HOSHIZAKI
NO. J002-794 ISSUED APR. 1 REVISED SEP
MODEL JWE-2400CUA-L-25B JWE-2400CUA-R-25B
DISHWASHER
Phone 1-800-233-1940 Technical Support 770 487-2331 Fax
Complete and detailed explanation of the problem
HOSHIZAKI AMERICA, INC 618 Highway 74 South Peachtree City, GA
Attn Hoshizaki Technical Support Department
CONTENTS
Error Code Table
III. Service Diagnosis
A. Diagnostic Procedure
B. Error Codes
Indicates a situation which could result in damage to the unit or
Important Safety Information
Indicates a hazardous situation which could result in death or
serious injury
Thermistor Control 182ºF83ºC-185ºF 85ºC
NUMBER OF LARGE DISHES / RACK
Thermistor Control 163ºF73㩷C - 168㩷㪝76C
DISHWASHER SIDE
For certification marks, see the nameplate on the dishwasher
B. Nameplate Rating
1. JWE-2400CUA-L-25B
C. Dimensions/Connections
Units mm in
2. JWE-2400CUA-R-25B
Vertically Sliding Service Panel Rack Flow Water Level Sensor
II. General Information A. Construction
1. Dishwasher
Wash Spray Arm stationary Wash Start Switch Service Panel Switch
Water Level Safety Float Switch FS3 downward end Thermistor TH2
2. Booster Tank
Water Level Float Switch FS1 downward end
Backup Water Level Float Switch FS2 upward end
Voltage Tap Switch
X11 Service Panel Switch
X12 Phase Reversal Relay
X14 Conveyor Drive Signal
1. Auto Fill Cycle
B. Functions
C. Sequence of Operation
1. Increasing Rinse Water Flow Rate
WASH lamp and RINSE TEMP. or WASH TEMP. lamp on
2. Ready Cycle Unit Inactive
READY lamp and RINSE TEMP. or WASH TEMP. lamp on
3. Wash Cycle/Rinse Cycle
5. Emergency Stop Button
4. Table Limit Switch
6. Drain
Cycle Steps
Flow Chart
Dishwasher Sequence Flow Chart JWE-2400CUA-25B
D. Sequence of Operation
Cycle
Chart
E. Timing
1. Auto Fill
Extended Rinse Cycle Time *15 sec
2. Wash Cycle/Rinse Cycle
Delay Time 0.5 sec
Extended Wash Cycle Time *30 sec
1. Control Board Location
F. Control Board and Operation Board
2. Control Board Layout
200VAC from Transformer
3. Control Board Diagram
6. Controls, Adjustments, and Lamps
5. Features
b Service Menu and Error Log
c Error Codes
c READY Lamp
i Conveyor Speed Switch
7. Service Menu and Error Log
a Service Menu Access
Display
b Service Menu Chart
Setting Range
Item and Details
9. Error Codes
8. Temperature Display
10. Buzzer
a Continuous Wash Mode
b Low Water Temperature Lock Function
11. Operation Time Display
12. Special Modes
Set service menus 17 to
Alert Function Setting Flow
Service Menu
factory default
A. Diagnostic Procedure
III. Service Diagnosis
Switch Open/Closed Display Mode
4 Replace the overflow pipe and drain hose in their correct positions
1 Use the “ON/OFF” button on the operation panel to turn off the unit
2 Pull out the overflow pipe to drain the wash tank
3 Drain the booster tank through the drain hose
Problem
B. Error Codes
1. Error Code Table
Error
2. Error Code Log
a Auto Fill Error A1
3. Error Code Details
Defective with internal contacts in “ON” position
Continue Booster Tank Water Level Float Switch
Check and clean. See “III.D. Float Switch Check and Cleaning.”
Sticking with float in “ON” position
b Booster Tank Auto Fill Error A2
c Wash Tank Water Level Error A3
Page
Page
H 1 / H
f Wash Tank Thermistor Error H1, H2
H 3 / H
g Booster Tank Thermistor Error H3, H4
i EEPROM Error H6
h ROM/RAM Error H5
j Conveyor Overload or Table Limit Error 1 L1
k Conveyor Overload or Table Limit Error 2 L2
l Booster Tank Error b1
m Booster Tank Water Level Safety Error b2
ON/OFF Button Power Failure No Water Supply Service Panel
C. Service Flow Charts
1. Unit Will Not Start
Unit will not start Problem Main Power Supply Emergency Stop Button
Replace
Continue Transformer Wiring to Control Board Control Board
Open coil winding Loose connections or open In alarm Defective
See “III.B. Error Codes.” Replace
Stop using neutral cleaner Replace Clean Set in position
2. Dishes Not Clean
Dishes not clean Problem Low Wash Pump Output Wash Spray Arms Filter
Remedy Clean Remove cause Clean tank filter
Check input/output and repair or replace Replace Reset manually
Temperature too low Temperature will not rise Control output error
Refill or adjust detergent feeder Use specified detergent only
Raise setting or see “Heater Not Energized” Reset overheat thermostat
Remedy Clean Clean Remove cause Replace Clean Set in position
3. Inadequate Rinse
Inadequate rinse Problem Low Rinse Pump Output Rinse Spray Arms
Low pump output Improperly loaded Temperature too low Too short
Dishwasher will not start wash/rinse cycle
4. Dishwasher Will Not Start Wash/Rinse Cycle
Supply volume too low
5. No or Inadequate Detergent/Rinse Aid Supply
6. Wash Tank Water Boils
No or inadequate detergent/rinse aid supply Problem
Possible Cause Clogged Pinched Raised Clogged
7. Wash Tank Water Not Draining
Wash tank water not draining Problem Drain Hose Drain Pipe
Overflow Pipe
1. Float Switch Check
D. Float Switch Check and Cleaning
2. Float Switch Cleaning
E. Thermistor Check
B. Removal and Replacement of Wash Pump Motors
IV. Removal and Replacement of Components
A. Removal of Panels
C. Removal and Replacement of Rinse Pump Motor
6 Disconnect the rinse pump motor wiring at the closed end connectors
Discharge Pipe
JWE-2400CUA-L-25B View without rinse pump motor
Band
Booster Tank
Bracket Wash Tank Flinger Coupling Hexagon Socket Set Screw Nut
D. Removal and Replacement of Gear Motor
Gear Motor Bracket Bolt
E. Removal and Replacement of Conveyor
F. Removal and Replacement of Crankshaft
H. Removal and Replacement of Thermistor
G. Removal and Replacement of Control Box
1. Control Board
I. Removal and Replacement of Control Board or Operation Board
Connector Tube B Operation Board Tube A
2. Operation Board
Stay - OP Joint - Operation B Operation Panel B Cable - Operation
J. Removal and Replacement of Heater
K. Removal and Replacement of Float Switch
L. Removal and Replacement of Thermostat
V. Cleaning and Maintenance Instructions A. Daily Maintenance
7 Remove the separators
14 Replace the separators in their correct positions
Rack Rail Ring
Hook
21 Install the curtain L in the wash compartment
2. Exterior
B. Weekly Maintenance
C. Monthly Inspection
1. Heater
E. Shutdown
D. Descaling As Required
2 Turn off the water heater 3 Turn off the gas and water supplies
VI. Operating Instructions
F. Long Storage, Relocation, Disposal, Transfer
VII. Technical Information A. Water Circuit
B. Wiring Diagram