Hoshizaki DCM-500BWH-OS, DCM-500BAH-OS service manual Low Ice Production

Page 41

Problem

Possible Cause

 

 

Remedy

 

 

 

 

 

 

[5] All components

d) Evaporator

1.

Defective.

1.

Replace.

run, but no ice is

 

 

 

 

 

e) Water Supply Line

1.

Condenser water

1.

Check and get

produced. (continued)

 

(water-cooled model

 

pressure too low or

 

recommended pressure.

 

only)

 

off and high pressure

 

 

 

 

 

control opens and

 

 

 

 

 

closes frequently.

 

 

 

f) Water Regulating Valve

1.

Water regulating

1.

Clean, adjust, or replace.

 

(water-cooled model

 

valve set too high or

 

 

 

only)

 

clogged (water-cooled

 

 

 

 

 

model only).

 

 

 

 

 

 

 

 

2. Low Ice Production

Problem

Possible Cause

 

 

Remedy

 

 

 

 

 

 

[1] Low ice production.

a)Evaporator

1.

Dirty or defective.

1.

Clean or replace.

 

b)Bin Control

1.

Erratic, sticking,

1.

Clean or replace.

 

 

 

defective.

 

 

 

 

 

 

 

 

 

c) Drain Valve

1.

Leaking water.

1.

Clean or replace.

 

 

 

 

 

 

 

d)Expansion Valve

1.

Bulb loose.

1.

Secure bulb.

 

 

 

 

 

 

2. Operating erratically.

2. Check and replace.

 

e)Refrigerant Charge

1.

Low charge.

1.

See "V.B. Service for

 

 

 

 

 

Refrigerant Lines."

 

 

 

 

 

 

2. Overcharge.

2. See "V.B. Service for

 

 

 

 

 

Refrigerant Lines."

 

 

 

 

 

 

 

f) Refrigerant Line

1.

Refrigerant line or

1.

Repair/replace the

 

 

 

component restricted.

 

clogged line/component

 

 

 

 

 

and replace the drier.

 

 

 

 

 

 

 

g)High-Side Pressure

1.

Dirty air filter or

1.

Clean.

 

Too High

 

condenser.

 

 

 

 

2. Ambient (or

2. Reduce temperature.

 

 

 

condenser) water

 

 

 

 

 

temperature too warm.

 

 

 

 

3. Fan motor slow rpm.

3. See "3. [2] a) Fan Motor."

 

 

 

 

 

 

4. Fan motor capacitor.

4. Check and replace.

 

 

 

 

 

 

5. Condenser water

5. Check and get

 

 

 

pressure too low or off

 

recommended pressure.

 

 

 

(water-cooled model

 

 

 

 

 

only).

 

 

 

 

 

 

 

 

6. Water regulating

6. Clean, adjust, or replace.

 

 

 

valve set too high or

 

 

 

 

 

clogged (water-cooled

 

 

 

 

 

model only).

 

 

 

h)Compressor

1.

Inefficient compressor.

1.

Replace

 

 

 

 

 

 

2. Faulty thermal

2. Replace compressor.

 

 

 

protector (overload).

 

 

 

 

 

 

 

 

3. Faulty capacitor/

3. Replace.

 

 

 

starter.

 

 

 

 

 

 

 

 

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Contents DCM-500BAH DCM-500BAH-OS DCM-500BWH DCM-500BWH-OS Hoshizaki AMERICA, INC Contents Page DCM-500BAH Specifications IcemakerWater TEMP. F DCM-500BAH-OSWater TEMP. F DCM-500BWHPotable Water Water Cooled Condenser DCM-500BWH-OSII. General Information Construction Spout a Expansion Valve Spout B Evaporator Assembly DCM-500BAH-OS, DCM-500BWH-OS Ice Making UnitSequence of Operation Startup Control Board Control Board Control Board Layout DCM-500BAH, DCM-500BWHPart Number 2A2649-01 LED Lights FeaturesControl Board Check Procedure Controls and Adjustments Portion ControlPower Supply Ice Making ComponentsDispensing Components DCM-500BAH, DCM-500BWH Float Switch DCM-500BAH-OS Inlet Water Valve Water Supply Wire Color Code Wiring DiagramsDCM-500BAH-OS, DCM-500BWH-OS DCM-500BWH-OS Sequence of Electrical Circuit Ice MakingDCM-500BWH-OS Ice Purge CycleFreeze Cycle Hour Drain Cycle / Drain Switch Shutdown Low Water Safety High Pressure Switch Continuous Dispense Sequence of Electrical Circuit DispensingPortion Dispense ICE Production Performance DataTotal IV. Service Diagnosis Diagnostic Procedure Ice Production Check No Ice Production Diagnostic ChartsProblem Possible Cause Remedy Problem Possible Cause Remedy Low Ice Production Other Dispensing Opti Serve OS Sensors 5c. Water Dispensing 5a. Ice Dispensing Continuous Mode5b. Ice Dispensing Portion Mode Service for Refrigerant Lines Removal and Replacement of ComponentsRefrigerant Recovery BrazingEvacuation and Recharge R-404A Removal and Replacement of Compressor Removal and Replacement of Expansion Valve Removal and Replacement of Evaporator Assembly Components Upper Bearing Wear Check Removal and Replacement of Extruding HeadRemoval and Replacement of Evaporator Removal and Replacement of AugerPage 5b. Lower Housing Removal and Replacement of Gear Motor Page Removal and Replacement of Water-Cooled Condenser Page Removal and Replacement of Fan Motor Adjustment of Water Regulating Valve Water-Cooled Model OnlyRemoval and Replacement of Drain Valve Removal and Replacement of Inlet or Dispensing Water ValveDispensing or Agitating Motor Removal and Replacement of Dispensing SystemDispensing Auger and Agitator Page Cleaning and Sanitizing Instructions VI. Cleaning and MaintenanceWater System Cleaning ProcedureDispensing Components Sanitizing SolutionBin Control Bracket Snap Pin Frequency Area Task MaintenancePreparing the Icemaker for Long Storage
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DCM-500BWH, DCM-500BAH, DCM-500BWH-OS, DCM-500BAH-OS specifications

The Hoshizaki DCM-500BWH-OS, DCM-500BWH, DCM-500BAH, and DCM-500BAH-OS are advanced ice makers designed to meet the needs of busy commercial environments. Hoshizaki is a renowned manufacturer known for producing high-quality refrigeration and foodservice equipment, and their DCM series of ice makers exemplifies this commitment to excellence.

One of the main features of the DCM-500 series is its ability to produce a significant amount of ice, ideally suited for restaurants, bars, and hotels. With a production capacity of up to 500 pounds of nugget ice per day, these units provide an efficient solution for establishments that require a steady supply of ice.

The nugget ice produced by the DCM-500 series is not only soft and chewable but also retains the cold temperature longer, making it perfect for beverages. This appealing characteristic of nugget ice caters to growing customer preferences for premium ice options.

These models also incorporate advanced ice-making technology, ensuring consistent quality. The DCM-500BWH-OS and DCM-500BAH-OS variants feature a self-contained design that makes installation simple and efficient, providing enhanced portability that makes them versatile for different locations within a commercial space.

The DCM-500BWH and DCM-500BAH models are equipped with features like a built-in ice bin that allows for storage convenience. The ice bins have a substantial holding capacity, reducing the frequency of refills and improving overall operation efficiency.

Additionally, the DCM-500 series is designed with energy efficiency in mind. Integrated with modern refrigeration systems, these ice makers comply with energy-saving standards, helping to reduce operational costs. User-friendly controls allow for easy adjustment and monitoring, ensuring that operators can manage their ice production without hassle.

Moreover, the robust construction materials used in these models increase durability, making them suitable for high-demand environments. Features such as easy-to-clean surfaces and self-diagnostic systems further optimize maintenance, ensuring prolonged performance without significant downtime.

Overall, the Hoshizaki DCM-500BWH-OS, DCM-500BWH, DCM-500BAH, and DCM-500BAH-OS ice makers are excellent choices for businesses seeking reliable and high-capacity ice production. Their advanced features, energy efficiency, and user-friendly operation make them a valuable addition to any commercial kitchen or bar setup.
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