly

installed on

burner

housing?

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

No

Yes

No

15. Igniter Glows But Burner Does Not Ignite – Gas Dryer Models

28 803404

Alliance Laundry Systems BT3LLFSG401UW01, BT3LXFSG401UN01, BT3LLFSP401UN01, BT3LLFSP401UW01, BT3LXFSG401UW01 Troubleshooting Manual

Specifications and Main Features

Frequently Asked Questions

User Manual