Manuals / Hoshizaki / Kitchen Appliance / Dishwasher

Hoshizaki JWE-2400CUA-R-25B II. General Information A. Construction, Dishwasher, Wash Tank Heater

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

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II.General Information A. Construction

1. Dishwasher

The illustration below shows JWE-2400CUA-L-25B (left-to-right rack ﬂow).

Wash Spray Arm (stationary)

Wash Start Switch

Service Panel Switch

Conveyor Motor

Wash Tank (26 gallons)

Wash Tank Thermistor

Wash Tank Heater

Vertically Sliding

Service Panel

Rack Flow

Water Level Sensor

Wash Pump (Upper/Lower Spray Arm)

Rinse Pump

Operation Panel

Emergency Stop Button

Rinse Spray Arm (stationary)

Rinse Start Switch

Conveyor

Table Limit Switch

Booster Tank

Water Valve

Backup Water

Level Float Switch

Water Level Float Switch

Water Level Safety

Float Switch

Booster Tank Thermistor

Booster Tank Heater

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Hoshizaki JWE-2400CUA-R-25B II. General Information A. Construction, Dishwasher, Wash Tank Heater, Booster Tank Heater

Contents

HOSHIZAKI NO. J002-794 ISSUED APR. 1 REVISED SEPMODEL JWE-2400CUA-L-25B JWE-2400CUA-R-25B DISHWASHERPhone 1-800-233-1940 Technical Support 770 487-2331 Fax Complete and detailed explanation of the problemHOSHIZAKI AMERICA, INC 618 Highway 74 South Peachtree City, GA Attn Hoshizaki Technical Support DepartmentCONTENTS Error Code Table III. Service DiagnosisA. Diagnostic Procedure B. Error CodesIndicates a situation which could result in damage to the unit or Important Safety InformationIndicates a hazardous situation which could result in death or serious injuryThermistor Control 163ºF73㩷C - 168㩷㪝76C NUMBER OF LARGE DISHES / RACKThermistor Control 182ºF83ºC-185ºF 85ºC DISHWASHER SIDE For certiﬁcation marks, see the nameplate on the dishwasher B. Nameplate Rating1. JWE-2400CUA-L-25B C. Dimensions/ConnectionsUnits mm in 2. JWE-2400CUA-R-25BVertically Sliding Service Panel Rack Flow Water Level Sensor II. General Information A. Construction1. Dishwasher Wash Spray Arm stationary Wash Start Switch Service Panel SwitchWater Level Safety Float Switch FS3 downward end Thermistor TH2 2. Booster TankWater Level Float Switch FS1 downward end Backup Water Level Float Switch FS2 upward endVoltage Tap Switch X11 Service Panel SwitchX12 Phase Reversal Relay X14 Conveyor Drive Signal1. Auto Fill Cycle B. FunctionsC. Sequence of Operation 1. Increasing Rinse Water Flow RateWASH lamp and RINSE TEMP. or WASH TEMP. lamp on 2. Ready Cycle Unit InactiveREADY lamp and RINSE TEMP. or WASH TEMP. lamp on 3. Wash Cycle/Rinse Cycle6. Drain 4. Table Limit Switch5. Emergency Stop Button Cycle Steps Flow ChartDishwasher Sequence Flow Chart JWE-2400CUA-25B D. Sequence of OperationCycle ChartE. Timing 1. Auto FillExtended Rinse Cycle Time *15 sec 2. Wash Cycle/Rinse CycleDelay Time 0.5 sec Extended Wash Cycle Time *30 sec1. Control Board Location F. Control Board and Operation Board2. Control Board Layout 200VAC from Transformer 3. Control Board Diagram6. Controls, Adjustments, and Lamps 5. Featuresb Service Menu and Error Log c Error Codesc READY Lamp i Conveyor Speed Switch7. Service Menu and Error Log a Service Menu AccessDisplay b Service Menu ChartSetting Range Item and Details10. Buzzer 8. Temperature Display9. Error Codes a Continuous Wash Mode b Low Water Temperature Lock Function11. Operation Time Display 12. Special ModesSet service menus 17 to Alert Function Setting FlowService Menu factory defaultSwitch Open/Closed Display Mode III. Service DiagnosisA. Diagnostic Procedure 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 unit2 Pull out the overﬂow pipe to drain the wash tank 3 Drain the booster tank through the drain hoseProblem B. Error Codes1. Error Code Table Error2. Error Code Log a Auto Fill Error A1 3. Error Code DetailsDefective with internal contacts in “ON” position Continue Booster Tank Water Level Float SwitchCheck and clean. See “III.D. Float Switch Check and Cleaning.” Sticking with float in “ON” positionb Booster Tank Auto Fill Error A2 c Wash Tank Water Level Error A3 Page Page H 1 / H f Wash Tank Thermistor Error H1, H2H 3 / H g Booster Tank Thermistor Error H3, H4i EEPROM Error H6 h ROM/RAM Error H5j 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 Charts1. Unit Will Not Start Unit will not start Problem Main Power Supply Emergency Stop ButtonReplace Continue Transformer Wiring to Control Board Control BoardOpen coil winding Loose connections or open In alarm Defective See “III.B. Error Codes.” ReplaceStop using neutral cleaner Replace Clean Set in position 2. Dishes Not CleanDishes not clean Problem Low Wash Pump Output Wash Spray Arms Filter Remedy Clean Remove cause Clean tank filterCheck input/output and repair or replace Replace Reset manually Temperature too low Temperature will not rise Control output errorRefill or adjust detergent feeder Use specified detergent only Raise setting or see “Heater Not Energized” Reset overheat thermostatRemedy Clean Clean Remove cause Replace Clean Set in position 3. Inadequate RinseInadequate rinse Problem Low Rinse Pump Output Rinse Spray Arms Low pump output Improperly loaded Temperature too low Too shortDishwasher will not start wash/rinse cycle 4. Dishwasher Will Not Start Wash/Rinse CycleSupply volume too low 5. No or Inadequate Detergent/Rinse Aid Supply6. Wash Tank Water Boils No or inadequate detergent/rinse aid supply ProblemPossible Cause Clogged Pinched Raised Clogged 7. Wash Tank Water Not DrainingWash tank water not draining Problem Drain Hose Drain Pipe Overflow Pipe2. Float Switch Cleaning D. Float Switch Check and Cleaning1. Float Switch Check E. Thermistor Check A. Removal of Panels IV. Removal and Replacement of ComponentsB. Removal and Replacement of Wash Pump Motors 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 motorBand Booster TankGear Motor Bracket Bolt D. Removal and Replacement of Gear MotorBracket Wash Tank Flinger Coupling Hexagon Socket Set Screw Nut E. Removal and Replacement of Conveyor F. Removal and Replacement of Crankshaft H. Removal and Replacement of Thermistor G. Removal and Replacement of Control Box1. Control Board I. Removal and Replacement of Control Board or Operation BoardStay - OP Joint - Operation B Operation Panel B Cable - Operation 2. Operation BoardConnector Tube B Operation Board Tube A 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 Hook21 Install the curtain L in the wash compartment 2. Exterior B. Weekly MaintenanceC. Monthly Inspection 1. HeaterE. Shutdown D. Descaling As Required2 Turn off the water heater 3 Turn off the gas and water supplies VI. Operating Instructions F. Long Storage, Relocation, Disposal, TransferVII. Technical Information A. Water Circuit B. Wiring Diagram