Hoshizaki KM-100A Service Manual Download Page 11 | Manualshive

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3. CONTROL BOARD

* A HOSHIZAKI exclusive solid-state control is employed in KM-100A and KM-125A

Crescent Cubers.

* All models are pretested and factory-adjusted.

CAUTION

1. Fragile, handle very carefully.

2. A control board contains integrated circuits, which are susceptible to

failure due to static discharge. It is especially important to touch the

metal part of the unit before handling or replacing the board.

3. Do not touch the electronic devices on the board or the back of the

board to prevent damage to the board.

4. Do not change wiring and connections.

5. Always replace the whole board assembly when it goes bad.

6. Do not short out the power supply to test for voltage.

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Summary of Contents for KM-100A

Page 1: ...SERVICE MANUAL HOSHIZAKI SELF CONTAINED CRESCENT CUBER MODEL KM 100A KM 125A NO F003 756 ISSUED JUN 18 2008 REVISED JUN 17 2011 ...

Page 2: ...25A 3 b ICEMAKING COMPARTMENT 4 2 SEQUENCE OF OPERATION 5 a ONE MINUTE FILL CYCLE 5 b INITIAL HARVEST CYCLE 5 c FREEZE CYCLE 5 d DRAIN CYCLE 6 e NORMAL HARVEST CYCLE 6 3 CONTROL BOARD 8 a CONTROL BOARD LAYOUT 9 b FEATURES 10 c CONTROLS AND ADJUSTMENTS 12 d CONTROL BOARD CHECK PROCEDURE 17 e CONTROL BOARD REPLACEMENT 18 4 HARVEST CONTROL THERMISTOR 18 5 BIN CONTROL 19 a EXPLANATION OF OPERATION 19 ...

Page 3: ...2 8 PUMP MOTOR 43 9 WATER VALVE 44 10 DRAIN VALVE 45 11 FLOAT SWITCH 46 12 BIN CONTROL SWITCH 47 13 THERMISTOR 48 14 CONTROL BOX 49 a POWER SWITCH 50 b FUSE 50 c FUSE HOLDER 50 d CONTROL BOARD 50 e POWER RELAY 50 f CONTROL BOARD TRANSFORMER 51 15 WATER TANK 51 16 CUBE GUIDE 52 17 SEPARATOR 52 18 SPRAY TUBE WATER SUPPLY PIPE SPRAY GUIDE 54 19 DOOR 55 VI CLEANING AND MAINTENANCE INSTRUCTIONS 56 1 CL...

Page 4: ...m 3 AT 10 C WT 10 C Approx 0 22 m 3 AT 21 C WT 15 C Approx 0 11 m 3 AT 32 C WT 21 C Crescent Cube Approx 26 min AT 21 C WT 15 C Approx 1 7 kg 182 pcs AT 21 C WT 15 C 610mm W X 712mm D X 840mm H 152mm Leg Stainless Steel Plastic Door Galvanized Steel Rear Approx 45 kg Bin Cont Setting Approx 35 kg Polyurethane Foam X type Connection With Plug Inlet G1 2 connected at rear side Outlet G3 4 connected ...

Page 5: ...VA 5 9A Approx 128 kg AT 10 C WT 10 C Approx 115 kg AT 21 C WT 15 C Approx 102 kg AT 32 C WT 21 C Approx 0 73 m 3 AT 10 C WT 10 C Approx 0 40 m 3 AT 21 C WT 15 C Approx 0 18 m 3 AT 32 C WT 21 C Crescent Cube Approx 24 Min AT 21 C WT 15 C Approx 55 kg Bin Cont Setting Approx 45 kg 762mm W X 712mm D X 840mm H 152mm Leg Stainless Steel Plastic Door Galvanized Steel Rear Approx 2 1 kg 238 pcs AT 21 C ...

Page 6: ...t Louver Leg Side Panel R Power Supply Cord Top Cover Hot Gas Valve Thermistor Evaporator Drain Valve Condenser Fan Motor Separator Compressor Water Tank Water Valve Expansion Float Switch Valve Overflow Pipe Drier Pump Motor Control Switch Service Switch Control Box Front View Rear View Bin Control Switch With Tank Removed ...

Page 7: ...4 b ICEMAKING COMPARTMENT Spray Tube Evaporator Water Supply Pipe Separator Cube Guide Water Tank Overflow Pipe Drain Valve Separator Water Valve Pump Motor Float Switch ...

Page 8: ...e freeze cycle starts The minimum total time allowed by the board for a complete harvest cycle is 2 minutes WV is open during harvest for a maximum of 6 minutes or the length of harvest minus 0 10 30 or 50 seconds adjustable by S1 dip switch 7 8 whichever is shorter LED 8 goes off when WV closes PM energizes and runs for the last 0 10 30 or 50 seconds of harvest depending on S1 dip switch 7 8 sett...

Page 9: ...rol board then receives the thermistor s 3 9 kΩ signal and starts the harvest timer WV is open during harvest for a maximum of 6 minutes or the length of harvest minus 0 10 30 or 50 seconds adjustable by S1 dip switch 7 8 whichever is shorter LED 8 goes off when WV closes PM energizes and runs for the last 0 10 30 or 50 seconds of harvest depending on S1 dip switch 7 8 setting LED 7 comes on when ...

Page 10: ...7 ...

Page 11: ...ted circuits which are susceptible to failure due to static discharge It is especially important to touch the metal part of the unit before handling or replacing the board 3 Do not touch the electronic devices on the board or the back of the board to prevent damage to the board 4 Do not change wiring and connections 5 Always replace the whole board assembly when it goes bad 6 Do not short out the ...

Page 12: ...S2 Dip Switch Alarm Reset Button Relay LEDs 6 indicate which relays are energized as listed below LED 5 X1 Relay Compressor Comp Remote Fan Motor FMR LED 6 X2 Relay Hot Gas Valve HGV Self Contained Fan Motor FMS FMS off when LED on LED 8 X4 Relay Inlet Water Valve WV Harvest Water Valve HWV on units with two inlet water valves LED 9 X5 Relay Freeze Water Valve FWV on units with two inlet water val...

Page 13: ...the circuit and the icemaker automatically stops The control board will signal this problem using 1 beep every 3 seconds The alarm reset button on the control board must be pressed with power on to reset the safety d Low Water Safety The control board checks the position of the float switch at the end of the initial one minute water fill cycle and at the end of each harvest cycle If the float swit...

Page 14: ...OPERATION Sequence Step LED Energized Components Time LEDs are On Min Max Avg 1 Minute Fill Cycle 8 WV 60 seconds Harvest Cycle 5 6 8 WV HGV Comp 2 minutes 20 minutes 3 to 5 minutes Last 0 10 30 or 50 seconds adjustable by dip switch of harvest WV de energizes and PM energizes LEDs 5 6 and 7 are on Freeze Cycle 5 7 Comp PM FMS 5 minutes freeze timer setting 25 to 30 minutes Drain 5 6 4 7 Comp HGV ...

Page 15: ... ON ON OFF KM 125A OFF OFF OFF OFF ON ON ON OFF ON OFF Control Board Program Ver Auxiliary Code S2 Dip Switch No 1 2 3 4 5 6 P00013 02 2 5 or earlier V 0 or earlier KM 100A ON OFF OFF OFF OFF ON KM 125A ON OFF OFF OFF OFF ON P01771 02 3 1 V 1 V 2 3 2 V 3 or later KM 100A ON OFF OFF OFF OFF OFF KM 125A ON OFF OFF OFF OFF OFF Do not adjust the S2 dip switch These must be left in the factory default ...

Page 16: ...0 OFF ON 20 120 ON ON 20 180 T1 Time to drain the water tank T2 Harvest timer at drain Drain cycle always occurs on the 2nd harvest after startup Then depending on the drain frequency control setting dip switch 5 6 drain cycle occurs every cycle or every 2nd 5th or 10th cycle d Drain Frequency Control S1 dip switch 5 6 The water tank drains at the frequency set by the drain frequency control The d...

Page 17: ...Timer S1 dip switch 9 10 CAUTION Adjust to proper specification or the unit may not operate correctly The freeze timer setting determines the maximum allowed freeze time to prevent possible freeze up issues Upon termination of freeze timer machine initiates the harvest cycle After 2 consecutive timer terminations machine will shut down possibly indicating a problem The freeze timer is factory adju...

Page 18: ...e suction line checks for a 50 F 10 C temperature as the evaporator cools When 50 F 10 C is reached a 3 9 kΩ signal causes the control board to de energize the pump motor for 10 seconds and energize it for 50 seconds repeatedly When 34 F 1 C is reached a 5 9 kΩ signal causes the control board to de energize the pump motor for 10 seconds energize it for 50 seconds de energize it again for 10 second...

Page 19: ...FF Deactivated ON Activated m Overfreeze Detection Control S2 dip switch 5 Program Ver 3 1 Ver 3 2 Do not adjust This must be left in the factory default position or the unit will not operate properly It is deactivated on the KM 100A and KM 125A When activated the thermistor detects the temperature of the evaporator outlet to find overfreeze in a harvest cycle and at the beginning of a freeze cycl...

Page 20: ...5 C temperature as the evaporator cools When 41 F 5 C is reached a 4 8 kΩ signal causes the control board to de energize the pump motor for 10 seconds When activated Ver 2 0 the thermistor located on the suction line checks for a 50 F 10 C temperature as the evaporator cools When 50 F 10 C is reached a 3 9 kΩ signal causes the control board to de energize the pump motor for 10 seconds and energize...

Page 21: ...OR A thermistor semiconductor is used as a harvest control sensor and anti slush sensor The resistance varies depending on the suction line temperatures The thermistor detects the temperature of the evaporator outlet to start the harvest timer or momentarily stop the pump motor during the freeze cycle No adjustment is required If necessary check for resistance between thermistor leads and visually...

Page 22: ... the machine to complete the freeze cycle and the following harvest cycle before shutting down the machine b BIN CONTROL CHECK PROCEDURE 1 Clear any ice away from the bin control 2 Make sure the control switch is in the ICE position 3 Check that the POWER OK LED on the control board is on 4 Activate the bin control actuator press the actuator in Check that the POWER OK LED flashes 5 Disconnect the...

Page 23: ... two functions draining the tank DRAIN lower position and washing the icemaking compartment WASH or CIRCULATE upper or center position Both the WASH and CIRCULATE positions activate the same function of washing the icemaking compartment The service switch is activated in any of the three positions when the power is supplied to the pump motor 1 DRAIN KM 100A and KM 125A employ the pump out drain sy...

Page 24: ...Float Switch Cube Guide Drier Drain Valve Thermistor Suction Line Water Supply Water Valve Spray Tube Fan Condenser Expansion Valve Compressor Access Valve Strainer Hot Gas Valve High Pressure Switch Refrigerant C Water Circuit Discharge Insulation Tube Pump Motor Water Tank Drain ...

Page 25: ...22 2 WIRING DIAGRAM a PRODUCTION 2008 Auxiliary Code T 1 U 1 ...

Page 26: ...23 b PRODUCTION 2009 Auxiliary Code U 1 OR LATER ...

Page 27: ...F OFF ON OFF ON ON OFF 5 C OFF ON OFF OFF ON OFF ON ON RELAY X6 DV RELAY X1 COMP RELAY X2 HV FM RELAY X3 PM RELAY X4 WV DRAIN VALVE ON OFF CONTROL BOARD FLOAT SWITCH ON OFF BIN CONTROL SWITCH ON OFF HOT GAS VALVE ON OFF WATER VALVE ON OFF Program Ver 3 2 or later Auxiliary Code V 3 or later FAN MOTOR ON OFF ON PUMP MOTOR Program Ver 2 5 or earlier Auxiliary Code V 0 or earlier ON OFF Program Ver 3...

Page 28: ...M RELAY X3 PM RELAY X4 WV OFF ON OFF OFF ON OFF ON ON OFF ON ON OFF 5 C CLEANING VALVE ON OFF OFF ON FREEZE CYCLE HARVEST CYCLE Thermistor senses 9 C after more than 8 min 50 sec in harvest cycle Ver 3 1 or later HARVEST CYCLE Thermistor senses 9 C after 6 min to 8 min 50 sec in harvest cycle Ver 3 1 or later 6min 3min 10sec 6min HARVEST CYCLE INITIAL FREEZE CYCLE HARVEST CYCLE FREEZE CYCLE HARVES...

Page 29: ...ection during initial start up and at the end of each harvest Diagnosis If the water valve does not open check for no supply voltage at water valve terminals bad coil or plugged screen or external filter no water flow If unit fails to start harvest check for open float switch or bad 1 minute timer in board 4 Initial Harvest Cycle The inlet water valve remains energized contactor coil energizes to ...

Page 30: ...rd Note Normal freeze cycle will last 0 to 40 minutes depending on model and conditions Cycle times and pressures should follow performance data provided in this manual 6 Drain Cycle The compressor remains energized the hot gas valve energizes the fan motor de energizes The drain valve and pump motor energize allowing water to drain from the tank for 10 seconds This removes contaminants from the w...

Page 31: ... or coil winding opened 1 Replace g Wiring to Control Board 1 Loose connections or open 1 Check for continuity and replace h Thermistor 1 Leads shorted or open and High Temperature Safety operates If open unit will start but have long harvest cycle 1 See II 4 HARVEST CONTROL THERMISTOR i Hot Gas Solenoid Valve 1 Continues to open in freeze cycle and High Temperature Safety operates 1 Check for pow...

Page 32: ... too low 2 Increase voltage c Overload Protector 3 Refrigerant overcharged or undercharged 3 Recharge 1 Bad contacts 1 Check and replace d Starter 2 Coil winding opened 2 Replace e Start Capacitor 1 Defective 1 Replace 1 Bad contacts 1 Check for continuity and replace f Power Relay 2 Coil winding opened 2 Replace 1 Wiring to Compressor 1 Check for loose connection or open and replace 2 Defective 2...

Page 33: ...nd clean 5 No water comes from Spray Tubes Water Pump will not start or freeze cycle time is too short e Control Board 1 Defective 1 See II 3 d CONTROL BOARD CHECK PROCEDURE 1 Motor winding opened 1 Replace 2 Bearing worn out 2 Replace 3 Wiring to Fan Motor 3 Check for loose connection or open and replace a Fan Motor 4 Fan blade bound locked Fan Motor 4 Check and replace 6 Fan Motor will not start...

Page 34: ...tor 1 Out of position or loose attachment 1 See V 14 THERMISTOR 1 Harvest Timer is set too short 1 Adjust longer referring to II 4 HARVEST CONTROL THERMISTOR 2 All ice formed on Evaporator does not fall into bin in harvest cycle f Control Board 2 Defective 2 See II 3 d CONTROL BOARD CHECK PROCEDURE 1 Clogged 1 Clean a Spray Tubes 2 Out of position 2 Place in position b Water System 1 Dirty 1 Clean...

Page 35: ...ter Valve 5 ABNORMAL ICE PROBLEM POSSIBLE CAUSE REMEDY a Cube Guide Water Tank 1 Out of position Circulated water falls into bin 1 Check that Cube Guide is properly installed on Water Tank and tank is fixed securely with snaps 1 Small cubes b See chart 2 5 and check water supply line Inlet Water Valve water system Pump Motor and Control Board a See chart 3 1 and 3 and check Float Switch Inlet Wate...

Page 36: ...cemaker will not stop when bin is filled with ice b Control Board 1 Defective 1 See II 3 d CONTROL BOARD CHECK PROCEDURE a Pump Motor 1 Bearings worn out 1 Replace 1 Bearings worn out 1 Replace 2 Fan blade deformed 2 Replace fan blade b Fan Motor 3 Fan blade does not move freely 3 Replace 1 Bearings worn out or cylinder valve broken 1 Replace c Compressor 2 Mounting pad out of position or loose ho...

Page 37: ...d for R404A 3 Handling of Handy Flux R404A Repair of the refrigerant circuit requires brazing It is no problem to use the same handy flux that has been used for the current refrigerants However its entrance into the refrigerant circuit should be avoided as much as possible 4 Oil for Processing of Copper Tubing R404A When processing the copper tubing for service wipe off oil if any used by using al...

Page 38: ...nit Install a proper Access Valve on the low side line ex Compressor Process Pipe Recover the refrigerant from the Access Valve and store it in a proper container Do not discharge the refrigerant into the atmosphere c EVACUATION AND RECHARGE 1 Attach Charging Hoses a Service Manifold and a Vacuum Pump to the system 2 Turn on the Vacuum Pump 3 Allow the Vacuum Pump to pull down to a 760 mmHg vacuum...

Page 39: ...fluoric acid and carbonyl fluoride both of which are hazardous 2 Always recover the refrigerant and store it in a proper container Do not discharge the refrigerant into the atmosphere 3 Do not use silver alloy or copper alloy containing Arsenic 4 Do not use R404A as a mixture with pressurized air for leak testing Refrigerant leaks can be detected by charging the unit with a little refrigerant rais...

Page 40: ...he Terminal Cover on the Compressor and disconnect Solderless Terminals 5 Disconnect the Discharge and Suction Pipes using brazing equipment 6 Remove the Hold down Bolts Washers and Rubber Grommets 7 Slide and remove the Compressor Unpack the new Compressor package 8 Attach the Rubber Grommets of the previous Compressor 9 Clean the Suction and Discharge Pipes with an abrasive cloth paper 10 Place ...

Page 41: ...d Rear Panel 3 Recover the refrigerant and store it in a proper container if required by an applicable law see 1 b REFRIGERANT RECOVERY 4 Remove the Drier Holder if any and pull the Drier toward you for easy service 5 Remove the Drier using brazing equipment 6 Braze the new Drier with the arrow on the Drier in the direction of the refrigerant flow Use nitrogen gas at a pressure of 0 2 0 3 bar when...

Page 42: ...or replacement has been made 1 Unplug the icemaker or disconnect the power source 2 Remove the Top Panel Rear Panel and Side Panel R 3 Recover the refrigerant and store it in a proper container if required by an applicable law see 1 b REFRIGERANT RECOVERY 4 Disconnect the Hot Gas Valve leads 5 Remove the screw and the Solenoid Coil 6 Remove the valve and Drier using brazing equipment 7 Braze the n...

Page 43: ...The water in the refrigeration circuit may exceed the capacity of the Drier and freeze in the Expansion Valve Always install a new Drier every time the sealed refrigeration system is opened Do not replace the Drier until after all other repair or replacement has been made 1 Unplug the icemaker or disconnect the power source 2 Remove the Top Panel Rear Panel and Side Panel R 3 Recover the refrigera...

Page 44: ... EVACUATION AND RECHARGE 11 Attach the Bulb to the suction line in position Be sure to secure it using a wire or clamp and replace the insulation 12 Refit the panels in their correct positions 13 Plug in the icemaker or connect the power source WARNING Always protect the valve body by using a damp cloth to prevent the valve from overheating Do not braze with the valve body exceeding 115 C Fig 5 Re...

Page 45: ...he four screws securing the Fan Motor Bracket and pull out the Fan Motor in the arrow direction To prevent deformation do not hit the Fan on the Condenser or other parts 5 Install the new Fan Motor in the reverse order of the removal procedure 6 Refit the panels in their correct positions 7 Plug in the icemaker or connect the power source Fig 6 Fan Motor Bracket Screw Fan Motor ...

Page 46: ... Band connecting the Pump Motor discharge outlet and pull off the Rubber Hose Fig 7 6 Remove the screws securing the Pump Motor and lift it off Hose Band Rubber Hose 7 Install the new motor in the reverse order of the removal procedure 8 Refit the Water Tank in its correct position 9 Plug in the icemaker or connect the power source and check for leaks 10 Refit the panels in their correct positions...

Page 47: ...ter coming out 7 Turn the Inlet Nut in the arrow direction to remove it from the Water Valve Do not lose the Gasket inside 8 Remove the two mounting screws 9 Install the new valve in the reverse order of the removal procedure 10 Tighten the Inlet Nut to a torque of 7 85 N m 5 to prevent water leaks 11 Open the water supply tap 12 Plug in the icemaker or connect the power source 13 Check for leaks ...

Page 48: ...ove the Hose Clamps at the inlet and outlet sides 6 Remove the Rubber Hoses at the inlet and outlet sides 7 Remove the two mounting screws 8 Install the new valve in the reverse order of the removal procedure 9 Open the water supply tap 10 Plug in the icemaker or connect the power source 11 Check for leaks 12 Refit the panels in their correct positions Fig 10 Mounting Screw Drain Valve ...

Page 49: ...l and Side Panel R 3 Disconnect the Connector of the Float Switch lead 4 Remove the two mounting screws 5 Install the new Float Switch in the reverse order of the removal procedure 6 Refit the panels in their correct positions 7 Plug in the icemaker or connect the power source Fig 11 Float Switch Lift off ...

Page 50: ...he Connector of the Bin Control Switch lead black covered with a silicone hose and remove the lead wire from the Grommet 4 Loosen the Thumbscrew on the right side 5 Remove the Thumbscrew on the left side Shift the Bin Control Switch to the left to remove 6 Refit the removed parts in the reverse order of the removal procedure 7 Plug in the icemaker or connect the power source Fig 13 Remove Loosen S...

Page 51: ...s Do not use any sealant other than the above 8 Attach the new Thermistor in position on the Suction Pipe and press down the Thermistor Holder over the Thermistor Be careful not to damage the Thermistor lead Cover the parts with the Insulation and secure them with the Ties Keep the Thermistor inside the Thermistor Holder After the Thermistor Holder is fitted do not pull the Thermistor lead to move...

Page 52: ...oved parts in the reverse order of the removal procedure Note After replacing the components inside the Control Box connect and tie the wires properly in their correct position Especially make sure that the Harness does not press the Push Buttons on the Control Board Fig 15 Screw Control Box Power Relay Transformer Control Board Power Switch Fuse Fuse Holder Pull toward you ...

Page 53: ...Terminal and remove the Nut securing the Fuse Holder 2 Install the new Fuse Holder in the reverse order of the removal procedure d CONTROL BOARD 1 Disconnect all the Connectors 2 Pull the Tab to release the Control Board 3 Lift off the Control Board 4 To refit the Control Board fit its four corner holes on the positioning lugs inside the Control Box and secure the Control Board with the Tab 5 Chec...

Page 54: ... new Transformer in the reverse order of the removal procedure 15 WATER TANK 1 Drain out the Water Tank by leaving the Control Switch in the SERVICE position and the Service Switch in the DRAIN position for several tens of seconds 2 Unplug the icemaker or disconnect the power source Remove all ice from the Storage Bin 3 Disconnect the Overflow Pipe 4 Remove the two Thumbscrews Pull the Water Tank ...

Page 55: ...cal Flange Notch Stopper 17 SEPARATOR IMPORTANT 1 The Front Separator and Rear Separator are attached to the Evaporator Bracket with different lengths of Pins The Front Separator Pins 12 7 mm are longer than the Rear Separator Pins 9 8 mm Do not misplace the Front and Rear Separators 2 Do not attach the Separators upside down or inside out Make sure that the side printed with THIS SIDE UP faces up...

Page 56: ...of the Evaporator Bracket toward the center See Fig 18 Note Be careful not to break the Pins 6 The Rear Separator is hooked on the groove in the Evaporator Bracket Remove the Rear Separator by lifting it up and down See Fig 18 7 Refit the Separators in the reverse order of the removal procedure Check that the Separators are fit correctly and can swing like a pendulum 8 Plug in the icemaker or conn...

Page 57: ...pray Pipe and Spray Guide from the Evaporator Plate See Fig 19 6 Refit the removed parts in the reverse order of the removal procedure Check for water leaks IMPORTANT Fit the Spray Guide securely and tightly on the Evaporator fin Otherwise cloudy or irregular ice cubes or performance reduction may be caused 7 Plug in the icemaker or connect the power source Fig 19 Silicone Hose Spray Tube Spray Gu...

Page 58: ...Open the Door 2 Unscrew and remove the Hinges on both sides and remove the Door 3 Refit the removed parts in the reverse order of the removal procedure Check that the Door opens and closes smoothly Fig 20 Door Hinge ...

Page 59: ...fety and maximum effectiveness use cleaning and sanitizing solutions immediately after dilution a CLEANING PROCEDURE 1 Dilute 148 ml of recommended cleaner Hoshizaki Scale Away or LIME A WAY Economics Laboratory Inc with 3 8 lit of water 2 Remove the Louver Open the Door and remove all ice from the Evaporator and the Storage Bin Note To remove cubes on the Evaporator move the Control Switch on the...

Page 60: ... remove them from the Water Tank They are snapped in place See Fig 17 16 Same as step 1 17 Wash the Bin Control Switch Water Tank Float Switch Cube Guide and Overflow Pipe by using a nylon scouring pad brushes and the cleaning solution In addition to the removed parts also wash the bin liner and Bracket L R with the solution 18 Discard the cleaning solution and rinse the parts thoroughly with wate...

Page 61: ...hree times to rinse thoroughly 12 Flush the Storage Bin with water 13 Move the Control Switch to the ICE position and start the automatic icemaking process 14 Close the Door Replace the Louver in its correct position 2 MAINTENANCE a EXTERIOR PANELS To prevent corrosion wipe the exterior occasionally with a clean and soft cloth Use a damp cloth containing a neutral cleaner to wipe off all oil or di...

Page 62: ...emove the ice from the Storage Bin The Storage Bin should be cleaned and dried Drain the icemaker using air or carbon dioxide to prevent damage to the water supply lines at sub freezing temperatures Shut off the icemaker until the proper ambient temperature is resumed When the icemaker is not used for two or three days it is sufficient to only move the Control Switch to the OFF position unless the...

Page 63: ...ol Switch to the OFF position 3 Open the Door Remove all ice from the Storage Bin and clean the Storage Bin 4 Close the Door 5 Replace the Louver in its correct position 6 Turn off the power supply at the breaker box Fig 21 Inlet Hose Washer Stop Valve ...

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