ALLIANCE BTEBCFSP171TW01, BTEL75QN4065, BTEBLFSP431AW01, BTEBEFSP171TW01, BTEBEFSP281CW01 Troubleshooting Manual

Commercial

Stacked Washer/

Dryers

Refer to Page 6 for Model Numbers

Troubleshooting

www.comlaundry.com

SWD447C

Part No. 802748R3

June 2011

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 ..............................................................................8

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

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

2. Washer Motor Circuit .................................................................15

3. Troubleshooting Knocking Noise ...............................................15

4. No Spin Due to Out-of-Balance Switch Wiring Problem Starting

Serial Nos. Beginning 0307 ........................................................16

5. Troubleshooting LEDs on Washer Inverter Controls Starting

Machine Serial No. 0911014603 ................................................17

6. No Spin (Washer)........................................................................17

7. Troubleshooting Shock Absorbers..............................................19

Section 4 – Dryer Troubleshooting ......................................................21

4. Dryer Motor Does Not Run ........................................................22

5. Dryer Stops In Cycle; Quits After The First Few Loads; Has A

Burning Smell; Cycles On Motor Thermal Protector.................23

6. Dryer Motor Runs But Cylinder Does Not Turn ........................24

7. Dryer Motor Does Not Stop........................................................25

8. Dryer Runs Only When Door is Open........................................26

9. Dryer Heating Assembly Does Not Heat or

Burner Does Not Ignite...............................................................27

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

Gas Dryer Models .......................................................................29

11. Burner Ignites and Goes Out Repeatedly – Gas Dryer Models ..30

12. Igniter Glows But Burner Does Not Ignite – Gas Dryer Models31

13. Dryer Heater Assembly Or Burner Shuts Off Prematurely ........32

14. Dryer Heater Assembly or Burner Repeatedly Cycles Off On

Limit Thermostat.........................................................................33

15. Dryer Heater Assembly or Burner Does Not Shut Off...............35

16. Clothes Do Not Dry in Dryer......................................................36

17. Clothes Are Too Hot When Removed From Dryer ....................37

18. Excessive Chattering Or Vibrating Noise in Dryer ....................38

19. Excessive Humming Or Whistling Noise in Dryer.....................39

802748 1

Section 5 – NetMaster and MDC Troubleshooting

– Washer Control...................................................................................40

20. Error Code Listing ......................................................................41

21. Microwand Does Not Communicate With Washer Control –

NetMaster Models Only..............................................................42

22. Coins Ignored When Entered in Washer Coin Drop...................43

23. No Visible Display on Washer Control ......................................44

24. Washer Will Not Start – “door” Displayed (Door must be closed

and attempting to lock) ...............................................................46

25. Washer Will Not Start – “E:dL” on Display...............................48

26. Washer Will Not Fill (Machine empty, no “E:SP” on display) ..50

27. Washer Overflows.......................................................................52

28. Washer Pump or Drain Valve Does Not Operate .......................54

29. Serial Communication Error (“E:SP” on washer display)..........56

30. Washer Motor Does Not Run (“E:df” on display)......................58

31. Washer Will Not Heat (“OP” or “SH” displayed) (Models equipped with heater)60

32. Washer Will Not Heat (Models equipped with heater) ..............62

Section 6 – NetMaster Troubleshooting – Dryer Control..................64

33. Error Code Listing ......................................................................64

34. Coins Ignored When Entered in Dryer Coin Drop .....................67

35. No IR Communication with Dryer Control ................................68

36. No Display on Dryer Control......................................................69

37. Dryer Door Open ........................................................................71

38. Dryer Motor Will Not Start.........................................................73

39. No Heat (Electric Dryer Models)................................................75

40. No Heat (Gas Dryer Models)......................................................77

Section 7 – MDC Troubleshooting – Dryer Control...........................79

41. Error Code Listing ......................................................................79

42. Coins Ignored When Entered in Dryer Coin Drop .....................80

43. No Visible Display on Dryer Control .........................................82

44. Dryer Door Open ........................................................................84

45. Dryer Motor Will Not Start.........................................................86

46. No Heat (Electric Dryer Models)................................................88

47. No Heat (Gas Dryer Models)......................................................90

Section 8 – Adjustments ........................................................................92

48. Cabinet Leveling Legs ................................................................92

49. Washer Loading Door.................................................................93

50. Washer Motor Belt Tension........................................................94

51. Washer Door Catch.....................................................................95

52. Shipping Braces ..........................................................................97

53. Burner Flame (Gas Models)........................................................98

54. Cleaning Non-Electronic Coin Drop...........................................99

55. Cleaning Electronic Coin Drop.................................................101

Section 9 – Dryer Test Procedures .....................................................105

56. Drive Motor...............................................................................105

57. Motor Switch.............................................................................108

58. Burner System Operation..........................................................110

59. Electrical Circuit To Ignition System (Gas Models) ................111

60. Gas Valve Coils Check (Gas Models) ......................................111

61. Sensor Check (Gas Models)......................................................112

62. Igniter Check (Gas Models)......................................................112

63. Thermal Fuse (Electric Models) ...............................................113

64. Heater Assembly (Electric Models)..........................................113

65. Cycling or Limit Thermostat.....................................................113

66. Door Switch ..............................................................................114

2 802748

Section 10 – Internal Wiring of Dryer Motor Switch.......................115

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.

802748 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 802748

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.

802748 5

Introduction

Model Identification

Information in this manual is applicable to these washers.

Model Number MDC NetMaster Heat

BTEBCFSP171TW01 X Electric

BTEBEFSP171TW01 X Electric

BTEBEFSP281CW01 X Electric

BTEBLFSP431AW01 X Electric

BTEL75*N4065 X Electric

BTEL77*N4065 X Electric

BTEX75*N4065 X Electric

BTEX77*N1727 X Electric

BTEX77*N4065 X Electric

BTEX77*N4350 X Electric

BTGBCFSP111TW01 X Gas

BTGBEFSP091CW01 X Gas

BTGBEFSP111TW01 X Gas

BTGBLFSP301AW01 X Gas

BTGX79*N1127 X Gas

BTGX79*N3060 X Gas

HTEB77*N2802 X Electric

HTET77*N X Electric

HTET77*N2802 X Electric

HTEX77*N2802 X Electric

HTEX77*N2902 X Electric

HTEY77*N X Electric

HTEY77*N2802 X Electric

HTGB79*N0902 X Gas

HTGT79*N X Gas

HTGT79*N0902 X Gas

HTGX79*N0902 X Gas

HTGY79*N X Gas

HTGY79*N0902 X Gas

NTEL77*N4064 X Electric

NTEX77*N3000 X Electric

NTEX77*N4064 X Electric

NTEX77*N4067 X Electric

NTEX77*N5400 X Electric

NTGL79*N4067 X Gas

NTGX79*N3000 X Gas

NTGX79*N4067 X Gas

STEA77*N X Electric

6 802748

Model Number MDC NetMaster Heat

STEA77*N3069 X Electric

STEB77*N X Electric

STEBXFSP301NW22 X Electric

STEF77*N X Electric

STEF77*N4350 X Electric

STET77*N X Electric

STEX77*N X Electric

STEX77*N2827 X Electric

STEX77*N3000 X Electric

STEX77*N4064 X Electric

STEX77*N4350 X Electric

STEX77*N5400 X Electric

STEX77*N5754 X Electric

STEY77*N X Electric

STEY77*N4064 X Electric

STEY77*N5754 X Electric

STGA73*N X Gas

STGA79*N X Gas

STGB79*N X Gas

STGBXFSP301NW22 X Gas

STGF79*N X Gas

STGT79*N X Gas

STGX73*N X Gas

STGX79*N X Gas

STGX79*N3000 X Gas

STGX79*N3060 X Gas

STGY79*N X Gas

* Add Letter To Designate Color. W – White Q – Bisque

Introduction

802748 7

Introduction

SWD1687S

W

A

SH

E

R

D R

Y

ER

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)

Theory of Operation

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.

8 802748

Introduction

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.

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 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 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

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

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.

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.

Tab le 1

802748 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 802748

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

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

802748 11

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

MIX7B

Coin Drop Cover

Coin Return Button

Tension Spring

MIX6B

Coin Drop Cover

DRY2088N

Cover Catch

Tension Spring

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.

(2) Manually hold down coin drop cover and

insert coin. Refer to Figure 3.

Figure 3

(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.

Figure 2

Figure 4

(2) Open cover for coin drop.

12 802748

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

Small Flathead Screwdriver

Right Side of Tension Spring

Left Tab

MIX3B

Tabs

Center Tab

MIX4B

Clip

MIX8B

Slot

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

until it is free from right tabs. Refer to

Figure 6.

(9) Remove clip from spring. Refer to

Figure 7.

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

Figure 6

(7) Use screwdriver to remove spring from

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

802748 13

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

MIX5B

Small Flat

Screwdriver

Center

Tab

Left Tab

(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.

Reinstall Coin Drop Into Machine

(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.

14 802748

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

2. Washer Motor Circuit

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

General Troubleshooting

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

802748 15

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)

16 802748

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.

802748 17

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:

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

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

6. No Spin (continued)

18 802748

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

7. Troubleshooting Shock Absorbers

A squeaking noise, oil seen on the base of the washer, or an out-of-balance condition may mean one or more shock absorbers need to be replaced.

To determine if there is an inoperative shock:

1. Remove front access panel.

2. Check height of rod or rod spacing above shock. If all four shocks are uniform and have about two inches of rod showing when basket is empty, shocks don’t need replacing. Refer to Figure 12. If one or more shocks is showing less than two inches of rod, then an internal spring has broken and all four shocks should be replaced.

3. Check base of washer below shock absorbers for grease or oil. Shocks are not oil filled. Any oil is from grease used internally to lubricate damper of shock. A small amount of grease/oil on base is normal and doesn’t indicate failure. A large amount of grease/oil indicates a shock that might fail soon. Do not replace shock until the internal spring has broken as described in Step 2.

General Troubleshooting

802748 19

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

Good Shock Shows Approximately 2 inches of Rod

FLW1845B

Figure 12

20 802748

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.

802748 21

Dryer Troubleshooting

4. Dryer Motor Does Not Run

Dryer motor does not run.

Is power cord

plugged in?

Yes

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.

Is loading

door closed?

No

Yes

Plug in cord.

Turn power on or replace fuse. Check

No

both fuses for electric models.

No

Close door.

Yes

Has motor

overload protector

cycled?

No

Is motor

centrifugal

switch sticky

or plugged

with lint?

No

Is there a bind

in motor

bearing?

No

Wait two or three minutes for overload protector to reset. If

Yes

protector cycles repeatedly, refer to next flowchart.

Remove

Yes

dust or lint and spray with a cleaner and lubricant.

Remove belt and determine if

Yes

motor shaft will spin. Replace motor if shaft is locked up.

Test switch and

Is door switch

inoperative?

No

Are motor starting

functions inoperative,

does not start, or motor

just hum?

No

Is motor dead,

won't run?

No

22 802748

Yes

replace if inoperative.

Yes

Refer to

Yes

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

Refer to

Adjustments

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

Adjustments

Is motor wire

harness

connection

block loose?

No

Is wiring

broken, loose

or incorrect?

No

Is power cord

miswired?

Firmly press

Yes

connection block onto motor switch.

Yes

Refer to wiring diagram.

Refer to wiring

Yes

diagram for correct wiring.

SWD1689S

5. Dryer Stops In Cycle; Quits After The First Few Loads; Has A Burning

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

Smell; Cycles On Motor Thermal Protector

Dryer Troubleshooting

802748 23

Dryer Troubleshooting

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

6. Dryer Motor Runs But Cylinder Does Not Turn

24 802748

7. Dryer Motor Does Not Stop

Dryer motor does not stop.

Is wiring to

motor switch

incorrect?

Refer to wiring diagram.

Yes

Is motor

centrifugal

switch sticky

or plugged

with lint?

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

Dryer Troubleshooting

802748 25

Dryer Troubleshooting

Dryer runs only when door is open.

Is door switch

miswired?

Rewire door switch. Refer to wiring diagram.

Yes

SWD1693S

Replace door switch.

No

8. Dryer Runs Only When Door is Open

26 802748

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

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

Is exhaust

system

improper or

inadequate?

Refer to

Installation Instructions

(supplied with unit) for exhaust requirements.

Is exhaust duct made of plastic or thin

foil?

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

Dryer Troubleshooting

802748 27

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

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

28 802748

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

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

Is there power to

power leads on valve (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

Dryer Troubleshooting

802748 29

Dryer Troubleshooting

Gas dryer models: Burner ignites and goes out repeatedly.

Is exhaust

system

improper or

inadequate?

Refer to

Installation Instructions

(supplied with unit) for exhaust requirements.

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

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

30 802748

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

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

Dryer Troubleshooting

802748 31

Dryer Troubleshooting

Dryer heater assembly or burner shuts off prematurely.

Is exhaust

system

improper or

inadequate?

Refer to

Installation Instructions

(supplied with unit) for exhaust requirements.

Yes

Is weather

hood flapper

restricted?

No

Gas Models: Is

gas supply

insufficient?

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

No

Yes

SWD1698S

Refer to

Installation Instructions

(supplied with unit) for exhaust requirements.

Yes

Gas Models: Is

dryer properly

equipped for type

of gas used?

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

Gas Models:

Is burner

flame

improperly

adjusted?

Adjust flame. Refer to

Adjustments

section.

Cycling off on

limit

thermostat?

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

No

Yes

No

Gas Models: Is sensor contact

closing?

Replace sensor or adjust burner flame (refer to

Adjustments

section).

Yes

Is cycling

thermostat

inoperative?

Test thermostat and replace if inoperative.

Is wiring

broken, loose

or incorrect?

Refer to wiring diagram.

Yes

No

Yes

13. Dryer Heater Assembly Or Burner Shuts Off Prematurely

32 802748

14. Dryer Heater Assembly or Burner Repeatedly Cycles Off On Limit

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

Is external exhaust

system longer or

providing greater

restriction than

recommended?

Refer to

Installation Instructions

(supplied with unit) for exhaust system requirements.

Is exhaust duct made of plastic

or thin foil?

No

Replace with rigid or semi-rigid metal exhaust duct.

Yes

Is lint filter

clogged?

Clean lint filter.

Yes

Is there lint in

internal dryer

ductwork?

No

Disassemble dryer ductwork and clean.

Is there lint

or other

obstruction in

external exhaust

system?

Disassemble and clean exhaust system.

Yes

Is hinged

damper on

exhaust system

weather hood

not free to

open?

Free hinged damper or replace weather hood.

Yes

Is limit

thermostat

cycling at too

low a

temperature?

Replace thermostat.

Yes

SWD1699S-a

Yes

No

Continued on

next page.

No

Thermostat

Dryer Troubleshooting

802748 33

Dryer Troubleshooting

SWD1699S-b

Continued from

previous page.

Is there an air

leak at front panel seal?

Check and replace seal if necessary.

Check and replace seal(s) if necessary.

Is there an air

leak at cylinder

seal(s)?

Is there an air leak at blower

seal?

Check and replace seal if necessary.

Test thermistor and replace if inoperative.

Is thermistor

inoperative?

Is there an air leak

around loading door? (Door not sealing due

to damaged seal or

inoperative door

catch)?

Replace seal or catch.

Yes

No

Yes

14. Dryer Heater Assembly or Burner Repeatedly Cycles Off On Limit Thermostat (continued)

34 802748

15. Dryer Heater Assembly or Burner Does Not Shut Off

Dryer heater assembly or burner does not shut off.

Is motor switch

inoperative? (Must be in a heat setting.)

Test switch and replace if inoperative.

Yes

Motor does

not stop?

No

Refer to

Dryer Motor Does Not Stop

paragraph.

Yes

Is wiring

incorrect?

Refer to wiring diagram.

No

Yes

SWD1700S

Has heater

assembly

shorted?

Remove heater assembly and check for short.

No

Yes

Dryer Troubleshooting

802748 35

Dryer Troubleshooting

Clothes do not dry in dryer.

Does heater

assembly not

heat or

burner not

ignite?

Refer to

Dryer Heating Assembly Does Not Heat or Burner Does Not Ignite

paragraph.

Yes

Is there too

much water

in articles

being dried?

No

Is laundry

load too

large?

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

No

Yes

SWD1701S

Remove excess water.

Yes

Is laundry

load too

small?

Add one or two bath towels to load.

Is there

excessive

lint on lint

filter?

Clean lint filter.

Is exhaust

system

improper or

inadequate?

Refer to

Installation Instructions

(supplied with unit) for exhaust requirements.

No

Yes

Does heater

assembly or

burner shut off

prematurely?

Refer to

Dryer Heater Assembly or Burner Shuts Off Prematurely

paragraph.

Yes

Gas Models:

Is gas line

pressure too

high or too

low?

If Natural Gas line pressure to dryer exceeds 8 inch water column pressure, or is lower than 4 inch water column, ask Gas Company to correct.

Is belt installed

improperly (low

RPM - correct

RPM is 52 ± 1)?

Check for proper installation.

No

Yes

No

16. Clothes Do Not Dry in Dryer

36 802748

17. Clothes Are Too Hot When Removed From Dryer

Clothes are too hot when removed from dryer.

Is exhaust

system

improper or

inadequate?

Refer to

Installation Instructions

(supplied with unit) for exhaust requirements.

Yes

Were clothes

removed from

dryer before

cycle has

completed?

No

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

Yes

Is cycling

thermostat

inoperative?

Test cycling thermostat and replace if inoperative.

No

Yes

SWD1702S

Are seals inoperative (air leaks)?

Check and replace any inoperative seals in the following areas:

1. Seal between loading door and front panel.

2. Seal between front panel and front bulkhead.

3. Seal between blower cover and air duct.

4. Seal between cylinder and front or rear bulkhead.

5. Gap between air duct and filter mounting.

No

Yes

Add additional cool-down time.

No

Dryer Troubleshooting

802748 37

Dryer Troubleshooting

Excessive chattering or vibrating noise in dryer.

Is idler spring

inoperative?

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

Yes

SWD1703S

Check blower fan for missing or cracked fan blades.

No

18. Excessive Chattering Or Vibrating Noise in Dryer

38 802748

19. Excessive Humming Or Whistling Noise in Dryer

Excessive humming or whistling noise in dryer.

Is blower

housing

inoperative?

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

Yes

SWD1704S

Check blower fan for missing or cracked fan blades.

No

Dryer Troubleshooting

802748 39

Section 5

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

NetMaster and MDC Troubleshooting

– Washer Control

40 802748

20. Error Code Listing

NetMaster and MDC Troubleshooting – Washer Control

E:df

E:SP

E:FL

door

E:do

E:dL

Drive failure.

Serial communication error.

Fill error.

Door open indicator.

Door open error.

Door lock error.

This error code is generated by the motor control and transmitted to the master control. Several conditions can cause this code: motor unplugged, motor failure, tachometer circuit open, inner basket locked up. This is a fatal error. Machine must be unpowered to reset.

This error code occurs when the master control cannot communicate with the motor control. The master control will try to reset the motor control by powering it down. It will try resetting three times before setting the error code. Common causes: fuse blown on motor control board, wiring to motor control incorrect. This is a fatal error.

This error code occurs if the pressure switch fails to open in 30 minutes in any fill/agitate cycle. This is a fatal error.

This error code occurs when the door is not closed at the start of an active cycle. If the door is closed, check for wiring or door switches.

This error code occurs if the control detects the door open and door locked inputs high at the same time. You can get this error if you jerk on the door when it is locked or as it is about to lock. This is a fatal error.

This error code occurs if the door does not lock in 15 seconds or unlock in 3 minutes at the end of the cycle. This is a non-fatal error. If the door locks or unlocks while E:dL is displayed, it will clear the error condition. If the door is opened after failing to lock, it will clear the display.

E:Ht (Models equipped with heater)

OP (Models equipped with heater)

SH (Models equipped with heater)

Heater error.

Open thermistor error.

Shorted thermistor error.

This error code occurs if it takes more than two hours to heat water to the programmed temperature. The cycle will continue. The code will clear when control exits End of Cycle mode.

This error code occurs if the thermistor circuit opens while heating.

This error code occurs if the thermistor circuit is shorted while heating.

802748 41

NetMaster and MDC Troubleshooting – Washer Control

Microwand Does Not Communicate With Control.

Attempt to communicate with the

electronic control from the Microwand.

Is there

acknowledgement of

any kind from the

control?

Aim the

Microwand closer

and try again.

No

Yes

Does the Microwand

prompt: Control

Mismatch error ?

Is there any control

response?

Yes

Check the following:

- Microwand battery voltage

- Blockage of IR window on control

- Attachment of IR cup to Microwand.

No

Make sure

Microwand

selection was for

the proper

machine type and

control generation

type.

Yes

No

Does the electronic

control display "E:OF"

or "-C-"?

-C-

Communication

sequence checks

out properly.

Change electronic control and repeat

procedure.

Has IR communication

been turned off?

E:OF

No

Yes

Turn IR

communication on

(refer to

programming

manual).

FLW296S

21. Microwand Does Not Communicate With Washer Control – NetMaster Models Only

42 802748

NetMaster and MDC Troubleshooting – Washer Control

Coins Ignored When Entered.

NetMaster Models: Start Coin Drop

Diagnostic Test. Refer

to programming manual.

MDC Models: Start Production Test

Cycle and advance to Coin Drop Test.

Reset control to

ready mode.

Yes

No

Is "H7" connector

properly seated on the

control board?

No

Properly reseat connection and

conduct diagnostic

test again.

Yes

From the coin drop, is

the 3-pin connector

properly plugged in?

Yes

No

Properly reseat

connection and

conduct diagnostic

test again.

Are the wires exiting the coin drop optical sensor

cracked or broken?

Replace electronic

control.

Replace the

coin drop.

Yes

No

Does the count on

the display increment

properly after entering

coins?

FLW1715S

22. Coins Ignored When Entered in Washer Coin Drop

802748 43

NetMaster and MDC Troubleshooting – Washer Control

Control Has No Visible Display

The electronic control has no

LED or VFD functioning on

the control board.

Is the power cord

plugged in?

Plug unit into an outlet and check for proper supply

voltage.

No

Yes

(1)

No

Is there 24 Volt

AC at the output side of

the transformer?

*Refer to machine serial plate for correct voltage.

Is there

220-240 VAC

(or 120 VAC)* to the

primary of the

transformer?

No No

(2) (3)

Check wiring to

the primary of the

transformer.

Yes Yes

Correct wiring

between

transformer and

control board.

Replace

transformer.

Make sure "H1"

connector is

seated properly.

Replace control.

Yes

Is there 24 Volt AC

across terminals "H1-1"

and "H1-3" control

board?

FLW1695S

1 2 3

23. No Visible Display on Washer Control

44 802748

No Visible Display on Washer Control

(Models with 220 240 VAC)

220-240 VAC (or 120 VAC) 50/60 Hz (SEE MACHINE SERIAL PLATE)

1

2

3

NetMaster and MDC Troubleshooting – Washer Control

802748 45

NetMaster and MDC Troubleshooting – Washer Control

Washer Will Not Start. No Door Lock.

Washer will not

start. Vend

satisfied.

Is there

220-240 VAC

(or 120 VAC)*

across "H4-5" and "H6-5"

on the control

board?

(1)

(2)

Yes

Replace the

electronic

Control Board.

No

Is there

220-240 VAC (or

120 VAC)* to the blk

input wire to the door

switch on the lock

assembly?

Replace the Door

Lock Assembly.

Yes

No

Correct wiring

to the

door switch.

FLW1767S

*Refer to machine serial plate for correct voltage.

1

2

24. Washer Will Not Start – “door” Displayed (Door must be closed and attempting to lock)

46 802748

NetMaster and MDC Troubleshooting – Washer Control

(Models with 220 240 VAC)

220-240 VAC (or 120 VAC) 50/60 Hz (SEE MACHINE SERIAL PLATE)

2

1

Washer Will Not Start – “door” Displayed

802748 47

NetMaster and MDC Troubleshooting – Washer Control

25. Washer Will Not Start – “E:dL” on Display

Washer will

not start.

Vend satisfied.

1

(1)

Is there

220-240 VAC (or

120 VAC)* across terminals

"H4-4" and "H6-5" on the

electronic control?

No

Replace the electronic

control board.

Yes

Is door catch

properly adjusted?

Refer to Adjustments

section.

Yes

Replace the

door lock assembly.

*Refer to machine serial plate for correct voltage.

No

Adjust catch and retest.

FLW1773S

48 802748

Washer Will Not Start – “E:dL” on Display

(Models with 220 240 VAC)

220-240 VAC (or 120 VAC) 50/60 Hz (SEE MACHINE SERIAL PLATE)

1

NetMaster and MDC Troubleshooting – Washer Control

802748 49

NetMaster and MDC Troubleshooting – Washer Control

26. Washer Will Not Fill (Machine empty, no “E:SP” on display)

Washer Will Not Fill

(Machine empty, No E:SP on display)

Is the door

locked?

Yes

1

(1)

Is there

220-240 VAC (or

120 VAC)* across terminals

"H1-1" and "H9-4" on

the motor

control?

Yes

2

(2)

Is there

220-240 VAC

(or 120 VAC)* across

terminals "H9-6" to "H1-1"

(hot) and "H9-3"

to "H1-1"

(cold)?

Yes

3

(3)

Is there

220-240 VAC

(or 120 VAC)* across

mixing valve solenoid(s)?

No

Refer to

Washer Will Not Start -

E:dL on display

section

Correct wiring from pressure switch or replace pressure switch.

Replace motor control board.

Replace motor control.

*Refer to machine serial plate for correct voltage.

50 802748

Yes

Replace mixing valve.

FLW1698S

Washer Will Not Fill (Machine empty, no “E:SP” on display)

(Models with 220 240 VAC)

220-240 VAC (or 120 VAC) 50/60 Hz (SEE MACHINE SERIAL PLATE)

3

1

2

NetMaster and MDC Troubleshooting – Washer Control

802748 51

NetMaster and MDC Troubleshooting – Washer Control

Washer Overflows

Is there

220-240 VAC

(or 120 VAC)*

to the over level terminal

on pressure switch

to neutral?

Yes

No

Replace

inoperative

pressure switch.

Is there

220-240 VAC

(or 120 VAC)*

across the coil of either

the hot or cold water

solenoid?

Yes

No

Check for

improper wiring

and replace inoperative

pressure switch

if necessary.

Replace

inoperative water

valve.

(1)

(2)

FLW1699S

*Refer to machine serial plate for correct voltage.

1

2

27. Washer Overflows

52 802748

(Models with 220 240 VAC)

220-240 VAC (or 120 VAC) 50/60 Hz (SEE MACHINE SERIAL PLATE)

2

1

NetMaster and MDC Troubleshooting – Washer Control

Washer Overflows

802748 53

NetMaster and MDC Troubleshooting – Washer Control

Pump Does Not Operate

Is there

220-240 VAC

(or 120 VAC)*

across the

wht/blk and the white wire

going to the pump or

drain valve?

Is there

220-240 VAC

(or 120 VAC)*

across terminals

"H6-2" and

"H6-5?"

If the pump or

drain valve does not

operate check for

blockage. Replace

if necessary.

Correct wiring

between control

and pump or

drain valve.

Replace control

assembly.

(1)

(2)

No

Yes

No

Yes

FLW1700S

*Refer to machine serial plate for correct voltage.

NOTE: Check at beginning of spin/drain portion of cycle.

28. Washer Pump or Drain Valve Does Not Operate

54 802748

Washer Pump or Drain Valve Does Not Operate

(Models with 220 240 VAC)

220-240 VAC (or 120 VAC) 50/60 Hz (SEE MACHINE SERIAL PLATE)

2

1

NetMaster and MDC Troubleshooting – Washer Control

802748 55

NetMaster and MDC Troubleshooting – Washer Control

29. Serial Communication Error (“E:SP” on washer display)

SERIAL COMMUNICATION ERROR (E:SP on display

1

(1)

Is the fuse loose or

blown on the motor

control board?

No

2

(2)

Restart

machine and

check voltage: Is

there 220-240 VAC (or

120 VAC)* across terminals

"H1-1" and "H1-3"

on motor control?**

Yes

(4)

4

Is there

continuity through

each wire of the harness

from H2 on the electronic

control to H7 on the

motor control?

No

Yes

No No

Yes

Tighten fuse holder and/or replace fuse.

3

Restart

machine and

check voltage: Is

there 220-240 VAC (or

120 VAC)* across terminals

"H6-5" and "H6-6"

on the electronic

control?**

Correct wiring from electronic control to motor control.

Change the motor control.

(3)

Yes

Replace electronic control.

Change the harness.

*Refer to machine serial plate for correct voltage.

**NOTE: Machine must be restarted to check voltage. Vol ta ge will be intermittently present during first 15 seconds until E:SP is displayed.

56 802748

FLW1701S

Serial Communication Error (“E:SP” on washer display)

(Models with 220 240 VAC)

220-240 VAC (or 120 VAC) 50/60 Hz (SEE MACHINE SERIAL PLATE)

3

2

1

4

NetMaster and MDC Troubleshooting – Washer Control

802748 57

NetMaster and MDC Troubleshooting – Washer Control

Motor does not run (E:df on display)

(1)

No

Is there

continuity between

motor terminals?

Refer to values

at right.

Yes

Check motor plug or replace motor control.

Replace motor .

FLW1702S

Motor Resistance Values: Tach. Circuit: Approx. 115 ohms (Terminals 4-5) Windings: Approx. 4 - 5 ohms (Terminals 1-2, 1-3, 2-3)

1

30. Washer Motor Does Not Run (“E:df” on display)

58 802748

Washer Motor Does Not Run (“E:df” on display)

(Models with 220 240 VAC)

220-240 VAC (or 120 VAC) 50/60 Hz (SEE MACHINE SERIAL PLATE)

1

NetMaster and MDC Troubleshooting – Washer Control

802748 59

NetMaster and MDC Troubleshooting – Washer Control

No

Yes

(2)

(1)

Check wiring to thermistor.

Measure

resistance at

connector "H3" on

electronic control. Is resistance

value between

500 and 35,000

ohms?

Measure

resistance at

thermistor. Is resistance

value between

500 and 35,000

ohms?

Replace electronic

control.

Replace thermistor/

heater assembly.

Yes

No

FLW1705S

1

2

31. Washer Will Not Heat (“OP” or “SH” displayed) (Models equipped with heater)

60 802748

NetMaster and MDC Troubleshooting – Washer Control

2

1

Washer Will Not Heat (“OP” or “SH” displayed)

802748 61

NetMaster and MDC Troubleshooting – Washer Control

No

Is there

230 Volts across

the heaters?

Yes

(1)

(2)

Yes

Replace

heater(s).

Verify water temperature

is less than selected

cycle temperature

set point.

Is there

230 volts across

terminals A1 - A2 on

the heat relay?

No

Yes

No

Correct wiring between

the heat relay coil and

the electronic control

or replace board.

Is the

pressure switch

satisfied?

The heater will not

come on until the

pressure switch

is satisfied.

No

Yes

Are there

4 "dashes" on

display indicating

the machine

is heating?

Check wiring or

replace heat relay.

FLW1703S

1

2

32. Washer Will Not Heat (Models equipped with heater)

62 802748

NetMaster and MDC Troubleshooting – Washer Control

2

1

Washer Will Not Heat (Models equipped with heater)

802748 63

Section 6

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

NetMaster Troubleshooting – Dryer Control

33. Error Code Listing

Display Description Cause/ Corrective Action

EI:00 General Communications Error Communication problem. Re-aim Micro-wand and try again.

EI:01 Bad Transmission Communication problem. Re-aim Micro-wand and try again.

EI:02 Device Timeout Communication problem. Re-aim Micro-wand and try again.

EI:03 Invalid Command Code Wrong machine type. Before downloading, ensure data is for

current machine type.

EI:04 Expecting Upload Request Communication problem. Re-aim Micro-wand and try again.

EI:05 Invalid or Out-of-Range Data Wrong machine type. Before downloading, ensure data is for

current machine type.

EI:06 Invalid Data Code Wrong machine type. Before downloading, ensure data is for

current machine type.

EI:07 Error Writing to RTC Control failure. Control may need to be replaced.

EI:08 Error Writing to EEPROM Control failure. Control may need to be replaced.

EI:09 CRC-16 Error Communication problem. Re-aim Micro-wand and try again.

EI:0A Invalid Machine Type Wrong machine type. Before downloading, ensure data is for

current machine type.

EI:0F Invalid Wakeup or IR Disabled Communication problem or IR is disabled. Manually enable IR

on control/Re-aim Micro-wand and try again.

EC:00 General Communication Error Communication problem. Try card again.

EC:02 Timeout Error Communication problem. Try card again.

EC:03 Invalid Command Code Wrong machine type. Before downloading, ensure data is for

current machine type.

EC:05 Invalid or Out-of-Range Data Wrong machine type. Before downloading, ensure data is for

current machine type.

EC:06 Invalid Data Code Wrong machine type. Before downloading, ensure data is for

current machine type.

EC:09 Corrupted Data Error Communication error. Try card again.

EC:0A Invalid Machine Type Wrong machine type. Before downloading, ensure data is for

current machine type.

64 802748

NetMaster Troubleshooting – Dryer Control

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

Display Description Cause/ Corrective Action

EC:19 No Card Reader Communication Communication problem. Power down, power up and try

again. If error persists, control or reader is bad.

EC:20 Unreadable Card Bad card/ dirty contact. Clean chip on card or card reader

contacts. Try card again. If error persists, card may be bad.

EC:21 Security ID Mismatch Wrong card. Use card with correct security code.

EC:22 Site Code Mismatch Wrong card. Use card with correct site code.

EC:23 Card Maximum Value Exceeded Value on card over max. Use a card which does not exceed

maximum value.

EC:24 Insufficient Memory on Card Card memory is full. Download card contents to PC and clear

card for re-use.

EC:25 Card Reader Malfunction Bad Card Reader. Card Reader may need to be replaced.

EC:26 Card Write Error Try card again. If error persists, card may be bad.

EC:27 Diagnostic Test Card Write Failure Bad Card Reader. Card Reader may need to be replaced.

EC:28 Diagnostic Test Card Read Failure Bad Card Reader. Card Reader may need to be replaced.

EC:29 Diagnostic Test Memory Test

Bad Card Reader. Card Reader may need to be replaced.

Failure

EC:2A Diagnostic Test Card Interface

Bad Card Reader. Card Reader may need to be replaced.

Failure

EC:2b Diagnostic Test Flash Checksum

Bad Card Reader. Card Reader may need to be replaced.

Failure

EC:2C Bad Biberon or Non-biberon

Bad Card Reader. Card Reader may need to be replaced.

Device

EC:2d Firmware Update Failed,

Firmware load failed. Card Reader may need to be replaced.

S/W (Software) Intact

EC:2E Firmware Update Failed, S/W Not

Bad firmware in reader. Card Reader may need to be replaced.

Intact

EC:2F Firmware Updated, S/W Not Intact Bad firmware in reader. Card Reader may need to be replaced.

EC:30 Timeout Error Card Reader may need to be replaced.

EC:31 Hotlisted Card Inserted Into Reader Card hotlisted. Control will destroy card.

EC:50 Loyalty Purse Read Error Try card again. If error persists, card may be bad.

EC:56 Loyalty Purse Write Error Try card again. If error persists, card may be bad.

802748 65

NetMaster Troubleshooting – Dryer Control

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

Display Description Cause/ Corrective Action

Right most DP (decimal point) Lit

Network Communication Error Communication problem. Wait for 1.5 minutes for error to

clear. If it doesn’t, power-down and power-up the machine. If error persists, control or Network Board may need to be replaced.

Err Coin Error Invalid coin pulse.

Alrm Breakin Alarm Error Service door or coin vault switches.

OFF Breakin Alarm Shutdown Error Service door or coin vault switches.

E:OP Open Thermistor Error Physical “open” in thermistor circuit. Possible causes are

thermistor, wiring between control and thermistor, or control.

E:SH Shorted Thermistor Error “Short” in thermistor circuit. Possible causes are shorted

thermistor, short in wiring between control and thermistor, or control.

E:00 General Error Re-aim Micro-wand and try again.

E:01 Proximity Error Micro-wand is improperly aimed at infrared communicator

(angle or distance). Re-aim Micro-wand and try again.

E:02 IR Communication Disconnection Micro-wand removed before communication complete. Re-aim

micro-wand and try again.

E:05 Invalid Value Communication Invalid code downloaded from Micro-wand to Electronic

Control. Before downloading, ensure data is for current machine type.

E:07 Inoperative Control Replace control.

E:08 Inoperative Control Replace control.

E:09 Proximity Error Micro-wand is improperly aimed at infrared communicator

(angle or distance). Re-aim Micro-wand and try again.

EI:0A Proximity Error Micro-wand is improperly aimed at infrared communicator

(angle or distance). Re-aim Micro-wand and try again.

E:0B IR Communication Disconnection Micro-wand removed before communication complete. Re-aim

Micro-wand and try again.

E:0C IR Communication Disconnection Micro-wand removed before communication complete. Re-aim

Micro-wand and try again.

E:0F IR Communicator Programmed Off Reprogram infrared communicator on. Manually enable IR on

Err Coin Error Inoperative coin sensor. Check coin drop area and remove

control/Re-aim micro-wand and try again.

obstructions. Possible tampering. Evaluate security procedures.

66 802748

34. Coins Ignored When Entered in Dryer Coin Drop

Does the

display on the

electronic control

increment properly?

Is connector H5 on the control firmly seated in

its receptacle?

Is the

3 pin connector

between the coin drop

and the control

connected

correctly?

Are wires exiting coin drop optical sensor cracked or broken?

Start coin drop diagnostic test.

Replace coin drop.

If problem still exists

replace the control.

Exit diagnostic

testing and reset

control.

Reconnect

and run

diagnostic test

again.

Replace electronic control.

Coins Ignored When Entered

Dwg. 2

DRY353S

YES

NO

YES

NetMaster Troubleshooting – Dryer Control

802748 67

NetMaster Troubleshooting – Dryer Control

Attempt communication with microwand

to the control.

Bring microwand

closer to the IR

window, aim

properly and try

communication

again.

Check the following:

- Low battery on microwand

- Is the IR window

covered or blocked

on the control?

-If needed replace the electronic control.

- Is the IR cup properly attached to the

microwand?

Communication

sequence checks

out.

Check the following:

-Was IR communication disabled by

manual programming.

Is there a response

of any kind from the

electronic control?

Does the control

respond?

Does the electronic

control display “E:OF”

or “-C-”?

No

Yes

No

Yes

“-C-”

“E:OF”

No IR Communication

Dwg. 3

DRY354S

35. No IR Communication with Dryer Control

68 802748

36. No Display on Dryer Control

Replace the control.

Correct wiring

between the

transformer and

the control.

Replace the transformer.

Are there 24 volts AC

across terminals H1-3

and H1-1 on the

control?

Correct wiring to the

primary of the

transformer. Make

sure the machine is

plugged in and

power is on.

Are there 24 Volts AC

across the secondary

of the transformer?

Are there 120 or 240

volts AC to the primary

of the transformer?

(1)

(2)

(3)

NO

YES

NO

NOTE: Refer to wiring diagram for primary voltage.

No Display

Dwg. 1

DRY351S

1

2

3

NetMaster Troubleshooting – Dryer Control

802748 69

NetMaster Troubleshooting – Dryer Control

3

2

1

DRY352S_

No Display on Dryer Control

70 802748

37. Dryer Door Open

Replace

electronic

control.

Correct wiring

between door

switch and control. Also check neutral

supply to control.

Correct wiring to

door switch.

Check operation

of the door

switch.

Replace if

necessary.

Is

there voltage across

terminals H2-1 and

H2-6?

Is

there voltage on

the N.O. terminal of

the door switch to a

neutral wire?

Is

there voltage on

the COM teminal of

the door switch to a

neutral wire?

(1)

(2)

(3)

YES

NO

NOTE: Conduct all tests with the door closed.

YES

NO

YES

NO

Door Open

Dwg. 4

DRY355S

1

2

3

NetMaster Troubleshooting – Dryer Control

802748 71

NetMaster Troubleshooting – Dryer Control

3

1

2

DRY356S_

Dryer Door Open

72 802748

38. Dryer Motor Will Not Start

Is there voltage across

terminals 5 and 4 of

the motor?

Is there voltage across

H2-4 and H2-6 on the

control?

Is there voltage across

H2-1 and H2-6 on the

control?

Replace the motor.

Correct the

wiring to

the motor.

Replace the

electronic

control.

Refer to

door open

troubleshooting.

NOTE: Checks to be made only if

motor does not start and door open indicator is not on. If door open indicator light is on please

refer to door open trouble

shooting.

YES

(1)

(2)

(3)

NO

YES

NO

YES

NO

Motor Will Not Start

Dwg. 5

DRY357S

1

2

3

NetMaster Troubleshooting – Dryer Control

802748 73

NetMaster Troubleshooting – Dryer Control

3

1

2

DRY358S_

Dryer Motor Will Not Start

74 802748

39. No Heat (Electric Dryer Models)

Is there voltage across

the leads to the heating

element?

Is there

voltage from the

output side of the

limit thermostat

to L2?

Is there

voltage to the

input side of the limit

thermostat to L2?

Is there

voltage to the

output side of the

thermo fuse on the

element?

Is there voltage to the

input side of the

thermal fuse?

Is there voltage on

FS-1 on the control to

L2?

Is there voltage on

FS-2 on the control

board to L2?

Check for

proper operation

of centrifugal switch on

motor. Does it operate

properly?

Replace heating

element.

Check and

replace wiring

between

components.

Replace element.

Check for proper

air flow and

operation of

limit thermostat.

Replace thermo

fuse.

Correct wiring

between control

and thermo fuse

on the

element.

Replace motor.

Correct wiring

between motor

and element &

motor and L2.

Make sure unit is

calling for heat.

Check operation

of thermistor.

Replace the

control.

(1)

(2)

(3)

(4)

(5)

(6)

(7)

(8)

YES

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

NO

Dwg. 6

DRY359S

1

7

8

2

3

4

5

6

NetMaster Troubleshooting – Dryer Control

802748 75

NetMaster Troubleshooting – Dryer Control

6

7

5

4

3 2 1

8

DRY360S_

No Heat (Electric Dryer Models)

76 802748

40. No Heat (Gas Dryer Models)

Refer to NOTE.

(1)

(2)

(3)

(4)

(5)

(6)

YES

NO

YES

Refer to Door Open troubleshooting.

Replace either the gas valve, coils of gas valve or the sensor.

No Heat Gas

Dwg. 7

DRY361S

Is there

voltage across

the pink wire of the gas

valve to terminal 2 on

the motor?

Is there

voltage at the

output of the limit

thermostat referenced

to neutral?

Correct wiring

between

limit thermostat

and gas valve.

Is there

voltage to the

input of the limit

thermostat referenced

to neutral?

Check for proper

air flow making

sure venting is

not blocked and

lint screen is clean.

Replace limit

thermostat.

Is there

voltage across

FS-1 and H2-3

(neutral) on the

control?

Correct wiring

between FS-1 and

limit thermostat.

Is there

volta

ge across

FS-2 and H2-3

(neutral) on the

control?

Make sure unit

is calling for heat.

Check operation

of thermistor.

Replace control.

Is there voltage across terminal 1 of the motor

and L1?

Check for proper

operation of

centrifugal on the

motor. Replace

motor if necessary.

Correct wiring

to the motor.

NOTE: When calling for heat the holding coil, the booster coil and the igniter will be energized. Once the sensor senses that the igniter is hot enough for ignition, it will open. At this time the holding coil and the secondary coil will be energized allowing gas to flow. If the flame cycles on and off check for proper operation of sensor. If gas never ignites, check for problems with the coil and check to see if the sensor opens. If coils are good and the sensor opens with the glow bar operational and there is no ignition/gas flow, replace the gas valve.

1

2

3

4

5

6

NetMaster Troubleshooting – Dryer Control

802748 77

NetMaster Troubleshooting – Dryer Control

6

1

2

3

4

5

DRY362S_

No Heat (Gas Dryer Models)

78 802748

Section 7

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

MDC Troubleshooting – Dryer Control

41. Error Code Listing

OP Open Thermistor Error. This error code indicates a physical “open” in the thermistor

circuit. Possible causes are: 1) thermistor, 2) wiring between control and thermistor, or 3) control.

SH Shorted Thermistor Error This error code indicates a “short” in the thermistor circuit.

Possible causes are: 1) shorted thermistor, 2) a short in the wiring between control and thermistor, or 3) control.

EC:19 (Card Reader Machines)

No Card Reader Communication

This error code indicates there is no card reader communication. The control and the reader cannot communicate. Check reader, control and harness.

NOTE: For all other Card Reader errors, consult the Card Reader manufacturer.

802748 79

MDC Troubleshooting – Dryer Control

Does the

display on the

electronic control

increment

properly?

Is

connector H5 on the

control firmly seated in

its receptacle?

Is the

3 pin connector

between the coin drop

and the control

connected

correctly?

Are

wires exiting

coin drop optical

sensor cracked

or broken?

Start coin drop diagnostic test.

Refer to Production

Test Cycle section of

Programming manual.

Replace coin drop. If problem still exists replace the control.

Exit diagnostic

testing and reset

control (prompting

for vend price).

Reconnect and

run diagnostic

test again.

Replace electronic control.

Coins Ignored When Entered

Dwg. 2

DRY353_S

YES

NO

YES

42. Coins Ignored When Entered in Dryer Coin Drop

80 802748

Notes

MDC Troubleshooting – Dryer Control

802748 81

MDC Troubleshooting – Dryer Control

43. No Visible Display on Dryer Control

No Display

Dwg. 1

1

Is

there 24 volts AC

across terminals H1-3

and H1-1 on the

control?

NO

YES

Replace the

control.

(2)

2

Is

there 24 Volts AC

across the secondary

of the transformer?

NO

3

(3)

Is

there 120 (U.S.)

or 240 (overseas) volts

AC to the primary of

the transformer?

YES

Replace the transformer.

YES

NOTE: Refer to wiring diagram for primary voltage.

NO

Correct wiring

between the

transformer and

the control.

Correct wiring to the

primary of the

transformer. Make

sure the machine is

plugged in and

power is on.

DRY351_S

82 802748

MDC Troubleshooting – Dryer Control

1

2

3

No Visible Display on Dryer Control

802748 83

MDC Troubleshooting – Dryer Control

Replace

electronic

control.

Correct wiring

between door

switch and control. Also check neutral

supply to control.

Correct wiring to

door switch.

Check operation

of the door

switch.

Replace if

necessary.

Is

there voltage across

terminals H2-1 and

H2-6?

Is

there voltage on

the N.O. terminal of

the door switch to a

neutral wire?

Is

there voltage on

the COM teminal of

the door switch to a

neutral wire?

(1)

(2)

(3)

YES

NO

NOTE: Conduct all tests with the door closed.

YES

NO

YES

NO

Door Open

Dwg. 4

DRY355S

1

2

3

44. Dryer Door Open

84 802748

Dryer Door Open

1

2

3

MDC Troubleshooting – Dryer Control

802748 85

MDC Troubleshooting – Dryer Control

Is there voltage across

terminals 5 and 4 of

the motor?

Is there voltage across

H2-4 and H2-6 on the

control?

Is there voltage across

H2-1 and H2-6 on the

control?

Replace the motor.

Correct the

wiring to

the motor.

Replace the

electronic

control.

Refer to

door open

troubleshooting.

NOTE: Checks to be made only if

motor does not start and door open indicator is not on. If door open indicator light is on please

refer to door open trouble

shooting.

YES

(1)

(2)

(3)

NO

YES

NO

YES

NO

Motor Will Not Start

Dwg. 5

DRY357S

1

2

3

45. Dryer Motor Will Not Start

86 802748

Dryer Motor Will Not Start

1

2

3

MDC Troubleshooting – Dryer Control

802748 87

MDC Troubleshooting – Dryer Control

Is there voltage across

the leads to the heating

element?

Is there

voltage from the

output side of the

limit thermostat

to L2?

Is there

voltage to the

input side of the limit

thermostat to L2?

Is there

voltage to the

output side of the

thermo fuse on the

element?

Is there voltage to the

input side of the

thermal fuse?

Is there voltage on

FS-1 on the control to

L2?

Is there voltage on

FS-2 on the control

board to L2?

Check for

proper operation

of centrifugal switch on

motor. Does it operate

properly?

Replace heating

element.

Check and

replace wiring

between

components.

Replace element.

Check for proper

air flow and

operation of

limit thermostat.

Replace thermo

fuse.

Correct wiring

between control

and thermo fuse

on the

element.

Replace motor.

Correct wiring

between motor

and element &

motor and L2.

Make sure unit is

calling for heat.

Check operation

of thermistor.

Replace the

control.

(1)

(2)

(3)

(4)

(5)

(6)

(7)

(8)

YES

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

NO

Dwg. 6

DRY359S

1

7

8

2

3

4

5

6

46. No Heat (Electric Dryer Models)

88 802748

MDC Troubleshooting – Dryer Control

1

2

8

3

4

5

6

7

No Heat (Electric Dryer Models)

802748 89

MDC Troubleshooting – Dryer Control

Is there

voltage across

the pink wire of the gas

valve to terminal 2 on

the motor?

Is there

voltage at the

output of the limit

thermostat referenced

to neutral?

Is there

voltage to the

input of the limit

thermostat referenced

to neutral?

Is there

voltage across

FS-1 and H2-3

(neutral) on the

control?

Is there

voltage across

FS-2 and H2-3

(neutral) on the

control?

Is there voltage across terminal 1 of the motor

and L1?

Check for proper

operation of

centrifugal on the

motor. Replace

motor if necessary.

Correct wiring

to the motor.

Make sure unit

is calling for heat.

Check operation

of thermistor.

Replace control.

Correct wiring

between FS-1 and

limit thermostat.

Check for proper

air flow making sure venting is

not blocked and

lint screen is clean.

Replace limit

thermostat.

Correct wiring

between

limit thermostat

and gas valve.

Refer to NOTE.

(1)

(2)

(3)

(4)

(5)

(6)

YES

NO

YES

Refer to Door Open troubleshooting.

Replace either the

gas valve, coils of

gas valve or the

sensor.

NOTE:

When calling for heat the holding coil, the booster coil and the igniter will be energized. Once the sensor senses that the igniter is hot enough for ignition, it will open. At this time the holding coil and the secondary coil will be energized allowing gas to flow. If the flame cycles on and off check for proper operation of sensor. If gas never ignites, check for problems with the coil and check to see if the sensor opens. If coils are good and the sensor opens with the glow bar operational and there is no ignition/gas flow, replace the gas valve.

DRY361_S

1

2

3

4

5

6

47. No Heat (Gas Dryer Models)

90 802748

No Heat (Gas Dryer Models)

6

1

2

3

4

5

(208 VAC or 240 VAC/50 Hertz – Refer to machine nameplate)

MDC Troubleshooting – Dryer Control

802748 91

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

Section 8

DO NOT slide washer across floor if the leveling legs have been extended, as legs and base could become damaged.

W248

CAUTION

Use of the dispenser drawer or washer door as a handle in the transportation of the washer may cause damage to the dispenser or door.

W185

CAUTION

SW

Leveling

Leg

Level

Washer

Base

Locknut

Rubber

Foot

SWD796N

Adjustments

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

48. Cabinet Leveling Legs

a. Place unit in position on a solid, sturdy and

level floor. Installing the unit on any type of carpeting, soft tile, a platform or other weakly supported structures is not recommended.

b. Place a level on the cabinet top and check if

unit is level from side to side and front to back.

f. Place rubber feet on all four leveling legs.

Refer to Figure 13.

g. Verify unit doesn’t rock.

NOTE: Level must be on a raised portion of top panel. Refer to Figure 13.

c. If unit is not level, tilt unit to access front and

rear leveling legs. For easier access to leveling legs, prop up unit with wooden block.

d. Loosen locknuts and adjust the leveling legs

until the unit is level from side to side and front to back (using a level). Make sure unit does not rock. Refer to Figure 13.

e. Tighten the locknuts securely against the

washer base. If the locknuts are not tight, washer will move out of position during operation.

Figure 13

92 802748

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

49. Washer Loading Door

FLW1771S

Hinge

Loading

Door

Screw

a. Open loading door.

b. The loading door can be adjusted up or down

somewhat by loosening screws holding door hinge to front panel, then raising or lowering door before retightening screws. Refer to Figure 14.

Adjustments

Figure 14

802748 93

Adjustments

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

SWD1688S

Inner

Basket

Pulley

Pivot

Bolt

Adjusting

Bolt

1/4 Inch

Motor Pulley

Belt

Metal

Rod

Adjusting

Bolt

Wire

Harness

Pivot

Bolt

Motor

Mounting

Bracket

50. Washer Motor Belt Tension

NOTE: Belt adjustment procedures are done through front of washer, however, as an option, washer can be moved from its location and belt adjustment can be done through lower access panel opening on rear panel.

a. While supporting lower front access panel,

remove two screws from bottom edge of access panel and remove panel.

b. Working through the access door opening,

place a locking pliers on the metal rod and loosen the two adjusting bolts. Refer to Figure 15. Repeat procedure to loosen the two pivot bolts. Refer to Figure 15.

c. Pull down on motor to increase belt tension.

Use a Burroughs belt gauge to obtain proper tension. Proper belt tension is obtained when belt can be deflected approximately 1/4 inch (6.35 mm) from normal position when moderate pressure 50 to 60 pounds (22.68 to

27.22 Kg) is applied to a point midway between pulleys. Refer to Figure 15.

d. After proper belt tension has been obtained,

tighten belt adjusting bolts firmly, then tighten pivot bolts. Refer to Figure 15.

94 802748

Figure 15

Adjustments

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

Outer Bezel

Tab

Inner Bezel

Cut Away

51. Washer Door Catch

NOTE: When repairing a broken or inoperative No. 802803 Door Catch, proceed as follows:

a. Open loading door. b. Remove 11 T-20 Torx head screws holding

outer door bezel to inner door bezel. Refer to Figure 16.

c. Pull hinge side of outer bezel away from door

and slide forward. Refer to Figure 16.

d. Remove two screws and nuts holding door

catch to door and remove door catch.

e. Install new door catch and tighten screws and

nuts to the point of being snug.

f. Adjust door catch so the outside edge is

aligned with the edge of the lock. Refer to Figure 17.

g. Visually check that the door catch properly

engages the funnel of the door latch/switch assembly. Refer to Figure 17.

h. Recheck the alignment in Step “f”. Adjust if

needed.

i. Torque the two nuts to approximately 20 inch

pounds (2.25 Nm).

j. Reinstall outer door bezel by aligning outer

bezel tabs with cut aways on inner bezel and sliding outer bezel into position. Refer to Figure 16.

k. Replace 11 screws holding outer door bezel to

inner door bezel.

IMPORTANT: Do not overtighten screws or bezel holes will strip.

FLW1777S

802748 95

Figure 16

Adjustments

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

H250SE3B

Door

Lock

Funnel

Door

Catch

802803

Catch

SHOWN CLOSED

Alignment of

These Two Edges

Figure 17

96 802748

Adjustments

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

FLW821S

Shock Absorber Shipping

Support

Shock

Absorber

Shipping

Support

Shipping

Bracket

52. Shipping Braces

All stacked washer/dryers, when shipped from the factory are equipped with two factoryinstalled shipping supports. DO NOT remove this shipping material until after machine is placed in its final installed position. Refer to Figure 18.

IMPORTANT: DO NOT tip or move washer once these supports have been removed. Removal of supports prior to final installation may cause

damage to the shock absorbers and will VOID the product warranty.

NOTE: Shipping supports MUST be kept for future re-positioning or moving of the machine.

Figure 18

802748 97

Adjustments

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

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

W262

WARNING

53. Burner Flame (Gas Models)

a. While supporting the access panel, remove

two screws from bottom edge of access panel.

b. Gently lower the access panel to disengage

locators from bottom edge of front panel.

c. Add coins or card to satisfy vend.

d. Close the loading door. Start the dryer in a

heat setting (refer to Operating Instructions supplied with the dryer). The dryer will start, the igniter will glow red, and the main burner will ignite.

e. Allow the dryer to operate for approximately

five minutes, then loosen the air shutter lockscrew. Refer to Figure 19.

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

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

Shut-Off Valve

Handle

g. After proper flame is obtained, tighten air

shutter lockscrew firmly. Refer to Figure 19.

h. Reinstall access panel and screws.

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

Air Shutter Lockscrew

Air

1/8 Inch Pipe Plug

(For checking manifold pressure)

Shutter

Figure 19

98 802748

D265SE3A

ALLIANCE BTEBCFSP171TW01, BTEL75QN4065, BTEBLFSP431AW01, BTEBEFSP171TW01, BTEBEFSP281CW01 Troubleshooting Manual

Specifications and Main Features

Frequently Asked Questions

User Manual