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Icemaker Information

subzero.com 800.222.7820

BI

Service Manual

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Summary of Contents for BI Series

Page 1: ...Icemaker Information 77 subzero com 800 222 7820 BI Service Manual ...

Page 2: ...e motor gear and is attached to the timing cam Timing Cam The timing cam is attached to the tim ing gear and the ice ejector is inserted into the center of the timing cam As the timing cam rotates high and low spots on the cam operate the water valve solenoid switch and the holding switch The timing cam also moves the lever arm side to side and rotates the ice ejector Ice Mold The ice mold is wher...

Page 3: ...R OPERATION The following series of electrical schematics illustrate a typical icemaker cycle of operation Below each schematic is a diagram indicating the approximate loca tion of the ice ejector and ice level arm during the phase the schematic indicates Freeze Phase of Ice Making Cycle See Figure 6 2 The ice mold is filled with water The thermostat is open No icemaker components are energized Fi...

Page 4: ...E EJECTOR AND ICE LEVEL ARM DURING OPERATION 115 VOLTS 60 CYCLES SHUT OFF SWITCH THERMOSTAT MOLD HEATER WATER SOLENOID SOLENOID SWITCH MOTOR HOLDING SWITCH NO NC C NC NC NO NO C C TCO ICE MOLD ICE BUCKET ICE Figure 6 4 First Revolution Continued APPROXIMATE POSITION OF ICE EJECTOR AND ICE LEVEL ARM DURING OPERATION 115 VOLTS 60 CYCLES SHUT OFF SWITCH THERMOSTAT MOLD HEATER WATER SOLENOID SOLENOID ...

Page 5: ...SWITCH THERMOSTAT MOLD HEATER WATER SOLENOID SOLENOID SWITCH MOTOR HOLDING SWITCH NO NC C NC NC NO NO C C TCO ICE MOLD ICE BUCKET ICE Figure 6 6 First Revolution Continued APPROXIMATE POSITION OF ICE EJECTOR AND ICE LEVEL ARM DURING OPERATION 115 VOLTS 60 CYCLES SHUT OFF SWITCH THERMOSTAT MOLD HEATER WATER SOLENOID SOLENOID SWITCH MOTOR HOLDING SWITCH NO NC C NC NC NO NO C C ICE MOLD ICE BUCKET I ...

Page 6: ...LES SHUT OFF SWITCH THERMOSTAT MOLD HEATER WATER SOLENOID SOLENOID SWITCH MOTOR HOLDING SWITCH NO NC C NC NC NO NO C C ICE MOLD ICE BUCKET ICE TCO Figure 6 8 Start of Second Revolution APPROXIMATE POSITION OF ICE EJECTOR AND ICE LEVEL ARM DURING OPERATION 115 VOLTS 60 CYCLES SHUT OFF SWITCH THERMOSTAT MOLD HEATER WATER SOLENOID SOLENOID SWITCH MOTOR HOLDING SWITCH NO NC C NC NC NO NO C C ICE MOLD ...

Page 7: ... CYCLES SHUT OFF SWITCH THERMOSTAT MOLD HEATER WATER SOLENOID SOLENOID SWITCH MOTOR HOLDING SWITCH NO NC C NC NC NO NO C C ICE MOLD ICE BUCKET ICE IC E TCO Figure 6 10 Second Revolution Continued APPROXIMATE POSITION OF ICE EJECTOR AND ICE LEVEL ARM DURING OPERATION 115 VOLTS 60 CYCLES SHUT OFF SWITCH THERMOSTAT MOLD HEATER WATER SOLENOID SOLENOID SWITCH MOTOR HOLDING SWITCH NO NC C NC NC NO NO C ...

Page 8: ...it does not start the drive motor If the shut off arm has come to rest on top of the ice in the storage bin as illustrated the shut off switch remains in the normally closed position This interrupts power from reaching the thermostat until sufficient ice has been removed from the stor age bin allowing the shut off arm to lower NOTE To allow ice to freeze fully and reduce effects of low water press...

Page 9: ...ystem OFF then again to switch it back ON Manual Start Procedure 1 Pry the icemaker front cover from the support using a flat blade screwdriver or coin 2 With a flat blade screwdriver turn the drive gear counterclockwise until the holding switch is activat ed completing the circuit to the drive motor this will be about a 1 8 turn See Figure 6 13 The icemaker will then complete its cycle automatica...

Page 10: ...cification as non filtered systems ae are rated at 20 100 psi ICEMAKER TROUBLESHOOTING No Slow Ice Production 1 Ice maker system switched OFF Switch system ON 2 Shut off arm in up OFF position Move to ON position 3 Freezer too warm Check temp s see troubleshooting guide in service manual 4 Poor airflow over icemaker Remove obstructions 5 Ice cube jam Remove ice 6 Water froze in inlet tube Remove i...

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