Alliance Laundry Systems CU050N, DR55G2-BA050L, DR55G2-BA050N, DR55G2-BT050D, DR55G2-BT050L Troubleshooting Manual

Drying Tumblers

TMB795C

50 Pound Capacity 75 Pound Capacity

Starting Serial No. 0904004427

Refer to Page 7 for Model Numbers

Troubleshooting

www.comlaundry.com

TMB795C

Part No. 70422101

October 2009

Table of

Content s

Section 1 – Safety Information .......................................................... 4

Locating an Authorized Service Person ............................................... 6

Safety Warnings and Decals................................................................. 6

Safety Precautions for Servicing Tumblers.......................................... 6

Section 2 – Introduction..................................................................... 7

Model Identification ............................................................................. 7

Serial Plate Location ............................................................................. 9

Customer Service.................................................................................. 9

Wiring Diagram............................................................................... ..... 9

How a Tumbler Works ......................................................................... 10

Theory of Operation of Instant Electronic Ignition.............................. 10

Section 3 – Troubleshooting............................................................... 11

1. Motor Does Not Start............................................................... 12

2. Motor Overload Protector Cycles Repeatedly......................... 13

3. Motor Runs But Cylinder Does Not Turn................................ 14

4. Motor Does Not Stop............................................................... 15

5. Heating Element Does Not Heat or Burner

Does Not Ignite........................................................................ 16

6. Igniter Does Not Shut Off After Gas Ignition –

Gas Burner ............................................................................... 18

7. Heating Element or Burner Shuts Off Prematurely................. 19

8. Heating Element or Burner Repeatedly Cycles

Off On High Limit Thermostat................................................ 20

9. Heating Element or Burner Does Not Shut-Off....................... 21

10. Clothes Do Not Dry ................................................................. 22

11. Tumbler Overheating............................................................... 23

12. Burners Not Burning Properly — Gas Models........................ 24

13. Loading Door Opens During Operation................................... 25

14. Tumbler Runs But No Steam To Coils — Steam Models....... 26

15. Water In Steam Line — Steam Models................................... 27

16. Door Open Light and Display Flash With Door Closed ......... 28

17. Display Shows “SH” and Signals Sounds ............................... 29

18. Display Shows “OP” and Signal Sounds Three Minutes

After Tumbler is Started ......................................................... 30

19. Motor Runs, Time on Drying Timer But No Heat................... 31

20. No Main Burner Flame, Igniter Does Not Spark..................... 33

21. Steam OM Control: No Heat With Cycle Selected,

Unit Running and Calling For Heat......................................... 34

22. OM and RM Control: No Start With Cycle Selected,

Start Button Pressed and Door Closed..................................... 35

23. OM Control: No Display After Selecting One of the

ON/SELECT Keys................................................................... 37

24. Electric OM Control: No Heat With Cycle Selected,

Unit Running and Calling For Heat......................................... 38

25. Gas OM Control: No Heat With Cycle Selected,

Unit Running and Calling For Heat......................................... 40

the expressed written consent of the publisher.

70422101 1

26. OM Control: No Fan Motor Rotation With Cycle

Selected and Start Pressed........................................................ 42

27. OM Reversing Control: No Cylinder Rotation or Reversing

Capabilities............................................................................... 44

Section 4 – Adjustments..................................................................... 46

28. Main Gas Burner Air Inlet Shutters (Gas Models).................. 46

29. Airflow Switch (Gas and Electric Models).............................. 47

30. Loading Door Strike................................................................. 48

31. Drive Belt Tension................................................................... 48

32. Cylinder Clearance................................................................... 51

Section 5 – Micro Display Control (MDC) Troubleshooting .......... 52

33. Coins Ignored When Entered................................................... 52

34. Control Has No Display........................................................... 53

35. Door Open Indicator ................................................................ 55

36. Motor Will Not Start/Run........................................................ 57

37. Unit Will Not Heat – Gas......................................................... 60

38. Unit Will Not Heat – Steam..................................................... 63

39. Unit Will Not Heat – Electric .................................................. 66

40. Error Codes.............................................................................. 69

Section 6 – NetMaster Troubleshooting – KT075 Models Only..... 70

41. No Infrared Communication.................................................... 71

42. Coins Ignored When Entered................................................... 72

43. No Display ............................................................................... 73

44. “Door Open” Indicator............................................................. 75

45. No Start/Run ............................................................................ 77

46. Unit Will Not Heat – Gas......................................................... 79

47. Unit Will Not Heat – Steam..................................................... 82

48. Unit Will Not Heat – Electric .................................................. 84

49. CE Models No Display............................................................ 87

50. CE Models “Door Open” Indicator.......................................... 89

51. CE Models No Start/Run ......................................................... 91

52. CE Models Will Not Heat – Gas.............................................. 93

53. CE Models Will Not Heat – Steam.......................................... 96

54. CE Models Will Not Heat – Electric ....................................... 98

2 70422101

Section 8 – On Premise Micro Control (OM) Troubleshooting..... 101

55. Control Has No Display........................................................... 102

56. Door Open Indicator ................................................................ 104

57. Motor Will Not Start/Run........................................................ 106

58. Unit Will Not Heat – Gas......................................................... 109

59. Unit Will Not Heat – Steam..................................................... 112

60. Unit Will Not Heat – Electric .................................................. 114

61. Error Codes.............................................................................. 117

Section 9 – Hybrid Timer Control Troubleshooting....................... 118

62. Coins Ignored When Entered................................................... 118

63. Control Has No Display – QT and RQ

Control Suffixes....................................................................... 119

64. Display Flashes “dr” With Door Closed – QT and RQ

Control Suffixes....................................................................... 121

65. Vend Satisfied, No In Use LED – SD and SX

Control Suffixes....................................................................... 124

66. In Use LED Lit, No Motor Run – SD and SX

Control Suffixes....................................................................... 127

67. Motor Will Not Start/Run – SD and SX Control Suffixes....... 129

68. Motor Will Not Start/Run – QT and RQ Control Suffixes...... 131

69. Unit Will Not Heat – Gas – SD and SX Control Suffixes....... 133

70. Unit Will Not Heat – Gas – QT and RQ Control Suffixes ...... 136

71. Unit Will Not Heat – Electric – QT and RQ

Control Suffixes....................................................................... 139

72. Error Codes.............................................................................. 142

Section 10 – Quantum Control Troubleshooting............................. 143

73. No Infrared Communication.................................................... 144

74. Coins Ignored When Entered................................................... 145

75. No Display ............................................................................... 146

76. “Door Open” Indicator............................................................. 148

77. No Start/Run ............................................................................ 150

78. Unit Will Not Heat – Gas......................................................... 153

79. Unit Will Not Heat – Steam..................................................... 156

80. Unit Will Not Heat – Electric .................................................. 158

81. CE Models No Display............................................................ 162

82. CE Models “Door Open” Indicator.......................................... 164

83. CE Models No Start/Run ......................................................... 166

84. CE Models Will Not Heat – Gas/Steam................................... 169

85. CE Models Will Not Heat – Electric ....................................... 172

70422101 3

Section 1

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

DANGER

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

WARNING

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

CAUTION

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

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

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

W006R2

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.

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

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.

4 70422101

Safety Information

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

• Disconnect electric power to the tumbler before servicing.

• Never start the tumbler with any guards/ panels removed.

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

W240

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 product, you must assume the responsibility for any personal injury or property damage which may result. The manufacturer will not be responsible for any injury or property damage arising from improper service and/or service procedures.

W008

CAUTION

IMPORTANT INFORMATION: During the lifetime of a tumbler, it may require service. The information contained in this manual was written and is intended for use by qualified service technicians who are familiar with the safety procedures required in the repair of a tumbler, and who are equipped with the proper tools and testing equipment.

NOTE: The WARNING and IMPORTANT instructions appearing in this manual are not meant to cover all possible conditions and situations that may occur. It must be understood that common sense, caution and carefulness are factors which CANNOT be built into this tumbler. These factors MUST BE supplied by the person(s) installing, maintaining or operating the tumbler.

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

70422101 5

Safety Information

Locating an Authorized Service Person

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.

Safety Warnings and Decals

SAFETY WARNINGS and decals have been provided in key locations to remind you of important precautions for the safe operation and maintenance of your tumbler. Please take the time to review these warnings before proceeding with service work.

All decals have been designed and applied to withstand washing and cleaning. Decals should be checked periodically to be sure they have not been damaged, removed, or painted.

Safety Precautions for Servicing Tumblers

Prior to servicing tumbler:

 Disconnect electrical service and “lockout” to

prevent unintentional connection.

 Shut off supply gas valve.  Allow machine to cool prior to servicing.

After servicing tumbler:

 Control/access panels must be reinstalled.  Motor/drive/belt guards must be reinstalled.  Contactor/junction/accessory box covers must

be reinstalled.

 Use a non-corrosive leak detection solution to

check all pipe connections for gas leaks. DO NOT USE AN OPEN FLAME TO CHECK FOR GAS LEAKS!

 The loading door switch, lint door switch and

airflow switch must be operating properly.

6 70422101

Section 2

Introduction

Model Identification

Information in this manual is applicable to these models:

Gas Steam/Thermal Oil Electric

PA050L PA050N PT050L PT050N PU050L PU050N SA050L SA050N ST050D ST050L ST050N SU050L SU050N UA050L UA050N UT050L UT050N UU050L UU050N YT050L YT050N

50

Pound

CA050L CA050N CT050L CT050N CU050L CU050N DR55G2-BA050L DR55G2-BA050N DR55G2-BT050D DR55G2-BT050L DR55G2-BT050N DR55G2-BU050L DR55G2-BU050N GA050L GA050N GT050L GT050N GU050L GU050N HA050L HA050N

HT050D HT050L HT050N HU050L HU050N IPD50G2-IT050L IPD50G2-IT050N KA050L KA050N KT050L KT050N KU050L KU050N LA050L LA050N LT050L LT050N LU050L LU050N

CT050S CT050T CU050S CU050T DR55S2-BT050S DR55S2-BT050T DR55S2-BU050S DR55S2-BU050T GT050S GT050T GU050S GU050T HT050S HT050T HU050S HU050T IPD50S2-IT050S IPD50S2-IT050T KT050S

KT050T KU050S KU050T LT050S LT050T LU050S LU050T PT050S PT050T PU050S PU050T ST050S ST050T SU050S SU050T UT050S UT050T UU050S UU050T YT050S YT050T

CT050E CU050E DR55E2-BT050E DR55E2-BU050E GT050E GU050E HT050E HU050E IPD50E2-IT050E KT050E KU050E LT050E LU050E PT050E PU050E ST050E SU050E UT050E UU050E YT050E

(continued)

NOTE: Control suffixes listed on next page.

70422101 7

Introduction

CA075L CA075N CT075L CT075N CU075L CU075N DR80G2-BA075L DR80G2-BA075N DR80G2-BT075D DR80G2-BT075L DR80G2-BT075N

75

Pound

DR80G2-BU075L DR80G2-BU075N GA075L GA075N GT075L GT075N GU075L GU075N HA075L HA075N HT075D

Gas Steam/Thermal Oil Electric

HT075L HT075N HU075L HU075N IPD75G2-IT075L IPD75G2-IT075N KA075L KA075N KT075L KT075N KU075L KU075N LA075L LA075N LT075L LT075N LU075L LU075N PA075L PA075N PT075L

PT075N PU075L PU075N SA075L SA075N ST075D ST075L ST075N STF75L STF75N SU075L SU075N UA075L UA075N UT075L UT075N UTF75L UTF75N UU075L UU075N YT075L YT075N

CT075S CT075T CU075S CU075T DR80S2-BT075S DR80S2-BT075T DR80S2-BU075S DR80S2-BU075T GT075S GT075T GU075S GU075T HT075S HT075T HU075S HU075T IPD75S2-IT075S IPD75S2-IT075T KT075S KT075T KU075S

KU075T LT075S LT075T LU075S LU075T PT075S PT075T PU075S PU075T ST075S ST075T SU075S SU075T UT075S UT075T UU075S UU075T YT075S YT075T YU075S YU075T

CT075E CU075E DR80E2-BT075E DR80E2-BU075E GT075E GU075E HT075E HU075E IPD75E2-IT075E KT075E KU075E LT075E LU075E PT075E PU075E ST075E SU075E UB075E UT075E UU075E YT075E YU075E

Includes models with the following control suffixes:

3O - DX4 OPL LC - network adaptable coin R3 - reversing DX4 OPL 3V - DX4 vended LX - network adaptable, 3X - DX4 prep for coin RM - reversing OPL micro

prep for coin BC - basic electronic, coin LY - network adaptable, BL - basic electronic, central pay SD - single drop

prep for card

RD - reversing DMP OPL

RQ - reversing dual digital timer

BX - basic electronic, prep for coin NC - NetMaster coin SX - single drop, prep for coin BY - basic electronic, prep for card NX - NetMaster, prep for coin WC - network ready coin DO - DMP OPL NY - NetMaster, prep for card WX - network ready, prep for coin DV - DMP vended OM - OPL micro WY - network ready, prep for card DX - DMP prep for coin QT - dual digital timer

8 70422101

Serial Plate Location

10

2

0

4

0

30

50

60

0

10

5

PU

SH TO

ST

AR

T

HE

AT

COOL D

OWN

HIGH

TEMPERATURE

LOW

15

0

Serial

Plate

TMB2235N

When calling or writing about your product, be sure to mention model and serial numbers. Model and serial numbers are found on serial plate on the rear of machine and inside door.

Introduction

Customer Service

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

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

Wiring Diagram

The wiring diagram is located inside the junction or contactor box.

The wiring diagram part number is in the lower portion of the electrical data on the serial plate.

70422101 9

Introduction

TMB2347S

123

How a Tumbler Works

1

2

3

TMB2347S

A tumbler uses heated air to dry loads of laundry.

When the motor is started, the exhaust fan pulls room temperature air in through the air intake at the rear of the tumbler and over the heat source (burner flame for gas, heating element for electric, and coil for steam).

The heated air moves into the cylinder, where it is circulated through the wet load by the tumbling action of the cylinder.

Theory of Operation of Instant Electronic Ignition

IMPORTANT: The Non-CE Marked Instant Electronic Ignition system will attempt to light the gas by sparking for approximately 15 seconds. If gas ignition does not take place within approximately 15 seconds, the Instant Electronic Ignition control will go into safety lockout and the valve will no longer open until Instant Electronic Ignition control is reset. To reset Instant Electronic Ignition control, remove power from control by opening and closing the tumbler door. If condition persists, check that the gas shut-off valve is in “on” position and that the gas service is properly connected.

If condition persists:

1. Check resistance of high tension lead (approximately 1000 ohms/inch), and replace if not within resistance range.

2. Check voltage present at valve.

3. Check that machine is properly grounded.

4. Check the gap between igniter and burner tube (gap should be 1/4-3/8 inch).

5. Check that burner ports are not blocked or plugged under the igniter.

The air then passes through the lint filter, exhaust fan, and is vented to the outdoors.

10 70422101

Section 3

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

• Disconnect electric power to the tumbler before servicing.

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

• Close steam valve to steam tumbler before servicing.

• Never start the tumbler with any guards/panels removed.

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

W002

WARNING

Troubleshooting

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

70422101 11

Troubleshooting

Motor does

not start

Is electrical

power off or

have any fuses

blown?

Check power

and fuses.

Replace fuses

if necessary.

Is loading door

open or is door

switch

inoperative?

No

Close door or

test switch and

replace if

inoperative.

Is lint door

open or is lint

door switch

inoperative?

Close lint door,

confirm switch

is positioned to

actuate with

door closed.

Is

trunnion shaft

assembly binding in

trunnion housing

bearings?

Replace trunnion

housing bearings.

Is start

circuit

incomplete?

Yes

Press start switch or

test switch and replace

if inoperative.

Yes

Is idler shaft

binding in idler

housing

bearings?

Replace

bearings.

Yes

Is motor

inoperative?

Have motor tested and

replace if inoperative.

Yes

Non-Metered

Models: Is

timer set

properly?

Turn drying timer clockwise

to desired setting.

Non-Metered

Models: Are the

timer or relay

inoperative?

No

Test timer and relay and

replace if inoperative.

Metered Models:

Are proper coins

inserted in

accumulator?

If motor still does not start, replace motor.

Check that proper

coins are inserted.

Yes

No

Yes

No

Yes

No

TMB2264S

No

TMB2264S

1. Motor Does Not Start

12 70422101

2. Motor Overload Protector Cycles Repeatedly

TMB1874S

Motor overload

protector

cycles

repeatedly

Is voltage incorrect?

No

Yes

Troubleshooting

Refer to the

Installation

Manual for

electrical

requirements.

Is clothes

load too

large?

No

Is clothes

cylinder

binding?

No

Is wiring

inadequate?

No

Is make-up

air

inadequate?

Yes

Remove part of

load.

Check cylinder

for binding.

Refer to

Adjustments

Section for

cylinder

adjustment.

Check with an

electrician to

ensure that

wiring is

adequate.

Refer to

Installation

Manual for

make-up air

requirements.

built up?

Is there broken,

loose or

incorrect wiring?

70422101 13

No

Has lint

No

Yes

Clean lint

accumulation

on and around

motor.

Refer to wiring

diagram

located inside

contactor box.

TMB1874S

Troubleshooting

TMB1875S

3. Motor Runs But Cylinder Does Not Turn

Motor runs but

cylinder does

not turn

Is motor

drive

pulley

loose?

No

Is sheave

loose?

No

Is belt

broken

or loose?

No

Is

cylinder

binding?

No

Yes

Confirm key is

in place,

tighten

setscrews.

Confirm key is

in place,

tighten

setscrews and

bushing.

Replace or

adjust belt.

Check cylinder

for binding.

Refer to

Adjustments

Section for

proper cylinder

adjustment.

Does cylinder turn

counterclockwise when

viewed from front of

machine (3 Phase

models only)?

14 70422101

Yes

Switch power

leads L1 and

L2 to correct

rotation.

TMB1875S

4. Motor Does Not Stop

TMB1876S

Motor does not

stop

Troubleshooting

Is door

switch

inoperative?

No

Non-Metered

Models: Is timer

or relay

inoperative?

No

Metered

Models: Is accumulator inoperative?

Yes

Test switch and

replace if

inoperative.

Test timer and

relay and

replace if

inoperative.

Te st

accumulator

and replace if

inoperative.

Is wiring

incorrect?

Is motor relay

or motor

contactor

inoperative?

70422101 15

No

Yes

Refer to wiring

diagram

located inside

contactor box.

Check

relay/contactor

and replace if

inoperative.

TMB1876S

Troubleshooting

Heating element does not heat or

burner does not

ignite

Is there

improper or

inadequate

exhaust or

make-up air?

Refer to

Installation

Manual for

exhaust and

make-up air

requirements.

Are there

blown fuses

or tripped

circuit

breakers?

Check fuses

or circuit

breakers.

Is drying timer not

selected or

inoperative?

Set drying

timer or

replace if

necessary.

Is "No Heat"

selected on

control?

Select

temperature

option.

Is control

relay

inoperative?

Test relay and

replace if

inoperative.

Is thermistor inoperative?

Test thermistor by

removing harness from

thermistor terminals.

Check resistance across

terminals, should read

approximately 50,000

Ohms at 77°F.

Resistance should

decrease with a

temperature increase.

Replace thermistor if

inoperative.

Electric Models:

Are heating

elements or

contactors

inoperative?

Check heat

contactors

and elements.

Replace if

necessary.

Gas Models:

Is gas supply

insufficient?

Open partially closed gas

shut-off valve, or correct

low gas pressure. Check

inlet pressure and

compare to pressure

specified on serial plate.

If pressure cannot be

obtained, contact gas

supplier.

Continued on

Are orifices

incorrect?

Tumbler is equipped

for type of gas

specified

on serial plate at

0-2,000 feet altitude. Refer to Installation

Manual .

Ye s

No

Ye s

No

Ye s

No

Ye s

No

Ye s

No

Ye s

No

Ye s

No

Ye s

No

Ye s

No

TMB2324S-a

5. Heating Element Does Not Heat or Burner Does Not Ignite

16 70422101

5. Heating Element Does Not Heat or Burner Does Not Ignite (continued)

Clean lint compartment after every eight hour shift.

Continued from

Are gas valve coils

inoperative?

Test coils and

replace if

available as a

service part,

otherwise

replace valve.

Gas Models:

Is igniter

inoperative?

Gas Models:

Is igniter control

inoperative?

Test igniter and

replace if

inoperative.

Test igniter

control and

replace if

inoperative.

Is

airflow switch

inoperative?

Check back draft damper for foreign objects, lint accumulation or other causes that may prevent damper from opening. Check ductwork for lint build-up. Refer to Installation Manual to ensure that ductwork and make-up air openings are sized properly. Check exhaust outlet. If a screen has been installed on the outlet, it may be clogged with lint or frozen over in winter. NEVER install a screen over the exhaust outlet.

Is lint door

panel not

closed

properly?

Open lint door

panel. Place lint

door panel back on

tumbler ensuring a

tight fit.

Is there

broken, loose

or incorrect

wiring?

Refer to wiring

diagram

located inside

contactor box.

Ye s

No

Ye s

No

Ye s

No

Gas and Electric

Models: Is high

limit thermostat

inoperative?

Test thermostat

and replace if

inoperative.

Ye s

No

Yes

No

Ye s

No

Ye s

TMB2324S-b

No

TMB2324S-b

Troubleshooting

70422101 17

Troubleshooting

Igniter does not

shut off after

gas

ignition - gas

burner

Is tumbler not

properly equipped for

type of gas being

used?

Tumbler is equipped for type of gas specified on

serial plate at 0-2,000

feet altitude. Refer to

Installation Manual.

Is there

insufficient gas

supply?

Open partially

closed gas shut-off

valve or correct low

gas pressure.

Is burner flame

adjusted

improperly?

Refer to

Adjustments

Section for

recommended

burner flame

adjustment.

Is electrode assembly

incorrectly installed?

Check

assembly for

correct

alignment.

Is igniter control

inoperative?

Test igniter control and

replace if

inoperative.

Is wiring

incorrect?

Refer to wiring

diagram located inside contactor box.

Yes

No

Yes

No

Yes

No

Yes

No

Yes

No

Yes

TMB1878S

6. Igniter Does Not Shut Off After Gas Ignition — Gas Burner

18 70422101

7. Heating Element or Burner Shuts Off Prematurely

TMB1879S

Heating

element or

burner shuts off

prematurely

Refer to Is there improper or inadequate exhaust

and/or make-up air?

No

Ye s

Installation

Manual for exhaust

and make-up air

requirements.

Troubleshooting

Gas Models: Is

there insufficient

gas supply?

No

Gas Models: Is tumbler

not properly equipped

for type of gas used?

No

Gas Models: Is

burner flame

improperly adjusted?

No

Ye s

closed gas shut-off

valve or correct low

pressure.

Tumbler is equipped for

Open partially

type of gas specified on

Ye s

serial plate at 0-2,000

feet altitude. Refer to

Installation Manual.

Refer to

Ye s

Adjustments

Section for burner flame adjustment.

Is high limit

thermostat

cycling off?

Is there

broken, loose

or incorrect

wiring?

70422101 19

No

Ye s

Refer to

Paragraph 8.

Refer to wiring

diagram

located inside contactor box.

TMB1879S

Troubleshooting

Heating element or

burner repeatedly

cycles off on high

limit thermostat

Is external exhaust system longer than recommended or is

there inadequate

make-up air?

Refer to

Installation

Manual for

exhaust and

make-up air

requirements.

Is lint

screen

clogged?

Remove screen

and clean. Lint

screen and

compartment

should be cleaned

after every eight

hour shift.

Is there lint

in tumbler

ducts?

Clean tumbler

ducts.

Is there lint

in external

exhaust

system?

Disassemble

exhaust

system and

clean.

Is high limit

thermostat

cycling at too

low a

temperature?

Replace

thermostat.

Is lint door

panel not

closed

properly?

Open lint door panel, place lint door panel back

on tumbler

ensuring a tight fit.

Is backdraft damper not

operating?

Check for

foreign

objects, lint

accumulation

or other

possible

obstructions.

TMB1880S

Yes

No

Yes

No

Yes

No

Yes

No

Yes

No

Yes

No

Yes

TMB1880S

8. Heating Element or Burner Repeatedly Cycles Off On High Limit Thermostat

20 70422101

9. Heating Element or Burner Does Not Shut-Off

TMB1881S

Heating element or

burner does not

shut-off

Gas Models: Are

there impurities on

gas valve seat,

preventing valve

from closing?

Yes

Troubleshooting

Replace gas

valve.

No

Is drying

timer, relay or

contactor

inoperative?

No

Is wiring

incorrect?

Yes

Replace timer,

relay or

contactor.

Refer to wiring

diagram

located inside

contactor box.

70422101 21

TMB1881S

Troubleshooting

TMB1882S

10.Clothes Do Not Dry

Clothes do

not dry

Is heat source

inoperative?

No

Is there too

much water in

articles being

dried?

No

Is clothes

load too

large?

Ye s

Paragraph 5.

Ye s

excess water.

Ye s

Remove part of

Refer to

Remove

load.

Does heat

source shut-

off

prematurely?

No

Is drying

timer

improperly

set?

No

Is voltage incorrect?

Ye s

Refer to

Paragraph 7.

Set selector for

higher setting.

Refer to

Installation

Manual for

electrical

requirements.

No

Is exhaust

system

improper or

inadequate?

Ye s

requirements.

Installation

Manual for

No

22 70422101

Refer to

exhaust

No

Is make-up

air

inadequate?

Ye s

Refer to

Installation

Manual for

make-up air

requirements.

TMB1882S

11.Tumbler Overheating

Tumbler

overheating

Gas Models:

Are main

burner orifices

incorrect?

Replace orifices.

Refer to the

Installation

Manual for burner

orifice

requirements.

Gas Models:

Is gas

pressure too

high?

Gas pressure

must be as

specified on

serial plate.

Is make-up air

inadequate?

Refer to

Installation

Manual for

make-up air

requirements.

Is there lint

accumulation?

Remove lint.

Is exhaust

system

restricted or

inadequate?

Remove

obstruction or lint

build-up from

exhaust ductwork.

Refer to

Installation

Manual for exhaust

system

requirements.

Is

thermistor

inoperative?

Test thermistor by

removing harness from

thermistor terminals. Check

resistance across

terminals, should read

approximately 50,000

Ohms at 77°F. Resistance

should decrease with a

temperature increase.

Replace thermistor if

inoperative.

Is cabinet

limit or burner

limit

thermostat

inoperative?

Check

thermostats

with Ohm

meter and

replace if open.

TMB1883S

Yes

No

Yes

No

Yes

No

Yes

No

Yes

No

Yes

No

Yes

TMB1883S

Troubleshooting

70422101 23

Troubleshooting

Burners not

burning

properly - Gas

Models

Are burner air

shutters incorrectly

adjusted?

Refer to

Adjustments

Section for

proper flame

adjustment.

Is there dirt in burners?

Disassemble

burners and blow out the

dirt.

Is gas pressure too

high or too low?

Check serial

plate on back

of the tumbler

for correct gas

pressure.

Are orifices incorrect?

Tumbler is equipped for type of gas specified on

serial plate at 0-2,000

feet altitude. Refer to Installation Manual.

Is make-up air

inadequate?

Refer to

Installation

Manual for proper

make-up air

requirements.

Is exhaust duct

restricted or blocked?

Disassemble and

clean exhaust

system.

TMB1884S

Ye s

No

Ye s

No

Ye s

No

Ye s

No

Ye s

No

Ye s

TMB1884S

12.Burners Not Burning Properly — Gas Models

24 70422101

13.Loading Door Opens During Operation

TMB1885S

Loading door

opens during

operation

Is door strike

improperly

adjusted?

Yes

Troubleshooting

Refer to

Adjustments

Section for

door strike

adjustment.

No

Is tumbler

improperly

leveled?

Yes

Refer to

Installation

Manual for

leveling leg

adjustment.

TMB1885S

70422101 25

Troubleshooting

TMB1886S

14.Tumbler Runs But No Steam To Coils — Steam Models

Tumbler runs but

no steam to

coils - Steam

Models

Check all

valves in

supply and

return lines,

make sure they

are open.

Are valves

closed?

No

Yes

Is steam trap

blocked?

No

Is solenoid valve

inoperative?

No

Is check valve

incorrectly installed?

No

Is strainer clogged?

Yes

Remove trap

and clean. Replace if

inoperative.

Check

operation of

solenoid valve.

Check for inlet and

outlet markings on

check valve and

invert if necessary.

Remove strainer

and clean.

No

Is timer or thermistor

inoperative?

26 70422101

Yes

Test timer. Test thermistor by removing

harness from thermistor terminals. Check

resistance across terminals, should read

approximately 50,000 Ohms at 77°F.

Resistance should decrease with a

temperature increase. Replace either if

inoperative.

TMB1886S

15.Water In Steam Line — Steam Models

TMB1887S

Water in steam

line - Steam

Models

Troubleshooting

Is steam

piping

installed

incorrectly?

No

Is trap

functioning

improperly?

Yes

Refer to

Installation

Manual for

steam

requirements.

Check trap for size

and capacity. If trap is

dirty or sluggish clean thoroughly or replace.

Check return line for

high back pressure.

70422101 27

TMB1887S

Troubleshooting

Door open light and

display flash with door

closed

Is door switch

faulty?

Replace door

switch.

Is lint panel

switch faulty?

Replace lint

panel switch.

Is electrical service

connected incorrectly?

Check service connections to

terminal block in junction box.

For 120 or 240 Volt tumblers,

neutral wire must be

connected to terminal marked

“NEUT”. On single phase

tumblers, hot wire must be

connected to terminal marked

“L1”. A ground wire must be

secured to the ground screw in

the junction box.

TMB2265S

Yes

No

Yes

No

Yes

TMB2265S

16.Door Open Light and Display Flash With Door Closed

28 70422101

17.Display Shows “SH” and Signals Sounds

TMB2266S

Display shows

“SH” and signals

sounds

Is

thermistor over

191°F (88.3°C)?

Yes

ON/SELECT pad. If

Troubleshooting

Allow tumbler to

cool and press

display still shows

“SH”, replace

thermistor.

No

Has

thermistor

or harness

shorted?

Yes

Replace

thermistor.

TMB2266S

70422101 29

Troubleshooting

TMB2267S

18.Display Shows “OP” and Signal Sounds Three Minutes After Tumbler is Started

Display shows “OP”

and signal sounds

three minutes after

tumbler is started

Is

thermistor

under

24°F (-4.4°C)?

No

Is

thermistor

or harness

open?

Yes

If the temperature of the tumbler is above

24°F (-4.4°C), replace

thermistor.

Replace

thermistor.

TMB2267S

30 70422101

19.Motor Runs, Time on Drying Timer But No Heat

Motor runs,

time on drying

timer but no

heat

Is there

power out of

temperature

control board?

Check the

ignition circuit.

Is there

power into

temperature

control board?

Check

thermistor and

cable. If OK,

replace

temperature

control board.

Is there

broken or

loose wire at

harness plug?

Repair wire.

Is there

power into

burner high

limit

thermostat?

Check for broken wire from airflow

switch.

TMB2268S-a

Yes

No

Yes

No

Continued on

next page.

Yes

TMB2268S-a

Troubleshooting

70422101 31

Troubleshooting

Continued from

previous page.

TMB2268S-b

Is there

power out of

burner high

limit

thermostat?

Replace burner

high limit

thermostat.

Is there

power into

airflow switch?

Check for loose

or broken wire

from cabinet

limit.

Is there

power out

of airflow

switch?

Is airflow

switch

closed?

Adjust airflow

switch.

Replace airflow

switch.

Is there

power into

cabinet high

limit

thermostat?

Check for

broken wire

from motor

switch.

Is there power out of cabinet high

limit

thermostat?

Replace

thermostat.

Check for loose

or burned

connection at

harness plugs.

No

Yes

No

Yes

No

Yes

No

Yes

TMB2268S-b

19.Motor Runs, Time on Drying Timer But No Heat (continued)

32 70422101

20.No Main Burner Flame, Igniter Does Not Spark

No main burner

flame, igniter

does not spark

Is igniter

sparking?

Is IEI

control in

safety

lockout?

Non-CE and

non-Australian models:

Open and close door.

CE and Australian models:

Press and hold reset button

until light goes out on the

button.

Is resistance of

high voltage lead

greater than

25,000 Ohms or

less than 5,000

Ohms?

Replace high

voltage lead.

Is igniter gap

not 5/32 in.

(.397 cm) or is

ceramic

cracked?

TMB2326S

Re-gap or

replace

igniter.

Replace

IEI control.

Is green wire

from IEI

control

connected to

ground

terminal?

Connect green

wire to ground

terminal.

Is gas

shut-off

valve

open?

Open gas shut-

off valve.

Is there 24 volts

present on

white/black wire

from IEI control?

Check gas valve coils.

Replace as

required.

Replace IEI

control.

No No

Yes

No

Yes

No

Yes

No

Yes

No

Yes

No

Yes

TMB2326S

Troubleshooting

70422101 33

Troubleshooting

Steam OM Models:

No heat with cycle

selected, unit

running and calling

for heat

Is there

voltage at

H2-13?

Replace micro

control.

Is there

voltage at

H2-6?

Correct wiring between H2-6

and H2-13.

Is there

voltage at

H2-5?

Check for proper

thermistor

operation. Replace

micro control if

necessary.

Is there

voltage to the

input of the

motor relay?

Correct wiring

between motor

relay and micro

control.

Is there voltage

to the output of

the motor relay?

Replace motor

relay.

TMB1892S

Is there

voltage to the

input of the

motor switch?

Correct wiring

to motor

switch.

Is there

voltage to the

output of the

motor switch?

Replace motor.

Is there

voltage across

the steam

valve coil?

Correct wiring

to steam valve

coil.

Unit operational. If unit

still does not heat,

check steam supply.

No

Yes

No

Yes

No

Yes

No

Yes

No

Yes

No

Yes

No

Yes

No

Yes

TMB1892S

21.Steam OM Control: No Heat With Cycle Selected, Unit Running and Calling For Heat

120 Volt/60 Hertz/1 Phase and 208-240 Volt/60 Hertz/1 Phase Nonreversing 460-480 Volt/60 Hertz/3 Phase and 208-240 Volt/60 Hertz/3 Phase Reversing and Nonreversing

34 70422101

22.OM and RM Control: No Start With Cycle Selected, Start Button Pressed

OM and RM Models:

No start with cycle

selected, start button

pressed and door closed

Is there voltage to the primary of the

transformer?

Correct wiring to transformer

primary.

Check fuses.

Is there 24 VAC

across terminals 2

& 3 of transformer

secondary?

Replace

transformer.

Is there voltage to the

COM terminal

of the door

switch?

Correct wiring between door

switch and transformer. Check fuse.

Is there

voltage to the

N.O. terminal

of the door

switch?

Check door

switch for

proper operation. Replace if

necessary.

TMB1893S-a

Is there

voltage to the

COM terminal

of the lint panel

switch?

Correct wiring

between lint

panel switch

and loading door switch.

Is there

voltage to the

N.O. terminal of

the lint panel

switch?

Check lint

panel switch

for proper operation. Replace if

necessary.

Is there

voltage to

terminal H2-8

on the micro

control?

Correct wiring between micro control and lint

panel switch.

Is there

voltage at

terminal H2-7

on the micro

control?

Replace micro

control.

No

Yes

No

Yes

No

Yes

No

Yes

No

Yes

No

Yes

No

Continued on

next page.

Yes

TMB1893S-a

and Door Closed

120 Volt/60 Hertz/1 Phase Gas and Steam Nonreversing 208-240 Volt/60 Hertz/1 or 3 Phase Steam Nonreversing 208-240 Volt/60 Hertz/3 Phase Electric Nonreversing 460-480 Volt/60 Hertz/3 Phase Gas, Electric and Steam Nonreversing

Troubleshooting

70422101 35

Troubleshooting

TMB1893S-b

22.OM and RM Control: No Start With Cycle Selected, Start Button Pressed and Door Closed (continued)

Continued from

previous page.

Is there

voltage across

the coil of

motor relay?

Yes

Is there

voltage to the

input of the

motor relay?

Yes

No

Correct wiring

between motor

relay and micro

control.

Correct wiring

between motor

relay and

supply voltage.

Is there

voltage to the

output of the motor relay?

Yes

Does the

motor

operate?

Yes

No

Unit

operational.

Replace motor

relay.

Replace motor.

36 70422101

TMB1893S-b

23.OM Control: No Display After Selecting One of the ON/SELECT Keys

OM Models: No

display after

selecting one of

the on/select keys

Is there voltage

across the

primary of the

transformer?

Correct wiring

between

transformer

and supply

voltage. Check

fuses.

Is there 24 VAC

across terminals 1

& 4 of

transformers

secondary?

Replace

transformer.

Is there 24 VAC

across terminals H3-3 and H3-4 on the micro control?

Correct wiring

between H3 and

transformer.

TMB1894S

Is there voltage

to the input of

the fuse on the

micro control?

Replace micro

control.

Is there voltage to

the opposite side

of the fuse on the

micro control?

Check fuse

making sure it

is not blown.

Replace if

necessary.

Replace micro

control.

No

Yes

No

Yes

No

Yes

No

Yes

No

Yes

TMB1894S

120 Volt/60 Hertz/1 Phase Gas and Steam Nonreversing 208-240 Volt/60 Hertz/1 Phase Gas and Steam Nonreversing 208-240 Volt/60 Hertz/3 Phase Gas and Steam Reversing/Nonreversing 208-240 Volt/60 Hertz/3 Phase Electric Reversing/Nonreversing 460-480 Volt/60 Hertz/3 Phase Gas, Electric and Steam Reversing/Nonreversing

Troubleshooting

70422101 37

Troubleshooting

Electric OM Models:

No heat with cycle

selected, unit running

and calling for heat

Is there

voltage at

H2-13?

Replace micro

control.

Is there

voltage at

H2-6?

Correct wiring between H2-6

and H2-13.

If there

voltage at

H2-5?

Check for proper

thermistor

operation. Replace

micro control if

necessary.

Is

there voltage to

terminal 14

of the motor

relay?

Correct wiring

between motor

relay and

micro control.

Is

there voltage

to terminal 13 of

the motor

relay?

Replace motor

relay.

TMB2325S-a

Is there

voltage at

white/brown

fan motor

centrifugal

switch?

Correct wiring between relay

and motor

switch.

Is

there

voltage at

brown/white

fan motor

centrifugal

switch?

Replace motor.

Continued on

next page.

No

Yes

No

Yes

No

Yes

No

Yes

No

Yes

No

Yes

No

Yes

Is

there

voltage to

airflow switch

orange/brown wire

(common

terminal)?

Correct wiring

between

cabinet limit

and airflow

switch.

Is

there voltage

to the N.O.

terminal of the

airflow

switch?

Check for

proper airflow.

Replace

airflow switch.

No

Yes

No

24.Electric OM Control: No Heat With Cycle Selected, Unit Running and Calling For Heat

460-480 Volt/60 Hertz/3 Phase and 208-240 Volt/60 Hertz/3 Phase Reversing and Nonreversing

38 70422101

TMB2325S-a

Troubleshooting

Continued from

previous page.

Is there

voltage to the

input of the stove limit?

Correct wiring

between stove

limit and

airflow switch.

Is there

voltage to the

output of the

stove limit?

Check for

proper airflow.

Replace stove

limit if

necessary.

Is there

voltage across

coil of HC1?

Correct wiring

to HC1.

Is there

voltage to

terminals T1,

T2 and T3 of

HC1?

Correct wiring

between HC1

and supply.

Is there

voltage to terminals L1, L2 and L3 of

HC1?

Replace HC1.

Is there

voltage across

the elements?

Correct wiring

to the

elements.

Do the elements

produce heat?

NOTE: If elements

are glowing

bright

red/orange, there

is not enough

airflow.

TMB2325S-b

Check for

opens or shorts

in the

elements.

Unit

operational.

No

Yes

No

Yes

No

Yes

No

Yes

No

Yes

No

Yes

No

Yes

Is

there voltage

to cabinet limit

violet wire?

Correct wiring

between fan

motor

centrifugal

switch and

cabinet limit

thermostat.

Is there

voltage out of

cabinet limit

violet wire?

Replace

thermostat.

Yes

No

TMB2325S-b

24.Electric OM Control: No Heat With Cycle Selected, Unit Running and Calling For Heat (continued)

70422101 39

Troubleshooting

Gas OM Models:

No heat with cycle

selected, unit running

and calling for heat

Is there

voltage at

H2-13?

Replace micro

control.

Is there

voltage at H2-

6 of the micro

control?

Correct wiring

between H2-6

and H2-13 on

the micro

control.

Is there

voltage at

H2-5 of the

micro

control?

Check for proper

thermistor

operation. Replace

micro control if

necessary.

Is there

voltage to the

input of fan

motor switch?

Correct wiring

to fan motor

switch.

Is there

voltage out

from the fan

motor switch?

Replace fan

motor.

Is there

voltage to the

input of the

cabinet limit?

Correct wiring

between

cabinet limit

and CR1.

TMB2327S-a

Is there

voltage to

COM terminal

of the airflow

switch?

Correct wiring

between airflow

switch and

cabinet limit.

Continued on

next page.

No

Yes

No

Yes

No

Yes

No

Yes

No

Yes

No

Yes

Is there voltage to the N.O. terminal

of the airflow

switch?

Check for proper

operation and

airflow. Replace

airflow switch if

necessary.

No

Yes

Is there

voltage to

input of the

motor relay?

Correct wiring between motor relay and micro

control.

Is there voltage

to the output of

the motor relay?

Replace motor

relay.

Yes

No

Yes

No

TMB2327S-a

25.Gas OM Control: No Heat With Cycle Selected, Unit Running and Calling For Heat

120 Volt/60 Hertz/1 Phase and 208-240 Volt/60 Hertz/1 Phase Nonreversing 460-480 Volt/60 Hertz/3 Phase and 208-240 Volt/60 Hertz/3 Phase Reversing and Nonreversing

40 70422101

Troubleshooting

Continued from

previous page.

Is there

voltage to the

input of the stove limit?

Correct wiring

between stove

limit and

airflow switch.

Is there

voltage to the

output of the

stove limit?

Check for proper

airflow. Replace

stove limit if

necessary.

Is there

voltage to

terminal 2 of

the ignition

control?

Correct wiring

between

ignition control

and stove limit.

TMB2327S-b

Does the

igniter

spark?

Check for proper

gap on igniter and

check for proper

resistance of

ignition cable.

Replace if

necessary.

Is there

voltage at

terminal 1 of

the ignition

control?

Replace

ignition control.

Is there voltage

across the

gas valve?

Correct wiring

to gas valve.

Is there a

flame?

Check for gas

flow and proper

gas pressure.

Replace gas

valve or coils of

gas valve.

Unit

operational.

No

Yes

No

Yes

No

Yes

No

Yes

No

Yes

No

Yes

No

Yes

Is there

voltage to the

output of the

cabinet limit?

Replace

cabinet limit.

Yes

No

TMB2327S-b

25.Gas OM Control: No Heat With Cycle Selected, Unit Running and Calling For Heat (continued)

70422101 41

Troubleshooting

TMB1897S-a

26.OM Control: No Fan Motor Rotation With Cycle Selected and Start Pressed

208-240 Volt/60 Hertz/3 Phase and 480 Volt/60 Hertz/3 Phase Electric Reversing Models 208-240 Volt/60 Hertz/3 Phase and 460-480 Volt/60 Hertz/3 Phase Gas Reversing and Steam Models

OM Models: No fan

motor rotation with cycle selected and

start pressed

Is there voltage

across the primary

of the transformer?

Yes

Is there 24 VAC

across terminals 2 &

3 of the transformer

secondary?

Yes

Correct wiring

No

to transformer.

Check fuses.

No

Replace

transformer.

Is there

voltage out of

lint panel

switch?

Yes

Is there

voltage to H2-

8 of micro

control?

Yes

Is there

voltage to H2-

7 of micro

control?

If actuated

replace

inoperative

No

switch. If not

actuated adjust

switch as

needed.

Correct wiring

No

between micro

control and

door switch.

No

Replace micro

control.

Is there voltage

to the COM of

the door switch?

Yes

Is there voltage to

the N.O. terminal

of the door switch?

Yes

Is there voltage into

lint panel switch?

Yes

No

Correct wiring

to door switch.

Check fuse.

Check door switch

No

for proper

operation. Replace

if necessary.

Correct wiring

No

between door

switch and lint

panel switch.

Yes

Is there voltage

across the coil

of the M

contactor?

Yes

Is there voltage

to L1, L2 and L3

of the M

contactor?

Yes

Correct the

No

wiring to the M

contactor.

Correct wiring

No

between M

contactor and

supply voltage.

Continued on

next page.

TMB1897S-a

42 70422101

26.OM Control: No Fan Motor Rotation With Cycle Selected and Start

Continued from

previous page.

Is there voltage

to T1, T2 and T3

of the M

contactor?

Replace M

contactor.

Is there voltage

across L1, L2

and L3 of the

motor?

Correct wiring

between motor

and M

contactor.

Unit

operational.

TMB1897S-b

No

Yes

No

Yes

TMB1897S-b

Pressed (continued)

Troubleshooting

70422101 43

Troubleshooting

TMB2328S-a

27.OM Reversing Control: No Cylinder Rotation or Reversing Capabilities

208-240 Volt/60 Hertz/3 Phase and 480 Volt/60 Hertz/3 Phase Electric Models 208-240 Volt/60 Hertz/3 Phase and 460-480 Volt/60 Hertz/3 Phase Gas and Steam Models

OM Reversing

Models: No

cylinder rotation or

reversing

capabilities

Is there voltage

across the

primary of the

transformer?

No

Correct wiring

between

transformer

and supply

voltage. Check

fuses.

Is there

voltage into

lint panel

switch?

Yes

Is there

voltage out of

lint panel

switch?

Correct wiring

No

between door switch and lint

panel switch.

If actuated replace inoperative switch.

No

If not actuated

adjust switch as

needed.

Yes

Is there voltage

across terminals 2

& 3 of the transformer secondary?

Yes

Is there voltage

to the COM of

the door switch?

Yes

Is there voltage

to the N.O.

terminal of the

door switch?

Yes

No

transformer.

Correct wiring

to door switch.

Check fuses.

Correct wiring

Replace

and check

fuses.

Yes

Is there voltage to H2-8 terminal of micro control?

Continue to next

step for forward

rotation or next

page for reverse

rotation.

Yes

Forward

Rotation: Is

there voltage

to H2-3 of

micro control?

Yes

Correct wiring

No

between micro

control and

door switch.

Make sure

unit is in the

No

forward portion

of rotation.

Replace micro

control.

Continued on

next page.

44 70422101

TMB2328S-a

Troubleshooting

TMB2328S-b

27.OM Reversing Control: No Cylinder Rotation or Reversing Capabilities (continued)

Continued from

previous page.

Is there voltage

across the coil of

the reverse relay?

No

Correct the

wiring to the

relay.

Is there voltage

across the coil

of the forward

relay?

Yes

Is

there voltage

to terminals L1,

L2 and L3 of

the forward

contactor?

Yes

Is

there voltage

to terminals T1,

T2 and T3 of

the forward

contactor?

Yes

Is there voltage

across L1, L2

and L3 of the

motor?

Yes

No

Correct the

wiring to the

Correct wiring

between relay

and supply

forward relay.

Correct wiring

between motor

and forward

relay.

voltage.

Replace

relay.

Yes

Is

there voltage

to terminals L1,

L2 and L3 of

the reversing

contactor?

Yes

Is

there voltage

to terminals T1,

T2 and T3 of

the reversing

contactor?

Yes

Is there voltage

across L1, L2 and

L3 of the motor?

Yes

Does the

motor

turn?

No

Correct wiring

No

between relay

No

Correct wiring

No

between motor

and reversing

Replace motor.

and supply

voltage.

Replace

reversing

relay.

Continue here from

previous page for

Reverse Rotation: Is

there voltage to H2-4

of micro control?

Yes

70422101 45

No

Make sure unit

is in the

reverse portion

of rotation.

Replace micro

control.

Yes

Does the

cylinder

rotate?

Yes

No

Unit

operational.

Check drive

components

between motor

and cylinder.

TMB2328S-b

Section 4

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

• Disconnect electric power to the tumbler before servicing.

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

• Close steam valve to steam tumbler before servicing.

• Never start the tumbler with any guards/panels removed.

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

W002

WARNING

The air inlet shutters on the burner must be adjusted so sufficient primary air is metered into the system for proper combustion and maximum efficiency. Before adjusting the inlet shutter be sure that all lint is removed from lint compartment and lint screen.

W281

CAUTION

PROPER

AIRFLOW

AIR SHUTTER

ADJUSTING SCREWS

INSUFFICIENT

AIRFLOW

NO AIRFLOW

AIR SHUTTER

ADJUSTING SCREWS

AIR SHUTTER

ADJUSTING SCREWS

TMB1780S

Adjustments

28.Main Gas Burner Air Inlet Shutters (Gas Models)

Refer to Figure 1.

Air inlet shutter adjustments will vary from location to location and will depend on the vent system, number of units installed, make-up air and line gas pressure. Opening the shutter increases the amount of air supplied to the burner while closing the shutter decreases the air supply. Adjust air shutter as follows:

a. Unlock and remove the access door. Remove

guard on rear of unit.

b. Start the tumbler and check the flame pattern.

Correct air and gas mixture is indicated if the flame pattern is primarily blue, with small yellow tips, and bends to the left of the heater section. Too little air is indicated if the flame is yellow, lazy and smoky.

c. To adjust the air inlet shutter , loosen adjusting

screws.

d. Push or pull shutters in or out as necessary to

obtain desired flame intensity.

e. After shutter is adjusted, tighten locking

screw securely.

f. If the shutter is correctly adjusted, but the

flame pattern is stright up, insufficient air is flowing through the tumbler. A flame pattern that flares to the right and left indicates that no air is flowing through the tumbler. Check make-up air and exhaust vent.

46 70422101

Figure 1

29.Airflow Switch (Gas and Electric

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

• Disconnect electric power to the tumbler before servicing.

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

• Close steam valve to steam tumbler before servicing.

• Never start the tumbler with any guards/panels removed.

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

W002

WARNING

Models)

The airflow switch (located on the rear of tumbler), is set at the factory for proper operation. No adjustment necessary.

IMPORTANT: Airflow switch disc must remain closed during operation. If it opens and closes during the drying cycle, this indicates insufficient airflow through the tumbler. If switch remains open, or pops open and closed during the cycle, the heating system will shut off. The cylinder and fan will continue to operate even though the airflow switch is opened.

Adjustments

70422101 47

Adjustments

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

• Disconnect electric power to the tumbler before servicing.

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

• Close steam valve to steam tumbler before servicing.

• Never start the tumbler with any guards/panels removed.

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

W002

WARNING

T048IE1A

DOOR

STRIKE

DOOR

LATCH

ACORN

NUT

T048IE1A

30.Loading Door Strike

Refer to Figure 2.

The door strike must be adjusted so it has sufficient tension to hold loading door closed against the force of a tumbling load. The door strike is properly adjusted when 8-15 lbs. (17.633 kg) of pull is required to open door.

To adjust, open door, loosen acorn nut and turn door strike screw in or out as required. Retighten acorn nut.

31.Drive Belt Tension

Proper tension is when drive belt can be depressed 1/2 inch (12.7 mm) by applying light thumb pressure (approximately 5 pounds) at a point midway between sheave and motor pulley.

Reversing Belt Drive Models: Proper tension is when each cylinder belt can be depressed approximately 3/16 inch (4.77 mm) by applying light thumb pressure (approximately 5 pounds) at a point midway between the sheave and the idler.

Nonreversing Models: Refer to Figure 3.

a. Remove guard from rear of tumbler. b. Loosen idler housing capscrews holding idler

housing to the housing support.

c. Position housing assembly by turning

adjusting bolt until proper belt tension is reached, then retighten idler housing capscrews.

d. Replace guard on rear of tumbler.

Reversing Models: Refer to Figure 4.

a. Remove guard from rear of tumbler. b. To adjust cylinder belt tension, loosen idler

housing bolts holding idler housing assembly to the housing support.

c. Position housing assembly by turning

adjusting bolt until proper belt tension is reached, then retighten idler housing bolts.

NOTE: Adjust cylinder belt tension first, then adjust motor to idler belt tension. Refer to Figure 4.

d. Loosen the locking bolt. e. Loosen the adjusting nut and use the adjusting

screw to move the motor up or down.

Figure 2

f. Once proper belt tension is reached, retighten

the adjusting nut and locking bolt.

g. Replace the guard on rear of tumbler.

48 70422101

Adjustments

NONREVERSING

Trunnion Housing

Adjusting Bolts

Adjusting

Bolt

Drive V-Belt

Guide Rails

Idler Housing

Assembly

Trunnion

Housing Bolts

Idler Housing

Bolts (2)

Poly V-Belt

(Self-adjusting)

TMB2244N

70422101 49

TMB2244N

Figure 3

Adjustments

REVERSING

Locking Bolt

Adjusting Nut

Adjusting Screw

Idler Housing

Assembly

Cylinder Belts

Drive Belt

Idler Housing

Bolts (2)

Adjusting Bolt

(Not Shown)

50 70422101

TMB2283N

Figure 4

Adjustments

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

• Disconnect electric power to the tumbler before servicing.

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

• Close steam valve to steam tumbler before servicing.

• Never start the tumbler with any guards/panels removed.

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

W002

WARNING

T218SE3C

Front

Panel Flange

(Top Shown)

Front Panel

Fore / Aft

Clearance

9/32" ± 1/32"

Cylinder Rim /

Front Panel

Flange

Clearance

Inside Front Of Cylinder

Cylinder

Rim

1/2 - 3/4 Inch

(12.7 - 19.05 mm)

T218SE3C

32.Cylinder Clearance

The clearance between the cylinder rim and front panel must be adjusted so the cylinder is centered within the front panel opening when the cylinder is fully loaded and is turning. However, the adjustment should be made when the cylinder is empty.

a. Open loading door and check the g ap between

the center of the front panel top flange and the cylinder rim. Proper adjustment is when the gap is 1/2 - 3/4 inch (12.7 - 19.05 mm). Refer

to Figure 5. b. Remove drive guard. c. Loosen the four trunnion housing bolts. Refer

to Figure 3. d. Loosen the locknuts on the trunnion housing

adjusting bolts. Refer to Figure 3.

e. T urn the adjusting bolts in or out as necessary

to obtain proper clearance between cylinder rim and front panel.

NOTE: Turning the adjusting bolts clockwise will raise the cylinder and turning them counterclockwise will lower the cylinder. Turn both bolts evenly to adjust top and bottom clearance. Turn one or the other adjusting bolt in or out to adjust side clearance.

f. After the cylinder is properly adjusted, tighten

the adjusting bolt locknuts and the four trunnion housing bolts.

g. Install the belt guard removed in Step b.

NOTE: If adjusting the trunnion housing fails to correct the clearance, the problem is probably due to a worn trunnion shaft or bearings.

70422101 51

Figure 5

Section 5

TMB2304S

Micro Display Control (MDC)

Troubleshooting

33.Coins Ignored When Entered

Start Coin drop diagnostic tests.

(Refer to programming manual,

“ProductionTest Cycle” section.)

Gas and electric heat. Single and three phase power supply.

Does the display on the

electronic control

increment properly?

NO

Is connector H5 on the control firmly seated in

its receptacle?

YES

Is the 3 pin connector

between coin drop and

control connected

correctly?

YES

NO

Exit diagnostic

testing and reset

control. (Prompting

for vend price)

Reconnect and run

diagnostic test

again.

Reconnect and run

diagnostic test

again.

Are wires exiting coin

drop optical sensor cracked or broken?

NO

Replace coin drop.

If problem still exists

then replace the

electronic control.

52 70422101

YES

Replace coin drop.

TMB2304S

34.Control Has No Display

Is there 24 VAC across

H1-1 & H1-3 on

the control?

Replace Electronic

Control.

Is there power supplied

to the unit?

NO

Is there 120 VAC at input

of primary fuses?

Is there 120 VAC at

output side of the

primary fuses?

Is there 120

VAC across

terminals 1 & 2 of

transformer primary?

Plug unit in and

start cycle.

Correct wiring

between primary

fuse and power

supply.

Replace primary

fuse(s).

Correct wiring

between primary

fuse and

transformer.

Is there 24

V

AC across

terminals 1 &

4 of transformer

secondary?

Replace

transformer.

Is there 24 VAC at

the input of the

secondary fuse?

Is there 24 VAC at

output side of

secondary fuse?

Correct wiring

between secondary

fuse and

transformer.

Replace se

condary

fuse.

Correct wiring

between control and

secondary fuse.

YES

NO

YES

NO

YES

(8)

(1)

(2)

(3)

(4)

(5)

(6)

(7)

TMB249S

Gas, steam and electric heat. Single and three phase power supply.

TMB249S

Micro Display Control (MDC) Troubleshooting

70422101 53

Micro Display Control (MDC) Troubleshooting

4

2

3

5

6

7

8

1

TMB2329S

Control Has No Display

54 70422101

TMB2329S

35.Door Open Indicator

TMB2348S

Is there voltage at

H2-1 on the Electronic

control?

Replace Control.

Is there power supplied

to the unit?

NO

Plug unit in and

start cycle.

Is there 24

VAC at

the input of the

secondary fuse?

Is there 24 V

AC at

output side of

secondary fuse?

Correct wiring

between secondary

fuse and

transformer.

Replace secondary

fuse.

NO

YES

Is there 24

VAC at

N.O. of door

switch?

Is there 24 V

AC at

N.O. of lint drawer

switch?

Check for proper

operation replace if

necessar

y

.

Correct wiring between N.O. on lint drawer and COM on

door switch.

Correct wiring

between N.O. and

output of secondary

fuse.

Check for pro

per

function of door

switch replace if

necessar

y

.

Correct wiring

between H2-1 of

electronic control

and COM of lint

drawer switch.

YES

NO

Reference voltage

checks to transformer

neutral.

(1)

(2)

(3)

(4)

(5)

(6)

(7)

Is there 24 V

AC at

COM of lint drawer

switch with lint

panel closed?

With door closed is

there 24 V

AC to

COM of door

switch?

Gas, steam and electric heat. Single and three phase power supply.

TMB2348S

Micro Display Control (MDC) Troubleshooting

70422101 55

Micro Display Control (MDC) Troubleshooting

TMB2329S

2

3

4

1

5

7

6

TMB2329S

Door Open Indicator

56 70422101

36.Motor Will Not Start/Run

A

a

TMB2306S-a

Micro Display Control (MDC) Troubleshooting

Note: Test conducted with vend

(1)

price satisfied and start button

pressed.

NO

Replace

control.

Correct wiring to coil

NO

Refer to Door Open flow chart.

of motor relay.

Correct wiring

between terminal 5

and power supply.

Is there 24 VAC across

H2-1 and H2-6 on

the electronic control ?

YES

(2)

Is there 24 VAC

across H2-4 and H2-6

on the electronic control?

YES

(3)

Is there 24 VAC

across the coil of

the motor control

relay?

Three phase.

lso see Note on

next page.

Is there supply voltage

YES

Is the unit equipped with single phase or three phase power?

Single phase

(4)

at terminal 5 of the

motor control relay?

Gas, electric and steam heat. Single and three phase power supply.

Replace MDC

Control.

Is there supply voltage across terminals 1 & 4

Does the motor

Is unit equipped with single phase or three phase power supply?

Is there supply voltage

between L2 & L3 of

motor control relay?

of the motor?

YES

run?

YES

(6)

Three phase.

see Note on next

(12)

page.

NO

Single phase

Also

NO

Correct wiring

between motor

and motor control

relay.

Replace motor.

Correct wiring

between L2, L3 and

supply.

YES

(5)

Is there supply voltage

at terminal 8 of motor

control relay?

YES

(10)

Is there supply voltage

to L1 and L2 of the

motor control relay?

YES

(11)

Is there supply voltage

across L1 &

and L2 &

NO

T2?

T1

70422101 57

NO

YES

Replace motor

control relay.

Correct wiring

between L1, L2 and

power supply.

Replace motor

control relay.

Is there voltage across

terminals L2 &

Is there supply voltage

at terminal 6 of motor

Is there supply voltage

at terminal 9 of motor

L3 & T3?

NO

control relay?

YES

control relay?

YES

T2 and

(7)

(8)

YES

NO

Replace motor

control relay.

Correct wiring

between terminal 6

of motor control

relay and supply.

Replace motor

control relay.

TMB2306S-

Micro Display Control (MDC) Troubleshooting

Is there supply voltage

across terminals 1 & 4

of motor?

Does the

motor run?

Correct wiring

between

motor and motor

control relay.

Replace

motor.

NO

YES

Motor is

operational.

Note: For high voltage three phase supply

(200 volts or higher), the motor is supplied

by L1, L2, L3 through the motor contactor terminals T1,

T2, T3. Make the appropriate adjustments when

doing voltage checks.

(9)

TMB2306S-b

36.Motor Will Not Start/Run (continued)

Please see following page for wiring diagram information.

58 70422101

Micro Display Control (MDC) Troubleshooting

4

2

3

5

6

1

TMB2329S

Motor Will Not Start/Run

70422101 59

TMB2329S

Micro Display Control (MDC) Troubleshooting

TMB2307S-a

37.Unit Will Not Heat – Gas

Note: Tests are conducted with u

and calling for heat.

All voltage checks are referenced to

transformer neutral.

(1)

Is there 24 VAC at

FS-2 of MDC control?

YES

(2)

Is there 24 VAC at FS-1 of MDC

control?

YES

Is there 24 VAC at COM

of airflow switch?

NO

(3)

YES

nit running

Replace

thermistor.

NO

Is the

thermistor

operational?

NO

Correct wiring

between FS-2 and

COM of lint drawer.

Replace MDC

NO

YES

Correct wiring

between COM of

airflow switch and

FS-1 of MDC

control.

(7)

Is there 24 VAC at

terminal 3 of fan

motor centrifugal

switch?

YES

(8)

Is there 24 VAC at

terminal 5 of fan motor

centrifugal switch?

YES

(9)

Is there 24 VAC to the

input side of the

cabinet limit?

YES

NO

Correct wiring

between terminal 3

of fan motor centrifugal switch and terminal 4 of

motor control relay.

Replace fan motor.

Correct wiring

between cabinet

limit and terminal 5

of fan motor

centrifugal switch.

Is there

24 VAC at

N.C. terminal

of airflow

switch?

YES

Is there

24 VAC at

terminal 13 of

motor control

relay?

YES

Is there

24 VAC at

terminal 14 of

motor control

relay?

YES

(4)

NO

(5)

NO

(6)

NO

Check for proper

function of airflow

switch and replace if

Correct wiring

between terminal 7

on motor control

relay and N.C.

terminal on airflow

Replace motor

necessary

switch.

control relay.

.

24 VAC at output side of

Is there 24 V input side of the stove

(10)

Is there

cabinet limit?

YES

AC to the

limit?

YES

(11)

NO

Replace cabinet

limit.

Correct wiring

between stove limit

and cabinet limit.

TMB2307S-a

60 70422101

37.Unit Will Not Heat – Gas (continued)

TMB2307S-b

(12)

Micro Display Control (MDC) Troubleshooting

Is there

24 VAC at output side of

the stove limit?

YES

(13)

Is there 24 VAC to

terminal 2 of

the Ignition Control

Module (ICM)?

YES

(14)

Is there 24 VAC at terminal 1 of ICM

board?

YES

(15)

Is there 24 V

AC across

the coils of the gas

valve?

NO

between terminal 2

Note: Make sure unit is

not in a lock out

Replace ICM board.

Replace the stove

limit.

Correct wiring

of ICM and stove

limit.

condition.

Correct wiring

between gas valve

and ICM board.

Is there a flame?

NO

YES

Unit operational.

YES

Is there gas flow

through the gas valve?

YES

Does the igniter spark?

YES

NO

Replace gas valve

coils or complete

gas valve.

Replace high

voltage ignition

cable, igniter or

ICM board.

Please see following page for wiring diagram information.

TMB2307S-b

70422101 61

Micro Display Control (MDC) Troubleshooting

TMB2329S

4

3

5

6

7

8

1

9

11

10

2

14

13

15

12

TMB2329S

Unit Will Not Heat – Gas

62 70422101

38.Unit Will Not Heat – Steam

Note: Tests are conducted with unit running

and calling for heat.

All voltage checks are referenced to

transformer neutral.

Correct wiring

between FS-2 and

COM of lint drawer.

Is there 24 VAC on

FS-2 of MDC control?

Is there 24 VAC

on FS-1 of MDC

control?

Correct wiring

between COM of

airflow switch and

FS-1 of MDC

control.

Is there 24 VAC on COM

of airflow switch?

Check for proper

function of airflow

switch and replace if

necessary

.

Is there

24 VAC at

N.C. terminal

of airflow

switch?

Correct wiring

between terminal 7

on motor control

relay and N.C.

terminal on airflow

switch.

Is there

24 VAC on

terminal 13 of

motor control

relay?

Replace motor

control relay.

Correct wiring

between terminal 3

of fan motor

centrifugal switch

and terminal 4 of

motor control relay.

Is there 24 VAC on

terminal 3 of fan motor centrifugal

switch?

Replace fan motor.

Is there

24 VAC at

terminal 5 of fan

motor centrifugal

switch?

Correct wiring

between cabinet

limit and terminal 5

of fan motor

centrifugal switch.

Is there 24 VAC to the

input side of the

cabinet limit?

Replace cabinet

limit.

Is there

24 VAC to the output

side of the cabinet

limit?

NO

YES

Is the

thermistor

operational?

Replace MDC

control.

Replace

thermistor.

YES

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

(1)

(2)

(3)

(4)

(5)

(6)

(7)

(8)

(9)

(10)

TMB2309S-a

Is there

24 VAC on

terminal 14 of

motor control

relay?

TMB2309S-a

Micro Display Control (MDC) Troubleshooting

70422101 63

Micro Display Control (MDC) Troubleshooting

Replace steam

valve.

Unit operational.

NO

YES

NO

YES

(11)

TMB2309S-b

Is there 24 VAC across

the coil of the steam

valve?

Correct wiring between steam valve and stove

limit.

Does the steam

valve open allowing

steam to flow?

TMB2309S-b

38.Unit Will Not Heat – Steam (continued)

Please see following page for wiring diagram information.

64 70422101

Micro Display Control (MDC) Troubleshooting

TMB2329S

4

10

3

5

7

8

9

6

2

1

11

TMB2329S

Unit Will Not Heat – Steam

70422101 65

Micro Display Control (MDC) Troubleshooting

TMB2311S-a

39.Unit Will Not Heat – Electric

Note: Tests are conducted with u

and calling for heat.

All voltage checks are referenced to

transformer neutral.

(1)

Is there 24 VAC at

FS-2 of MDC control?

YES

(2)

Is there 24 VAC

on FS-1 of

MDC control?

YES

Is there 24 VAC at COM

of airflow switch?

NO

(3)

nit running

Replace

thermistor.

NO

Is the

thermistor

operational?

NO

Correct wiring

between FS-2 and

COM of lint panel

switch.

Replace MDC

control.

NO

YES

Correct wiring

between COM of

airflow switch and

FS-1 of MDC

control.

(7)

Is there 24 VAC at

terminal 3 of fan

motor centrifugal

switch?

YES

(8)

Is there

24 VAC at

terminal 5 of

fan motor centrifugal

switch?

YES

(9)

Is there 24 VAC to the

input side of the

cabinet limit?

NO

Correct wiring

between terminal 3

of fan motor

centrifugal switch

and terminal 13 of

motor control relay.

Replace fan motor.

Correct wiring

between cabinet

limit and terminal 5

of fan motor

centrifugal switch.

YES

(4)

Is there

24 VAC at

N.C. terminal

of airflow

switch?

YES

(5)

Is there 24 V

terminal 13 of motor

AC at

control relay?

YES

Is there

24 VAC at terminal 14 of motor control

relay?

YES

(6)

NO

Check for proper

function of airflow

switch and replace if

necessary.

Correct wiring

between terminal 7

on motor control

relay and N.C.

terminal on airflow

switch.

Replace motor

control relay.

YES

(10)

Is there 24

VAC at output side of

cabinet limit?

YES

(11)

Is there 24 V input side of the stove

AC to the

limit?

YES

NO

Replace cabinet

limit.

Correct wiring

between stove limit

and cabinet limit.

TMB2311S-a

66 70422101

39.Unit Will Not Heat – Electric (continued)

Replace the stove

limit.

Is there

24 VAC at output

side of the stove

limit?

Correct wiring

between heater

cotactor and stove

limit.

Is there 24 VAC across

the coil(s) of the heater

contactor(s)?

YES

NO

YES

(12)

(13)

Is there supply voltage to the L1, L2 and L3

terminals of HC1?

Correct wiring

between HC1 and

Line voltage.

Do all elements

produce heat (glow a

slight orange color)?

Check elements for

shorts or opens.

Check wires

between contactors

and elements.

Is there supply voltage

across T1 & T2, T2 & T3

and T3 &

T1?

Check for

proper operation of

contactors, replace

them if necessar

y.

Is there supply voltage

to the L1, L2 and L3

terminals of HC2?

YES

NO

Correct wiring

between HC2 and

Line voltage.

(14)

(15)

YES

NO

(16)(17)(18)

NO

YES

NO

YES

Unit is operational

Note: Please make

the appropriate adjustments if your unit is single phase.

TMB2311S-b

Micro Display Control (MDC) Troubleshooting

Please see following page for wiring diagram information.

70422101 67

Micro Display Control (MDC) Troubleshooting

TMB2330S

4

3

5

7

8

1

10

2

9

6

11

12

13

15

14

18

16

17

Unit Will Not Heat – Electric

68 70422101

Micro Display Control (MDC) Troubleshooting

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

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

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

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

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

W001R1

WARNING

40.Error Codes

OP - Indicates physical “open” in the thermistor circuit. Possible causes are: 1) thermistor, 2) wiring between control and thermistor, 3) control. SH - Indicates a “short” in the thermistor circuit. Possible causes are: 1) shorted thermistor, 2) a short in the wiring between control and thermistor, 3) control.

Card Reader Machines: (In addition to the above errors) EC:19 - Indicates 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 manual provided by the manufacturer.

Display Definition Corrective Action

OP

Indicates an open circuit in the thermistor.

 Check thermistor. Replace if inoperative.  Check wiring between control and

thermistor. Refer to wiring diagram for proper wiring.

 Check control. Replace if inoperative.

SH

Indicates a short circuit in the thermistor.

 Check thermistor. Replace if inoperative.  Check wiring between control and

thermistor. Refer to wiring diagram for proper wiring.

 Check control. Replace if inoperative.

EC:19

*Card Reader

models only

Indicates no communication between control and card reader.

 Check card reader. Replace if inoperative.  Check wire harness connecting card reader

and control. Replace if inoperative.

 Check control. Replace if inoperative.

70422101 69

Section 6

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

• Disconnect electric power to the tumbler before servicing.

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

• Close steam valve to steam tumbler before servicing.

• Never start the tumbler with any guards/panels removed.

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

W002

WARNING

NetMaster Troubleshooting –

KT075 Models Only

70 70422101

41.No Infrared Communication

Check the following:

- Is IR communication disabled by manual programming?

- Is the IR window on the control covered or blocked?

- If needed, change control board.

Check the following:

- ls the battery low on the Micro-Wand?

- Is the IR window covered or blocked on the control?

- If needed, replace the electronic control.

- Is the IR cap properly attached to the Micro-Wand?

Communication

sequence checks

out.

Attempt to

communicate with

the electronic

control from the

Micro-Wand.

Aim Micro-Wand

closer and try again.

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

-C-

E:OF

No

Yes

Gas and electric heat.

Single and three phase

power supply.

TMB1793S

NetMaster Troubleshooting – KT075 Models Only

70422101 71

NetMaster Troubleshooting – KT075 Models Only

TMB1794S

42.Coins Ignored When Entered

Start coin drop

diagnostic tests.

Gas and electric heat.

Single and three phase

power voltage.

NOTE: Refer to Programming Manual

for test procedures.

Does the display on the

electronic control

increment properly?

No

Is connector H5 on the

control firmly seated in

its receptacle?

Yes

Is the 3 pin connector

between coin drop and

control connected

correctly?

Yes

No

Exit diagnostic

testing and reset

control. (Prompting

for vend price)

Reconnect and run

diagnostic test

again.

Reconnect and run

diagnostic test

again.

Are wires exiting coin

drop optical sensor cracked or broken?

Replace coin drop.

If problem still exists,

then replace the

electronic control.

72 70422101

Yes

Replace coin drop.

No

TMB1794S

43.No Display

Is there 24 volts AC

across terminals H1-1

and H1-3 on control?

(1)

Yes

No

Replace the

electronic control.

Is the secondary fuse

good?

Replace the fuse.

No

Is there 24 volts AC

across terminals 1 and

4 on the secondary side of

the transformer?

Yes

No

Correct the wiring

between the

transformer

secondary and the

electronic control.

Is line voltage present

across terminals 1 and

2 on the primary side of

the transformer?

Yes

Replace the transformer.

No

Is the primary fuse

good?

Yes

No

Replace the primary

fuse.

Correct wiring from

terminal block to

transformer. Verify

that the unit is

connected to power

and the power is on.

(2)

(3)

(4)

(5)

TMB1795S

NetMaster Troubleshooting – KT075 Models Only

70422101 73

NetMaster Troubleshooting – KT075 Models Only

TMB2331S

5

1

4

3

2

TMB2331S

No Display

74 70422101

44.“Door Open” Indicator

“Door Open”

Indicator

Is there

24 volts across

terminals H2-1 and

H2-6 on the

control?

Is

there 24 volts

to the normally open

contact on the

lint drawer

switch?

No

Replace

control.

Yes

Correct the wiring

between the N.O.

terminal on the lint

drawer switch to

terminal H2-1 on

the control.

Yes

Is

there 24 volts

to the output side of

the secondary

fuse?

Yes

Correct the wiring

between the fuse

and the common

terminal of the

door switch.

Is

there 24 volts

to the input side

of the secondary

fuse?

Yes

Check fuse.

Replace if

necessary.

TMB2332S

No

Yes

Correct wiring

between the

transformer and

the fuse.

Is there

24 volts across

terminals 2 and 3

of the transformer

secondary?

No

Is there 24 volts

to the common

terminal of the lint

drawer switch?

Yes

Replace the lint

drawer switch.

Is

there 24 volts

at the normally open

terminal of the door

switch with the door

closed?

Yes

Correct the wiring

between the door

switch and the lint

drawer switch.

No

Note: All voltages are to be measured to transformer common, unless otherwise stated.

(1)

Is

there 24 volts

to the common

terminal of the door

switch?

Check door switch

for proper operation.

Replace if

necessary.

(2)

(3)

(4)

(5)

Is line voltage

present across

terminals 1 and 2 on

the primary side of the

transformer?

Replace

transformer.

Is the

primary fuse

good?

Replace the

primary fuse.

Correct wiring from terminal

block to transformer. Verify

that unit is connected to

power and the power is on.

No

Yes

No

Yes

No

Yes

(6)

(7)

(8)

(9)

(10)

TMB2332S

NetMaster Troubleshooting – KT075 Models Only

70422101 75

NetMaster Troubleshooting – KT075 Models Only

TMB2331S

9

10

5

6

7

1

3

4

8

2

TMB2331S

“Door Open” Indicator

76 70422101

45.No Start/Run

Check motor for

proper operation.

Replace if

necessary.

Is there line voltage

across terminals 1 and

4 of the motor?

Correct wiring

between the motor

relay and the motor.

Is there voltage on the

output of the motor

relay?*

Correct wiring

supplying voltage to

the contacts of the

motor relay.

Is there voltage to the

input side of the motor

relay?*

Check relay for

proper operation.

Replace if

necessary.

Is there 24 Volts across

the coil of the relay?

Correct wiring

between control and

motor relay coil.

Is there 24 volts at

terminal H2-4 on the

control? Measured to

transformer neutral.

Press the start

button. If machine

does not start,

replace control.

Is there 24 volts to

terminal H2-1 on the

control?

Correct wiring to the

control. Refer to

“ ‘Door Open’

Indicator.”

(1)

(2)

(3)

(4)

(5)

(6)

Yes

No

Yes

TMB1799S

*Note: For steps 2 and 3. For 208/240 1 phase, both lines to the motor

are controlled by contacts. Please check second set of contacts.

For 3 phase units, the three legs supplied to the moter will be

controlled by N.O. contacts. Please check all three legs.

TMB1799S

NetMaster Troubleshooting – KT075 Models Only

70422101 77

NetMaster Troubleshooting – KT075 Models Only

TMB2331S

2

3

6

5

4

1

TMB2331S

No Start/Run

78 70422101

46.Unit Will Not Heat – Gas

Note: Tests are conducted with unit running

and calling for heat.

All voltage checks are referenced to

transformer neutral.

Correct wiring

between FS-2 and

N.O. of lint panel

switch.

Is there voltage at

FS-2 of control?

Is there voltage

at FS-1 of

control?

Correct wiring

between terminal 13

and N.O. of airflow

switch.

Is there voltage at

terminal 13 of the motor

control relay?

Check cabinet limit for proper

operation. Replace

if necessary.

Is there voltage to the

output of the cabinet

limit?

Correct wiring

between stove limit

and normally open

terminal of the airflow switch.

Is there voltage to the

input of the stove limit?

Check operation of

stove limit. Replace

if necessary.

Is there voltage to the

output side of the stove

limit?

No

Yes

Is the

thermistor

operational?

Replace

control.

Replace

thermistor.

Yes

NoNo

Yes

No

Yes

Replace motor

control relay.

Is there voltage at

terminal 14 of the motor

control relay?

No

Yes

No

Yes

No

Yes

Continued on next

page.

(1)

(2)

(5)

(6)

(10)

(11)

(12)

TMB2333S-a

Correct wiring

between airflow

switch and cabinet

limit.

Is there voltage to the

common of the airflow

switch?

Check for proper

operation of airflow

switch. Replace if

necessary.

Is there voltage to the

N.O. terminal of the

airflow switch?

Yes

No

Yes

(3)

(4)

Correct wiring

between motor

terminal 3 and

motor relay.

Is there voltage to

terminal 3 of the fan

motor centrifugal

switch?

Check motor for

proper operation.

Replace if

necessary.

Is there voltage at

terminal 5 of the fan

motor centrifugal

switch?

Correct wiring

between cabinet

limit and terminal 5

of fan motor.

Is there voltage to the

input of the cabinet

limit?

Yes

No

Yes

No

(7)

(8)

(9)

TMB2333S-a

NetMaster Troubleshooting – KT075 Models Only

70422101 79

NetMaster Troubleshooting – KT075 Models Only

Correct wiring

between terminal 2

of ICM and stove

limit.

Is there voltage to

terminal 2 of the

Ignition Control Module

(ICM)?

Replace ICM board.

Is there voltage at

terminal 1 of ICM

board?

Correct wiring

between gas valve

and ICM board.

Is there voltage across

the coils of the gas

valve?

Replace gas valve

coils or complete

gas valve.

Is there gas flow

through the gas valve?

Replace high voltage ignition cable or igniter.

Does the igniter spark?

Unit operational.Is there a flame?

No

Yes

No

Yes

No

Yes

No

Yes

No

Yes

No

(13)

(14)

(15)

Note: Make sure unit is

not in a lockout

condition.

TMB2333S-b

Continued from

previous page.

TMB2333S-b

46.Unit Will Not Heat – Gas (continued)

80 70422101

Please see following page for wiring diagram information.

NetMaster Troubleshooting – KT075 Models Only

TMB2331S

5

6

1

3

4

8

2

7

10

9

12

11

13

14

15

TMB2331S

Unit Will Not Heat – Gas

70422101 81

NetMaster Troubleshooting – KT075 Models Only

TMB2312S

47.Unit Will Not Heat – Steam

Note: Tests are conducted with unit running

and calling for heat.

All voltage checks are referenced to

transformer neutral.

(1)

Is there voltage at

FS-2 of control?

Yes

Replace

(2)

Is there voltage

at FS-1 of

control?

Yes

Is there voltage to the common of the airflow

switch?

Is there voltage to the

N.O. terminal of the

airflow switch?

Is there voltage at

terminal 13 of the motor

control relay?

Yes

thermistor.

(3)

(4)

(5)

No

Is the

thermistor

operational?

No

Correct wiring

between FS-2 and

N.O. of lint panel

switch.

Replace

control.

NoNo

Yes

Correct wiring

between airflow

switch and cabinet

limit.

Check for proper

operation of airflow

switch. Replace if

necessary.

Correct wiring

between terminal 13

and N.O. of airflow

switch.

(7)

Is there voltage to

terminal 3 of the fan

motor centrifugal

switch?

Yes

(8)

Is there voltage at

terminal 5 of the fan

motor centrifugal

switch?

Yes

(9)

Is there voltage to the

input of the cabinet

limit?

Yes

(10)

Is there voltage to the

output of the cabinet

limit?

Yes

(11)

Is

there voltage

across the coil of

the steam

valve?

Yes

No

Correct wiring

between motor

terminal 3 and

motor relay.

Check motor for

proper operation.

Replace if

necessary.

Correct wiring

between cabinet

limit and terminal 5

of fan motor.

Check cabinet limit for proper

operation. Replace

if necessary.

Correct wiring

between steam valve

and cabinet limit

thermostat.

Yes

(6)

Is there voltage at

terminal 14 of the motor

control relay?

Yes

82 70422101

No

Replace motor

control relay.

Does steam valve open?

Yes

Verify that the correct

steam is supplied to

unit. Verify that steam

valve and other items

were installed according

to the Installation Manual.

No

Check steam valve

for proper operation.

Replace if necessary.

TMB2312S

NetMaster Troubleshooting – KT075 Models Only

TMB2331S

5

6

1

3

4

8

2

7

10

9

11

TMB2331S

Unit Will Not Heat – Steam

70422101 83

NetMaster Troubleshooting – KT075 Models Only

TMB2335S-a

48.Unit Will Not Heat – Electric

Note: Tests are conducted with unit running

and calling for heat.

All voltage checks are referenced to

transformer neutral.

(1)

Is there voltage at

FS-2 of control?

Yes

Replace

(2)

Is there voltage

at FS-1 of

control?

Yes

Is there voltage to the common of the airflow

switch?

Yes

Is there voltage to the

N.O. terminal of the

airflow switch?

Yes

Is there voltage at

terminal 13 of the motor

control relay?

thermistor.

(3)

(4)

(5)

No

Is the

thermistor

operational?

No

Correct wiring

between FS-2 and

N.O. of lint panel

switch.

Replace

control.

NoNo

Yes

Correct wiring

between airflow

switch and cabinet

limit.

Check for proper

operation of airflow

switch. Replace if

necessary.

Correct wiring

between terminal 13

and N.O. of airflow

switch.

(7)

Is

there voltage to

terminal 3 of the fan

motor?

Yes

(8)

Is

there voltage at

terminal 5 of the fan

motor?

Yes

(9)

Is there voltage to the

input of the cabinet

limit?

Yes

(10)

Is there voltage to the

output of the cabinet

limit?

Yes

(11)

Is there voltage to the

input of the stove limit?

Yes

(12)

No

Correct wiring between motor terminal 3 and

motor relay.

Check motor for

proper operation.

Replace if

necessary.

Correct wiring

between cabinet

limit and terminal 5

of fan motor.

Check cabinet limit for proper

operation. Replace

if necessary.

Correct wiring

between stove limit and normally open

terminal of the airflow switch.

Yes

(6)

Is there voltage at

terminal 14 of the motor

control relay?

Yes

84 70422101

No

Replace motor

control relay.

Is there voltage to the

output side of the stove

limit?

Yes

Continued on next

page.

No

Check operation of stove limit. Replace

if necessary.

TMB2335S-a

NetMaster Troubleshooting – KT075 Models Only

TMB2335S-b

48.Unit Will Not Heat – Electric (continued)

Continued from previous page.

(13)

Is there voltage across the coil(s) of the heater

contactor(s)?

Yes

(14)

Is there voltage to the

input terminals of HC1

and/or HC2?

Yes

(15)

Is there voltage to the

output side of

HC1/HC2 contacts?

Yes

Do all elements

produce heat (glow a

slight orange color)?

No

Correct wiring

between heater

contactor and

stove limit.

Correct wiring

between HC1, HC2

and line voltage.

Check for proper

operation of

contactors. Replace

if necessary.

Check elements for

shorts or opens.

Check wires

between contactors

and elements.

Unit is operational.

Please see following page for wiring diagram information.

70422101 85

Yes

TMB2335S-b

NetMaster Troubleshooting – KT075 Models Only

10

8

1

5

3

7

4

6

9

11

2

15

14

12

13

TMB2334S

Unit Will Not Heat – Electric

86 70422101

TMB2334S

49.CE Models No Display

Replace the control.

Is there voltage across

H1-1 and H1-3 on the

control?

Correct wiring

between fuse F4

and control.

Is there voltage coming

out of fuse F4?

Replace fuse.Is fuse F4 good?

Correct wiring

between

transformer

and fuse.

Check transformer

for operation.

Replace if

necessary.

Is there voltage across

terminals 1 and 4 of

the transformer?

Is line voltage supplied

to the transformer

primary?

Is there line voltage on

the output side of F1?

Replace fuse F1.

Correct wiring between fuse F1 and transformer.

Is there line voltage on

the input side of F1?

Verify that unit is

plugged in. Correct

wiring between

supply terminals

and fuse F1.

(1)

(2)

(3)

(4)

(5)

(6)

Yes

No

Yes

No

Yes

(2)

Yes

No

Yes

No

Yes

No

Yes

TMB2313S

NetMaster Troubleshooting – KT075 Models Only

70422101 87

NetMaster Troubleshooting – KT075 Models Only

TMB2336S

2

6

4

1

5

3

TMB2336S

CE Models No Display

88 70422101

50.CE Models “Door Open” Indicator

TMB2314S

Note: All voltage checks

are referenced to the

transformer neutral

unless otherwise

stated.

NetMaster Troubleshooting – KT075 Models Only

No (STEAM)

(1)

Is there voltage across

terminals H2-1 and

H2-6 on the control?

No (GAS)

(2)

Is there voltage to

normally closed

terminal of the airflow

switch?

No

(3)

Is there voltage to the

common terminal of

the airflow switch

(AFS)?

No

(4)

Yes

Replace control.

Correct wiring between H2-1

on control and

normally closed

on airflow switch.

Check AFS for

proper operation.

Replace if

necessary.

(6)

Is there voltage to

output side of door

switch (DS)?

No

(7)

Is there voltage to

common terminal

on DS?

No

(8)

Is there voltage to

output side of

fuse F3?

No

(9)

Yes

Correct wiring

between DS

and LDS.

Check DS for proper

operation. Replace

if necessary.

Correct wiring

between fuse F3

and DS.

Is there voltage to

output side of the lint

door switch

(LDS)?

No

(5)

Is there voltage to

common of LDS?

No

Yes

Correct wiring

between LDS

and AFS.

Check LDS for

proper operation.

Replace if

necessary.

Is there voltage to input

side of fuse F3?

No

(10)

Is there voltage across

transformer secondary?

No

Refer to steps 4, 5

and 6 of “CE Models

No Display.” Replace

transformer if

necessary.

Yes

Check fuse F3 for proper operation.

necessary.

Correct wiring

transformer

and fuse F3.

Replace if

between

TMB2314S

70422101 89

NetMaster Troubleshooting – KT075 Models Only

9

10

5

6

7

1

3

4

8

2

TMB2336S

CE Models “Door Open” Indicator

90 70422101

TMB2336S

51.CE Models No Start/Run

Check operation of

motor. Replace if

necessary.

Is there line voltage

across terminals 1 and

4 of the motor?

Correct wiring

between motor relay

and motor.

Is there voltage on the

output side of the

motor relay terminals?

Check to common

line.

Correct wiring from

line supply voltage

to motor relay.

Is there voltage on the

input side of the motor

relay terminals?

Check to common

line.

Check for proper

operation of relay.

Replace if

necessary.

Is there voltage across

the coil of the motor

relay?

Correct wiring

between control and

motor relay.

Is there voltage across

H2-4 and H2-6 of the

control?

Press start button. If machine doesn’t

start, replace

control.

Is there voltage to H2-1

on the control?

Correct wiring to

control. Refer to

“CE Models Door

Open Indicator.”

(1)

(2)

(3)

(4)

(5)

(6)

Yes

No

NoYes

Yes

Note: Voltage checks

referenced to

transformer

neutral unless

otherwise stated.

Note: Common can be

neutral or live wire

depending on voltage

and phase.

TMB2315S

NetMaster Troubleshooting – KT075 Models Only

70422101 91

NetMaster Troubleshooting – KT075 Models Only

TMB2336S

1

4

6

2

3

5

TMB2336S

CE Models No Start/Run

92 70422101

52.CE Models Will Not Heat – Gas

TMB2349S-a

NetMaster Troubleshooting – KT075 Models Only

Note: Test conducted

with unit running and

calling for heat.

Is there voltage on

FS-2 on the control?

Is there voltage at FS-1

of the control?

Is there voltage at

terminal 3 of the

Is there voltage at

terminal 5 of the

Is there voltage to the

input side of the

cabinet limit?

Note: Voltage checks referenced to neutral

(1)

Yes

(2)

Yes

(3)

motor?

Yes

(4)

motor?

Yes

(5)

unless otherwise

stated.

No

Check airflow

switch (AFS) for proper operation. If needed correct

wiring between

AFS and FS-2.

Verify if there is

voltage at AFS COM.

If no, backtrack

circuit to transformer

and correct as

necessary.

Check thermistor for

proper operation.

Replace if necessary. Replace control if thermistor

is good.

Correct wiring

between FS-1 on

the control and

terminal 3 of the

motor.

Check for proper

operation of the fan

motor switch.

Replace motor if

necessary.

Correct wiring

between cabinet

limit and fan motor

switch.

(7)

Is there voltage to input

side of the stove limit

(ST-1)?

Yes

(8)

Is there voltage to the

output side of the stove

limit?

Yes

(9)

Is there voltage to

terminal 4 on the

ignition control?

Yes

(10)

Is there voltage to

terminal 2 on the

ignition control?

Yes

(11)

Is there voltage on

terminal 6 of ignition

control module?

Yes

No

Correct wiring

between stove limit

and cabinet limit.

Check stove limit for

proper operation.

Replace if

necessary.

Correct wiring

between ignition

control and stove

limit.

Correct wiring

between ignition

control and lint

door switch (LDS).

Replace ignition

control.

Yes

(6)

Is there voltage to the

output side of the

cabinet limit (CT)?

Yes

70422101 93

No

Check cabinet limit

for proper operation.

Replace if

necessary.

(12)

Is there voltage across

the coil of the gas

valve?

Yes

Continued on next

page.

No

Correct wiring

between ignition

control and gas

valve.

TMB2349S-a

NetMaster Troubleshooting – KT075 Models Only

Unit operational.

Does the gas ignite

and stay on?

No

Yes

Check valve for proper

operation. Replace if

necessary. Verify that the

correct gas and gas pressures are supplied. Verify that the control is

not going into lockout.

TMB2349S-b

Continued from

52.CE Models Will Not Heat – Gas (continued)

94 70422101

Please see following page for wiring diagram information.

NetMaster Troubleshooting – KT075 Models Only

TMB2336S

9

10

5

6

7

1

3 4

8

2

11

12

TMB2336S

CE Models Will Not Heat – Gas

70422101 95

NetMaster Troubleshooting – KT075 Models Only

TMB2350S

53.CE Models Will Not Heat – Steam

CE Models Will Not

Heat – Steam

(1)

Is there

voltage on FS-2

on the control?

Yes

(2)

Is there voltage at FS-1 on the control?

Yes

(3)

Is there

voltage to

terminal 3 of the

motor?

Yes

Note: Voltage checks referenced to neutral unless otherwise stated.

No

Correct wiring

between

AFS and FS.

Check thermistor for

proper operation.

No

Replace if needed.

Replace control if

thermistor is okay.

No

Correct wiring

between the motor

and FS-1 on the

control.

(4)

Is there

voltage on

terminal 5 of the

motor?

Yes

(5)

Is there

voltage across

the coil of the

steam

solenoid?

Yes

(6)

Does the

steam valve

open?

Yes

Is heat

produced?

Yes

Check for proper

No

Replace motor

Correct wiring

No

between steam

No

Check for correct

No

steam supply.

Verify that steam

was connected

according to the

Installation Manual.

operation of

motor switch.

if necessary.

solenoid and

motor switch.

Replace

steam valve.

96 70422101

Unit

operational.

TMB2350S

NetMaster Troubleshooting – KT075 Models Only

TMB2336S

5

6

1

3 4

2

TMB2336S

CE Models Will Not Heat – Steam

70422101 97

NetMaster Troubleshooting – KT075 Models Only

Correct wiring

between FS-2 and

normally open

terminal on the

airflow switch (AFS).

Check AFS for

proper operation.

Replace if necessary.

If no voltage to

COM on AFS, correct

circuit prior to AFS.

Is there voltage to FS-2

on the control?

No

Yes

Check thermistor for

proper operation.

Replace if needed.

Check control.

Is there voltage on FS-1

of the control?

No

Yes

Correct wiring

between motor

terminal 3 and FS-1

on the control.

Is there voltage to

terminal 3 on the

motor?

No

Yes

Check for proper

operation of motor

switch. Replace if

necessary.

Is there voltage to

terminal 5 on the

motor?

No

Yes

Check for proper

operation of cabinet

limit. Replace if

necessary.

Is there voltage to the

output side of the

cabinet limit?

No

Yes

Correct wiring

between stove limit

and cabinet limit.

Is there voltage to the

input side of the stove

limit?

No

Yes

Check stove limit for

proper operation.

Replace if

necessary.

Is there voltage to

output side of the stove

limit?

No

Yes

Correct wiring

between heater

contactor coils and

stove limit.

Is there voltage across

the coils of the heater

contactor(s)?

No

Yes

Correct wiring

between heat

contactor(s) and

line voltage.

Is there line voltage to

the input side of the

heat contactor(s)?

No

Yes

(1)

(2)

(3)

(4)

(6)

(7)

(8)

(9)

(10)

Note: All voltage

checks are referenced

to neutral unless otherwise stated.

Continued on next

page.

Correct wiring

between cabinet

limit and motor

relay.

Is there voltage to the

input side of the

cabinet limit?

No

Yes

(5)

TMB2351s-a

TMB2351S-a

54.CE Models Will Not Heat – Electric

98 70422101