MODEL JWE-2400CUA-L-25B JWE-2400CUA-R-25B
NO. J002-794 ISSUED APR. 1 REVISED SEP
DISHWASHER
HOSHIZAKI
HOSHIZAKI AMERICA, INC 618 Highway 74 South Peachtree City, GA
Complete and detailed explanation of the problem
Attn Hoshizaki Technical Support Department
Phone 1-800-233-1940 Technical Support 770 487-2331 Fax
CONTENTS
A. Diagnostic Procedure
III. Service Diagnosis
B. Error Codes
Error Code Table
Indicates a hazardous situation which could result in death or
Important Safety Information
serious injury
Indicates a situation which could result in damage to the unit or
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
1. Dishwasher
II. General Information A. Construction
Wash Spray Arm stationary Wash Start Switch Service Panel Switch
Vertically Sliding Service Panel Rack Flow Water Level Sensor
Water Level Float Switch FS1 downward end
2. Booster Tank
Backup Water Level Float Switch FS2 upward end
Water Level Safety Float Switch FS3 downward end Thermistor TH2
X12 Phase Reversal Relay
X11 Service Panel Switch
X14 Conveyor Drive Signal
Voltage Tap Switch
C. Sequence of Operation
B. Functions
1. Increasing Rinse Water Flow Rate
1. Auto Fill Cycle
READY lamp and RINSE TEMP. or WASH TEMP. lamp on
2. Ready Cycle Unit Inactive
3. Wash Cycle/Rinse Cycle
WASH lamp and RINSE TEMP. or WASH TEMP. lamp on
5. Emergency Stop Button
4. Table Limit Switch
6. Drain
Dishwasher Sequence Flow Chart JWE-2400CUA-25B
Flow Chart
D. Sequence of Operation
Cycle Steps
E. Timing
Chart
1. Auto Fill
Cycle
Delay Time 0.5 sec
2. Wash Cycle/Rinse Cycle
Extended Wash Cycle Time *30 sec
Extended Rinse Cycle Time *15 sec
1. Control Board Location
F. Control Board and Operation Board
2. Control Board Layout
200VAC from Transformer
3. Control Board Diagram
b Service Menu and Error Log
5. Features
c Error Codes
6. Controls, Adjustments, and Lamps
7. Service Menu and Error Log
i Conveyor Speed Switch
a Service Menu Access
c READY Lamp
Setting Range
b Service Menu Chart
Item and Details
Display
9. Error Codes
8. Temperature Display
10. Buzzer
11. Operation Time Display
b Low Water Temperature Lock Function
12. Special Modes
a Continuous Wash Mode
Service Menu
Alert Function Setting Flow
factory default
Set service menus 17 to
A. Diagnostic Procedure
III. Service Diagnosis
Switch Open/Closed Display Mode
2 Pull out the overflow pipe to drain the wash tank
1 Use the “ON/OFF” button on the operation panel to turn off the unit
3 Drain the booster tank through the drain hose
4 Replace the overflow pipe and drain hose in their correct positions
1. Error Code Table
B. Error Codes
Error
Problem
2. Error Code Log
a Auto Fill Error A1
3. Error Code Details
Check and clean. See “III.D. Float Switch Check and Cleaning.”
Continue Booster Tank Water Level Float Switch
Sticking with float in “ON” position
Defective with internal contacts 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
1. Unit Will Not Start
C. Service Flow Charts
Unit will not start Problem Main Power Supply Emergency Stop Button
ON/OFF Button Power Failure No Water Supply Service Panel
Open coil winding Loose connections or open In alarm Defective
Continue Transformer Wiring to Control Board Control Board
See “III.B. Error Codes.” Replace
Replace
Dishes not clean Problem Low Wash Pump Output Wash Spray Arms Filter
2. Dishes Not Clean
Remedy Clean Remove cause Clean tank filter
Stop using neutral cleaner Replace Clean Set in position
Refill or adjust detergent feeder Use specified detergent only
Temperature too low Temperature will not rise Control output error
Raise setting or see “Heater Not Energized” Reset overheat thermostat
Check input/output and repair or replace Replace Reset manually
Inadequate rinse Problem Low Rinse Pump Output Rinse Spray Arms
3. Inadequate Rinse
Low pump output Improperly loaded Temperature too low Too short
Remedy Clean Clean Remove cause Replace Clean Set in position
Dishwasher will not start wash/rinse cycle
4. Dishwasher Will Not Start Wash/Rinse Cycle
6. Wash Tank Water Boils
5. No or Inadequate Detergent/Rinse Aid Supply
No or inadequate detergent/rinse aid supply Problem
Supply volume too low
Wash tank water not draining Problem Drain Hose Drain Pipe
7. Wash Tank Water Not Draining
Overflow Pipe
Possible Cause Clogged Pinched Raised Clogged
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
Band
JWE-2400CUA-L-25B View without rinse pump motor
Booster Tank
Discharge Pipe
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
C. Monthly Inspection
B. Weekly Maintenance
1. Heater
2. Exterior
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