Hoshizaki DCM-500BAH-OS, DCM-500BWH-OS service manual Opti Serve OS Sensors

Page 44

Problem

Possible Cause

 

 

Remedy

 

 

 

 

 

 

[3] No water dispensed.

a) Power Supply

1.

"OFF" position.

1.

Move to "ON" position.

 

b) Water Supply

1.

Water supply off or

1.

Check and get

 

 

 

pressure too low.

 

recommended pressure.

 

 

 

 

 

 

 

c) Dispensing Water

1.

Coil winding open.

1.

Replace.

 

Valve

2. Wiring to dispensing

2. Check for loose or open

 

 

 

 

 

water valve.

 

connection. Repair or

 

 

 

 

 

replace.

 

 

 

 

 

 

 

d) Control Board

1.

Defective.

1.

See "II.D.4. Control

 

 

 

 

 

Board Check Procedure."

 

 

 

 

 

 

 

e) Water Dispense Switch

1.

Opti Serve sensor

1.

See "5. Opti Serve (OS)

 

 

 

defective. (OS only)

 

Sensors."

 

 

2. Bad contacts. (push

2. Check for continuity and

 

 

 

button only)

 

replace.

5. Opti Serve (OS) Sensors

Be sure to check all items in section "IV.C.4. Dipsensing" prior to using this chart. Use the following charts along with the wiring diagram to troubleshoot the OS sensors.

Problem

Possible Cause

 

Remedy

 

 

 

 

 

[1] No ice dispensed.

a) OS Sensor

1. Dirty sensor.

1.

Clean, using Scale Away

 

 

 

 

(6 fl. oz. (0.8 l) per 1 gal.

 

 

 

 

(3.8 l) of water) or other

 

 

 

 

non‑abrasive cleaner.

 

 

2. Defective.

2. See chart 5a and 5b

 

 

 

 

below.

 

b) Dispense Mode Switch

1. Wrong setting.

1.

Move to desired setting.

 

 

2. Bad contacts.

2. Check for continuity and

 

 

 

 

replace.

 

 

 

 

 

 

3. Loose connection.

3. Tighten.

 

 

 

 

 

 

c) Control Board

1. Loose connection.

1.

Tighten.

 

 

 

 

 

 

2. Defective.

2. See "II.D.4. Control

 

 

 

 

Board Check Procedure"

 

 

 

 

and chart 5a and 5b

 

 

 

 

below.

[2] No water dispensed.

a) OS Sensor

1. Dirty sensor.

1.

Clean.

 

 

2. Defective.

2. See chart 5c below.

 

b) Dispense Mode Switch

1. Wrong setting.

1.

Move to desired setting.

 

 

2. Bad contacts.

2. Check for continuity and

 

 

 

 

replace.

 

 

 

 

 

 

3. Loose connection.

3. Tighten.

 

c) Control Board

1. Loose connection.

1.

Tighten.

 

 

2. Defective.

2. See "II.D.4. Control

 

 

 

 

Board Check Procedure"

 

 

 

 

and chart 5c below.

 

 

 

 

 

44

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Contents DCM-500BAH DCM-500BAH-OS DCM-500BWH DCM-500BWH-OS Hoshizaki AMERICA, INC Contents Page Specifications Icemaker DCM-500BAHDCM-500BAH-OS Water TEMP. FDCM-500BWH Water TEMP. FDCM-500BWH-OS Potable Water Water Cooled CondenserII. General Information Construction Spout a Expansion Valve Spout B Evaporator Assembly Ice Making Unit DCM-500BAH-OS, DCM-500BWH-OSSequence of Operation Startup Control Board Control Board Layout DCM-500BAH, DCM-500BWH Control BoardPart Number 2A2649-01 Features LED LightsControls and Adjustments Portion Control Control Board Check ProcedurePower Supply Ice Making ComponentsDispensing Components DCM-500BAH, DCM-500BWH Float Switch DCM-500BAH-OS Inlet Water Valve Water Supply Wiring Diagrams Wire Color CodeDCM-500BAH-OS, DCM-500BWH-OS Sequence of Electrical Circuit Ice Making DCM-500BWH-OSIce Purge Cycle DCM-500BWH-OSFreeze Cycle Hour Drain Cycle / Drain Switch Shutdown Low Water Safety High Pressure Switch Sequence of Electrical Circuit Dispensing Continuous DispensePortion Dispense Performance Data ICE ProductionTotal IV. Service Diagnosis Diagnostic Procedure Ice Production Check Diagnostic Charts No Ice ProductionProblem 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 Removal and Replacement of Components Service for Refrigerant LinesRefrigerant Recovery BrazingEvacuation and Recharge R-404A Removal and Replacement of Compressor Removal and Replacement of Expansion Valve Removal and Replacement of Evaporator Assembly Components Removal and Replacement of Extruding Head Upper Bearing Wear CheckRemoval and Replacement of Auger Removal and Replacement of EvaporatorPage 5b. Lower Housing Removal and Replacement of Gear Motor Page Removal and Replacement of Water-Cooled Condenser Page Adjustment of Water Regulating Valve Water-Cooled Model Only Removal and Replacement of Fan MotorRemoval and Replacement of Inlet or Dispensing Water Valve Removal and Replacement of Drain ValveDispensing or Agitating Motor Removal and Replacement of Dispensing SystemDispensing Auger and Agitator Page VI. Cleaning and Maintenance Cleaning and Sanitizing InstructionsCleaning Procedure Water SystemSanitizing Solution Dispensing ComponentsBin Control Bracket Snap Pin Maintenance Frequency Area TaskPreparing 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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