Hoshizaki KML-200MAE, KML-200MWE service manual Clean

Page 30

PROBLEM

POSSIBLE CAUSE

 

REMEDY

[4] Water

a) Water Solenoid

1.

Diaphragm does not close.

1.

Check for water leaks

continues to

Valve

 

 

 

with icemaker off.

be supplied in

b) Controller Board

1.

Defective.

1.

See “II.2.[e] CHECKING

freeze cycle.

 

 

 

 

 

CONTROLLER BOARD.”

[5] No water

a) Water Supply Line

1.

Water pressure too low and

1.

Check and get

comes from

 

 

 

water level in Water Tank

 

recommended pressure.

Spray Tubes.

 

 

 

too low.

 

 

 

Water Pump

b) Water Solenoid

1.

Dirty mesh filter or orifice

1.

Clean.

will not start, or

Valve

 

and water level in Water

 

 

 

freeze cycle

 

 

 

Tank too low.

 

 

 

time is too

c) Water System

1.

Water leaks.

1.

Check connections for

short.

 

 

 

 

 

water leaks, and replace.

 

 

 

 

2.

Clogged.

2.

Clean.

 

 

d) Pump Motor

1.

Motor winding opened.

1.

Replace.

 

 

 

 

2.

Bearing worn out.

2.

Replace.

 

 

 

 

3.

Wiring to Pump Motor.

3.

Check for loose

 

 

 

 

 

 

 

connection or open, and

 

 

 

 

 

 

 

replace.

 

 

 

 

4.

Defective or bound impeller.

5. CLEAN

 

 

e) Controller Board

1.

Defective.

1.

See “II.2. [e] CHECKING

 

 

 

 

 

 

 

CONTROLLER BOARD.”

[6] Fan Motor will

a) Fan Motor

1.

Motor winding opened.

1.

Replace.

not start, or is

 

 

2.

Bearing worn out.

2.

Replace.

not operating.

 

 

3.

Wiring to Fan Motor.

3.

Check for loose

 

 

 

 

 

 

 

connection or open, and

 

 

 

 

 

 

 

replace.

 

 

 

 

4.

Defective Capacitor.

4.

Replace

 

 

 

 

5.

Fan blade bound.

5.

Check and replace.

 

 

 

b) Controller Board

1.

Defective.

1.

See “II.2. [e] CHECKING

 

 

 

 

 

 

 

CONTROLLER BOARD.”

[7] All components

a) Refrigerant

1.

Undercharged.

1.

Check for leaks and

run but no ice

 

 

 

 

 

recharge.

is produced.

 

 

 

 

 

 

 

 

2.

Air or moisture trapped.

2.

Replace Drier, and

 

 

 

 

 

 

 

recharge.

 

 

b) Compressor

1.

Defective valve.

1.

Replace.

 

 

c) Hot Gas Solenoid

1.

Continues to open in freeze

1.

Check and replace.

 

 

Valve

 

cycle.

 

 

 

 

 

d) Line Valve

1.

Continues to close in

1.

Check and replace

 

 

 

 

 

freeze cycle.

 

 

 

 

 

e) Water Supply Line

1.

Condenser water pressure

1.

Check and get

 

 

[Water-cooled model

 

too low or off and Pressure

 

recommended pressure.

 

 

only]

 

Control opens and closes

 

 

 

 

 

 

 

 

frequently.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

30

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Contents KML-200MAE KML-200MWE Foreword Contents Refrigerant Recovery Evacuation and Recharge Specifications 1. KML-200MAE KML-200MWE II. General Information Construction KML-200MAEKML-200MWE Controller Board SOLID-STATE ControlController Board Page Alpine C/Alpine Board Sequence 1st Cycle Important Water Valve opening is limited to 6 minutesLine Valve 2nd Cycle and after with pump drain2nd Cycle and after with no pump drain Controls and Adjustments Alpine/Alpine C Board OFF KML-200MWESetting Time Setting Frequency Checking Controller Board Test Program of Controller Board Switches Control SwitchService Switch III. Technical Information KML-200MWE Wiring Diagrams KML-200MAE, KML-200MWETiming Chart If Float Sw. is OFFTo Freeze Cycle From Freeze Cycle Performance Data Heat of Rejection from Condenser IV. Service Diagnosis No ICE Production Problem Possible Cause RemedyController Board Clean Evaporator is Frozen UP LOW ICE ProductionAbnormal ICE OthersRefrigerant Recovery Evacuation and RechargeRemoval and Replacement of Compressor Important BrazingPage Removal and Replacement of Drier Removal and Replacement of Expansion ValveRemoval and Replacement of HOT GAS Valve and Line Valve Page Removal and Replacement of Evaporator Important Page Adjustment of Water Regulating Valve WATER-COOLED Model only Removal and Replacement of Thermistor Caution Removal and Replacement of FAN Motor Removal and Replacement of Water Valve Removal and Replacement of Pump MotorRemoval and Replacement of Spray Tube Page Page Cleaning Page Sanitizing Procedure Following Cleaning Procedure Maintenance

KML-200MWE, KML-200MAE specifications

The Hoshizaki KML-200MWE and KML-200MAE are commercial ice machines renowned for their high performance and reliability in the foodservice industry. Both models are designed to meet the needs of businesses that require a consistent supply of ice for various applications, including restaurants, bars, and hotels.

One of the standout features of the KML-200MWE and KML-200MAE is their ability to produce high volumes of crisp, clear ice. These machines utilize a combination of advanced refrigeration technology and a unique ice-making process that ensures a rapid ice production rate while maintaining energy efficiency. The modular design allows for easy integration into existing setups, making them an ideal choice for operators looking to expand their ice supply without a complete equipment overhaul.

The KML-200MWE features a built-in water-cooled condenser, allowing for operation in environments where air-cooled systems may not be viable. This feature is particularly useful in warm climates or kitchens with limited ventilation, as it ensures that the machine operates efficiently, regardless of external temperatures. In contrast, the KML-200MAE incorporates an air-cooled condenser, making it a more flexible option for operators who prioritize energy savings and ease of maintenance.

Both models utilize a unique fluorinated refrigerant, which not only enhances their cooling efficiency but also aligns with modern environmental standards. The internal components are constructed from high-quality stainless steel, ensuring durability and resistance to corrosion. Moreover, their easy-to-access design simplifies maintenance routines, enabling operators to keep the machines running smoothly with minimal downtime.

Another key feature of the KML-200MWE and KML-200MAE is their ice storage capacity. With an ample bin size, these machines can store a significant amount of ice, reducing the need for frequent refills and making them ideal for busy establishments. Additionally, they are equipped with automatic ice level controls, which help maintain optimal ice quantities while preventing overflow.

Hoshizaki ice machines are also recognized for their innovative air filtration systems, which improve the quality of the ice produced. This ensures that the ice is not only abundant but also free from any contaminants, meeting the high standards of hygiene expected in the food industry.

In summary, the Hoshizaki KML-200MWE and KML-200MAE are exemplary models that blend technology, efficiency, and durability. Their advanced features make them suitable for various commercial applications, providing operators with reliable performance and peace of mind. Whether choosing the water-cooled or air-cooled variant, businesses can expect a high-quality product that enhances their ice production capabilities.
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