HoshizakiHoshizaki America, Inc
Cubelet Icemaker / Dispenser Models DCM-500BAH DCM-500BAH-OS
Attn Hoshizaki Technical Support Department
Phone 1-800-233-1940 Technical Service 770 487-2331 Fax
Complete and detailed explanation of the problem
HOSHIZAKI AMERICA, INC 618 Highway 74 South Peachtree City, GA
CONTENTS
V. Removal and Replacement of Components
IV. Service Diagnosis
A. Diagnostic Procedure
C. Diagnostic Charts
1. DCM-500BAH
I. Specifications A. Icemaker
Spare Fuse
2. DCM-500BAH-OS
SHAPE OF ICE
90/70F
3. DCM-500BWH
4. DCM-500BWH-OS
1. DCM-500BAH-OS
II. General Information A. Construction
Door Switch Gear Motor Control Switch Dispense Mode Switch
2. DCM-500BWH-OS
Evaporator Assembly
Inlet Water Valve Float Switch Reservoir Control Box Power Switch
1. DCM-500BAH-OS, DCM-500BWH-OS
B. Ice Making Unit
3. Freeze Cycle
C. Sequence of Operation
1. Fill Cycle
2. Ice Purge Cycle 60 seconds
2. Shutdown & Restart 3. 12 Hour Drain Cycle Shutdown & Restart
1. Startup
D. Control Board
Part Number 2A1592-01
1. Control Board Layout a DCM-500BAH, DCM-500BWH
Control Board
Part Number 2A2649-01
b DCM-500BAH-OS, DCM-500BWH-OS
Control Board
a LED Lights
2. Features
b Ice Making Components
3. Controls and Adjustments a Portion Control
4. Control Board Check Procedure
a Power Supply
c Dispensing Components DCM-500BAH, DCM-500BWH
Plastic Retainer Clip
E. Float Switch
Red upper Black common Blue lower Magnet towards top Upper Float blue
Spring Retainer Clip Magnet towards top Lower Float white
Water Valve High Pressure Switch Compressor Access Valve
III. Technical Information A. Water Circuit and Refrigeration Circuit
Inlet Water Valve Water Supply Float Switch Water Level Reservoir
Evaporator Overflow Gear Motor Fan Air-Cooled Condenser Access Valve
2. DCM-500BWH-OS
Float Switch
Water-Cooled Condenser Water Supply Out Water Regulating Valve Access
Water Valve High Pressure Switch Access Compressor Valve
WIRE COLOR CODE
B. Wiring Diagrams
1. DCM-500BAH, DCM-500BWH
High Pressure Switch
Air-Cooled Model
2. DCM-500BAH-OS, DCM-500BWH-OS
High Pressure Switch
WIRE COLOR CODE
1. Fill Cycle
C. Sequence of Electrical Circuit - Ice Making
DCM-500BWH
2. Ice Purge Cycle
WIRE COLOR CODE
DCM-500BAH
DCM-500BAH
WIRE COLOR CODE
3. Freeze Cycle
Compressor and fan motor start 60 seconds after gear motor starts
4. 12 Hour Drain Cycle / Drain Switch
5. Shutdown
6. Low Water Safety
7. High Pressure Switch
1. Continuous Dispense
D. Sequence of Electrical Circuit - Dispensing
2. Portion Dispense
1. The data without *marks should be used for reference only
E. Performance Data
1. DCM-500BAH-OS
1. The data without *marks should be used for reference only
2. DCM-500BWH-OS
IV. Service Diagnosis A. Diagnostic Procedure
B. Ice Production Check
1. No Ice Production
C. Diagnostic Charts
Remedy
Problem
Possible Cause
Remedy
Problem
Possible Cause
Possible Cause
2. Low Ice Production
Problem
Problem
Remedy
3. Other
Problem
Possible Cause
Remedy
4. Dispensing
Problem
Possible Cause
5. Opti Serve OS Sensors
K5 Pin 3 W/BK
5a. Ice Dispensing Continuous Mode
5b. Ice Dispensing Portion Mode
5c. Water Dispensing
2. Brazing
V. Removal and Replacement of Components
A. Service for Refrigerant Lines
1. Refrigerant Recovery
3. Evacuation and Recharge R-404A
B. Removal and Replacement of Compressor
C. Removal and Replacement of Expansion Valve
D. Removal and Replacement of Evaporator Assembly Components
1. Upper Bearing Wear Check
2. Removal and Replacement of Extruding Head
4. Removal and Replacement of Evaporator
3. Removal and Replacement of Auger
9 Disconnect the inlet and outlet tubing
4 Recover the refrigerant and store it in an approved container
3 Remove the apron panel, then remove the left side panel
8 Remove the evaporator bracket and disconnect the water hoses
5b. Lower Housing
Bracket Bolts Drain Pan Drain Pan Bracket Bolts Drain Pan Bracket
6. Removal and Replacement of Gear Motor
Gear Motor Cover Screws Gear Motor Cover Gear Motor
Gear Motor/Drain Pan Bolts and Washers Gear Motor Bracket Gear Motor
E. Removal and Replacement of Self-Contained Air-Cooled Condenser
F. Removal and Replacement of Water-Cooled Condenser
Water‑Cooled Model Only
G. Removal and Replacement of Water Regulating Valve ‑
I. Removal and Replacement of Fan Motor
H. Adjustment of Water Regulating Valve - Water-Cooled Model Only
K. Removal and Replacement of Drain Valve
J. Removal and Replacement of Inlet or Dispensing Water Valve
2. Dispensing or Agitating Motor
L. Removal and Replacement of Dispensing System
1. Dispensing Auger and Agitator
Agitator Agitating Motor Dispensing Motor Dispensing Auger
6 Install the new motor
A. Cleaning and Sanitizing Instructions
VI. Cleaning and Maintenance
1. Water System
a Cleaning Solution
b Cleaning Procedure
c Cleaning and Sanitizing Procedure
c Sanitizing Solution
d Sanitizing Procedure - Following Cleaning Procedure
b Sanitizing Solution
3 Remove the front cover of the storage bin
B. Maintenance
C. Preparing the Icemaker for Long Storage
5 Close the condenser water supply line drain valve