Hoshizaki JWE-2400CUA-R-25B, JWE-24000CUA-L-25B service manual Thermistor Check

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E. Thermistor Check

If the error code “H1” “H2” “H3” or “H4” or an abnormal temperature [above 231°F (111°

C)or below -6°F (-21°C)] appears in the display, or the wash tank water boils, check the thermistor(s) according to the procedure below. If replacement is required, see “IV.H. Removal and Replacement of Thermistor.”

1)Use the “ON/OFF” button on the operation panel to turn off the unit, then turn off the dishwasher and booster tank power supplies. Lockout/Tagout to prevent the power supplies from being turned back on inadvertently.

2)Remove the front panel, then pull out the control box.

3)Remove the control box cover, then disconnect the CN7 connector from the control board (see “II.F.2. Control Board Layout”).

4)To check the wash tank thermistor, check the resistance across the white wires (#1 and #2). To check the booster tank thermistor, check the resistance across the pink wires (#3 and #4). See the table below for proper resistance and temperature relations.

Temperature [°F (°C)]

Resistance [kΩ]

194

(90)

4.30 to 4.62

176

(80)

5.87 to 6.38

158

(70)

8.13 to 8.96

140

(60)

11.5 to 12.8

104

(40)

24.3 to 28.0

68 (20)

56.3 to 67.1

32

(0)

145.6 to 180.6

5)If any problem is found, replace the thermistor according to “IV.H. Removal and Replacement of Thermistor.”

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Contents Model JWE-2400CUA-L-25B JWE-2400CUA-R-25B Hoshizaki AMERICA, INC Contents Page Indicates important information about the use and care Important Safety InformationSerious injury PropertyDishwasher Side Booster Side AC Supply Voltage Right to Left Nameplate Rating JWE-2400CUA-L-25B Dimensions/ConnectionsJWE-2400CUA-R-25B Dishwasher II. General Information A. ConstructionTop View Booster TankBox Sequence of Operation FunctionsIncreasing Rinse Water Flow Rate Page Emergency Stop Button Table Limit SwitchDrain Dishwasher Sequence Flow Chart JWE-2400CUA-25B Flow ChartAuto Fill ChartCycle Wash Cycle/Rinse Cycle Control Board Location Control Board and Operation BoardCN4 Control Board LayoutCN1 CN2 Control Board DiagramDisplay Service Menu and Error LogError Codes Water Temperature LampsWash Lamp Conveyor Speed SwitchService Menu Access Ready LampItem and Details Setting Range Display Service Menu ChartError Codes Temperature DisplayBuzzer Special Modes Continuous Wash ModeLow Water Temperature Lock Function Operation Time DisplayOFF Diagnostic Procedure III. Service DiagnosisSwitch Open/Closed Display Mode Page Error Code Table Error CodesError Code Log Auto Fill Error A1 Error Code DetailsPage Booster Tank Auto Fill Error A2 Wash Tank Water Level Error A3 Page Page Wash Tank Thermistor Error H1, H2 Booster Tank Thermistor Error H3, H4 Eeprom Error H6 ROM/RAM Error H5Conveyor Overload or Table Limit Error 1 L1 Conveyor Overload or Table Limit Error 2 L2 Booster Tank Error b1 Booster Tank Water Level Safety Error b2 Unit Will Not Start Service Flow ChartsSee III.B. Error Codes Replace Dishes Not Clean Page Inadequate Rinse Dishwasher will not start wash/rinse cycle Dishwasher Will Not Start Wash/Rinse CycleWash Tank Water Boils No or Inadequate Detergent/Rinse Aid SupplyWash Tank Water Not Draining Float Switch Check Float Switch Check and CleaningFloat Switch Cleaning Thermistor Check Removal and Replacement of Wash Pump Motors IV. Removal and Replacement of ComponentsRemoval of Panels Removal and Replacement of Rinse Pump Motor Rinse Pump Motor Page Removal and Replacement of Gear Motor Removal and Replacement of Conveyor Removal and Replacement of Crankshaft Removal and Replacement of Thermistor Removal and Replacement of Control BoxControl Board Removal and Replacement of Control Board or Operation BoardOperation Board Removal and Replacement of Heater Removal and Replacement of Float Switch Removal and Replacement of Thermostat Cleaning and Maintenance Instructions Daily Maintenance Wash the curtains Silverware Rack Rail Ring Install the curtain L in the wash compartment Exterior Weekly MaintenanceMonthly Inspection HeaterShutdown Descaling As RequiredService Panel Hook VI. Operating Instructions Long Storage, Relocation, Disposal, TransferVII. Technical Information Water Circuit Wiring Diagram
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JWE-2400CUA-R-25B, JWE-24000CUA-L-25B specifications

The Hoshizaki JWE-2400CUA-R-25B and JWE-24000CUA-L-25B are advanced ice machines designed to meet the diverse needs of commercial establishments requiring high volumes of ice. These state-of-the-art units combine innovative technology with energy efficiency, making them ideal for restaurants, hotels, bars, and other hospitality settings.

One of the main features of the JWE-2400CUA-R-25B is its high production capacity. This model can produce up to 2,400 pounds of ice in a 24-hour period, ensuring a continuous supply for busy operations. Similarly, the JWE-24000CUA-L-25B boasts an impressive production rate, accommodating even larger establishments. Both machines deliver crescent-shaped ice, which is favored for its rapid cooling properties and ease of use in beverages.

Energy efficiency is a highlight of both models. They are designed with environmentally friendly refrigerants, aligning with modern sustainability practices. These machines also incorporate advanced heat-exchange systems that maximize energy savings while maintaining optimal ice production. As a result, operators can enjoy significant reductions in energy costs without compromising on performance.

Durability and reliability are essential characteristics of the Hoshizaki JWE series. Constructed with high-quality materials, these units feature stainless steel exteriors that resist corrosion and wear, ensuring long-term operation in demanding environments. Additionally, the ice-making components are built to endure frequent use, allowing for consistent ice output over time.

The technology integrated into the JWE-2400CUA-R-25B and JWE-24000CUA-L-25B includes user-friendly digital controls that simplify operation and monitoring. These controls help operators track production levels, ice thickness, and machine status, allowing for proactive maintenance and reducing downtime. Furthermore, routine cleaning and maintenance are made straightforward, contributing to enhanced hygiene and overall ice quality.

In conclusion, the Hoshizaki JWE-2400CUA-R-25B and JWE-24000CUA-L-25B ice machines present a perfect blend of high capacity, energy efficiency, and durability. Their advanced features and technologies make them a reliable choice for any business requiring dependable ice production. With their user-friendly controls and robust design, these machines stand out as top contenders in the commercial ice maker market.
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