Trouble Shooting
(
Guide
CMA Dishmachines
12700 Knott Street
Garden Grove, CA. 92841
800) 854-6417
Table of Contents
Machine Will Not Start………………………….…….………...2
Wash Pump Runs – Timer Will Not Cycle………….………...3
Machine Cycles, Normal Wash Pump Will Not Run………...4
Machine Will Not Turn Off……………………………………...5
Dishwasher Will Not Drain, Drain Bill Not Lifting…………….6
Drain Will Not Close, Drain Ball Will Not Fall………………...7
Chemical Pumps Will Not Run …………………..….………...8
Machine Will Not Fill With Water – Machine Runs ………….9
Machine Only Fills During The Wash Cycle ………………..10
Machine Only Fills When Fill Switch is Used…………...…..11
Fill Valve Only Runs During the Wash Cycle……………....12
Machine Only Fills When Fill Switch is Used…………...….13
Fill Water Will Not Shut Off… ……………………………..…14
Wash Tank Heater Is Not Getting Hot……………………....15
Booster Heat Not Getting Hot (Final Rinse)……………...…16
Parts and Service Manuals Are Available At:
www.cmadishmachines.com/products.html
r
A
lways Set
To Normal
Machine Will Not Start
Normal/Off/Delime
Set to Normal Position
Safety Switch
Check Ice-cube
Check Start Micro
ON
Check
Check Door
Relay
Switch
Machine Will Not Start
Check Main Circuit Breaker
On/ Off
Reset Quick
Disconnect
Check Master-
Power Switch
No voltage
Washer Side
Replace Master-
Power Switch
Off
Reset Main
Breake
Parts and Service Manuals Are Available At:
www.cmadishmachines.com/products.html
y
y
Cycle of Operation:
Wash Pump Runs – Timer Will Not Cycle
Door Safety
Switch
Ice-cube
Ice-Cube
Relay
Replace
Relay
Ice-Cube
Relay
Start Micro
Switch
Machine Runs Normal Only
When The Start Switch is
Used, But Will Not Auto-Start
Check/Test Door
Safety Switch
Is There Voltage At
Switch Yes/No
Cycle Reset
Micro Switch
Check Start
Micro Switch
Cycle Reset
Ice-Cube
Rela
Ice-Cube
Relay Okay
Check
If Yes Replace
Door Safet
Switch
Parts and Service Manuals Are Available At:
www.cmadishmachines.com/products.html
r
r
A
r
Machine Cycles, Normal Wash Pump Will Not Run
No Voltage
Check wire
Connection
Check Ice-cube
Relay Red Wires
Check Ice-cube
Relay Red Wires
Machine Cycles, Normally But
Wash Pump Will Not Run
Check Voltage to Motor
Contactor
Brown to White Coil
Wires
Motor
Check Start
Micro Switch
Check Motor
Pause Micro
Switch
Brown Wires
To Top &
Middle
Terminals
contacto
Check Voltage
Black Wire on
Relay to Wire
Voltage Okay
Replace Motor
Contacto
Voltage Okay
No Voltage
Replace Relay
No Voltage
Check Voltage
t Wash Pump
Wires
Voltage Okay
Parts and Service Manuals Are Available At:
Check Wire
Connections
Replace Moto
y
y
y
r
Machine Will Not Turn Off
Timer Stops But Wash
Pump Stays Running
witch
Check Start Micro
Check Contactor
Replace If
Necessar
Machine Will Not Turn Off
Still
Running
Check
Rela
Replace If
Necessary
Check Start
Micro Switch
Timer Remains
Running
Disconnect
Red Wire(s)
Replace If
Necessary
Replace If
Necessar
Check Door
Switch
Change Motor
Contacto
Parts and Service Manuals Are Available At:
Dishwasher Will Not Drain, Drain Bill Not Lifting.
Dishwasher Will Not Drain
Drain Ball will Not Lift
Check drain
Switch Operation
Check Micro Switch
In Cam Timer
(Drain)
No Voltage
Check Drain
Micro Switch
Check Wire
Connections
Check
Ice-cube Relay
Check Voltage To:
Drain Solenoid,
Drain Valve, & Drain Pump
Drain Solenoid,
Drain Valve, or Drain Pump
Voltage
Check
Orange to White
Voltage Okay
Replace
Parts and Service Manuals Are Available At:
g
Drain Will Not Close, Drain Ball Will Not Fall
Drain Ball
Check Drain Ball
Chain For Kinks
Check Voltage to
Drain Solenoid
Replace
Drain Solenoid
Drain Will Not Close
Or
Drain Ball Will Not Fall
Check Solenoid
Alignment
And For
Build-up of Metal Dust
Or Debris
Drain Valve
Check Drain Sprin
Check
Drain Valve Motor
Check For Debris
Inside Drain Valve
Drain Valve Assembly
Replace
Parts and Service Manuals Are Available At:
Chemical Pumps Will Not Run
Check Voltage
Detergent
Cam In Timer
(Blue Wire)
Micro Switch
Chemical Pumps Will Not Run
Detergent-Rinse Aid-Sanitizer
Check Voltage
Rinse Aid
Check
Ice-Cube
Relay
Micro Switch
Cam In Timer
(Blue Wire)
Check Voltage
Sanitizer
Voltage Okay
Micro Switch
Cam In Timer
(Blue Wire)
Timer motor
Connections
Check
Replace
Detergent
Micro Switch
Replace
Rinse Aid
Micro Switch
Check/Replace
Prime Switch
Replace
Detergent
Micro Switch
Parts and Service Manuals Are Available At:
www.cmadishmachines.com/products.html
Replace
Sanitizer
Micro Switch
Replace
Rinse Aid
Micro Switch
Voltage Okay
Replace
Sanitizer
Micro Switch
Repair Wire
Connection as needed
Machine Will Not Fill With Water – Machine Runs
Machine Will Not Fill with Water
Machine Runs
Check Water Supply at Wall
Check Line Strainer in Ball Valve
Check Voltage at Water Valve Coil
Clean/Remove Debris
Replace Coil If Needed
To check Coil Without Meter: Remove coil From
Valve, Insert Screwdriver into Armature Hole of Coil.
Depress the Start-Fill Switch, a Magnetic Field Will
Check Diaphragm
Clean/ Debris
Replace
Diaphragm Kit
Plunger / Spring Kit
&
As Needed
Pull Screwdriver in.
If Screwdriver The Doesn’t Move
If Screwdriver Move’s
Check for poor Wire
Connection at
Spade Connector
Replace
Spade Connector
Or
Coil
As Needed
Parts and Service Manuals Are Available At:
Machine only Fills During The Wash Cycle
Fill Valve only Runs During the
Wash Cycle
Check Voltage to the Water Valve, at the
coil wires.
{Black & White Wires}
No Voltage
Replace
Fill Switch
Voltage Okay
Check
Wire Connections
Parts and Service Manuals Are Available At:
www.cmadishmachines.com/products.html
Machine Only Fills When Fill Switch is Used
Fills With Water Only
The Fill Switch is depressed
When
Check Voltage At Fill/Flush Micro Switch
&
Ice-Cube Relay
Black To white Wire On Timer Motor
No Voltage
Replace
Fill/Flush Micro Switch
Voltage Okay
Check
Wire Connections
Parts and Service Manuals Are Available At:
Fill Valve only Runs During the Wash Cycle Fill Valve only Runs During the Wash Cycle
Fill Valve only Runs During the
Wash Cycle
Check Voltage To The Water Valve, At The
Coil Wires.
{Black & White Wires}
Does Not Shut Off
Turn Off Master Switch
{Reconnect Black wire}
Replace
Fill/Flush Micro Switch
Voltage Okay
Check
Wire Connections
Parts and Service Manuals Are Available At:
www.cmadishmachines.com/products.html
Fill Water Will Not Shut Off
Valve Shuts Off
Disconnect Black Wire
From Fill Switch
(Turn Master Switch On)
Fill Water Will Not Shut
Turn Off
Master Switch
Valve Does Not Shuts Off
Replace Fill Valve Diaphragm,
Plunger, & Spring
Shut Off
Replace
Fill Switch
Replace
Fill Switch
No Voltage
Replace Fill Valve
Solenoid
Replace
Fill Switch
Parts and Service Manuals Are Available At:
www.cmadishmachines.com/products.html
Wash Tank Heater Is Not Getting Hot
{Rep
Wash Tank Heater Not
Turning On
No Voltage
Check Float Switch
Clean
&
lace If necessary}
Reset High-limit Switch
{Replace If Necessary}
Check
&
Check voltage At
Wash Tank Element
Voltage Okay
Check Heater Element
{Replace If Necessary}
{Replace If Necessary}
Check
Thermostat
Check
Wash Tank Heater Contactor
{Replace If Necessary}
Parts and Service Manuals Are Available At:
www.cmadishmachines.com/products.html
Booster Heat Not Getting Hot (Final Rinse)
(
)
r
{
ecessary}
(
)
{
ec
essary}
Check
Hi-Limit Switch
Check Thermostat
Replace
If N
Booster Heater Not
Getting Hot
Final Rinse Temp Low
Check Booster
Heater Contacto
Voltage to Coil
Yes
Check Voltage
At
(L-1, L-2, L-3)
Check
Heater Element
Test Element Coils
Using Continuity/Amp Draw
Replace
If N
Replace
Contactor
{If Necessary}
Parts and Service Manuals Are Available At:
www.cmadishmachines.com/products.html
Peace of
Mind
For More Information On How You Can Put The CMA Family
To Work For You Call:
(800) 854-6417
CMA Dishmachines
12700 Knott Street
Garden Grove, CA. 92841
(800) 854-6417
(714) 895-2141
www.cmadishmachines.com/products.html
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