Hoshizaki JWE-620UA-6B service manual Weekly Maintenance, Monthly Inspection

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5)Close the door. “SC” and the “AUTO FILL” lamp start flashing, and the self-cleaning cycle begins. The buzzer sounds and the operation panel turns off when the cycle ends. Move the power switch (GFCI) to the “OFF” position. Turn off the water heater, and the gas and water supplies.

6)Open the door, and remove the upper and lower rinse spray arms. Go on to step 8) of “V.A. Daily Maintenance.”

C.Weekly Maintenance

1. Heater

WARNING

To prevent burns, wait for 10 minutes after draining the unit to clean the interior.

Remove any scraps from the heater, and

 

use a soft brush to wash off residue.

 

2. Exterior

Heater

 

Soft Brush

Do not use a metal brush which may damage the surface.

1)Wipe the exterior with a soft cloth.

2)Use a damp cloth containing a neutral cleaner to wipe off dirt. Then wipe away the residue with a clean cloth.

3. Wash Compartment

1) Tilt back the rack rail, and lift it off the notch.

2) Remove any scraps from the wash tank.

D. Monthly Inspection

1. Power Switch (Ground Fault Circuit Interrupter)

1)Open the cover at the front, and move the power switch (GFCI) to the “ON” position.

2)Press the test switch. The power switch (GFCI) should switch from “ON” to “OFF”.

3)If not, move the power switch (GFCI) to the “OFF” position, and contact an authorized Hoshizaki service company.

2. Water Supply Line

Check the water supply line for damage, deformation, or water leak marks (stains). If any of these conditions are found, contact an authorized Hoshizaki service company.

ON

OFF Test Switch

Water Heater

Damage, deformation or water leaks

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Contents Model JWE-620UA-6B Hoshizaki AMERICA, INC Contents Page Important Safety Information Display Specifications Specification SheetNameplate Rating Dimensions/Connections Dishwasher II. General Information A. ConstructionInternal Booster Tank Auxiliary Code U-1, U-2, U-3, V-0, A-0 Control BoxAuxiliary Code A-1 and Later Auto Fill lamp flashing and RINSE, STANDARD, or Long lamp on Sequence of OperationAuto Fill Cycle Wash Cycle Rinse Cycle STANDBY/CLEANING Button StartDrain Rinse lamp flashingSequence of Operation Flow Chart Auxiliary Code A-1 and Later Control Board Location Control Board and Operation BoardCN5 Control Board LayoutCN9 Control Board DiagramX10 Auto Fill Lamp Error CodesMode Lamps Ready LampStandby Lamp Mode ButtonSTANDBY/CLEANING Button Service Menu AccessDefault Service Menu Chart Auxiliary Code U-1, U-2, U-3, V-0, A-0Service Menu Chart Auxiliary Code A-1 and Later Temperature Display Special Modes Error CodesInternal Booster Tank Energy Saving Mode BuzzerAlert Function Auxiliary Code A-1 and Later Continuous Wash ModeConsecutive Rinse Mode OFF Switch Open/Closed Display Mode III. Service DiagnosisDiagnostic Procedure Page Error Code Table Error CodesError Code Log Auto Fill Error A1 Error Code DetailsInternal 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 Eeprom Error H6 ROM/RAM Error H5Phase Reversal Error H7 Unit Will Not Start Service Flow ChartsPage Dishes Not Clean Page Inadequate Rinse Dishwasher Will Not Start When Door Closed Wash Tank Water Boils No or Inadequate Detergent/Rinse Aid SupplyWash Tank Water Not Draining Float Switch Cleaning Float Switch Check and CleaningFloat Switch Check Thermistor Check Removal of Panels IV. Removal and Replacement of ComponentsAccessing the Control Box 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 Removal and Replacement of Spring UnitAdjustment of Door Opening/Closing Force Removal and Replacement of Flush Pipe Packing Installation Instructions Removal and Replacement of Thermistor Operation Board Removal and Replacement of Control Board or Operation BoardControl Board Page Cleaning and Maintenance Instructions Daily Maintenance Pump Filter Water Level Sensor Location Front Self-Cleaning Monthly Inspection Weekly MaintenanceDescaling As Required Shutdown Long Storage, Relocation, Disposal, Transfer VI. Operating Instructions VII. Technical Information Water Circuit Auxiliary Code U-1, U-2, U-3, V-0, A-0 Wiring DiagramAuxiliary Code A-1 and Later