Hoshizaki L024 Service Manual Download

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CUBE ICE DISPENSER

SERVICE MANUAL

DIM-40DE-HC

Summary of Contents for L024

Page 1: ...CUBE ICE DISPENSER SERVICE MANUAL DIM 40DE HC ...

Page 2: ...FREEZE COMPLETION CONTROL 11 g WATER SUPPLY CONTROL 14 h AMBIENT TEMPERATURE CORRECTION 14 i DIMPLE DIAMETER SETTING 14 j BIN CONTROL CYCLE 15 k RESET SWITCH 15 l 7 SEGMENT LED 16 3 MODE SETTING 17 a WATER CIRCUIT FLUSH MODE 17 b MAINTENANCE MODE 18 c DISPLAY MODE LOG CLEARING 24 d MODEL CODE SETTING MODE 25 4 7 SEGMENT DISPLAY 27 a NORMAL MODE 27 b MAINTENANCE MODE 27 c DISPLAY MODE 29 5 ERROR CO...

Page 3: ...46 3 PERFORMANCE DATA 47 VI SERVICE DIAGNOSIS 48 1 NO ICE PRODUCTION 48 2 LOW ICE PRODUCTION 50 3 ABNORMAL ICE 50 4 OTHERS 51 VII REMOVAL AND REPLACEMENT OF COMPONENTS 52 1 PANELS 52 a FRONT PANEL 52 b TOP PANEL 52 c AIR GUIDE 52 d REFRIGERATOR COVERS 53 e SWITCH BOX 53 2 SERVICE FOR REFRIGERANT LINES 54 a SERVICE INFORMATION 54 b REFRIGERANT RECOVERY 55 c EVACUATION AND RECHARGE 55 3 COMPRESSOR 5...

Page 4: ...iii 12 CONTROLLER BOARD 65 a MODIFICATION 65 b REPLACEMENT 66 13 THERMISTOR FOR CUBE CONTROL 67 14 FAN MOTOR 68 15 GEAR MOTOR 68 16 BIN CONTROL SWITCH 69 17 PUSH BUTTON SWITCH AND PILOT LAMP 70 ...

Page 5: ...I GENERAL INFORMATION 1 DIMENSIONS CONNECTIONS ...

Page 6: ...2 2 CONSTRUCTION a OVERVIEW Top Panel Nameplate Push Button Power Switch Removable Side Access Panel Front Panel Pilot Lamp Spout Ice Station Air Filter Switch Cover Louver ...

Page 7: ...ulator Evaporator Water Tank Drain Pan Bin Control Switch Auger Drain Outlet Control Box Rear Access Panel Compressor Hot Gas Valve Drier Water Supply Pipe Pump Motor Actuator Motor Gear Motor Drain Hose Power Switch Air Guide Condenser Adjustable Leg Fan Motor ...

Page 8: ...4 II CONTROLLER BOARD 1 CONFIGURATION Part Number P01873 02 Evaporator Electroless Nickel Plated a CONTROLLER BOARD LAYOUT Main Board Sub Board Combination ...

Page 9: ...l Thermistor Input XA Connector 2P Data Input Output PA Connector 8P Reset Button 10 5V AC Input VH Connector 2P Close Button Open Button AC Low Voltage DC Circuit AC High Voltage Circuit Actuator Drive Output VH Connector 3P 220 240V AC Input VYH Connector 3P Pump Motor Hot Gas Valve Fan Motor Water Valve Compressor AC Relay Drive Output VH Connector 9P Fuse P01992 01 6 3A ...

Page 10: ...ndle with care Disconnect the connector CN13 on the board Remove the screw and the thermistor holder on the evaporator Immerse the sensor part in a glass containing ice and water for 5 minutes Check the resistance between CN13 connector pins Replace the thermistor in its correct position Connect CN13 5 7 kilohms 2 Bin Control Switch Manually set the micro switch in the TRIP and RESET positions and...

Page 11: ...al cycle Maintenance mode press 3s Freeze setting mode Display mode press 3s Freeze setting mode Flush mode press 3s Check contents Water pan starts to open Actuator motor stops Water pan closing Return to normal mode press 3s Normal mode Freeze temp setting mode Same as normal mode except display change on appears after no switch operation for 30s Maintenance mode Display mode Flush mode ...

Page 12: ...is pressed during the 30 second standby time the unit resets soft start and immediately starts operation b WATER PAN OPENS 1 The hot gas valve opens the actuator motor starts and the water pan starts to open 2 After 20 seconds the water valve opens to supply defrosting water water pan cleaning water for a specific time The defrosting water supply time varies between the water temperatures above an...

Page 13: ...e fails to open the unit may stop with the E2 error The defrost completion temperature is adjustable in the maintenance mode see 3 b MAINTENANCE MODE d WATER PAN CLOSES 1 When the cube control thermistor senses the evaporator temperature above the defrost completion temperature the hot gas valve closes the fan motor starts and the water pan starts to close 2 The closing backup timer starts countin...

Page 14: ...ermined target integrated values are reached The target integrated values temperature and time for the freeze completion are adjustable in the maintenance mode see 3 b MAINTENANCE MODE 5 To reduce ice forming on the water pan when the freeze completion rate reaches 100 at an ambient temperature below 30 C the hot gas valve opens and closes two times for a specific time to raise the water pan tempe...

Page 15: ...grated values reach the target the freeze cycle completes Cube control thermistor temp Time 12 min 0 C Integration begins Integration Temperature 18 C when ice starts to form Freeze cycle time min As the previous freeze completion control depended on the freeze completion temperature only the dimple size varied in 1 spring fall 2 summer and 3 winter even at the same freeze completion temperature F...

Page 16: ...ves finds that the red colored area varies in different seasons Note It is assumed that the water temperature is the same in these examples as the time to reach the zero degrees mark is different 1 Spring fall 2 Summer Dimple size 5mm Smaller dimple size 18 C 18 C Freeze cycle time min Freeze cycle time min 3 Winter Larger dimple size 18 C Freeze cycle time min This area varies Evaporator temp C E...

Page 17: ...viding the calculated energy to icemaking water can produce ice with fixed dimple size not affected by ambient conditions Actually after the evaporator temperature becomes 0 C the icemaker adds thermistor sensed temperature every second and continues ice production until the energy value calculated above target freeze completion value is reached To have stable ice production it is necessary to cal...

Page 18: ... a predetermined offset value plus the cube control thermistor temperature after icemaking water is supplied as mentioned in 1 and the pump motor runs for 30 seconds The water temperature offset value is adjustable in the maintenance mode see 3 b MAINTENANCE MODE h AMBIENT TEMPERATURE CORRECTION 1 At low ambient temperatures the dimple diameter of ice cubes is increased by a predetermined rate bet...

Page 19: ...econds and the water pan starts to open in the initial cycle 2 When the reset switch is pressed and released during operation water pan opening or closing defrost or freeze cycle the icemaker returns to the initial cycle within 3 seconds and the water pan starts to open The above control is available because the water pan position is detected by the hall IC not by a change switch 3 When the reset ...

Page 20: ... an error occurs the display flashes the applicable error code 3 In the maintenance mode the display shows varioussettings 4 In the display mode the display shows various values and the errorhistory 5 In the water circuit flush mode the segments of the ones digit light up in rotation See 4 7 SEGMENT DISPLAY for further details ...

Page 21: ...es and the display shows E1 If the cube control thermistor senses a temperature below the defrost completion temperature the water pan keeps open the defrost backup timer operates and the display shows E2 To reset press the service 2 switch for 3 seconds Note 1 The freeze backup timer and defrost backup timer are available in the water circuit flush mode As the compressor is off in the flush mode ...

Page 22: ...ows 1 2 Press the service 1 switch to increase the number and the service 2 switch to decrease the number 3 Press the reset switch to select the desired number The current set value flashes in the display 4 Press the service 1 switch to increase the set value and the service 2 switch to decrease the set value 5 Press the reset switch to select the desired value The display shows the number again T...

Page 23: ...sec 1 17 Defrosting water control 0 normal control 1 segmented control 1 18 Defrost completion temp correction 0 to 20K 1 Others 21 Double stack bin control 0 No 1 Yes 1 22 Refrigeration unit operation in bin control cycle 0 No 1 Yes 1 Model 30 Type 0 water cooled large 1 small 2 medium large 3 separate 1 Defrost cycle low temp control 34 Operating temp 40 to 70 C 1 Water regulator 36 Water regula...

Page 24: ...temp conditions like at 1 C wt 5 C based on integrated value inside controller board determined by constants 1 and 2 6 Freeze backup timer Timer setting to forcibly complete freeze cycle if cube control thermistor cannot sense freeze completion temp Water supply 10 Defrosting water supply time water temp less than 13 C Time to supply defrosting water to melt ice on water pan at water supply temp l...

Page 25: ...or 37 Compressor output selection Selection between AC supply and DC supply normal setting AC supply Transformer voltage drop is too large to input both Slush ice 50 Pump off time Pump off time for slush ice control to stop pump after 2 min controller board P01873 01 or 30 sec P01873 02 at evaporator temp of 3 to 4 C quickly refrigerate evaporator before icemaking water supercools and form ice cor...

Page 26: ...d after 20 sec in defrost cycle Prevent ice bridge in bin by delaying ice dropping time it is deactivated on this model Low temp in defrost cycle 74 Operating temp Upper temperature limit at the beginning of defrost cycle High Pressure 80 Sensed temp Temperature sensed by condenser thermistor ...

Page 27: ...ue 5 14 Full partial drain lush selection 0 15 Additional icemaking water supply time 0 17 Defrosting water control 0 18 Defrost completion temp correction 0 Other 21 Double stack bin control 1 22 Refrigeration unit operation in bin control cycle 0 Model 30 Type 1 Defrost cycle low temp control 34 Operating temp 45 Water regulator 36 Water regulator error detecting temp 0 Compressor 37 Compressor ...

Page 28: ...he value is displayed Display Mode List No Item Description Clear n1 Freeze cycle time count up min 0 to 99 min No n2 Freeze cycle completion rate 0 to 100 00 100 No n3 Current cube control thermistor temp Rounded to the nearest whole number No n4 Current ambient thermistor temp Rounded to the nearest whole number No n5 Water temp presumed H for 13 C or more L for less than 13 C No n6 Current cond...

Page 29: ...e than 3 seconds the display mode starts and the display shows n1 2 Press the service 1 or service 2 switch to have h6 in the display 3 Press the reset switch The current memorized model code appears in the display 4 Press the service 1 and service 2 switches together for 15 seconds The display shows 00 When the controller board P01873 02 is used the hyphen on the top left lights up 5 Press the se...

Page 30: ...26 Controller Board P01873 02 Controller board replaced Chosen model code displayed Model code memorized Model Code List 1st Digit 2nd Digit Model N 0 1 2 3 4 5 6 7 8 9 A B C D E DIM 40DE HC F ...

Page 31: ...E1 Abnormal freeze cycle E2 Abnormal defrost cycle EE Other See 5 ERROR CODES Water circuit lush b MAINTENANCE MODE No Item Display example 1 Defrost completion temp 16 C 2 Integrated constant 1 temp 18 C 18 5 C Dot appears for value with 5 as in 18 5 C 3 Integrated constant 2 time 21 min 4 Ambient temp correction operating temp for integrated value Same as No 1 ...

Page 32: ...t completion temp correction Same as No 1 21 Double stack bin control 0 1 22 Refrigeration unit operation in bin control cycle 30 Model type Same as Nos 21 and 22 Setting range from 0 to 3 34 Defrost cycle low temp control operating temp Same as No 1 36 Water regulator error detecting temp Same as No 1 37 Compressor output selection Same as Nos 21 and 22 50 Slush ice pump off time Same as No 3 uni...

Page 33: ...mp 13 C or more Water temp less than 13 C n6 Current condenser thermistor temp Same as n3 and n4 h1 Last freeze cycle time min 21 min h2 Number of freeze cycles If counted number of cycles is 162100 h3 Total number of freeze cycles h4 Error log If 3 errors from latest to oldest are E4 E3 and E1 h5 Software version Ver 1 0A is displayed as follows alternately for 1 sec ON and 0 5 sec OFF h6 Default...

Page 34: ...ithin 60 seconds and 3 minutes have passed even with opening failure control Halt Press reset switch Unit resumes operation after 60 minutes and repeats the above error Shut down E4 Water pan closing error Water pan has not fully closed within 50 seconds opened and started to close again but failed to close fully within 50 seconds Halt Press reset switch Unit resumes operation after 60 minutes and...

Page 35: ...sconnected Reconnect E2 Hot gas valve Opening failure Replace Controller board Defective Replace E3 Actuator motor Defective Replace Controller board Relay contact failure Replace Defective Replace E4 Actuator motor Defective Replace Controller board Relay contact failure Replace Defective Replace E5 Hot gas valve Closing failure Replace Controller board Relay contact failure Replace E9 Condenser ...

Page 36: ...ways touch the metal part of the icemaker before servicing 6 Handle the controller board by the edges only 7 Do not drop the controller board on the floor b CHECKING CONTROLLER BOARD 1 Before checking the controller board check the cube control thermistor and bin control switch for proper operation See BEFORE CHECKING CONTROLLER BOARD in the service manual for the applicablemodel 2 If the above pa...

Page 37: ...73 02 is used the hyphen on the top left lights up The code 00 does not belong to any model 7 Press the service 1 switch to increase the first digit in the 7 segment display and the service 2 switch to increase the second digit The digit changes in the following order 0 1 2 3 4 5 6 7 8 9 A B C D E F H Set the proper model code according to the model code list provided with the replacement controll...

Page 38: ...ed memory The controller board will then need to be reprogrammed select and memorize the correct code for the machine using steps 7 and 8 above Note 1 Be sure to get static free before servicing the controllerboard 2 Do not touch the controller board with wet or dirtyhands 3 Do not impact the controller board If it drops on the floor do not use it 4 Do not hold the leads when disconnecting theconn...

Page 39: ...13 C Y S1 Compressor Water valve Actuator motor Hot gas valve Pump motor Fan motor Bin control switch ON OFF ON OFF Up OFF Down ON OFF ON OFF ON OFF ON OFF Soft start 30S Initial cycle Freeze cycle Defrost cycle Freeze cycle 2 22s 2 20s Cube control thermistor temp C Freeze completion rate 0 C o 100 60 30 0 7 segment display 8 TIMING CHART 35 ...

Page 40: ...ump motor Fan motor Bin control switch Up OFF Down ON OFF ON OFF ON OFF ON OFF Cube control thermistor temp C Freeze completion rate 7 segment display 0 C 100 60 30 0 Freeze cycle Defrost cycle Bin control cycle Defrost cycle Freeze cycle 1 7s 10s 2 22s 20s 30s 2 20s 10s 80s Defrost completion temp Freeze completion temp 36 ...

Page 41: ...1 When the power is turned on or the unit resumes operation after a bin control cycle the water temperature is considered less than 13 C and the water valve opens for 15 seconds to supply defrosting water If the water temperature is normal the water pan opens and immediately starts to close again In this case defrosting water flows for 7 seconds 2 The pump motor starts after the water pan closes a...

Page 42: ...e water supply tap to completely drain out dirty water 7 Turn on the power switch to restart the ice dispenser Reattach switch cover 2 PREPARING THE ICE DISPENSER FOR LONG STORAGE 1 Press the push button to dispense all ice from the storagebin 2 Follow the steps 1 to 5 in 1 IN CASE OF DIRTY WATER 3 Blow out the water supply line immediately after the water pan has opened Note This procedure is nec...

Page 43: ...by using a vacuum cleaner When severely clogged use warm water and a neutralcleaner to wash the air filter 3 Rinse and dry the air filter thoroughly Air Filter Louver Fig 2 WARNING 1 Before carrying out any cleaning or maintenance operations unplug the ice dispenser from the electrical supply network 2 This appliance must not be cleaned by use of a water jet CAUTION Before handling or using cleani...

Page 44: ...e bin liner with clean water 8 Refit the drain pan and front panel in their correct position Run the bin control switch lead through the recess in the drain pan 4 ICE STATION DRAIN TRAP 1 Lightly lift the cap at the center of the ice station and turn it counterclockwise 2 Lift the cap straight off 3 Soak the cap in warm water containing a neutralcleaner for at least 3 minutes Rinse thoroughly with...

Page 45: ...tap 4 Remove the top panel and front panel 5 Disconnect the inlet hose from the water valve 6 Remove the mesh filter from the water valve 7 Clean the mesh using a brush 8 Replace the mesh and inlet hose in their correct positions 9 Open the shut off valve 10 Plug in the icemaker or connect the power source 11 Check for leaks 12 Replace the panels in their correct positions Fig 6 ...

Page 46: ...n the water pan 7 Unplug the ice dispenser or disconnect the power source when the water pan has fully opened NOTICE 1 Use the cleaners and sanitizers recommended by Hoshizaki Contact your local Hoshizaki office for further details The instructions below give an example of those recommended cleaners and sanitizers 2 Never mix cleaning and sanitizing solutions in an attempt to shorten cleaning time...

Page 47: ...ote Sanitizing should always be completed after cleaning or alternately as an individual procedure if conditions exist to make it necessary 13 Use a suitable container to dilute 44 ml of 5 25 sodium hypochlorite solution with 11 4 lit of water Alternatively use the Hoshizaki recommended sanitizer as directed by the relevant instructions 14 Close the water supply tap Plug in the ice dispenser or co...

Page 48: ...t the above step 17 at least three times to rinse thoroughly 19 Plug in the ice dispenser or connect the power source Check for proper icemaking operation 20 Complete storage bin cleaning as detailed in IV 3 DRAIN PAN STORAGE BIN FRONT PANEL 21 Replace the front panel and top panel in their correctpositions ...

Page 49: ...illary Tube Water Valve Evaporator Accumulator Actuator Motor Controller Board Pump Motor Ice Station Trap Water Tank Bin Control Switch Drain Pan Storage Bin Drain Outlet U Trap Fan Motor Condenser Drier Hot Gas Valve Compressor Water Circuit Refrigerant Circuit Strainer ...

Page 50: ...R Y 1 0µF R R GROUND R BR BK START RELAY START CAP S M ACT MOTORBOARD HOLEIC R R O O CN11 RELAY X5 RELAY X4 R CAP BU BK P BU BU PUMP MOTOR BK OVER LOARD C COMPRESSOR BU BU RELAY HOTGAS SOLENOID VALVE PUSH SWITCH BK BK X3 BU R BR Y NEON LAMP GEAR MOTOR ACT MOTOR BR CN16 BR RELAY X2 FAN MOTOR V CAP 0 4µF V RELAY X7 RELAY WATERSOLENOIDVALVE W WHITE R RED CAP 0 4µF X1 O ORANGE P PINK W GY GY CN5 RELAY...

Page 51: ...Hole Diameter mm 5 15 5 15 5 15 5 DIM 40DE HC Ice Production kg d 39 1 43 2 34 2 37 2 26 6 30 2 20 5 Freeze Cycle Time min 20 0 23 9 32 7 43 6 Defrost Cycle Time min 4 0 2 9 1 9 1 5 Water Consumption lit h 7 8 4 4 3 4 2 6 Electric Consumption W 217 240 280 297 Head Pressure peak bar Note The sound output of this appliance is below 70dB ...

Page 52: ...NG CONTROLLER BOARD h Hot gas solenoid valve 1 Continues to open in freeze cycle and high temperature safety backup timer operates 1 Check for power OFF in freeze cycle and replace i Water solenoid valve 1 Mesh filter or orifice gets clogged and water supply cycle does not finish 1 Clean 2 Coil winding opened 2 Replace 3 Wiring to water valve 3 Check for loose connection or open and replace j Cont...

Page 53: ...vel in water tank too low 1 Clean c Water system 1 Water leaks 1 Check connections for water leaks and repair 2 Clogged 2 Clean d Pump motor 1 Motor winding opened 1 Replace 2 Bearing worn out 2 Replace 3 Wiring to pump motor 3 Check for loose connection or open and replace 4 Defective or bound impeller 4 Replace and clean e Controller board 1 Defective 1 See II CONTROLLER BOARD f Discharge tube 1...

Page 54: ...ctly c Hot gas valve 1 Defective 1 Replace d Thermistor controller board 1 See II CONTROLLER BOARD e Fan motor 1 Runs during defrost cycle 1 Check wiring 3 ABNORMAL ICE PROBLEM CHECK POSSIBLE CAUSE REMEDY 1 Large hole cubes a Water supply line 1 Low pressure 1 Check for recommended pressure b Ambient or water temperature 1 Too high 1 Check for recommended temperatures c Air filter condenser 1 Clog...

Page 55: ...OSSIBLE CAUSE REMEDY 1 Ice dispenser will not stop when bin is filled with ice a Bin control switch 1 Out of position 1 Place in position 2 Bad contacts 2 Check for continuity and replace b Controller board 1 See II CONTROLLER BOARD 2 Abnormal noise a Pump motor 1 Bearing worn out 1 Replace b Actuator motor 1 Gears worn out 1 Replace c Fan motor 1 Bearings worn out 1 Replace 2 Fan blade deformed 2...

Page 56: ...efit the front panel reconnect the connectors and drain hose hook the top onto the top panel and secure the bottom with thescrew b TOP PANEL 1 Remove the front panel 2 Unscrew and unhook the rear of the top panel and lift itoff 3 To refit the top panel check that the insulation panel is securely in place before hooking the backside square hole of the top panel on the rear of the cabinet c AIR GUID...

Page 57: ...2 Remove the two machine screws securing the control box and pull out the control box 3 Remove the four machine screws securing the refrigerator cover and take it off 4 To refit the refrigerator cover reverse the above procedure e SWITCH BOX The switch box is located at the top of the refrigerator cover to enclose the power switch 1 Remove the four machine screws securing the switchbox 2 To refit ...

Page 58: ...air the drier must be replaced Be sure to use a drier designed for R290 3 Handling of Handy Flux R290 Repair of the refrigerant circuit needs 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 R290 When processing the copper ...

Page 59: ...uddenly react with oxygen and explode Be sure to use nitrogen to prevent explosion b REFRIGERANT RECOVERY The R290 refrigerant has almost no effect on global warming so can be released to outdoors atmosphere without risk to the environment Recovery should only be considered if the unit cannot be taken outdoors to evacuate the circuit If R290 is recovered in a refrigerant recovery cylinder for R404...

Page 60: ...re in the liquid charge Close the valve on the charging cylinder before closing the high side manifold valve Any remaining liquid in the line can be charged into the low side Note Always charge in the liquid stage as many refrigerants are blends and vapor charging will affect the blend consistency 7 Do not charge more than 150g of R290 8 Turn on the ice dispenser Release the high side access conne...

Page 61: ...circuit to detect any gas left inside the circuit 7 Evacuate the refrigeration circuit for 30 minutes to remove any gas left inside the circuit Note Attach an access valve for recharging the unit charged by a lock ring 4 COMPRESSOR 1 Unplug the ice dispenser or disconnect the power source 2 Remove the front panel and rearmesh 3 Recover the refrigerant and store it in a proper container if required...

Page 62: ... correct position 17 Replace the front panel and rear mesh in their correctpositions 18 Plug in the ice dispenser or connect the powersource Note Hoshizaki recommends that compressor starting electrics are always replaced at the same time as the compressor 5 DRIER 1 Unplug the ice dispenser or disconnect the powersource 2 Remove the rear mesh 3 Recover the refrigerant and store it in a proper cont...

Page 63: ...AN ASSEMBLY 5 Disconnect the solder connections on the evaporator using brazing equipment 6 Remove the four nuts holding theevaporator 7 Install the new evaporator and secure it with the bolts collars spacers andnuts 8 Remove and replace the drier See 4 DRIER 9 Braze pipes with nitrogen gas lowing at a pressure of 0 2 0 3 bar 10 Check for leaks using nitrogen gas 10 bar and soapbubbles 11 Evacuate...

Page 64: ...DRIER 9 Check for leaks using nitrogen gas 10 bar and soapbubbles 10 Evacuate the system and charge it with refrigerant See 2 c EVACUATION AND RECHARGE 11 Attach the solenoid coil to the valve body and secure it with the screw 12 Connect the leads 13 Replace the panels in their correctpositions 14 Plug in the ice dispenser or connect the powersource IMPORTANT Always install a new drier every time ...

Page 65: ...emove the two spring hook screws from the watertank 8 Remove the screws and the water panbrackets 9 Remove the pump suction and dischargetubing 10 Remove the pump motor bracket from the water plate 11 Install the new water plate or water tank in the reverse order of the removal procedure 12 Replace the panels in their correct positions 13 Plug in the ice dispenser or connect the power source INDEX...

Page 66: ...and check for leaks 9 Replace the panels in their correctpositions 10 WATER VALVE 1 Close the water supply tap 2 Unplug the ice dispenser or disconnect the powersource 3 Remove the top panel and front panel 4 Disconnect the receptacle leads from the water valve 5 Remove the valve outlet tubing by releasing theclamp 6 Remove the inlet hose and water valve 7 Install the new valve in the reverse orde...

Page 67: ...e the actuator motor bracket 7 Remove the spring pin securing the shaft to thecam 8 Remove the actuator motor 9 Install the new actuator motor in the reverse order of the removal procedure 10 Check that the cam can move in the properrange 11 Replace the panels in their correctpositions 12 Plug in the ice dispenser or connect the powersource 1 Actuator Motor 2 Cam A 3 Spring Pin 4 Spring 5 Actuator...

Page 68: ...ch on the control box to open the water pan 3 Unplug the ice dispenser or disconnect the powersource 4 Remove the extension spring from the cam arm B 5 Remove the split pin from the cam shaft 6 Remove the cam arm B 7 Install the new cam in the reverse order of the removalprocedure 8 Replace the panels in their correctpositions 9 Plug in the ice dispenser or connect the powersource ...

Page 69: ...64 28 14 16 16 21 23 18 Fig 11 22 a 14 4 1 2 L b 11 10 3 13 9 5 b 17 15 15 15 16 13 12 27 20 22 23 19 18 21 24 28 25 a 21 28 26 ...

Page 70: ...g Screw 19 Spacer 20 Washer 25 Split Pin 13 CONTROLLER BOARD a MODIFICATION 1 Check that the service board package includes Controller Board 1 pc Label 1 pc Instruction Sheet 1 pc 2 Modify the service board referring to the instruction sheet attached IMPORTANT A single type controller board is supplied as a service board Some modifications and adjustment will be required to fit the ice dispenser m...

Page 71: ... reverse order of the removal procedure 6 Replace the panel in its correctposition 7 Plug in the ice dispenser or connect the powersource 1 Control Box A 2 Control Box B 3 Tapping Screw 5 Board Support 6 Controller Board 7 Transformer 8 Power Relay 9 Tapping Screw 10 Capacitor 11 Tapping Screw 12 Capacitor 13 Fuse Holder 14 Fuse 15 Grommet 16 Grommet 17 Machine Screw 18 Cube Control Thermistor 19 ...

Page 72: ...e evaporator front side 5 Install the new thermistor in the reverse order of the removal procedure by using a sealant high thermal conduct type See Fig 13 Note Recommended sealant is KE4560RTV manufactured by Shin Etsu Silicones When other type of sealant used the cube size and performance will be changed Do not use silicone sealant as this will insulate the thermistor Sealant Holder Sealant Holde...

Page 73: ...ions 9 Plug in the ice dispenser or connect the powersource 16 GEAR MOTOR 1 Press the push button to dispense all the ice in the storagebin 2 Remove the front panel and turn off the power switch 3 Remove the four machine screws securing the motor bracket and take off the gear motor together with the auger 4 Take off the motor cover and remove the three machine screws securing the ice guide 5 Move ...

Page 74: ...icroswitch fit the mounting holes of the microswitch and switch base and secure them with the u nut 4 To refit the switch base put the switch case shaft left into the left side mounting hole in the switch base Use the u notch on the switch base to thrust the switch case shaft right into the right side mounting hole in the switch base Switch Base Switch Case Fig 15 Motor Bracket Machine Screw Motor...

Page 75: ...Detach the push button switch from the ice station 8 Remove the supporter from the new push button switch Fit the housing screw into the hole on the ice station and attach the stopper to the end of the housing screw 9 Loosen the nut on the housing screw 10 Attach the supporter to the end of the plunger 11 Fit the push button while retaining the plunger in place between the plunger and the microswi...

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Hoshizaki L024, Service Manual

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