Primus D11 User manual

SERVICE MANUAL INDUSTRIAL DRYERS
PUBLICATION DATE: 12/03
70284701
D11, 13, 15

70284701 1
(continued)
Table of Contents
Section 1 – Safety Information
Locating an authorized service person.....................4
Section 2 – Introduction
Model identification.................................................5
Serial plate location..................................................6
Parts ordering information .......................................6
Wiring diagram ........................................................6
How a tumbler works...............................................7
Section 3 – Troubleshooting
1. Tumbler does not start.......................................9
2. Motor does not start...........................................9
3. Motor overload protector cycles repeatedly....10
4. Motor runs but cylinder does not turn.............10
5. Motor does not stop.........................................10
6. Burner does not ignite .....................................11
7. Burner ignites and goes out repeatedly ...........12
8. Burner does not shut off ..................................12
9. Clothes do not dry ...........................................13
10. Tumbler overheating .......................................13
11. Burners not burning properly ..........................14
12. Loading door opens during operation .............14
Section 4 – Grounding
Grounding Instructions ..........................................15
Section 5 – Service Procedures
13. Loading door assembly ...................................17
14. Door hinge.......................................................17
15. Door handle .....................................................17
16. Front panel.......................................................18
17. Door switch .....................................................19
18. European door switch......................................19
19. Control and coin drop assembly......................20
20. Lint panel.........................................................20
21. Lint screen .......................................................20
22. Lint panel switch .............................................21
23. Junction box/control box.................................21
24. Fuse and fuse holder assembly........................21
25. Cylinder rollers................................................22
26. Roller shaft ......................................................22
27. Cylinder...........................................................23
28. Cylinder belt....................................................24
29. Rear cylinder seal............................................25
30. Roller support and baffle assembly.................26
31. Airflow switch.................................................27
32. Stove high limit thermostat .............................27
33. Complete gas valve assembly .........................28
34. Burner tube assembly......................................30
35. Viewer window ...............................................30
36. Igniter assembly ..............................................30
37. Electronic ignition control...............................31
38. Thermistor .......................................................32
39. Cabinet thermostat...........................................32
40. Heater element.................................................33
41. Contactors........................................................34
42. Terminal block ................................................34
43. Motor relay......................................................34
44. Transformer.....................................................34
45. Ignition control................................................34
46. Steam coil........................................................35
47. Steam solenoid valve.......................................35
48. Drive belt.........................................................36
49. Fan...................................................................37
50. Fan motor assembly ........................................37
51. Drive motor .....................................................38
Section 6 – Adjustments
52. Leveling legs ...................................................39
53. Airflow switch adjustment ..............................39
54. Loading door switch........................................40
55. Loading door strike .........................................41
Section 7 – Electronic Control Troubleshooting
56. Theory of operation of instant
electronic ignition............................................43
57. Cannot perform infrared (IR)
communication................................................44
58. Coins ignored when entered............................45
59. Control display – Door open light “on” ..........46
60. Control display – “Door” error on 25, 30,
stacked 30 and 35 pound tumblers with 24 volt
EDC controls...................................................47
61. Control Display – No visible display – OPL
microprocessor models....................................48
62. Control display – No visible display
– Power on.......................................................49

270284701
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
63. Will not start – Electric – Manual timer..........50
64. Will not start – Electric – Rotary coin drop ....51
65. Will not start – Gas – Manual timer................53
66. Will not start – Gas – Rotary coin drop...........54
67. Will not start – Steam – Manual timer ............56
68. Will not start – Steam – Rotary coin drop.......57
69. Will not start/continue running
– EDC control..................................................59
70. Will not start/continue running – OPL
microprocessor control....................................62
71. Will not run – Electric – Manual timer ...........65
72. Will not run – Electric – Rotary coin drop......68
73. Will not run – Gas – Manual timer..................71
74. Will not run – Gas – Rotary coin drop ............73
75. Will not run – Steam – Manual timer..............75
76. Will not run – Steam – Rotary coin drop ........77
77. Will not heat – Electric – Manual timer..........79
78. Will not heat – Electric....................................81
79. Will not heat – Electric – Rotary coin drop
(With and without time delay board) ..............83
80. Will not heat – Electric/gas – OPL
microprocessor ................................................85
81. Will not heat – Gas – EDC models .................88
82. Will not heat – Gas – Manual timer ................90
83. Will not heat – Gas – Rotary coin drop...........92
84. Will not heat – Steam – EDC models..............94
85. Will not heat – Steam – Manual timer ............96
86. Will not heat – Steam
– OPL microprocessor.....................................98
87. Will not heat – Steam – Rotary coin drop.....101
Section 8 – Micro Display Control
Troubleshooting
88. Coins ignored when entered..........................103
89. Control has no display...................................104
90. Door open indicator.......................................106
91. Motor will not start/run .................................108
92. Unit will not heat (Gas).................................112
93. Unit will not heat (Gas).................................114
94. Unit will not heat (Steam) .............................115
95. Unit will not heat (Electric)...........................118
96. Error codes ....................................................121
Gas models...........................................................122
Schematic..........................................................122
Connection diagram..........................................123
Steam models.......................................................124
Schematic..........................................................124
Connection diagram..........................................125
Electric models.....................................................126
Schematic..........................................................126
Connection diagram..........................................127
Section 9 – NetMaster Troubleshooting
97. No IR communication ...................................129
98. Coins ignored when entered..........................130
99. Control has no display...................................131
100. Door open indicator.......................................134
101. Motor will not start/run .................................138
102. Unit will not heat (Gas).................................144
103. Unit will not heat (Steam) .............................148
104. Unit will not heat (Electric)...........................152

70284701 3
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
Section 1
Safety Information
Throughout this manual and on machine decals, you
will find precautionary statements (“CAUTION”,
“WARNING”, and “DANGER”) followed by specific
instructions. These precautions are intended for the
personal safety of the operator, user, servicer, and those
maintaining the machine.
Additional precautionary statements (“IMPORTANT”
and “NOTE”) are followed by specific instructions.
IMPORTANT: The word “IMPORTANT” is used
to inform the reader of specific procedures where
minor machine damage will occur if the procedure
is not followed.
NOTE: The word “NOTE” is used to communicate
installation, operation, maintenance or servicing
information that is important but not hazard
related.
In the interest of safety, some general precautions
relating to the operation of this machine follow.
DANGER indicates the presence of a
hazard that will cause severe personal
injury, death, or substantial property
damage if the danger is ignored.
DANGER
WARNING indicates the presence of a
hazard that can cause severe personal
injury, death, or substantial property
damage if the warning is ignored.
WARNING
CAUTION indicates the presence of a
hazard that will or can cause minor
personal injury or property damage if the
caution is ignored.
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

470284701
Section 1 Safety Information
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
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.
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.
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

70284701 5
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
Section 2
Introduction
Model identification
Information in this manual is applicable to these models:
Includes models with the following control suffixes (7th and 8th characters):
Gas Steam Electric
25 Pound
(220 Liter)
HA025L
HA025N
HT025L
HT025N
HU025L
HU025N
LT025L
LT025N
PA025L
PA025N
PT025L
PT025N
PU025L
PU025N
SA025L
SA025N
ST025L
ST025N
SU025L
SU025N
UA025L
UA025N
UT025L
UT025N
UU025L
UU025N
HT025S
HU025S
PT025S
PU025S
ST025S
SU025S
UT025S
UU025S
HT025E
HU025E
PT025E
PU025E
ST025E
SU025E
UT025E
UU025E
30 Pound
(270 Liter)
HA030L
HA030N
HT030L
HT030N
HU030L
HU030N
LT030L
LT030N
LU030L
LU030N
PA030L
PA030N
PT030L
PT030N
PU030L
PU030N
SA030L
SA030N
ST030L
ST030N
SU030L
SU030N
UA030L
UA030N
UT030L
UT030N
UU030L
UU030N
HT030S
HU030S
PT030S
PU030S
ST030S
SU030S
UT030S
UU030S
HT030E
HU030E
LU030E
PT030E
PU030E
ST030E
SU030E
UT030E
UU030E
35 Pound
(350 Liter)
AT035L
AT035N
HA035L
HA035N
HT035L
HT035N
HU035L
HU035N
LT035L
LT035N
LU035L
LU035N
PA035L
PA035N
PT035L
PT035N
PU035L
PU035N
SA035L
SA035N
ST035L
ST035N
SU035L
SU035N
UA035L
UA035N
UT035L
UT035N
UU035L
UU035N
AT035S
HT035S
HU035S
PT035S
PU035S
ST035S
SU035S
UT035S
UU035S
AT035E
HT035E
HU035E
LU035E
PT035E
PU035E
ST035E
SU035E
UT035E
UU035E
BC – basic electronic, coin EC – EDC electronic coin NY – NetMaster card ready
BL – basic electronic, central pay EX – EDC coin ready OM – OPL micro
BX – basic electronic, prep for coin EY – EDC card ready ZC – NetMaster coin network
BY – basic electronic, prep for card MT – manual timer ZR – NetMaster card network
CD – rotary coin drop NC – NetMaster coin ZX – NetMaster coin ready network
CX – prep for coin drop NR – NetMaster card ZY – NetMaster card ready network
CY – prep for card NX – NetMaster coin ready

670284701
Section 2 Introduction
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
Serial plate location
When calling or writing about your product, be sure to
mention model and serial numbers. Model and serial
numbers are located on serial plate as shown.
Parts ordering
information
If replacement parts are required, contact the source
from whom you purchased the unit or contact Alliance
Laundry Systems at [phone] for the name and
address of the nearest authorized parts distributor. For
technical assistance, call [phone].
Wiring diagram
The wiring diagram is located inside the contactor or
junction box.
TMB1823N
MODEL NO:
SERIAL NO:
MODEL NO:
SERIAL NO:
V-/ HERTZ/ PHASE
AMPS, WIRES + GROUND
TOTAL kW, MOTOR kW
REQ'D CIRCUIT BREAKER: AMPS
FAN OUTPUT:
@MAX "WC STATIC PRESSURE
EQUIPPED FOR: GAS@ "WC MANIFOLD PRESS.
MIN SUPPLY
PRESSURE:
ANS 72152
CLOTHES DRYER.
VOL II
CGA 72
AMPLFIEDRER
TESTED FOR NATURAL &
LIQUID PETROLEUM GASSES
MAX SUPPLY
PRESSURE:
"WC. "WC.
INPUT: BTU/hr @ BTU/cu.ft.
MADE IN U.S.A./FABRIQUE AU ETATS UNIS/FABRICADO EN LOS ESTADOS UNIDOS 70051001

70284701 7
Section 2 Introduction
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
How a tumbler works
A tumbler uses heated air to dry loads of laundry.
①When 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).
②The heated air moves into the cylinder, where it is
circulated through the wet load by the tumbling
action of the cylinder.
③The air then passes through the lint filter, exhaust
fan, and is vented to the outdoors.
1
2
3
T001CE3A

870284701
Section 2 Introduction
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
Notes

70284701 9
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
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
Section 3
Troubleshooting
IMPORTANT: Refer to wiring diagram for aid in
testing tumbler components.
1. TUMBLER DOES NOT START
2. MOTOR DOES NOT START
POSSIBLE CAUSE TO CORRECT
Inoperative motor relay. • Test relay and replace if necessary.
Loading door is open. • Close loading door completely.
Drying timer is in an off position. (Manual Timer
Models) • Turn drying timer on.
Incorrect amount of coins inserted into coin drop. • Check that proper amount of coins are inserted.
Inoperative coin drop. • Test coin drop and replaced if inoperative.
PUSH-TO-START button not properly activated.
(Manual Timer Models) • Press and hold in push-to-start button for three seconds.
Electrical power off or circuit breaker or fuse
blown. • Check power supply, or replace fuses.
Lint panel open. • Close and lock lint panel.
Blown fuse on tumbler. • Check fuse (in junction box) and replace if necessary.
POSSIBLE CAUSE TO CORRECT
Electrical power off or circuit breaker fuse blown. • Check power supply, or replace fuses.
Loading door switch or lint panel switch not closed
or inoperative switch. • Close door or test switch and replace if inoperative.
Door switch improperly adjusted. • Refer to Adjustments Section for door switch adjustment.
Start circuit not complete. • Press and hold in push-to-start button for three seconds.
Inoperative motor. • Have motor tested and replace if inoperative.
Broken, loose, or incorrect wiring. • Refer to wiring diagram.
Fan or fan motor binding. • Replace fan or motor assembly.
Cylinder or cylinder motor binding. • Replace cylinder, bearing, rollers, or motor assembly.
Inoperative transformer. • Test and replace if necessary.
Inoperative motor relay. • Test relay and replace if inoperative.
Inoperative airflow switch. (Only on manual timer
and rotary coin drop.) • Test switch, replace or adjust as required.

10 70284701
Section 3 Troubleshooting
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
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
3. MOTOR OVERLOAD PROTECTOR CYCLES REPEATEDLY
4. MOTOR RUNS BUT CYLINDER DOES NOT TURN
5. MOTOR DOES NOT STOP
POSSIBLE CAUSE TO CORRECT
Incorrect voltage • Refer to Installation Manual for electrical requirements.
Clothes load is too large. • Remove part of load.
Clothes cylinder is binding. • Check cylinder for binding.
Inadequate wiring. • Electrician should verify that wiring and voltage is
adequate.
Inadequate make-up air. • Refer to Installation Manual for make-up air
requirements.
Lint buildup around tumbler, poor maintenance. • Clean lint accumulation on and around the motors.
Broken, loose or incorrect wiring. • Refer to wiring diagram.
POSSIBLE CAUSE TO CORRECT
Broken cylinder belt. • Replace cylinder belt.
Cylinder is binding. • Check cylinder for binding.
POSSIBLE CAUSE TO CORRECT
Inoperative door switch. • Test switch and replace if inoperative.
Inoperative coin drop. • Test coin drop and replace if inoperative.
Incorrect wiring. • Refer to wiring diagram.
Electronic control inoperative. • Replace electronic control.
Inoperative motor relay. • Test relay and replace if inoperative.

70284701 11
Section 3 Troubleshooting
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
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
6. BURNER DOES NOT IGNITE
POSSIBLE CAUSE TO CORRECT
Improper or inadequate exhaust system. • Refer to Installation Manual for exhaust system
requirements.
Drying selector in the “Cool Down” or “No Heat”
portion of cycle. • Add dry time or select heat.
Inoperative cabinet thermostat or stove. • Test thermostats and replace if inoperative.
Insufficient gas supply. • Open partially closed gas shut-off valve, or correct low
gas pressure. Check manifold pressure and adjust to
pressure specified on serial plate. If pressure cannot be
obtained, have your local gas company check main gas
pressure.
Incorrect orifices. • Tumbler is equipped for type of gas specified on serial
plate. If orifices are different from that specified on serial
plate, obtain and install correct orifices.
Lint buildup. • Clean lint compartment. Check damper for lint
accumulation. Check ductwork for lint build-up.
Inadequate duct work and make-up air. • Refer to Installation Manual to ensure that ductwork and
make-up air openings are sized accurately.
Inoperative airflow switch. • Test switch and replace if inoperative.
Airflow switch out of adjustment. • Refer to Adjustments Section for airflow switch
adjustment.
Broken, loose, or incorrect wiring. • Refer to wiring diagram.
Improper igniter to burner tab clearances. • Set gap as described in Service Procedures Section.
Valve coils inoperative. • Check valve coils and replace if necessary.
Gas shut-off valve in the closed position. • Open shut-off valve.
Ground wire from Instant Electronic Ignition (IEI)
board not connected to ground terminal. • Connect ground wire to ground terminal.
Inoperative IEI control. • Replace IEI control.
Inoperative motor switch. • Replace motor.
Inoperative microprocessor, accumulator switch
(rotary coin drop) or C1 relay (timer models). • Test and replace as needed.
Instant Electronic Ignition (IEI) control in safety
lockout. • Reset IEI control by opening and closing loading door. (Non-European models only)
• Reset IEI by pressing reset button on back of unit.
(European models only)

12 70284701
Section 3 Troubleshooting
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
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
7. BURNER IGNITES AND GOES OUT REPEATEDLY
8. BURNER DOES NOT SHUT OFF
POSSIBLE CAUSE TO CORRECT
Insufficient gas pressure. • Check gas supply and pressure.
Inoperative cabinet or stove thermostat. • Test thermostat and replace if inoperative.
Improper or inadequate exhaust system. • Refer to Installation Manual for exhaust systems
requirements.
Improper orifices. • Tumbler is equipped for type of gas specified on serial
plate. If orifices are different from that specified on serial
plate, obtain and install correct orifices.
Broken, loose or incorrect wiring. • Refer to wiring diagram.
Excessive igniter to burner clearance. • Set gap as described in Service Procedures Section.
Inadequate make-up air. • Refer to Installation Manual for make-up air
requirements.
POSSIBLE CAUSE TO CORRECT
Impurities on gas valve seat, preventing valve from
closing. • Replace gas valve.
Incorrect wiring. • Refer to wiring diagram.

70284701 13
Section 3 Troubleshooting
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
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
9. CLOTHES DO NOT DRY
10. TUMBLER OVERHEATING
POSSIBLE CAUSE TO CORRECT
Not enough heating time allocated for the load. • Start cycle again with enough time to dry load.
Burner does not ignite. • Refer to Paragraph 6.
Too much water in articles being dried. • Remove excess water.
Clothes load too large. • Remove part of load. Maximum load is 25 pound dry
weight (cotton load) for 25 pound Tumbler, etc.
Improper or inadequate exhaust system. • Refer to Installation Manual for exhaust system
requirements.
Burner ignites and goes out repeatedly. • Refer to Paragraph 7.
Drying selector improperly set. • Set selector for higher setting.
Incorrect voltage. • Refer to Installation Manual for electrical requirements.
Inadequate make-up air. • Refer to Installation Manual for make-up air
requirements.
Exhaust duct to the outside blocked. • Clean duct to remove blockage.
Clogged lint screen. • Clean lint screen.
Inoperative thermistor • Replace thermistor.
Exhaust damper binding. • Adjust damper so it turns freely.
POSSIBLE CAUSE TO CORRECT
Incorrect main burner orifices. • Obtain and install correct orifices.
Gas pressure too high or low. • Adjust gas pressure as specified on serial plate.
Inadequate make-up air. • Refer to Installation Manual for make-up air
requirements.
Lint buildup. • Clean lint compartment. Check damper for lint
accumulation. Check ductwork for lint build-up.
Restricted or inadequate exhaust system. • Remove obstruction or lint build up from exhaust
ductwork. Refer to Installation Manual for exhaust
system requirements.
Inoperative thermistor. • Check wiring to ensure thermistor is connected. Replace
thermistor if necessary.
Exhaust damper binding. • Adjust damper so it turns freely.

14 70284701
Section 3 Troubleshooting
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
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
11. BURNERS NOT BURNING PROPERLY
12. LOADING DOOR OPENS DURING OPERATION
NOTE: All tumbler panels must be in place and on the machine for proper operation.
POSSIBLE CAUSE TO CORRECT
Dirt in burner. • Remove burner and blow out the dirt.
Gas pressure too high or low. • Check serial plate on back of tumbler for correct gas
pressure.
Incorrect orifices. • Tumbler is equipped for the type of gas specified on serial
plate. If orifices are different from that specified on serial
plate, obtain and install correct orifices.
Restricted or blocked exhaust duct. • Disassemble and clean exhaust system.
Inadequate make-up air. • Refer to Installation Manual for make-up air
requirements.
POSSIBLE CAUSE TO CORRECT
Tumbler improperly leveled. • Refer to Adjustments Section for leveling leg adjustment.
Excessive load in tumbler. • Remove part of load and restart tumbler.
Incorrect loading door strike adjustment. • Refer to Adjustments Section for strike adjustment.

70284701 15
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
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
Section 4
Grounding
Grounding Instructions
This tumbler must be grounded. In the event of
malfunction or breakdown, grounding will reduce the
risk of electric shock by providing the path of least
resistance for electric current. This tumbler must be
connected to a grounded metal, permanent wiring
system; or an equipment grounding conductor must be
run with the circuit conductors and connected to the
appropriate ground location.
NOTE: To ensure protection against shock, this
tumbler MUST be electrically grounded in
accordance with local codes, or in the absence of
local codes, with the latest edition of the National
Electrical Code ANSI/NFPA No. 70. In Canada the
electrical connections are to be made in accordance
with CSA C22.1 or the latest edition of the
Canadian Electrical Code, Part I and/or local codes.
Electrical work should be done by a qualified
electrician.
IMPORTANT: To avoid a short to ground on the
control transformer line, or voltage output that
could run the control or cause it to run on a reduced
voltage; DO NOT connect a “High Leg” or “Stinger
Leg” to a single phase machine with an electrical
supply coming from a three phase service. A “High
Leg” or “Stinger Leg” on three phase machines
should be connected to L3.
To reduce the risk of fire and electric shock, check with a qualified serviceperson for proper
grounding procedures. Improper connection of the equipment grounding conductor may result
in a risk of electric shock.
W068R1
WARNING
All electrical connections should be made
by a qualified electrician.
To reduce the risk of electrical shock, de-
energize the electrical circuit being
connected to the tumbler before making any
electrical connections. Never attempt to
connect a live circuit.
W070
WARNING

16 70284701
Section 4 Grounding
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
Notes

70284701 17
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
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
Section 5
Service Procedures
IMPORTANT: When reference is made to the left
or right hand direction in this manual, it is from the
service person’s position facing the front of the
tumbler.
13. LOADING DOOR ASSEMBLY
Refer to Figure 1.
a. Open loading door.
b. While supporting door, remove two screws
from hinge cam at top of door and slide door out
of the bottom hinge.
c. Remove door.
14. DOOR HINGE
Refer to Figures 1 and 2.
a. Open loading door.
b. While supporting door, remove two screws
from hinge cam at top of door and slide door out
of the bottom hinge.
c. Remove door.
d. Remove nuts and screws holding hinge to door
frame. Refer to Figure 2.
15. DOOR HANDLE
Refer to Figure 2.
a. Open loading door.
b. Remove screws holding door handle to door.
Figure 1
T252SE1B
DOOR
HINGE LUG
HINGE CAM
SCREW
Figure 2
DOOR
HANDLE
SCREW
DOOR FRAME
SCREW
HINGE
DOOR
FRAME
NUT
DOOR
HANDLE
TMB1821S

18 70284701
Section 5 Service Procedures
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
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
16. FRONT PANEL
Refer to Figure 3.
a. Unlock and remove top access panel.
b. Unlock and remove lint panel.
c. Remove two screws at the loading door hinge
lug. Refer to Figure 1.
d. Remove eight screws holding front panel to
cabinet, leaving one screw on the top.
e. Support front panel and pull bottom of panel
away from the tumblers far enough to
disconnect door switch wires.
f. Remove remaining screw at top.
g. Remove front panel.
NOTE: Ensure front baffle gaskets are in place.
Refer to Figure 21.
NOTE: Refer to wiring diagram when rewiring
door switch.
Figure 3
START
25
C
HIGH
TEMP
MED
TEMP
LOW
TEMP
NO
HEAT
123
SELECT
TEMP
INSERT
COIN
PUSH
START
TMB1752S
FRONT
PANEL
PANEL
SCREW
DOOR
SWITCH
TOP
ACCESS
PANEL
LINT
PANEL