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