Hoshizaki DCM-271BAH Service Manual page 29

No Ice Production - Possible Cause
1. Water Supply
2. Control Board
3. Float Switch
4. Inlet Water Valve
1. Bin Control
2. Control Board
2. Ice/Water Dispensing
1. Power Supply
2. Control Board
3. Ice Dispense Switch
4. Ice Dispense Solenoid
5. Ice Dispense Relay
6. Gear Motor
7. Shutter Assembly
1. Power Supply
2. Control Board
3. OS Sensor (infrared)
4. Ice Dispense Solenoid
5. Ice Dispense Relay
6. Gear Motor
7. Shutter Assembly
Refill
a) Off.
a) No power to float switch (5VDC) or not reading float switch
condition.
b) No power to inlet water valve (24VAC).
a) Float does not move freely.
b) Defective.
a) Clogged or defective.
Shutdown
a) Large balance plate sticking.
b) Micro-switch defective.
a) S1 dip switch settings not set correctly.
b) Defective.
Ice Dispense-Push Button
a) Off, blown fuse, or tripped breaker.
a) No power from control board to ice dispense switch (5VDC) or
not reading signal.
b) No power to ice dispense solenoid or dispense relay (115VAC).
a) Defective.
a) Defective or loose connection.
a) Defective.
a) Defective.
a) Defective.
Ice Dispense-Opti-Serve
a) Off, blown fuse, or tripped breaker.
a) No power from control board to OS sensor (5VDC) or not reading
signal.
b) No power to ice dispense solenoid or dispense relay (115VAC).
a) Defective.
a) Defective or loose connection.
a) Defective.
a) Defective.
a) Defective.
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