Hoshizaki DIM-30DE-2 Service Manual
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Hoshizaki DIM-30DE-2 Service Manual

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CUBE ICE DISPENSER
DIM-30DE-2
SERVICE MANUAL
E2HA-990 (073120)

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Summary of Contents for Hoshizaki DIM-30DE-2

  • Page 1 CUBE ICE DISPENSER DIM-30DE-2 SERVICE MANUAL E2HA-990 (073120)

  • Page 2: Table Of Contents

    CONTENTS PAGE I. GENERAL INFORMATION --------------------------------------------------------------------------1 1. DIMENSIONS/CONNECTIONS ----------------------------------------------------------------1 2. CONSTRUCTION ----------------------------------------------------------------------------------3 [a] OVERVIEW --------------------------------------------------------------------------------------3 [b] WATER CIRCUIT AND MACHINE COMPARTMENT ---------------------------------5 II. CONTROLLER BOARD -----------------------------------------------------------------------------6 1. CONFIGURATION ---------------------------------------------------------------------------------6 [a] CONTROLLER BOARD LAYOUT ---------------------------------------------------------6 [b] INPUT/OUTPUT LAYOUT -------------------------------------------------------------------7 [c] BEFORE CHECKING CONTROLLER BOARD ----------------------------------------8 [d] SWITCH OPERATION ------------------------------------------------------------------------9 [e] VERSION COMPARISON ----------------------------------------------------------------- 11 2.
  • Page 3 III. OPERATING INSTRUCTIONS ------------------------------------------------------------------ 41 1. IN CASE OF DIRTY WATER ------------------------------------------------------------------ 41 2. PREPARING THE ICE DISPENSER FOR LONG STORAGE ------------------------ 42 IV. MAINTENANCE INSTRUCTIONS ------------------------------------------------------------- 43 1. MACHINE EXTERIOR, SPOUT, ICE STATION ------------------------------------------- 43 2. AIR FILTER ----------------------------------------------------------------------------------------- 43 3.
  • Page 4 12. CONTROLLER BOARD ------------------------------------------------------------------------ 71 [a] MODIFICATION ------------------------------------------------------------------------------ 71 [b] REPLACEMENT ----------------------------------------------------------------------------- 72 13. THERMISTOR FOR CUBE CONTROL ----------------------------------------------------- 73 14. FAN MOTOR -------------------------------------------------------------------------------------- 74 15. GEAR MOTOR ------------------------------------------------------------------------------------ 74 16. BIN CONTROL SWITCH ----------------------------------------------------------------------- 75 17. PUSH BUTTON SWITCH AND PILOT LAMP --------------------------------------------- 76...

  • Page 5: General Information

    I. GENERAL INFORMATION 1. DIMENSIONS/CONNECTIONS Auxiliary code: K0 or earlier...
  • Page 6 Auxiliary code : K1 or later...

  • Page 7: Construction

    2. CONSTRUCTION [a] OVERVIEW Auxiliary code: K0 or eariler Top Panel Nameplate Front Panel (Upper) Front Panel (Lower) Pilot Lamp Push Button Spout Power Switch Ice Station Removable Side Access Panel Air Filter Switch Cover Louver...
  • Page 8 Auxiliary code : K1 or later Top Panel Nameplate Front Panel Push Button Pilot Lamp Spout Power Switch Ice Station Removable Side Access Panel Air Filter Switch Cover Louver...

  • Page 9: [B] Water Circuit And Machine Compartment

    [b] WATER CIRCUIT AND MACHINE COMPARTMENT Water Supply Inlet Accumulator Water Valve Evaporator Water Supply Pipe Water Tank Pump Motor Drain Pan Actuator Motor Bin Control Switch Auger Gear Motor Drain Outlet Drain Hose Control Box Power Switch Rear Access Panel Air Guide Compressor Hot Gas Valve...

  • Page 10: Controller Board

    II. CONTROLLER BOARD 1. CONFIGURATION Part Number P01873-01 P01873-02 Evaporator Tin plated Electroless nickel plated [a] CONTROLLER BOARD LAYOUT Main Board Sub Board Combination...

  • Page 11: [B] Input/Output Layout

    [b] INPUT/OUTPUT LAYOUT Hall IC Input XA Connector (4P) Bin Control Switch / Pressure Switch / Condenser Thermistor Input XA Connector (6P) Cube Control Thermistor Input XA Connector (2P) 7-Segment Double- Digit Display Data Input/Output PA Connector (8P) Reset Button 10.5V AC Input VH Connector (2P) Close Button Open Button...

  • Page 12: [C] Before Checking Controller Board

    [c] BEFORE CHECKING CONTROLLER BOARD BEFORE CHECKING CONTROLLER BOARD Check the power source voltage and the components as shown in the table below. Component Procedure Normal 1. Thermistor 5 -7 kilohms NOTICE (on evaporator) Thermistor sensor part is fragile, Holder glass sealed.

  • Page 13: [D] Switch Operation

    [d] SWITCH OPERATION 1) The following is the switch operation flow in different modes. When pressed and released, the switch detects the operation by its pressing duration. P01873-01 (Ver. 1.8D or earlier) P01873-02 (Ver. 1.2F or earlier) Water pan opens (initial cycle) Freeze setting mode Freeze setting mode Normal mode...
  • Page 14 2) To clear the current model code information and enter the model setting mode, press the up and down switches together for 15 seconds while the model code is indicated in the display mode (see “3. [c] DISPLAY MODE”). P01873-01 (Ver.

  • Page 15: [E] Version Comparison

    [e] VERSION COMPARISON Operator P01873-01 (Ver. 1.9A or later), P01873-01 (Ver. 1.8D or earlier), P01873-02 (Ver. 1.4A or later) P01873-02 (Ver. 1.2F or earlier) End-user ● Control mode: Normal ● Control mode: Normal ● No. 2: Target integrated freeze ● No. 2: Target integrated freeze completion temperature cannot be completion temperature...

  • Page 16: Operation

    Setting number P01873-01 (Ver. 1.9A or later), P01873-01 (Ver. 1.8D or earlier), P01873-02 (Ver. 1.4A or later) P01873-02 (Ver. 1.2F or earlier) No. 71 Setting range: 0 to Setting range: 0 to Hot gas valve ON time to * every 1 sec * every 1 sec prevent ice stuck No.

  • Page 17: [D] Water Pan Closes

    * 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.

  • Page 18: [F] Freeze Completion Control

    [f] FREEZE COMPLETION CONTROL 1) The target integrated values (cube control thermistor temperature and freeze cycle time) are set for freeze completion. * The target integrated freeze completion temperature and time are adjustable in the maintenance mode (see “3. [b] MAINTENANCE MODE”). 2) After the cube control thermistor senses a temperature below 0°C, the cube control thermistor temperature and freeze cycle time are integrated every second.
  • Page 19 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) Comparison of the evaporator temperature curves finds that the red-colored area varies in different seasons.
  • Page 20 This area corresponds to the energy on ice. Making these different areas into one can equalize the dimple size. To calculate the energy required for ice production, the actual ice production area under 0°C in the evaporator temperature curve is approximated into a triangle. This area can be calculated by Time x temperature ÷...

  • Page 21: [G] Water Supply Control

    [g] WATER SUPPLY CONTROL 1) When the water pan closes and the hall IC turns on, the water valve opens to supply icemaking water for a specific time. The icemaking water supply time varies between startup, reset, and the end of bin control cycle. * The icemaking water supply time and additional water supply time are adjustable in the maintenance mode (see “3.

  • Page 22: [J] Bin Control Cycle

    [j] BIN CONTROL CYCLE 1) When the bin control switch stays on for more than 10 seconds, the bin control cycle starts and the icemaker stops. After the bin control switch stays off for more than 80 seconds, the bin control cycle ends and the icemaker restarts. (The hot gas valve opens 30 seconds before the icemaker restarts.) 2) After the bin control cycle ends (or when the power supply is turned on), the water pan starts to open (if the icemaker stopped while the water pan was closing).

  • Page 23: Mode Setting

    6) In the water circuit flush mode, the segments of the ones digit light up in rotation. * See “4. 7-SEGMENT DISPLAY” for further details. 3. MODE SETTING [a] WATER CIRCUIT FLUSH MODE 1) When the down switch is pressed for 3 seconds during operation, the water circuit flush mode starts.

  • Page 24: [B] Maintenance Mode

    [b] MAINTENANCE MODE When the reset switch is pressed for more than 3 seconds, the maintenance mode starts to allow various set values to be checked or adjusted. 1) Press the reset switch for more than 3 seconds while the unit is running. The display shows “1”.
  • Page 25 Maintenance Mode List Item Range Step 1 Defrost completion temp 2 to 20°C 2 Integrated constant 1 (temp) -5 to -40°C 3 Integrated constant 2 (time) 5 to 90 min 4 Ambient temp correction operating 10 to 50°C Basic temp for integrated value 5 Ambient temp correction rate for 10 to 100% (00 = 100) integrated value...
  • Page 26 Maintenance Mode Descriptions Item Description 1 Defrost completion temp Temperature to complete defrost cycle (detected by cube control thermistor). 2 Integrated constant 1 Target integrated value inside controller board is (temp) determined by constants 1 and 2. Temperature in freeze cycle is integrated, and freeze cycle continues until target integrated value is reached.
  • Page 27 Item Description 15 Additional icemaking Time to supply additional icemaking water water supply time required after pump motor starts following normal icemaking water supply time (it is deactivated on this model). 17 Defrosting water control Selection of defrosting water control. When Water supply set to “0”, normal control as described for No.
  • Page 28 Item Description 73 Hot gas valve off time Time to keep hot gas valve closed after 20 sec in defrost cycle. Prevent ice bridge in bin by Ice bridge delaying ice dropping time (it is deactivated on this model). Low temp in 74 Operating temp Upper temperature limit at the beginning of defrost cycle...
  • Page 29 *2. Do not make dimple diameter small. The dimple in ice is necessary and important to repeat the freeze and defrost cycles normally. The Dimple size must be more freeze completion temperature and time are factory than 5 mm adjusted to make the dimple diameter more than 5 mm on average.
  • Page 30 Maintenance Mode Settings DIM-30DE-2 Item Electroless Tin plated nickel plated 1 Defrost completion temp 2 Integrated constant 1 (temp) -16.5 3 Integrated constant 2 (time) 4 Ambient temp correction operating temp Basic for integrated value 5 Ambient temp correction rate for integrated...

  • Page 31: [C] Display Mode (Log Clearing)

    [c] DISPLAY MODE (LOG CLEARING) [c] DISPLAY MODE When the up switch is pressed for more than 3 seconds, the display mode starts to allow various items and logs to be checked, displayed or cleared. 1) Press the up switch for more than 3 seconds while the unit is running. The display shows “n1”.

  • Page 32: [D] Model Code Setting Mode

    Item Description Clear h4 Error log Display up to 5 errors from latest to oldest for 1 sec ON, 0.5 sec OFF, “- -” at the end, then back to latest error. In case of less than 5 errors, display oldest error, “- -”, then back to latest one.
  • Page 33 Controller Board P01873-01 <Controller board replaced> <Chosen model code displayed> <Model code memorised> Controller Board P01873-02 <Controller board replaced> <Chosen model code displayed> <Model code memorised> Model Code List Model Digit Digit DIM-30DE-2...

  • Page 34: Segment Display

    4. 7-SEGMENT DISPLAY [a] NORMAL MODE Item Display Power on Defrost cycle Freeze cycle Bin full Display range from -5.0 to -40.0 Freeze temp setting Flash E1: Abnormal freeze cycle E2: Abnormal defrost cycle EE: Other Error code (See “5. ERROR CODES”) Water circuit flush [b] MAINTENANCE MODE...
  • Page 35 Item Display (example) 5 Ambient temp correction 100% (last 2 digits rate for integrated value only) 6 Freeze backup timer Same as No. 3 10 Defrosting water supply Same as No. 3 (unit: sec) time, water temp less than 13°C 11 Defrosting water supply Same as No.

  • Page 36: [C] Display Mode

    [c] DISPLAY MODE Item Display (example) – n*, h* n1 Freeze cycle time count 21 min or 21% 100% (last 2 digits only) up (min) n2 Freeze cycle completion rate (%) n3 Current cube control -19°C 24°C thermistor temp n4 Current ambient thermistor temp n5 Water temp (presumed) Water temp 13°C or more...

  • Page 37: Error Codes

    5. ERROR CODES [a] ERROR CODES, CAUTION CODES * When the controller board detects an error, the display shows one of the following error, caution and alarm codes in the display mode. Operation depends on the type of error. * The error and caution codes other than E1 and E2 are indicated as “EE” or “EF” in the 7-segment display at the time of occurrence.

  • Page 38: [B] Service Diagnosis

    [b] SERVICE DIAGNOSIS Error Check Possible Cause Remedy Water valve Closing failure Clean or replace Gas leak Repair Refrigeration circuit Clogged capillary Replace heat exchanger Defective Replace Compressor Check supply voltage or replace Starting failure electrical components Compressor relay Coil circuit open Replace Condenser Clogged...

  • Page 39: Troubleshooting

    6. TROUBLESHOOTING IMPORTANT If receiving a service call, ask the user to turn off the power to the ice dispenser and turn it on again, while watching the ice dispenser. This will reset the controller, and in some cases normal operation will resume. [a] INSTRUCTIONS FOR SERVICE ENGINEER 1) Check that the icemaker has been earthed properly.

  • Page 40: Removal And Replacement

    7. REMOVAL AND REPLACEMENT The replacement controller board is in common use for the entire IM_N models (HE). To replace: 1) Unplug the icemaker or disconnect the power source. 2) Remove the front panel and control box cover. 3) Disconnect all the connectors from the controller board. Remove the controller board from the control box.
  • Page 41 * To check the current memorised model code, view in the display mode (press and hold the up switch for 3 seconds – the display changes to “n1”, then press the up switch several times to find “h6”, then press the reset switch and the memorised code appears in the display).

  • Page 42: Timing Chart

    8. TIMING CHART...
  • Page 44 Notes on timing charts (*1, *2, *3) Item DIM-30DE-2 Ambient temp in control 23°C or less *1 Water pan defrost control Hot gas valve on/off time 10/20s *2 Defrosting water supply time (water temp less than 13°C, or initial cycle) *2 Defrosting water supply time (water temp 13°C or more)

  • Page 45: Operating Instructions

    III. OPERATING INSTRUCTIONS 1. IN CASE OF DIRTY WATER Lift off Auxiliary code: K0 or earlier Unlock 1) Remove the switch cover, and turn off the power Flat Blade Screwdriver switch. 2) Close the water supply tap. Fig. 1 3) Unlock the front panel (upper) by turning the keyhole counterclockwise with a flat blade screwdriver.

  • Page 46: Preparing The Ice Dispenser For Long Storage

    7) When water supply is resumed, open the drain valve first. Then, gradually open the water supply tap to completely drain out dirty water. 8) Refit the switch cover. Turn on the power switch to restart the ice dispenser. 2. PREPARING THE ICE DISPENSER FOR LONG STORAGE Auxiliary code: K0 or earlier 1) Press the push button to dispense all ice from the storage bin.

  • Page 47: Maintenance Instructions

    IV. MAINTENANCE INSTRUCTIONS 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 cleaning solutions, check the guidelines on the product for advice on suitable personal protective clothing, gloves, goggles, etc.

  • Page 48: Drain Pan, Storage Bin, Front Panel (Upper)

    NOTICE After cleaning, be sure to place the air filter back in position. 3. DRAIN PAN, STORAGE BIN, FRONT PANEL (UPPER) 1) Follow the steps 1) to 2) in “III. 2. PREPARING THE ICE DISPENSER FOR LONG STORAGE”. 2) Unplug the ice dispenser. 3) Pull out the drain pan hose from the drain hole in the storage bin.

  • Page 49: Water Valve

    5. WATER VALVE Auxiliary code: K0 or earlier 1) Follow the steps 1) to 2) in “III. 2. PREPARING THE ICE DISPENSER FOR LONG STORAGE”. 2) Unplug the ice dispenser. 3) Disconnect the fitting nut from the water valve. 4) Remove the mesh filter from the water valve. 5) Clean the mesh using a brush.
  • Page 50 Auxiliary code: K1 or later 1) Follow the steps 1) to 2) in “III. 2. PREPARING THE ICE DISPENSER FOR LONG STORAGE”. 2) Unplug the ice dispenser or disconnect the power source. 3) Close the water supply tap. 4) Remove the top panel and front panel. 5) Disconnect the inlet hose from the water valve.

  • Page 51: Icemaking Water System

    Always wear rubber gloves, eye protectors, apron, etc. for safe handling of the cleaner and sanitizer. 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.
  • Page 52 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 connect the power source.
  • Page 53 17) Open the water supply tap, and repeat the above step 8), then step 10). Plug in the ice dispenser. 18) Repeat 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.

  • Page 54: Technical Information

    V. TECHNICAL INFORMATION 1. WATER CIRCUIT AND REFRIGERANT CIRCUIT Capillary Tube Evaporator Water Accumulator Valve Controller Actuator Board Motor Pump Motor Bin Control Switch Ice Station Water Tank Trap Drain Pan Storage Bin Drain Outlet U Trap Condenser Hot Gas Drier Valve Motor...

  • Page 55: Wiring Diagram

    2. WIRING DIAGRAM WIRING DIAGRAM POWER SUPPLY SEE NAMEPLATE FOR POWER VOLTAGE REQ TUBE CONTROL CONTROLLER BOARD GR/Y THERMISTOR NEUTRAL GROUND LIVE (BK) GR/Y (BK) CN13 BIN CONTROL SWITCH FUSE VARISTOR (BK) TRANSFORMER CAP. (BR) FUSE START 6.3A (BK) RELAY SURGE ABSORBER GR/Y...

  • Page 56: Performance Data

    (kg/d) 35.6 27.7 18 (20) Freeze Cycle Time (min) 17.5 21.1 30.1 – Defrost Cycle Time (min) – DIM-30DE-2 Water Consumption 4.25 – (lit/h) Electric Consumption – Head Pressure [peak] – – – – (bar) Note: The sound output of this appliance is below 70dB.

  • Page 57: Service Diagnosis

    VI. SERVICE DIAGNOSIS 1. NO ICE PRODUCTION PROBLEM CHECK POSSIBLE CAUSE REMEDY [1] The ice a) Power source 1. OFF position. 1. Move to ON position. 2. Loose connections. 2. Tighten. dispenser will 3. Bad contacts. 3. Check for continuity and not start.
  • Page 58 PROBLEM CHECK POSSIBLE CAUSE REMEDY [2] (Continued) f) Air filter, 1. Clogged. 1. Clean. condenser [3] Compressor a) Control circuit 1. Loose connection or 1. Repair or replace. runs, but other broken wire. components will not start. [4] Fan motor will a) Wiring 1.

  • Page 59: Low Ice Production

    2. LOW ICE PRODUCTION PROBLEM CHECK POSSIBLE CAUSE REMEDY [1] Freeze cycle a) Water supply 1. Low pressure. 1. Check for recommended time is too pressure. b) Water 1. Too high. 1. Check for recommended long. temperature water temperature. c) Water quality 1.

  • Page 60: Others

    PROBLEM CHECK POSSIBLE CAUSE REMEDY [2] (Continued) f) Pump motor 1. Leaks. 1. Replace. 2. Bearings worn out. 2. Replace. g) Thermistor, 1. See “II. CONTROLLER BOARD”. controller board [3] Slab does a) Extension spring 1. Over-extended. 1. Replace. b) Clearance 1.

  • Page 61: Removal And Replacement Of Components

    VII. REMOVAL AND REPLACEMENT OF COMPONENTS 1. PANELS [a] FRONT PANEL (UPPER) (Auxiliary code: K0 or earlier) 1) Unlock the front panel (upper) by turning the keyhole counterclockwise with a flat blade screwdriver. Unscrew and lift off the front panel (upper). See Fig. 1 in “III. 1. IN CASE OF DIRTY WATER”.

  • Page 62: [D] Top Panel

    [d] TOP PANEL 1) Remove the front panel (upper). 2) Unscrew and unhook the rear of the top panel, and lift it off. 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. [e] AIR GUIDE The air guide fitted with a vibration damper on backside is located at the front of the condenser to prevent noise from the machine compartment.

  • Page 63: [G] Switch Box

    3) Remove the four machine screws securing the refrigerator cover, and take it off. 4) To refit the refrigerator covers, reverse the above procedure. [g] SWITCH BOX The switch box is located at the top of the refrigerator cover (A) to enclose the power switch.

  • Page 64: Service For Refrigerant Lines

    2. SERVICE FOR REFRIGERANT LINES [a] SERVICE INFORMATION 1) Allowable Compressor Opening Time and Prevention of Lubricant Mixture [R134a] The compressor must not be opened more than 30 minutes in replacement or service. Do not mix lubricants of different compressors even if both are charged with the same refrigerant, except when they use the same lubricant.

  • Page 65: [B] Refrigerant Recovery

    7) Evacuation, Vacuum Pump and Refrigerant Charge [R134a] Never allow the oil in the vacuum pump to flow backward. The vacuum level and vacuum pump may be the same as those for the current refrigerants. However, the rubber hose and gauge manifold to be used for evacuation and refrigerant charge should be exclusively for R134a.

  • Page 66: Compressor

    Depressed Access Valve OPEN Fig. 11 6) Open the high-side valve on the gauge manifold, and accurately measure 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 vapour charging will affect the blend consistency.

  • Page 67: Drier

    17) Replace the front panel and rear access panel in their correct positions. 18) Plug in the ice dispenser or connect the power source. Note: Hoshizaki recommends that compressor starting electrics are always replaced at the same time as the compressor.

  • Page 68: Evaporator

    8) Evacuate the system and charge it with refrigerant (See “2. [c] EVACUATION AND RECHARGE”). 9) Replace the rear access panel in its correct position. 10) Plug in the ice dispenser or connect the power source. Note: Always use a drier of the correct capacity and refrigerant type. 5.

  • Page 69: Hot Gas Valve

    6. HOT GAS VALVE IMPORTANT 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 ice dispenser or disconnect the power source. 2) Remove the rear access panel.

  • Page 70: Water Pan Assembly

    7. WATER PAN ASSEMBLY 1) Remove the top panel and front panel (upper). 2) Remove the front panel (lower), and push the reset switch on the control box to open the water pan. 3) Unplug the ice dispenser or disconnect the power source. 4) Disconnect the pump motor leads in the wiring channel.

  • Page 71: Pump Motor

    8. PUMP MOTOR 1) Unplug the ice dispenser or disconnect the power source. 2) Remove the top panel and front panel (upper). 3) Disconnect the pump motor leads in the wiring channel. 4) Remove screws and the pump motor from the bracket. 5) Disconnect the pump suction and discharge tubings.

  • Page 72: Actuator Motor

    10. ACTUATOR MOTOR 1) Remove the top panel and front panel (upper). 2) Push the reset switch on the control box to open the water pan. 3) Unplug the ice dispenser or disconnect the power source. 4) Remove the extension spring (actuator motor side) from the cam. 5) Disconnect the actuator motor leads in the wiring channel.

  • Page 73: Cam Arm

    11. CAM ARM [a] CAM ARM (A) - ACTUATOR MOTOR SIDE Refer to “10. ACTUATOR MOTOR”. [b] CAM ARM (B) - REAR SIDE 1) Remove the top panel and front panel (upper). 2) Remove the front panel (lower), and push the reset switch on the control box to open the water pan.
  • Page 74 Ｌ Fig. 14...

  • Page 75: Controller Board

    ICEMAKING ASSEMBLY AND CAM MECHANISM INDEX NO. DESCRIPTION Water Pan Assembly Actuator Motor Actuator Motor Bracket Cam Arm (A) Cam Arm (B) Cam Shaft Cam Shaft Bearing Water Pan Bearing (A) Water Pan Bearing (B) Spring Pin Extension Spring Mechanism Base Spacer Flange Nut Clamp...

  • Page 76: [B] Replacement

    [b] REPLACEMENT 1) Unplug the ice dispenser or disconnect the power source. 2) Remove the front panel (lower). 3) Remove screws and the control box cover. 4) Pull out and remove the controller board from the control box. 5) Install the new controller board and reassemble the control box in the reverse order of the removal procedure.

  • Page 77: Thermistor For Cube Control

    13. THERMISTOR FOR CUBE CONTROL 1) Unplug the ice dispenser or disconnect the power source. 2) Remove the top panel, front panel and pipe cover (rear). 3) Remove the connector K4 on the controller board, referring to “12. [b] REPLACEMENT”. 4) Unscrew and remove the thermistor holder and thermistor, located on the evaporator (front side).

  • Page 78: Fan Motor

    14. FAN MOTOR 1) Unplug the ice dispenser or disconnect the power source. 2) Remove the front panel (lower). 3) Remove the control box and air guide. 4) Disconnect the connector of the fan motor. 5) Remove the fan motor bracket and the fan motor. 6) Cut the leads of the fan motor allowing enough lead length to reconnect using closed end connectors.

  • Page 79: Bin Control Switch

    Machine Screw (Motor Bracket) Motor Bracket Machine Screw (Ice Guide) Machine Screw (Motor) Ice Guide Auger Gear Motor Spring Pin Joint Motor Cover View with motor cover removed Fig. 17 16. BIN CONTROL SWITCH 1) insert a flat blade screwdriver between the switch case and switch base, and lightly pry the switch case off.

  • Page 80: Push Button Switch And Pilot Lamp

    17. PUSH BUTTON SWITCH AND PILOT LAMP 1) Unplug the ice dispenser. 2) Remove the front panel (upper) and front panel (lower). If the push button switch does not require replacement, skip 3) - 11). 3) Remove the connectors to the push button switch. Push Button Plunger Supporter...

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