CMA Dishmachines CMA-181GW User manual

www.cmaglasswashers.com
MODEL CMA-181GW
INSTALLATION & OPERATION
Rev 1.00A
800-854-6417
FAX [phone]
CMA GLASSWASHERS
12700 KNOTT AVENUE
GARDEN GROVE, CALIFORNIA 92841
Owner’s Manual
Keep with machine for reference

www.cmaglasswashers.com
TABLE OF CONTENTS
MODEL CMA-181GW
1. SPECIFICATIONS ........................................................................................ 2
1.1. CMA-181GW........................................................................................................................ 2
1.2. CMA-181GW OPERATIONAL CYCLE..................................................................................... 3
2. GETTING STARTED ..................................................................................... 5
2.1. INTRODUCTION TO CMA-181GW.......................................................................................... 5
2.2. RECEIVING AND INSTALLATION.............................................................................................. 6
2.2.1. Electrical ....................................................................................................................... 6
2.2.2. Plumbing........................................................................................................................ 6
2.2.3. BETA Detergent And Rinse Dispenser. ......................................................................... 7
2.2.4. Safe Ttemp Feature........................................................................................................ 7
2.2.5. Booster Heater Setup..................................................................................................... 9
2.2.6. Installers Checklist ........................................................................................................ 9
3. OPERATION ............................................................................................... 10
3.1. INITIAL SETUP .......................................................................................................................10
3.1.1. Dema Valve and Dema Flow Disc................................................................................10
3.1.2. Rinse and Wash Temperatures .....................................................................................10
3.1.3. Post Instructions...........................................................................................................10
3.2. STARTUP PROCEDURES..........................................................................................................10
3.3. OPERATING AND CLEANING INSTRUCTIONS ..........................................................................11
3.4. PREVENTIVE MAINTENANCE CHART .....................................................................................12
3.5. QUICK SERVICE GUIDE...........................................................................................................13
3.6. TROUBLESHOOTING...............................................................................................................14
4. PARTS KIT ................................................................................................. 17
4.1. INITIAL PARTS KIT (P/N 1100.66).........................................................................................17
5. CUSTOMER NOTICE ................................................................................. 18
6. ELECTRICAL DIAGRAM ............................................................................ 19

MODEL CMA-181GW INSTALLATION & OPERATION MANUAL Rev. 1.00 Page 2
1. Specifications
1.1. CMA-181GW
WATER CONSUMPTION
PER RACK .75 GAL. (2.83 L)
PER HOUR 17.9 GAL. (67.6 L)
OPERATING CYCLE
WASH TIME-SEC 94 94
RINSE TIME-SEC 16 16
DWELL TIME-SEC 10 10
TOTAL CYCLE 2 MIN. 2 MIN.
OPERATING CAPACITY
RACKS PER HOUR 30 30
WASH TANK CAPACITY 2.5 GAL. (9.46 L)
PUMP CAPACITY 38 GPM (144 LPM)
WATER REQUIREMENTS
REQUIRED MINIMUM TEMP. * 110°F (43°C)
RECOMMENDED TEMP. ** 140°F (60°C)
WATER INLET ½” 1.27cm
DRAIN CONNECTION 1” 2.54cm
RINSE PRESSURE SET 20 PSI±5 PSI 1.41 kg/cm
2
CYCLE TEMPERATURES
WASH-°F 150°F -160°F (65.5°C/71°C)
RINSE -°F 180°F -195°F (82°C/90°C)
FRAME DIMENSIONS
DEPTH 25” (63.5 cm)
WIDTH 24” (60.96 cm)
HEIGHT 33 ¼” (84.45 cm)
MAX CLEARANCE FOR GLASSWARE 11-1/4” (28.6 cm)
ELECTRICAL RATING* 208 VOLTS
1 PH—60 Hz 230 VOLTS 1 PH—60 Hz
33 AMPS 35 AMPS
BOOSTER HEATER 5.3 kW 6.5 kW
WASH PUMP MOTOR ¾ HP ¾ HP
THIS SYSTEM REQUIRES THREE POWER WIRES, WHICH INCLUDES A
CURRENT CARRYING NEUTRAL. AN ADDITIONAL FOURTH WIRE MUST BE
PROVIDED FOR MACHINE GROUND.
SHIPPING WEIGHT 234# (106 kg)
* For machines having "SAFETY TEMP" feature. ** For faster heat recovery.
METRIC
EQUIVALENT

MODEL CMA-181GW INSTALLATION & OPERATION MANUAL Rev. 1.00 Page 3
1.2. CMA-181GW Operational Cycle
The CMA-181GW Operational Cycle has a total cycle time of 2 minutes (120 seconds). The
Timing Diagram and the steps listed below detail the individual functions that are executed
during each Operational Cycle.
Seconds: 0 10 20 30 40 50 60 70 80 90 100 110 120
1. With the machine powered up toggling the START switch begins a cycle.
a) Toggling the START switch energizes both the Cam Timer motor and the Instant Start
Relay. The Instant Start Relay latches ON the power to the Cam Timer motor so that
the START switch can be released a moment after it has been toggled without the Cam
Timer motor losing power.
b) After about 1.5 seconds the Cam Timer’s first cam—the Cam Timer Motor Cam—
latches ON the power to the Cam Timer motor and drops out the Instant Start Relay.
The Cam Timer motor continues to run for a total of 2 minutes, at which time it
switches OFF—resetting the Cam Timer—and waits for the next START command.
2. The Cam Timer’s third cam controls the Wash Pump. The Wash Pump comes ON about 3
seconds into the Operational Cycle and continues to run for 94 seconds. This 94-second
period is the Wash Cycle.
3. At the same time that the Wash Pump comes ON the Cam Timer’s fourth cam powers ON
the Optional Drain Pump—if one is present—and keeps it running for about 7 seconds
before powering OFF. This cam turns ON again midway through the Rinse Cycle and
stays ON for 10 seconds, turning OFF 2 seconds after the Rinse Cycle has completed.
4. About 3 seconds after the Wash Cycle has completed the Cam Timer’s second cam, which
controls the Rinse Cycle, turns ON—energizing the Water Solenoid—and stays ON for 16
seconds. This 16-second period is the Rinse Cycle.
Instant
Start Relay
Cam Timer
Motor Cam
Rinse Cycle
Cam
Wash Cycle
Cam
Optional Drain
Pump Cam
Safe-T-
Temp Cam

MODEL CMA-181GW INSTALLATION & OPERATION MANUAL Rev. 1.00 Page 4
5. When the cam timer assembly approaches the final rinse portion of the cycle, the “Safe-T-
Temp” sixth micro switch will pause cam timer assembly if the booster heater has not
reached 180 degrees. Machine will remain in wash cycle mode until 180-degree rinse
temperature is reached, and at this time the cam timer will advance automatically into the
rinse cycle and dispense 180 degrees rinse water over the dishes.

Getting Started
MODEL CMA-181GW INSTALLATION & OPERATION MANUAL Rev. 1.00 Page 5
2. Getting Started
2.1. Introduction to CMA-181GW
The CMA-181GW is a hot water sanitizing, single rack, under-counter glasswasher. It is a
standalone machine featuring a self-contained booster heater. The only external connections
necessary are power supply, water supply, drainpipe, and optional chemical dispensers. The
machine uses re-circulated wash water and fresh water final-rinse.
Operation of the CMA-181GW is extremely user friendly. To initially fill the machine each day,
push the switch marked “FILL”. The machine is full when water begins to flow into the scrap tray.
The booster tank heater will maintain the wash water temperature at 155°F. The booster heater
will produce a minimum of 180°F final rinse water each cycle.
The supply water to the CMA-181GW must be a minimum of 140°F at 24 PSI (Pounds per
Square Inch) with a 6 GPM (Gallons Per Minute) flow rate and 60 GPH (Gallons Per Hour)
recovery rate. The pipe supplying the water must be ½” minimum. The plumbing connection is
located at the back of the machine. (See specification sheet on page 2).
The drain is a 1" barbed fitting on the back of the machine for easy attachment of your drain
hose.
This manual is structured to provide a complete reference guide to the CMA-181GW. It is
presented in a manner that all users will be able to comprehend and use as an effective tool in
supporting the operation and maintenance of the glasswasher. The first section explains how the
machine is packaged and what to look for when receiving the machine.
After unpacking the machine, this manual explains how to install and set up the machine for use.
Requirements are given for plumbing, wiring, and space considerations. These attributes of the
machine are always taken into consideration by our well-trained sales representatives prior to the
order being placed. In the manual, guidance is also given for installation to ensure that the
machine will be able to run at optimum conditions.
The Operation Section of the manual may be used for instruction and procedures when required.
We make this portion of the manual easy to understand so that all levels of operators may be
able to read and comprehend the operation of the machine. The function of the machine itself is
mostly automatic and takes little training to put into full operation. The Operation Section also
includes diagnostic considerations for the machine when problems occur.
We are committed to providing the best machines and customer service in the food industry and
your feedback is welcome.
DISCLAIMER OF LIABILITY OF WARRANTY: CMA EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES, EXPRESS OR IMPLIED, RELATING TO THE INSTALLATION OF ANY AND ALL
CMA EQUIPMENT THAT IS INSTALLED BY CHEMICAL DEALERS, CONTRACTED SERVICERS OR THIRD PARTY SERVICERS TO CMA EQUIPMENT. IF THE INSTALLATION
INSTRUCTIONS ARE NOT FOLLOWED EXACTLY (TO THE LETTER), OR, IF ANY PERSON OR COMPANY CONDUCTING THE INSTALLATION OF THE CMA EQUIPMENT, REVISE THE
INSTALLATION PROCEDURES OR ALTER THE INSTRUCTIONS IN ANY MANNER, THE CMA WARRANTY BECOMES VOID. IF, DUE TO THE IMPROPER INSTALLATION OF CMA
EQUIPMENT, THIS EQUIPMENT CEASES TO OPERATE PROPERLY OR AFFECTS OTHER PARTS OF THE CMA DISHWASHING EQUIPMENT, IN THAT THE OTHER PARTS BECOME
DEFECTIVE, THE CMA WARRANTY BECOMES VOID. CMA WILL NOT BE LIABLE OR RESPONSIBLE OR WARRANT CMA EQUIPMENT, DUE TO IMPROPER INSTALLATION OF ANY
CMA MODEL GLASSWASHER.

MODEL CMA-181GW INSTALLATION & OPERATION MANUAL Rev. 1.00 Page 6
2.2. Receiving and Installation
The glasswasher is shipped from the factory in a corrugated box on a wooden pallet. The
installation guidelines give a systematic procedure for setting up the machine.
Start by removing the packaging material. Unwrap the machine and check for the following
component parts:
The Wash Tank Scrap Screen is shipped inside the wash cavity of the machine. This screen must
be in place during operation. It has been designed to perform two basic functions:
1. Strain water that is circulating through the spray arms and pump assembly.
2. A basket to catch broken glass, or heavy solids that may plug the impeller.
Set the machine in place, and level from side-to-side and front-to-back.
2.2.1. Electrical1
A 50-amp, single-phase 230 volt, 60 Hz dedicated circuit should be used to supply electrical
energy to the CMA-181GW glasswasher (see specification sheet page 2). This system requires
three power wires, which include a current carrying neutral. An additional fourth wire must be
provided for ground. CMA and local codes require the CMA-181GW to be hardwired using #8
AWG (90°C) copper wire (minimum). Approximately 4-feet of ¾” flexible conduit with power leads
(L-1, L-2, Neutral and Ground) extending out of the conduit are provided for easily connecting the
power at installation. The power connection must be located such that there is sufficient length of
the flexible conduit remaining to permit the machine to be moved for cleaning.
2.2.2. Plumbing2
The machine is equipped with a ½” NPT connection located at the lower left-hand corner (facing
the back) of the machine. A 140°F water line should be plumbed to this point (see specification
sheet page 2). The water line used must be of sufficient length and flexibility to permit the
machine to be moved for cleaning.
Important:
The supply water to the CMA-181GW must be a minimum of 140°F at 24 PSI (Pounds per
Square Inch) with a 6 GPM (Gallons Per Minute) flow rate and 60 GPH (Gallons Per Hour)
recovery rate. The pipe supplying the water must be ½” minimum. The plumbing connection is
located at the back of the machine. (See specification sheet on page 2).
This machine is equipped with Dema Valve and Dema Flow Disc which requires an
unrestricted water supply line minimum of ½”.
The CMA-181GW may be supplied with an optional drain pump for elevated drains. For floor
gravity drain applications the drain pump should not be used and a good commercial grade hose
needs to be connected to the discharge side of the diverter valve (drain valve) and run to the floor
drain. If a drain pump is used with a floor drain, the drain hose must rise 12 to 16” before
dropping to the floor drain (to reduce any chance of the pump cavitations).
Warning:
If the water hardness is greater than 6 grains per gallon, a water softener is required to
prevent damage to heating elements (scale build- up) and booster tank rinse flow restriction.
Rinse flow restriction will cause the booster tank to expand and contract causing metal flex, which
will eventually crack the tank.
1,2All electrical and plumbing connections must be made by a qualified person who will comply with
all available Federal, State, and Local Health, Electrical, Plumbing and Safety codes

MODEL CMA-181GW INSTALLATION & OPERATION MANUAL Rev. 1.00 Page 7
2.2.3. BETA Detergent And Rinse Dispenser.
Optional built-in Beta dispenser (CMA p/n 14585.00) has easy access for chemical settings
behind the front kick panel. Both initial charge and recharge are factory pre-set. Basic settings for
both detergent and rinse speed are 50%. Operating fine-adjustment screws on the dispenser can
control the amount of chemicals drawn into chemical lines.
Undercounter machine with the optional dispenser must be ordered separately, as option at time
of order. Optional dispenser has to be pre-wired prior to shipment (see electrical diagram for
wiring options).
2.2.4. Safe Ttemp Feature
The CMA “SafeTtemp” feature assures the final rinse cycle is always at a consistent minimum of
180 degrees.
How it works: the “SafeTtemp” function operates off the 5th cam (labeled “SafeTtemp”) on the
timer assembly. When the cam timer assembly completes the wash cycle, and approaches the
final rinse portion of the cycle, the “SafeTtemp” micro switch will drop into the cam slot and pause
cam timer assembly if the booster heater has not reached 180 degrees. Machine will remain in
wash cycle mode until 180 degree rinse temperature is met, and at this time the cam timer will
advance automatically into the rinse cycle and dispense 180 degrees rinse water over the dishes.
Note: if Safe Ttemp cam is not to be used, it becomes a spare cam.
CMA -180“SafeTtemp” Installation Instructions:
1) Remove the 4cam timer assembly (note wire colors and wire placement for all 4cam
timer micro switches
2) Place all wires removed from 4cam timer assembly in
) and install 5cam timer in its place.
exact position on 5cam timer
assembly.

MODEL CMA-181GW INSTALLATION & OPERATION MANUAL Rev. 1.00 Page 8
3) The cam timer motor receives (1) yellow wire and (1) white wire (re-connect the yellow
wire
4) The “SafeTtemp” 5 cam timer assembly kit includes a two white harness – connect white
wire with female bullet connector to the timer motor, stripped end to #22/NC on contactor,
and spade end to center terminal 5th micro switch.
only from glasswasher harness to the motor).
5) Connect white wire with male bullet connector from the kit to the white wire with female
bullet connector coming from glasswasher harness, stripped end to #21/NC on contactor,
and spade end to top terminal on 5th micro switch.
HEATER CONTACTOR
L1 L2 L3 A1
T1 T2 T3 A2
N/C
21
22
Dishmachine
harness
Female bullet
connector
Male bullet
connector
SafeTtemp
harness
Female bullet
connector
Male bullet
connector

MODEL CMA-181GW INSTALLATION & OPERATION MANUAL Rev. 1.00 Page 9
2.2.5. Booster Heater Setup
The booster tank must be filled with water before the heating element is energized.
For this reason the “High Limit Switch” has intentionally been disconnected at the
factory and will require re-connection before the heating element will turn on.
Follow the procedure below to complete the initial installation:
1. Close the door on the machine.
2. Turn the Power switch to the "ON" position.
3. Hold the “FILL” switch in until water overflows into the scrap tray.
4. Turn the Power switch to the "OFF" position.
5. Connect blue wire with disconnect, identified by red tag, to the High Limit
Switch which is located behind the thermostat behind the front kick panel.
2.2.6. Installers Checklist
Glasswasher checked for concealed damage
Hot water supply is 140° F (60 C) — minimum
Incoming water supply line is ½” — minimum
Incoming water supply is 6 GPM minimum at 24 PSI
Supply circuit breaker for machine is properly sized (50 amp)
Service voltage and phase type are correct to machine data plate
If drain pump is used, drain hose rises 12 to 16” before dropping to drain
Drain hose is installed with air gap (discharge 1” above drain)
Glasswasher is properly grounded
Glasswasher is properly leveled
Machine circuit breaker is labeled “GLASSWASHER”
Machine has been “hard-wired” with correctly sized wire
Booster tank has been filled with water (before High Limit Switch is reset)
High Limit Switch for heater has been reset (after Booster Tank has been filled)

Operation
MODEL CMA-181GW INSTALLATION & OPERATION MANUAL Rev. 1.00 Page 10
3. Operation
3.1. Initial Setup
3.1.1. Dema Valve and Dema Flow Disc.
New Dema Valve made of stainless steel is more compatible with various water
conditions. Dema Flow Disc has been placed on the exit side of the water valve.
The Flow Disc reduces pressure to the standard recommended 20 PSI.
3.1.2. Rinse and Wash Temperatures
1. Turn the Power switch to the "ON" position.
2. After the machine has warmed up for about ten-minutes, note the wash and
rinse temperatures. The wash temperature must be 155°F minimum. The
rinse temperature must be 180°F minimum3
3.1.3. Post Instructions
. If necessary, adjust the
temperatures by removing the front kick panel and turning the thermostat
adjustment clockwise to increase, counterclockwise to decrease. This one
adjustment controls both temperatures.
1. Install wall chart and instruct machine operator on proper cleaning and
operation of the CMA-181GW.
3.2. Startup Procedures
1. Open the door of the machine and check that the scrap screen is in place, and that
the spray arms and end plugs are secure.
2. Close the door of the machine and turn the Power switch to the "ON" position.
3. Hold the fill button about 25 seconds or until the water overflows into the scrap tray.
4. Once the water is filled to the proper level, press the rocker switch marked “START”
– the machine will automatically begin its cycle.
5. Check machine’s operating temperatures — Adjust if necessary. See section 3.1.2
Rinse and Wash Temperatures.
6. At the end of the wash period, drain the machine by pushing the rocker switch
marked “DRAIN”. Clean the wash tank screen and scrap tray screen. Remove and
clean the spray arms. (See wall chart instructions).
3 Rinse cycle temperature must be observed during a rinse cycle while the machine is in operation..

Operation
MODEL CMA-181GW INSTALLATION & OPERATION MANUAL Rev. 1.00 Page 11
3.3. Operating and Cleaning Instructions

Operation
MODEL CMA-181GW INSTALLATION & OPERATION MANUAL Rev. 1.00 Page 12
3.4. Preventive Maintenance Chart

Operation
MODEL CMA-181GW INSTALLATION & OPERATION MANUAL Rev. 1.00 Page 13
3.5. Quick service guide
MODEL: CMA 181GW HIGH TEMP UNDER COUNTER
TECHNICAL ISSUE
CAUSE
SOLUTION
Pressure regulator is not set properly
Set regulator to 18-20 psi
Faulty rinse micro switch Replace micro switch
Obstruction in drain hose Check hose & clean
Scrap exit screen Clean exit screen
Faulty drain pump Replace pump
Machine not level Adjust machine legs to level
Machine is leaning forward Adjust machine legs to level
Door leaks Wash arm end cap missing Replace end cap
Door gasket Replace gasket
Loose wire at display, board or
transformer
Secure connectors
Thermometer failure Faulty temperature sensing wire Correct, replace
Faulty temperature sensing unit Replace unit
Faulty transformer Replace transformer
Scaled heating element Clean scale from heater
Rinse water temperature low /high
Booster heater’s thermostat not
properly set
Adjust thermostat
Incoming water temperature to
booster heater below 140 F
Adjust external water heater in the facility
Loose lead connections Check and crimp connectors
Pump motor not running Faulty # 3 micro switch Replace micro switch
Faulty contactor Replace contactor
Faulty wash pump motor Replace wash pump motor
Pump motor runs continuously Faulty # 3 micro switch Replace micro switch
Faulty contactor Replace contactor
Water regulator not adjusted properly
Adjust regulator to 18-20 PSI
Low water pressure at the final rinse Clogged final rinse spray jets Clean jets
Missing final rinse spray end cap Replace end cap
Low incoming water pressure from
facility Increase pressure to 18-20 psi
Scrap trap overflows over night Faulty water solenoid diaphragm Clean or replace diaphragm
Low wash or rinse water temp. Check temperature settings
Poor cleaning results Wash arm bearing or jets Clean bearing and arm jets
Rinse arm bearing or jets Clean bearing and arm jets
Tank discharge screen dirty Clean screen
Wash tank will not drain. Drain valve not operating Check power to drain valve
Drain valve faulty Replace Drain valve

Operation
MODEL CMA-181GW INSTALLATION & OPERATION MANUAL Rev. 1.00 Page 14
3.6. Troubleshooting
PROBLEM LIKELY CAUSE SOLUTION
Machine inoperative Power off at circuit breaker Reset circuit breaker
Defective power switch Replace power switch
Motor inoperative Door is open Close door
Control panel is pulled out Secure control panel
Defective reed switch Replace reed switch
Defective timer assembly Replace timer assembly*
Defective pump motor contactor Replace contactor
Defective motor Replace motor
Motor runs with door open Defective reed switch Replace reed switch
Defective pump motor contactor Replace contactor
Heater (no heat) High limit switch opened or
defective Reset or replace switch
Defective thermostat Replace thermostat
Defective heater contactor Replace heater contactor
Defective heater Replace heater
Heater (never turns off) Defective thermostat Replace thermostat
Defective heater contactor Replace heater contactor
*The timer assembly motor or micro switches can be replaced independently if that’s the only
component that’s failed.

Operation
MODEL CMA-181GW INSTALLATION & OPERATION MANUAL Rev. 1.00 Page 15
PROBLEM LIKELY CAUSE SOLUTION
Low heat during operation Low incoming water temperature
(below 140° F) Turn up supply water heater
Insulate supply water pipe
Thermostat out of adjustment Adjust thermostat
Cold water mixing with supply Isolate hot water from cold
water
Defective heater Replace heater
Low rinse water pressure Pressure regulator out of
adjustment Adjust pressure regulator
Defective pressure gauge (actual
pressure is okay) Replace pressure gauge
Regulator at maximum but
rinse pressure still low Insufficient water supply flow Supply larger supply line
Defective water solenoid valve Replace water solenoid valve
Low rinse water flow Low rinse water pressure See “Low rinse water
pressure” in PROBLEM
column
Limed up rinse arm spray nozzles De-lime rinse arm nozzles
No rinse water flow Defective water solenoid valve Replace water solenoid valve
Defective (Rinse Relay) ice cube
relay Replace ice cube relay
Rinse water runs with door
open Defective reed switch Replace reed switch
Water overflows scrap tray
onto floor Drain hose is kinked Un-kink drain hose
Drain hose is not properly
elevated before dropping to drain
(if drain pump is used)
Elevate drain hose 12 to 16”
above pump before dropping
to drain
Defective timer assembly Replace timer assembly*
Defective drain pump
(if drain pump is used) Replace drain pump
With power on, activating
start switch does not begin
cycle
Defective start switch (cycle light
will not light either) Replace start switch
Defective timer assembly Replace timer assembly*
*The timer assembly motor or micro switches can be replaced independently if that’s the only
component that’s failed.

Operation
MODEL CMA-181GW INSTALLATION & OPERATION MANUAL Rev. 1.00 Page 16
PROBLEM LIKELY CAUSE SOLUTION
Start switch requires > 1
second activation to run
cycle
Defective (Instant Start) ice cube
relay Replace ice cube relay
Activating fill switch does
not fill machine Defective drain/fill switch Replace drain/fill switch
Defective water solenoid valve Replace water solenoid valve
Fill (rinse water) won’t shut
off Defective water solenoid valve Replace water solenoid valve
Defective drain/fill switch Replace drain/fill switch
Defective timer assembly Replace timer assembly*
Defective (Rinse Relay) ice cube
relay Replace ice cube relay
Activating drain switch
does not drain machine Drain hose is kinked Un-kink drain hose
Defective drain/fill switch Replace drain/fill switch
Defective drain valve Replace drain valve
Cycle light does not light
while cycle runs Defective cycle light Replace cycle light (green)
Power light does not light
but machine runs Defective power light Replace power light (red)
Wash tank or final rinse
temperature does not
display
Defective digital thermometer Replace digital thermometer
Both the wash tank
temperature and the final
rinse temperature do not
display
Defective thermometer
transformer Replace thermometer transformer
Wash tank or final rinse
displays wrong
temperature
Defective digital thermometer Replace digital thermometer
Defective thermister Replace thermister
*The timer assembly motor or micro switches can be replaced independently if that’s the only
component that’s failed.

MODEL CMA-181GW INSTALLATION & OPERATION MANUAL Rev. 1.00 Page 17
4. Parts Kit
4.1. Initial Parts Kit (P/N 1100.66)
P/N DESCRIPTION Qty
15504.00 Motor Contactor, 2-Pole 20 Amp 1
15504.50 Heater Contactor, 2-Pole 35 Amp 1
00501.00 2-Minute Timer Motor 1
00631.00 Ice Cube Relay 120 V 1
15523.00 Rocker Switch Start Momentary 1
15523.50 Rocker Switch Drain/Fill 1
15524.00 Rocker Switch Power Maintained 1
00556.10 Reed Switch 1
03623.00 1/2” Vacuum Breaker Repair Kit – Watts 1
00707.00 1/2” Water Solenoid Repair Kit – J/E 1
04113.00 L1X/L1-C Drain Valve 120V 1
00206.30 Pump Seal Kit 1
13417.89 Heater Thermostat 1
17523.60 High Limit Switch 200°F 1
00411.00 Microswitch 1
03202.66 Thermocouple (Control Products) 1
03604.30 Dema Valve Repair Kit 3/8",1/2" & 3/4
41015.60 Water Solenoid Coil Only 110V

Parts Manual
MODEL CMA-181GW INSTALLATION & OPERATION MANUAL Rev. 1.00 Page 18
5. Customer Notice
CMA-181GW Installation Guidelines
Improper installation of this product may void the warranty on this machine. Please follow
these guidelines for recommended installation and to ensure the warranty of this model is
authorized by CMA Glasswashers.
1. Machine
Glasswasher Installation Requirements
must
2. Drain height should not exceed maximum height of 16”. Connect supplied
drain line to 3-way valve on back of machine and gravity feed to the floor
drain.
be level. Adjust leveling feet to accommodate uneven floor
surfaces.
3. Check the Pressure. Recommended pressure is between 18-20 psi.
4. Water supply to machine must be a minimum 120°F for 3minute cycle
models and 140°F for 2 minute cycle models.
5. A four-wire, (neutral, ground and two 110v lines) 220v single phase
connection is required. There is a six foot cord provided with the machine.
CMA recommends a minimum 50-amp dedicated circuit, but you should
consult your local building code requirements for proper breaker size.
1. Booster heater
Activating/Adjusting the Booster Heater
must
2. Once the booster has been connected, the thermostat should be adjusted
to maintain 180°F during the final rinse cycle. The thermostat is located on
the front of the booster tank and is accessible by removing the front panel
on the machine.
be filled with water prior to connecting the blue wire
from high limit switch. The high limit switch can be found by removing the
front panel and locating the red button on the front of the heater tank.
1. Applications utilizing automated dispensers for administering warewash
chemicals must use 110v dispenser equipment. There is a 110v power
block for installing this equipment inside the control panel.
Automatic Dispensing Equipment

Electrical Diagram
MODEL CMA-181GW INSTALLATION & OPERATION MANUAL Rev. 1.00 Page 19
6. Electrical Diagram
181GW