Hoshizaki JWE-620UA-6B service manual Removal and Replacement of Rinse Pump Motor

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6)Fill the tank with water, then check for water leaks from the joints. If there is a water leak, check the connections, and retighten the bands. If there are no water leaks, drain the tank. This inspection cannot detect water leaks from the flexible pipe and pipe joint connection.

7)Connect the wiring. When finished, cover the connections with the original plastic sheet cover and secure with a nylon tie. Make sure the connections are situated so that water and condensation cannot reach the connections.

Note: Be careful not to mix up the wire colors. Miswiring will cause reversal of the pump motor, resulting in improper operation.

8)Carefully slide the control box into its proper position.

9)Replace the front panel.

10)Make a trial run, and check for water leaks.

E.Removal and Replacement of Rinse Pump Motor

1)Move the power switch (GFCI) to the “OFF” position, then turn off the power supply. Lockout/Tagout to prevent the power from being turned back on inadvertently.

2)Remove the front panel.

3)Use the internal booster tank drain hose to drain the internal booster tank. WARNING!

To avoid possible burns, allow the internal booster tank water temperature to fall below 104°F (40°C) before draining.

4)Disconnect the rinse pump motor wiring at the closed end connectors.

5)Unscrew the internal booster tank rinse pipe, and remove the band from the pipe joint to release the internal booster tank rinse pipe.

6)Disconnect the flexible pipe from the rinse pump motor.

7)Remove the rinse pump motor.

8)To replace, reverse the above procedure. Note:

1.Be careful not to mix up the wire colors. Miswiring will cause reversal of the pump motor, resulting in improper operation.

2.Cover the connections with the original plastic sheet cover and secure with a nylon tie. Make sure the connections are situated so that water and condensation cannot reach the connections.

3.Be sure to use new O-rings and gaskets.

9)Make a trial run, and check for water leaks.

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Contents Model JWE-620UA-6B Hoshizaki AMERICA, INC Contents Page Important Safety Information Specifications Specification Sheet DisplayNameplate Rating Dimensions/Connections II. General Information A. Construction DishwasherInternal Booster Tank Control Box Auxiliary Code U-1, U-2, U-3, V-0, A-0Auxiliary Code A-1 and Later Auto Fill Cycle Sequence of OperationAuto Fill lamp flashing and RINSE, STANDARD, or Long lamp on Wash Cycle STANDBY/CLEANING Button Start Rinse CycleRinse lamp flashing DrainSequence of Operation Flow Chart Auxiliary Code A-1 and Later Control Board and Operation Board Control Board LocationControl Board Layout CN5Control Board Diagram CN9X10 Ready Lamp Error CodesMode Lamps Auto Fill LampService Menu Access Mode ButtonSTANDBY/CLEANING Button Standby LampService Menu Chart Auxiliary Code U-1, U-2, U-3, V-0, A-0 DefaultService Menu Chart Auxiliary Code A-1 and Later Temperature Display Buzzer Error CodesInternal Booster Tank Energy Saving Mode Special ModesConsecutive Rinse Mode Continuous Wash ModeAlert Function Auxiliary Code A-1 and Later OFF Diagnostic Procedure III. Service DiagnosisSwitch Open/Closed Display Mode Page Error Codes Error Code TableError Code Log Error Code Details Auto Fill Error A1Internal Booster Tank Auto Fill Error A2 Wash Tank Water Level Error A3 Defective Replace Control Board Repair or replace Replace Wash Tank Thermistor Error H1, H2 Internal Booster Tank Thermistor Error H3, H4 ROM/RAM Error H5 Eeprom Error H6Phase Reversal Error H7 Service Flow Charts Unit Will Not StartPage Dishes Not Clean Page Inadequate Rinse Dishwasher Will Not Start When Door Closed No or Inadequate Detergent/Rinse Aid Supply Wash Tank Water BoilsWash Tank Water Not Draining Float Switch Check Float Switch Check and CleaningFloat Switch Cleaning Thermistor Check Accessing the Control Box IV. Removal and Replacement of ComponentsRemoval of Panels Page Removal and Replacement of Internal Booster Tank Removal and Replacement of Wash Pump Motor Removal and Replacement of Rinse Pump Motor Removal and Replacement of Handle Removal and Replacement of Door Removal and Replacement of Spring Unit Removal and Replacement of SpringAdjustment of Door Opening/Closing Force Removal and Replacement of Flush Pipe Packing Installation Instructions Removal and Replacement of Thermistor Control Board Removal and Replacement of Control Board or Operation BoardOperation Board Page Cleaning and Maintenance Instructions Daily Maintenance Pump Filter Water Level Sensor Location Front Self-Cleaning Weekly Maintenance Monthly InspectionDescaling As Required Shutdown Long Storage, Relocation, Disposal, Transfer VI. Operating Instructions VII. Technical Information Water Circuit Wiring Diagram Auxiliary Code U-1, U-2, U-3, V-0, A-0Auxiliary Code A-1 and Later