Alliance Laundry Systems HC18 User manual

Part No. F238000R0
September 1999
B003C
Preliminary Service
Washer-Extractor
Cabinet Hardmount
HC18 SC18 UC18
HC25 SC25 UC25
HC35 SC27 UC27
HC50 SC35 UC35
SC50 UC50

F238000 1
© Copyright 1999, Alliance Laundry Systems LLC
All rights reserved. No part of the contents of this book may be reproduced or transmitted in any form or by any means without
the expressed written consent of the publisher.
Table of Contents
Section 1 – Safety Information
Locating an Authorized Servicer: ............................4
Section 2 – Introduction
Customer Service .....................................................5
Nameplate Location .................................................5
Model Identification.................................................6
Model Familiarization..............................................7
How Your Washer-Extractor Works .......................8
Section 3 – Troubleshooting
1. Machine won’t start ...........................................9
2. Machine does not operate at wash speed...........9
3. Motor runs, but cylinder rotates slowly,
or not at all .........................................................9
4. Wash motor runs continuously
in one direction ................................................10
5. Motor does not operate at spin speed ..............10
6. Motor momentarily starts on and off in spin ...10
7. Machine will not fill with water ......................10
8. Machine will not drain.....................................11
9. Machine will not hold water ............................11
10. Door won’t open ..............................................11
11. Water level too high.........................................11
12. Water level too low..........................................11
13. Door leaks........................................................11
14. Excessive vibration and/or noise during spin ..12
15. Excessive cycle time........................................12
Section 4 – Service Procedures
16. Cabinet Top .....................................................13
17. Control Module Box Cover .............................13
18. Coin Drop ........................................................13
19. Indicator Lights................................................14
20. Graphic Panel Overlay.....................................15
21. Timer and Selector Switch Bracket .................15
22. Pressure Switch................................................16
23. Door Lock PC Board / Capacitor.....................17
24. Timer Delay Relay...........................................18
25. Flange Relay ....................................................18
26. Contactors........................................................19
27. Overload Protector...........................................20
28. Control Transformer ........................................20
29. Mechanical Interlock .......................................21
30. Solid State/Start Switch ...................................21
31. Water Valves ...................................................22
32. Siphon Break ...................................................23
33. Dispenser .........................................................24
34. Belt...................................................................25
35. Motor ...............................................................25
36. Motor Capacitors .............................................26
37. Outer Front Panel.............................................26
38. Loading Door...................................................27
39. Door Lock Assembly.......................................28
40. Cylinder Assembly ..........................................29
41. Trunnion Assembly .........................................29
42. Bearings and Seals...........................................30

F238000 3
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.
aDANGER
Danger indicates the presence of a hazard that will cause severe personal injury, death, or substantial property
damage if the danger is ignored.
aWARNING
Warning indicates the presence of a hazard that can cause severe personal injury, death, or substantial property
damage if the warning is ignored.
aCAUTION
Caution indicates the presence of a hazard that will or can cause minor personal injury or property damage if the
caution is ignored.
Additional precautionary statements (“IMPORTANT”and “NOTE”) are followed by specific instructions.
IMPORTANT
The word “IMPORTANT”is used to inform the reader of specific procedures where minor machine damage will
occur if the procedure is not followed.
NOTE
The word “NOTE”is used to communicate installation, operation, maintenance or servicing information that is
important but not hazard related.
In the interest of safety, some general precautions relating to the operation of this machine follow.
• 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 that you understand and have the
skills to carry out.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the product is properly grounded and to reduce the risk of fire,
electric shock, serious injury, or death.
W006R1
WARNING
(continued)

4F238000
Section 1 Safety Information
NOTE: The WARNINGS and IMPORTANT INSTRUCTIONS appearing in this manual are not meant to
cover all possible conditions and situations that may occur. Common sense, caution and care must be
exercised when installing, maintaining or operating the washer-extractor.
Always contact your dealer, distributor, service agent or the manufacturer about any problems or conditions you do
not understand.
Locating an Authorized Servicer:
Alliance Laundry Systems is not responsible for personal injury or property damage resulting from improper
service. Review all service information before beginning repairs.
Warranty service must be performed by an authorized technician, using authorized factory parts. If service is
required after the warranty expires, Alliance Laundry Systems also recommends contacting an authorized
technician and using authorized factory parts.
To reduce the risk of electrical shock, fire, explosion, serious injury or death:
•Disconnect electric power to the washer-extractor before servicing.
•Never start the washer-extractor with any guards/panels removed.
•Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the washer-extractor is properly grounded.
W171
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
WARNING

F238000 5
Section 2
Introduction
Customer Service
Alliance Laundry Systems is not responsible for
personal injury or property damage resulting from
improper service. Review all service information
before beginning repairs.
If literature or replacement parts are required,
contact the source from whom the machine was
purchased or contact Alliance Laundry Systems at
[phone] for the name of the nearest
authorized parts distributor.
For technical assistance, call any of the following
numbers:
[phone]
[phone]
Marianna, Florida
[phone]
Ripon, Wisconsin
.
Nameplate Location
When calling or writing about your product, be
sure to mention model and serial numbers. Model
and serial numbers are located on nameplate(s) as
shown.
UNIMAC
Model No.
HC80PC3AU10002
1195072314
208-240 14
40
60 4 3
80 36
0797
560501
530
Serial No.
VoltageAmps
Required Circuit Breaker Amps.
HzWire Phase
Max. LoadKGMax. Speed RPM
LB
Elec. Heating
Product No. Date Code
KWSteam Press PSIBAR
UNIMAC
Model No.
HC80PC3AU10002
1195072314
208-240 14
40
60 4 3
80 36
0797560501
530
Serial No.
Voltage Amps
Required Circuit Breaker Amps.
Hz Wire Phase
Max. Load KG Max. Speed RPMLB
Elec. Heating
Product No. Date Code
KW Steam Press PSI BAR
B155P

6F238000
Section 2 Introduction
Model Identification
Information in this manual is applicable to these washer-extractors:
HC18MC2
HC18MD2
HC18MH2
HC18MN2
HC18MV2
HC18PC2
HC18SN2
HC25MC2
HC25MD2
HC25MH2
HC25MN2
HC25MV2
HC25PC2
HC25SN2
HC27MC2
HC27MD2
HC27MH2
HC27MN2
HC27MV2
HC35MC2
HC35MD2
HC35MH2
HC35MN2
HC35MV2
HC35PC2
HC35SN2
HC50MC2
HC50MD2
HC50MH2
HC50MN2
HC50MV2
HC50PC2
HC50SN2
SC18MC2
SC18MC3
SC18MD2
SC18MD3
SC18MH2
SC18MH3
SC18MN2
SC18MN3
SC18MV2
SC18MV3
SC18SN2
SC18SN3
SC18VNV
SC25MC2
SC25MD2
SC25MH2
SC25MN2
SC25MV2
SC25SN2
SC27MC2
SC27MD2
SC27MH2
SC27MN2
SC27MV2
SC27SN2
SC27VNV
SC35MC2
SC35MC3
SC35MD2
SC35MD3
SC35MH2
SC35MH3
SC35MN2
SC35MN3
SC35MV2
SC35MV3
SC35SN2
SC35SN3
SC35VNV
SC50MC2
SC50MC3
SC50MD2
SC50MD3
SC50MH2
SC50MH3
SC50MN2
SC50MN3
SC50MV2
SC50MV3
SC50SN2
SC50VNV
UC18MC2
UC18MC3
UC18MD2
UC18MD3
UC18MH2
UC18MH3
UC18MN2
UC18MN3
UC18MV2
UC18MV3
UC18PC2
UC18PC3
UC18PN2
UC18PN3
UC18VNV
UC25MC2
UC25MD2
UC25MH2
UC25MN2
UC25MV2
UC25PC2
UC25PN2
UC27MC2
UC27MD2
UC27MH2
UC27MN2
UC27MV2
UC27PC2
UC27PN2
UC27VNV
UC35MC2
UC35MC3
UC35MD2
UC35MD3
UC35MH2
UC35MH3
UC35MN2
UC35MN3
UC35MV2
UC35MV3
UC35PC2
UC35PC3
UC35PN2
UC35PN3
UC35VNV
UC50MC2
UC50MC3
UC50MD2
UC50MD3
UC50MH2
UC50MH3
UC50MN2
UC50MN3
UC50MV2
UC50MV3
UC50PC2
UC50PC3
UC50PN2
UC50PN3
UC50VNV

F238000 7
Section 2 Introduction
Model Familiarization
Model Number Familiarization Guide
Sample Model Number: SC35MN2CU20001
SC Machine Type C = Cabinet
35 Machine Capacity (pounds dry weight)
M
(E)
(P)
(S)
(V)
Type of Electrical Control M = Mechanical Timer
E = WX/EDC Microcomputer
P = P-Series Microcomputer†
S = S-Series Microcomputer
V = V-Series Microcomputer
N
(C)
(D)
(H)
(V)
Coin Meter Option N = No Coin Meter
C = W2000 (Computer-controlled models only)‡
D = Digital (Mechanical Timer models only)
H = Horizontal Slide (Mechanical Timer models only)
V = Vertical Drop (Mechanical Timer models only)
2
(3)
(V)
Speed 2 = 2-Speed
3=3-Speed
V = Variable-Speed
CElectrical Characteristics See Voltage Designation Chart in this section.
U2 Design Series
0001 Option Identification (varies from machine to machine)
†Models designated “PN”use the S-Series Microcomputer.
‡Models designated “MC”are prepared for use with an aftermarket coin meter.
B024S
SC35MN2CU20001
380 - 415 5
15
00000000000
50 43
35 16 470
500000

8F238000
Section 2 Introduction
How Your Washer-Extractor Works
The design of the machine emphasizes performance reliability and long service life.
In washer-extractor sizes up through the 50-pound models, the cylinder is supported with two sealed
bearings mounted in a machined cast iron trunnion. Bearing housings are bolted to a heavy gamma frame
for all models.
The 2-speed machines use one dual-speed motor to drive the cylinder using a V-belt drive in wash and
extract speeds.
The 3-speed 18-pound models use one triple-speed motor to drive the cylinder at wash, medium extract
and high extract speeds. The 3-speed 35-pound and 50-pound models use one single-speed and one dual-
speed motor to drive the cylinder at wash, medium extract and high extract speeds.
Variable speed washer-extractors use one motor to drive the cylinder. In all models, the motor is driven
using a flat belt drive.
A door-lock system prevents opening of the stainless steel door when a cycle is in progress. It also
prevents operation of the machine when the door is open.
An electrically operated drain valve is used to retain the water and wash solution in the machine during
the wash and rinse steps. The drain valve closes when power is applied and opens when power is
removed, allowing the machine to drain in the event of a power failure.
The cylinder is designed with lifters or ribs that lift the garments from the wash solution when the
cylinder rotates at slow speed and allow the garments to tumble back into the solution. The cylinder is
perforated, allowing the water to pass through and drain from within during the wash and extract cycles.
Electrical controls for the machine are housed in a separate enclosure located underneath the top cover of
the machine.
The polypropylene supply dispenser is located under a flexible cover on the left side of the machine,
viewed from the front. The compartments are numbered 1–3, starting from the left side of the machine. A
nozzle flushes dry supplies from the compartment with water at the appropriate time in the cycle.
Liquid supplies can be injected directly into the dispenser compartments by a customer-supplied external
chemical supply system. Hose barbs on the rear of the machine facilitate connection to an external
chemical supply system. A terminal strip in the input power junction box provides control signals.

F238000 9
To reduce the risk of electrical shock, fire, explosion, serious injury or death:
•Disconnect electric power to the washer-extractor before servicing.
•Never start the washer-extractor with any guards/panels removed.
•Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the washer-extractor is properly grounded.
W171
WARNING
Section 3
Troubleshooting
IMPORTANT: Refer to appropriate model wiring diagram for aid in testing components.
1. MACHINE WON’T START
2. MACHINE DOES NOT OPERATE AT WASH SPEED
3. MOTOR RUNS, BUT CYLINDER ROTATES SLOWLY, OR NOT AT ALL
POSSIBLE CAUSE TO CORRECT
No current to machine. •Check main fuse or circuit breaker on power supply
•Check control circuit fuse on the control module.
•Check for broken or disconnected electrical wires.
Door handle switch defective. •Check door handle switch operation. Make sure that the
door handle switch lever arm has completely depressed
the switch. Adjust or replace as required.
POSSIBLE CAUSE TO CORRECT
No current to motor through wash contactor. •Check and replace wash contactor as required.
Motor thermal protector tripped. •Automatically resets after 15-30 minutes. Check reason
for overheating.
Motor defective. •Check motor leads and ensure that motor receives power.
If power is correct replace motor if necessary.
Loose or worn drive belts. •Replace belts and/or check tension.
Cylinder jammed by foreign objects. •Check for free rotation by hand. Remove foreign object
(may require disassembly of machine).
POSSIBLE CAUSE TO CORRECT
Loose or worn drive belts. •Replace belts and/or check tension spring.
Motor pulley loose or off motor shaft. •Check pulley –tighten set screw or bushing. If necessary,
replace with new key.
Drive belt broken. •Check and replace drive belt.

10 F238000
Section 3 Troubleshooting
To reduce the risk of electrical shock, fire, explosion, serious injury or death:
•Disconnect electric power to the washer-extractor before servicing.
•Never start the washer-extractor with any guards/panels removed.
•Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the washer-extractor is properly grounded.
W171
WARNING
4. WASH MOTOR RUNS CONTINUOUSLY IN ONE DIRECTION
5. MOTOR DOES NOT OPERATE AT SPIN SPEED
6. MOTOR MOMENTARILY STARTS ON AND OFF IN SPIN
7. MACHINE WILL NOT FILL WITH WATER
POSSIBLE CAUSE TO CORRECT
Drain valve stays open. •Check drain valve.
Level will not build up in machine. •Check level switch function and drain valves.
Level switch not satisfied or activated. •Check level switch function.
Water overflows through overflow. •Check level switch function.
POSSIBLE CAUSE TO CORRECT
Spin contactor defective. •Check coils and contactor functions. Replace contactor as
required.
Thermal overload protector in motor tripped. •Automatically resets after 15-30 minutes. If not, replace
motor. Investigate reason for overheating.
Water level switch has not reset. •Check level switch, replace as necessary. Check air
chamber and hoses to switch.
Drain will not open. •Check drain valve —might be stuck in closed position.
POSSIBLE CAUSE TO CORRECT
Machine is not draining fast enough. •Check drain valve and drain system of the machine and
facility.
POSSIBLE CAUSE TO CORRECT
No water from service lines. •Check shut-off valves on main supply.
Clogged inlet valve strainers. •Remove supply hoses and check strainers in valves —
clean if clogged.
Defective inlet valves. •Check solenoids for proper function.
•Check diaphragm and plunger —replace with kit if
necessary.

F238000 11
Section 3 Troubleshooting
To reduce the risk of electrical shock, fire, explosion, serious injury or death:
•Disconnect electric power to the washer-extractor before servicing.
•Never start the washer-extractor with any guards/panels removed.
•Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the washer-extractor is properly grounded.
W171
WARNING
8. MACHINE WILL NOT DRAIN
9. MACHINE WILL NOT HOLD WATER
10. DOOR WON’T OPEN
11. WATER LEVEL TOO HIGH
12. WATER LEVEL TOO LOW
13. DOOR LEAKS
POSSIBLE CAUSE TO CORRECT
Defective drain valve. •Check drain valve —might be stuck in closed position.
•Check drain system of facility.
•Check drain valve return spring.
•Check if drain to machine is clogged.
POSSIBLE CAUSE TO CORRECT
Defective drain valve. •Check drain valve motor. Check drain valve for foreign
matter which could keep valve open.
POSSIBLE CAUSE TO CORRECT
Door unlock solenoid defective. •Check solenoid for continuity.
Door locking arm stuck. •Check that locking arm is moving freely.
POSSIBLE CAUSE TO CORRECT
Defective water valves. •Check water valve diaphragm and plunger —replace with
repair kit if necessary.
Level control switch defective. •Replace water level control.
Air trap or hoses to water level control leaking. •Check and correct for leaks in hoses and air trap.
POSSIBLE CAUSE TO CORRECT
Water level control switch defective. •Replace water level control.
POSSIBLE CAUSE TO CORRECT
Insufficient pressure on door gasket. •Adjust number of shims under door hinge and door lock
latch.
Damaged gasket. •Replace gasket.

12 F238000
Section 3 Troubleshooting
To reduce the risk of electrical shock, fire, explosion, serious injury or death:
•Disconnect electric power to the washer-extractor before servicing.
•Never start the washer-extractor with any guards/panels removed.
•Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the washer-extractor is properly grounded.
W171
WARNING
14. EXCESSIVE VIBRATION AND/OR NOISE DURING SPIN
15. EXCESSIVE CYCLE TIME
POSSIBLE CAUSE TO CORRECT
Inadequate foundation or loosened bolt. •Tighten bolts, be sure the foundation is adequate for the
machine.
POSSIBLE CAUSE TO CORRECT
Insufficient water supply to machine. •Water supply lines must be of adequate size.
•Water pressure is too low —increase if possible.
Clogged inlet valve strainer. •Check inlet valve strainer and clean as required.
Clogged inlet hose strainer. •Check inlet hose strainer and clean as required.

F238000 13
To reduce the risk of electrical shock, fire, explosion, serious injury or death:
•Disconnect electric power to the washer-extractor before servicing.
•Never start the washer-extractor with any guards/panels removed.
•Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the washer-extractor is properly grounded.
W171
WARNING
Section 4
Service Procedures
16. CABINET TOP
a. Insert key into cabinet top lock and turn
clockwise. Lift up on front of cabinet top until
it is just past the rear hinges, or 90 degrees, refer
to Figure 1. Lift cabinet top off machine and set
aside.
NOTE: When reinstalling cabinet top, metal edges
on dispenser opening must be fitted inside of
dispenser.
17. CONTROL MODULE BOX COVER
a. Insert key into cabinet top lock and turn
clockwise. Lift up on front of cabinet top until
it is just past the rear hinges, or 90 degrees, refer
to Figure 1. Lift cabinet top off machine and set
aside.
NOTE: When reinstalling cabinet top, metal edges
on the dispenser opening must be fitted inside of
dispenser.
b. Remove two T20 Torx head screws from
control module box cover. Lift up cover and set
aside.
18. COIN DROP
a. Insert key into cabinet top lock and turn
clockwise. Lift up on front of cabinet top until
it is just past the rear hinges, or 90 degrees, refer
to Figure 1. Lift cabinet top off machine and set
out of way.
NOTE: When reinstalling cabinet top, metal edges
on dispenser opening must be fitted inside of
dispenser.
b. Remove two T20 Torx head screws from
control module box cover. Lift up cover and set
aside.
c. Loosen screw holding coin drop to backside of
control panel.
d. Remove screw in middle of coin drop.
e. Disconnect red three-wire harness from power
supply board. Remove wires from coin
blocking solenoid, refer to Figure 2.
f. Remove coin drop and set aside.
Figure 1
B001SE1A
METAL EDGES
OF DISPENSER
OPENING
HINGE

14 F238000
Section 4 Service Procedures
To reduce the risk of electrical shock, fire, explosion, serious injury or death:
•Disconnect electric power to the washer-extractor before servicing.
•Never start the washer-extractor with any guards/panels removed.
•Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the washer-extractor is properly grounded.
W171
WARNING
19. INDICATOR LIGHTS
a. Insert key into cabinet top lock and turn
clockwise. Lift up on front of cabinet top until
it is just past the rear hinges, or 90 degrees, refer
to Figure 1. Lift cabinet top off machine and set
out of way.
NOTE: When reinstalling cabinet top, metal edges
on dispenser opening must be fitted inside of
dispenser.
b. Remove two T20 Torx head screws from
control module box cover. Lift up cover and set
aside.
c. Remove wires from indicator lights.
d. Press in on locking tabs and push lights out
through front of control panel, refer to Figure 3.
Figure 2
B002SE1A
POWER SUPPLY
BOARD
WIRE
HARNESS
COIN
DROP
COIN
BLOCKING
SOLENOID
Figure 3
B003SE1A
WIRES
LOCKING
TABS

F238000 15
Section 4 Service Procedures
To reduce the risk of electrical shock, fire, explosion, serious injury or death:
•Disconnect electric power to the washer-extractor before servicing.
•Never start the washer-extractor with any guards/panels removed.
•Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the washer-extractor is properly grounded.
W171
WARNING
20. GRAPHIC PANEL OVERLAY
NOTE: The graphic panel overlay has an adhesive
backing. Using a hair dryer to heat up adhesive will
make it easier to pull off overlay.
a. Remove adhesive overlay by peeling it from
front channel.
Installing Graphic Panel Overlay
IMPORTANT: Use denatured alcohol to clean
residue from front channel before applying new
decal.
NOTE: Before removing protective backing from
new overlay, check fit of overlay to front channel.
Indicator light holes and selector switch holes are
the locating guides.
a. Once panel overlay is fitted to front channel,
carefully peel protective backing from right end
of panel overlay and press in place.
b. Remove rest of the protective backing from
panel overlay and press overlay into place.
21. TIMER AND SELECTOR SWITCH
BRACKET
a. Insert key into cabinet top lock and turn
clockwise. Lift up on front of cabinet top until
it is just past the rear hinges, or 90 degrees, refer
to Figure 1. Lift cabinet top off machine and set
out of way.
NOTE: When reinstalling cabinet top, metal edges
on dispenser opening must be fitted inside of
dispenser.
b. Remove two T20 Torx head screws from
control module box cover. Lift up cover and set
aside.
IMPORTANT: When replacing the timer and
selector switch assembly, do a wire-for-wire
exchange, or write down all the wire terminal
connections before removing any wires. If you have
a problem, refer to the wiring diagram on the
underside of the cabinet top.
c. Remove four nuts holding timer and bracket to
front of control panel, refer to Figure 4.
d. Remove timer and selector switch bracket as far
as wires permit.
Figure 4
B004SE1A
SELECTOR
SWITCH
BRACKET
SELECTOR
SWITCH
TIMER

16 F238000
Section 4 Service Procedures
To reduce the risk of electrical shock, fire, explosion, serious injury or death:
•Disconnect electric power to the washer-extractor before servicing.
•Never start the washer-extractor with any guards/panels removed.
•Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the washer-extractor is properly grounded.
W171
WARNING
22. PRESSURE SWITCH
a. Insert key into cabinet top lock and turn
clockwise. Lift up on front of cabinet top until
it is just past the rear hinges, or 90 degrees, refer
to Figure 1. Lift cabinet top off machine and set
out of way.
NOTE: When reinstalling cabinet top, the metal
edges on dispenser opening must be fitted inside of
dispenser.
b. Remove two T20 Torx head screws from
control module box cover. Lift up cover and set
aside.
c. Remove wires from pressure switch at
disconnect block.
d. Press in on locking tabs at back of switch and
pull switch out to remove it from control box,
refer to Figure 5.
e. Disconnect pressure hose.
IMPORTANT: After disconnecting pressure hose,
tape hose to side of control module box to prevent
hose from falling to washer-extractor base.
IMPORTANT: When installing the pressure hose,
blow air through the pressure hose before
connecting the hose to the pressure switch to remove
any condensation that may have accumulated in the
hose.
Figure 5
B005SE1A
LOCKING
TABS
PRESSURE
HOSE
PRESSURE
SWITCH

F238000 17
Section 4 Service Procedures
To reduce the risk of electrical shock, fire, explosion, serious injury or death:
•Disconnect electric power to the washer-extractor before servicing.
•Never start the washer-extractor with any guards/panels removed.
•Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the washer-extractor is properly grounded.
W171
WARNING
23. DOOR LOCK PC BOARD / CAPACITOR
IMPORTANT: To reduce the risk of electrical
shock, touch capacitor terminals with a resistor to
discharge the capacitor.
a. Insert key into cabinet top lock and turn
clockwise. Lift up on front of cabinet top until
it is just past the rear hinges, or 90 degrees, refer
to Figure 1. Lift cabinet top off machine and set
out of way.
NOTE: When reinstalling cabinet top, metal edges
on dispenser opening must be fitted inside of
dispenser.
b. Remove two T20 Torx head screws from
control module box cover. Lift up cover and set
aside.
c. Remove positive and negative screws holding
board to capacitor, refer to Figure 6.
d. Remove board from capacitor.
e. Remove screws holding capacitor U-clamp to
rear channel. Remove capacitor.
IMPORTANT: When reinstalling capacitor and PC
Board, make sure the positive screw is in the positive
hole, refer to Figure 6.
Figure 6
+
B006SE1A
CAPACITOR
U-CLAMP
NEGATIVE
SCREW
POSITIVE
SCREW
DOOR LOCK
PC BOARD
POSITIVE
HOLE

18 F238000
Section 4 Service Procedures
To reduce the risk of electrical shock, fire, explosion, serious injury or death:
•Disconnect electric power to the washer-extractor before servicing.
•Never start the washer-extractor with any guards/panels removed.
•Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the washer-extractor is properly grounded.
W171
WARNING
24. TIMER DELAY RELAY
IMPORTANT: When replacing the timer delay
relay assembly, do a wire-for-wire exchange, or
write down all the wire terminal connections before
removing any wires. If you have a problem, refer to
the wiring diagram on the underside of the cabinet
top.
a. Insert key into cabinet top lock and turn
clockwise. Lift up on front of cabinet top until
it is just past the rear hinges, or 90 degrees, refer
to Figure 1. Lift cabinet top off machine and set
out of way.
NOTE: When reinstalling cabinet top, metal edges
on dispenser opening must be fitted inside of
dispenser.
b. Remove two T20 Torx head screws from
control module box cover. Lift up cover and set
aside.
c. Remove nut and washer holding relay to
control module box.
d. Remove timer delay relay from control module
box, refer to Figure 7.
25. FLANGE RELAY
IMPORTANT: When replacing the flange relay
assembly, do a wire-for-wire exchange, or write
down all the wire terminal connections before
removing any wires. If you have a problem, refer to
the wiring diagram on the underside of the cabinet
top.
a. Insert key into cabinet top lock and turn
clockwise. Lift up on front of cabinet top until
it is just past the rear hinges, or 90 degrees, refer
to Figure 1. Lift cabinet top off machine and set
out of way.
NOTE: When reinstalling cabinet top, metal edges
on dispenser opening must be fitted inside of
dispenser.
b. Remove two T20 Torx head screws from
control module box cover. Lift up cover and set
aside.
c. Remove two screws holding relay to control
module box.
d. Remove flange relay from control module box,
refer to Figure 7.
Figure 7
B007SE1A
TIMER DELAY
RELAY
FLANGE
RELAY

F238000 19
Section 4 Service Procedures
To reduce the risk of electrical shock, fire, explosion, serious injury or death:
•Disconnect electric power to the washer-extractor before servicing.
•Never start the washer-extractor with any guards/panels removed.
•Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the washer-extractor is properly grounded.
W171
WARNING
26. CONTACTORS
IMPORTANT: Before removing wires from
contactors, mark the terminal contactors and the
wire number so wires can be reinstalled correctly.
a. Insert key into cabinet top lock and turn
clockwise. Lift up on front of cabinet top until
it is just past the rear hinges, or 90 degrees, refer
to Figure 1. Lift cabinet top off machine and set
out of way.
NOTE: When reinstalling cabinet top, metal edges
on dispenser opening must be fitted inside of
dispenser.
b. Remove two T20 Torx head screws from
control module box cover. Lift up cover and set
aside.
c. Pull spring clip on bottom of contactor and
remove contactor from control module box,
refer to Figure 8.
Figure 8
B008SE1A
SPRING
CLIP
CONTACTOR

20 F238000
Section 4 Service Procedures
To reduce the risk of electrical shock, fire, explosion, serious injury or death:
•Disconnect electric power to the washer-extractor before servicing.
•Never start the washer-extractor with any guards/panels removed.
•Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the washer-extractor is properly grounded.
W171
WARNING
27. OVERLOAD PROTECTOR
a. Insert key into cabinet top lock and turn
clockwise. Lift up on front of cabinet top until
it is just past the rear hinges, or 90 degrees, refer
to Figure 1. Lift cabinet top off machine and set
out of way.
NOTE: When reinstalling cabinet top, metal edges
on dispenser opening must be fitted inside of
dispenser.
b. Remove two T20 Torx head screws from
control module box cover. Lift up cover and set
aside.
c. Remove screws holding overload protector to
contactors.
d. Remove overload protector, refer to Figure 9.
IMPORTANT: When installing the overload
protector, line wires up with contactor. Set blue
manual switch, located on top of overload protector
to manual.
28. CONTROL TRANSFORMER
a. Insert key into cabinet top lock and turn
clockwise. Lift up on front of cabinet top until
it is just past the rear hinges, or 90 degrees, refer
to Figure 1. Lift cabinet top off machine and set
out of way.
NOTE: When reinstalling cabinet top, metal edges
on dispenser opening must be fitted inside of
dispenser.
b. Remove two T20 Torx head screws from
control module box cover. Lift up cover and set
aside.
IMPORTANT: When replacing the control
transformer, do a wire-for-wire exchange, or write
down all the wire terminal connections before
removing any wires. If you have a problem, refer to
the wiring diagram on the underside of the cabinet
top.
c. Remove two screws holding transformer to
control module box.
d. Pull transformer off as far as wires permit.
e. Disconnect wires from transformer.
Figure 9
B025S