Hoshizaki JWE-620UA-6B service manual X10

Page 22

b) Auxiliary Code A-1 and Later











200V from Transformer

Transformer

11V 7.7V



 

 

 

1 (CN1) 4

[Communication]

1

 

Operation Panel

2

 

Board

3

 

4

 

(Shielded Wire)

 

5

 

 

 

Wash Tank Thermistor

(CN5)

 

 

1

 

Internal Booster Tank Thermistor

2

 

3

 

 

 

 

4

 

 

(CN7)

 

 

1

 

 

2

XA

 

3

Buzzer Output

Connector

1

 

(CN11)

 

 

2

 

 

(CN10)

 

JWE-620UA-6B

1

 

Pins 1-4 shorted: 3 phase control

 

 

Pins 1-4 open: Booster Tank control

4

 

 

(CN6)

 

 

1

 

 

2

XH

 

3

 

Connector

 

(CN12)

 

 

 

1

 

2

(CN13)

1 (CN2) 6

[External

Relay]

 

X1

1

 

 

 

 

MC3

Booster Tank Heater

 

X2

 

 

3

 

 

 

 

MC1

Wash Tank Heater

 

 

 

 

X3

5

 

 

 

 

X10

Rinse Pump

 

 

 

 

X4

7

 

 

 

 

MC2

Wash Pump

 

 

 

 

X5

(CN3)

 

 

 

 

1

 

Water Valve

 

 

 

 

 

X6

 

 

 

 

X7

5

X13

 

 

 

External Rinse Agent Feeder

 

 

 

 

 

 

 

 

 

(CN4)

 

 

 

1

 

Wash Tank Electrode

 

2

 

(Water Level Sensor)

 

 

 

 

5

 

Door Switch

XA

6

 

 

Connector

 

(CN9)

 

Internal Booster Tank Water Level Float Switch

 

 

 

1

 

 

2

 

Internal Booster Tank Backup Water Level Float Switch

 

 

 

3

 

 

 

4

 

 

 

5

 

 

 

6

 

 

 

7

 

 

 

8

 

Phase Reversal Input

 

9

 

 

10

 

 

 

 

(CN8)

 

 

*1 Connectors CN 1 - 4 are VH Connectors

17

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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
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