Manuals / Hoshizaki / Kitchen Appliance / Dishwasher

Hoshizaki JWE-24000CUA-L-25B service manual JWE-2400CUA-R-25B, Units mm in

Models: JWE-2400CUA-R-25B JWE-24000CUA-L-25B

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2. JWE-2400CUA-R-25B

2. JWE-2400CUA-R-25B

Units: mm [in.]

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Hoshizaki JWE-24000CUA-L-25B service manual JWE-2400CUA-R-25B, Units mm in

Contents

DISHWASHER NO. J002-794 ISSUED APR. 1 REVISED SEPMODEL JWE-2400CUA-L-25B JWE-2400CUA-R-25B HOSHIZAKIAttn Hoshizaki Technical Support Department Complete and detailed explanation of the problemHOSHIZAKI AMERICA, INC 618 Highway 74 South Peachtree City, GA Phone 1-800-233-1940 Technical Support 770 487-2331 FaxCONTENTS B. Error Codes III. Service DiagnosisA. Diagnostic Procedure Error Code Tableserious injury Important Safety InformationIndicates a hazardous situation which could result in death or Indicates a situation which could result in damage to the unit orThermistor Control 182ºF83ºC-185ºF 85ºC NUMBER OF LARGE DISHES / RACKThermistor Control 163ºF73㩷C - 168㩷㪝76C DISHWASHER SIDE B. Nameplate Rating For certiﬁcation marks, see the nameplate on the dishwasherC. Dimensions/Connections 1. JWE-2400CUA-L-25B2. JWE-2400CUA-R-25B Units mm inWash Spray Arm stationary Wash Start Switch Service Panel Switch II. General Information A. Construction1. Dishwasher Vertically Sliding Service Panel Rack Flow Water Level SensorBackup Water Level Float Switch FS2 upward end 2. Booster TankWater Level Float Switch FS1 downward end Water Level Safety Float Switch FS3 downward end Thermistor TH2X14 Conveyor Drive Signal X11 Service Panel SwitchX12 Phase Reversal Relay Voltage Tap Switch1. Increasing Rinse Water Flow Rate B. FunctionsC. Sequence of Operation 1. Auto Fill Cycle3. Wash Cycle/Rinse Cycle 2. Ready Cycle Unit InactiveREADY lamp and RINSE TEMP. or WASH TEMP. lamp on WASH lamp and RINSE TEMP. or WASH TEMP. lamp on5. Emergency Stop Button 4. Table Limit Switch6. Drain D. Sequence of Operation Flow ChartDishwasher Sequence Flow Chart JWE-2400CUA-25B Cycle Steps1. Auto Fill ChartE. Timing CycleExtended Wash Cycle Time *30 sec 2. Wash Cycle/Rinse CycleDelay Time 0.5 sec Extended Rinse Cycle Time *15 secF. Control Board and Operation Board 1. Control Board Location2. Control Board Layout 3. Control Board Diagram 200VAC from Transformerc Error Codes 5. Featuresb Service Menu and Error Log 6. Controls, Adjustments, and Lampsa Service Menu Access i Conveyor Speed Switch7. Service Menu and Error Log c READY LampItem and Details b Service Menu ChartSetting Range Display9. Error Codes 8. Temperature Display10. Buzzer 12. Special Modes b Low Water Temperature Lock Function11. Operation Time Display a Continuous Wash Modefactory default Alert Function Setting FlowService Menu Set service menus 17 toA. Diagnostic Procedure III. Service DiagnosisSwitch Open/Closed Display Mode 3 Drain the booster tank through the drain hose 1 Use the “ON/OFF” button on the operation panel to turn off the unit2 Pull out the overﬂow pipe to drain the wash tank 4 Replace the overﬂow pipe and drain hose in their correct positionsError B. Error Codes1. Error Code Table Problem2. Error Code Log 3. Error Code Details a Auto Fill Error A1Sticking with float in “ON” position Continue Booster Tank Water Level Float SwitchCheck and clean. See “III.D. Float Switch Check and Cleaning.” Defective with internal contacts in “ON” positionb Booster Tank Auto Fill Error A2 c Wash Tank Water Level Error A3 Page Page f Wash Tank Thermistor Error H1, H2 H 1 / Hg Booster Tank Thermistor Error H3, H4 H 3 / Hh ROM/RAM Error H5 i EEPROM Error H6j 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 Unit will not start Problem Main Power Supply Emergency Stop Button C. Service Flow Charts1. Unit Will Not Start ON/OFF Button Power Failure No Water Supply Service PanelSee “III.B. Error Codes.” Replace Continue Transformer Wiring to Control Board Control BoardOpen coil winding Loose connections or open In alarm Defective ReplaceRemedy Clean Remove cause Clean tank filter 2. Dishes Not CleanDishes not clean Problem Low Wash Pump Output Wash Spray Arms Filter Stop using neutral cleaner Replace Clean Set in positionRaise setting or see “Heater Not Energized” Reset overheat thermostat Temperature too low Temperature will not rise Control output errorRefill or adjust detergent feeder Use specified detergent only Check input/output and repair or replace Replace Reset manuallyLow pump output Improperly loaded Temperature too low Too short 3. Inadequate RinseInadequate rinse Problem Low Rinse Pump Output Rinse Spray Arms Remedy Clean Clean Remove cause Replace Clean Set in position4. Dishwasher Will Not Start Wash/Rinse Cycle Dishwasher will not start wash/rinse cycleNo or inadequate detergent/rinse aid supply Problem 5. No or Inadequate Detergent/Rinse Aid Supply6. Wash Tank Water Boils Supply volume too lowOverflow Pipe 7. Wash Tank Water Not DrainingWash tank water not draining Problem Drain Hose Drain Pipe Possible Cause Clogged Pinched Raised Clogged1. Float Switch Check D. Float Switch Check and Cleaning2. Float Switch Cleaning E. Thermistor Check B. Removal and Replacement of Wash Pump Motors IV. Removal and Replacement of ComponentsA. Removal of Panels C. Removal and Replacement of Rinse Pump Motor 6 Disconnect the rinse pump motor wiring at the closed end connectors Booster Tank JWE-2400CUA-L-25B View without rinse pump motorBand Discharge PipeBracket Wash Tank Flinger Coupling Hexagon Socket Set Screw Nut D. Removal and Replacement of Gear MotorGear Motor Bracket Bolt E. Removal and Replacement of Conveyor F. Removal and Replacement of Crankshaft G. Removal and Replacement of Control Box H. Removal and Replacement of ThermistorI. Removal and Replacement of Control Board or Operation Board 1. Control BoardConnector Tube B Operation Board Tube A 2. Operation BoardStay - 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 Hook Rack Rail Ring21 Install the curtain L in the wash compartment 1. Heater B. Weekly MaintenanceC. Monthly Inspection 2. ExteriorD. Descaling As Required E. Shutdown2 Turn off the water heater 3 Turn off the gas and water supplies F. Long Storage, Relocation, Disposal, Transfer VI. Operating InstructionsVII. Technical Information A. Water Circuit B. Wiring Diagram