Hoshizaki KMS-1401MLJ service manual Diagnostic Charts, No Ice Production Possible Cause

Page 40

F. Diagnostic Charts

1. No Ice Production

No Ice Production - Possible Cause

1. Power Supply

a) Off, blown fuse, or tripped breaker.

 

 

 

b) Not within specifications.

 

 

2. Main Transformer

a) Voltage tap switch not set to proper voltage.

(208-230VAC/115VAC) (3 Phase

b) Coil winding open or shorted.

Only)

 

3. Water Supply

a) Water supply off or improper water pressure.

 

 

 

b) External water filters clogged.

 

 

4. Fuse (SRK Control Box)

a) Blown.

 

 

5. High-Pressure Switch (SRK)

a) Dirty condenser.

 

b) Condensing unit fan(s) not operating.

 

c) Headmaster (C.P.R.) open.

 

 

 

d) Refrigerant overcharged.

 

 

 

e) Bad contacts.

 

 

 

f) Refrigerant lines or components plugged.

6. Discharge Line Thermostat

a) Ambient temperature too warm.

(SRK)

 

b) Compressor or compressor components faulty.

 

 

 

 

c) Defective.

 

 

 

d) Hot gas valves open.

 

e) Dirty condenser.

 

 

 

f) Condensing unit fan not operating.

 

 

7. Wire Harness

a) Disconnected or loose connection.

(From SRK to KMS)

 

 

 

8. Fuse (KMS Switch Box)

a) Blown.

9. Control Switch

a) In "SERVICE" or "OFF" position.

 

 

 

b) Bad contacts.

 

 

10. Control Transformer

a) Coil winding open or shorted.

(115VAC/10.5VAC)

 

 

 

11. Control Board

a) In alarm.

See "IV.B. Control Board Check"

b) Yellow "BC OPEN" LED on (bin full).

 

 

 

c) Defective.

 

 

12. Bin Control

a) Tripped with bin filled with ice.

See "IV.C. Bin Control Check and

 

b) Actuator does not move freely.

Cleaning"

 

c) Defective.

 

 

 

13. Fill/Refill or Harvest Water Valve

a) Screen or orifice clogged.

 

 

 

b) Coil winding open.

 

 

 

c) Water valve open in freeze cycle.

14. Float Switch

a) Float does not move freely.

See "IV.D. Float Switch Check

b) Defective.

and Cleaning"

 

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Contents Modular Crescent Cuber Serenity Series Model Hoshizaki AMERICA, INC Contents Page Important Safety Information For KMS For SRKSpecifications Icemaker KMS-1401MLJ with SRK-14JData Pending KMS-1401MLJ with SRK-14J3Condensing Unit SRK-14JSRK-14J3 II. General Information Construction IcemakerCondensing Unit Sequence of Operation Sequence Cycles and ShutdownMinute Fill Cycle Initial Harvest CycleS4 Dip Switch Setting Pump-Out 1st Pump-Out Frequency Pump-Out CycleHarvest Cycle ShutdownFlow SequenceControl Board Control Board Layout Control BoardLED Lights and Audible Alarm Safeties No. of Beeps Type of Alarm Every 3 secSequence Step Energized Time LEDs are On Components Min Max AvgControls and Adjustments Default Dip Switch SettingsS4 Dip Switch Harvest Timer S4 dip switch 1Pump-Out Frequency Control S4 dip switch 5 Pump-Out Timer S4 dip switch 3S4 Dip Switch Setting Time seconds Inlet Water Valve Harvest Pump Timer S4 dip switch Factory Use S4 dip switchFreeze Timer S4 dip switch 9 S4 Dip Switch Setting Pump Motor Time secondsFloat Switch Selector S5 dip switch Refill Counter S5 dip switch 2 throughS5 Dip Switch Setting No. of Refills No.4 RefillControl and Service Switches DrainCirc WashIII Transformer 10.5V at Wiring DiagramsControl Output Control Transformer Output 10.5V atWire Harness Connections Wire Harness ConnectionsSRK Condensing Unit KMS Icemaker Unit factory connectedPerformance Data Production PER 24 HRData Pending IV. Service Diagnosis Diagnostic ProcedurePage Page Page Control Board Check Bin Control Check and Cleaning Bin Control CheckBin Control Cleaning Float Switch Check and Cleaning Float Switch CheckFloat Switch Cleaning Thermistor Check No Ice Production Diagnostic ChartsNo Ice Production Possible Cause Freeze-Up Freeze-Up Possible Cause Harvest CycleFreeze-Up Possible Cause Freeze CycleLow Ice Production Possible Cause Long Harvest Cycle Low Ice ProductionLong Freeze Cycle Service for Refrigerant Lines Replacement of ComponentsRefrigerant Recovery Brazing Evacuation and Recharge R-404APage Important Notes for Component Replacement ComponentVI. Cleaning and Maintenance Cleaning and Sanitizing InstructionsCleaning Procedure Sanitizing Procedure Following Cleaning Procedure Maintenance Stainless Steel ExteriorStorage Bin Scoop Dispenser Unit/Storage BinPreparing the Icemaker for Periods of Non-Use Page VII. Disposal

Condensing Unit Models SRK-14J/3, KMS-1401MLJ specifications

The Hoshizaki KMS-1401MLJ and the Condensing Unit Models SRK-14J/3 are critical components in the commercial refrigeration sector, designed to provide efficient and reliable cooling for various applications. These models stand out for their exceptional performance, advanced technologies, and robust characteristics that meet the demanding needs of food service, hospitality, and retail establishments.

One of the primary features of the Hoshizaki KMS-1401MLJ is its high-capacity cooling capability. With a refrigerating capacity suitable for larger applications, this unit is designed to handle significant load demands while maintaining energy efficiency. This is particularly advantageous in environments where consistent temperature control is vital for preserving perishable goods.

The SRK-14J/3 models further enhance the functionality of this system by incorporating advanced inverter technology. This innovation allows for variable speed operation, adjusting the compressor's output based on the actual cooling demand. As a result, users can experience reduced energy costs and lower environmental impact. This efficiency not only decreases the overall operating expenses but also extends the lifespan of the unit due to reduced wear and tear on the compressor.

The Hoshizaki units are also renowned for their user-friendly interface, which features intuitive controls for easy operation and monitoring. This ensures that users can quickly adjust settings to accommodate specific storage needs, improving overall convenience and efficiency in the workplace.

Additionally, both the KMS-1401MLJ and the SRK-14J/3 models are designed with durability in mind. Constructed from high-quality materials, they are built to withstand the rigorous demands of a commercial kitchen or storage facility. Features such as corrosion-resistant coatings and robust insulation enhance the longevity of these units, making them a wise investment for business owners.

In terms of maintenance, Hoshizaki has incorporated several design elements to facilitate ease of service. Access points for routine checks and cleaning have been strategically placed, enabling technicians to perform maintenance tasks without disrupting the operation of the units.

In conclusion, the Hoshizaki KMS-1401MLJ and Condensing Unit Models SRK-14J/3 offer a perfect blend of efficiency, durability, and technological advancement. Their ability to provide reliable cooling solutions makes them integral to any establishment focused on quality and performance in food and beverage storage. For businesses seeking to enhance operational efficiency while ensuring the preservation of their products, these models represent a leading choice in the commercial refrigeration market.
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