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34

Error Codes
Error

Code

Problem

Corrective Action/Reset Details

E1

Freeze Cycle Backup Timer

Freeze cycle backup timer (Control Board
Setting 6) has terminated.
50 min. after water tank starts to close in preceding
harvest cycle, unit stops if the evaporator
temperature is above 32°F (0°C).

Check for inlet water valve leaking by, hot gas valve
leaking by, pump motor not pumping, thermostatic
expansion valve not feeding properly, low charge, or
inefficient compressor.

Press the "RESET" button to reset.

E2

Harvest Cycle Backup Timer

Harvest cycle backup timer has terminated.
30 min. after water tank starts to open in harvest
cycle, unit stops if harvest cycle termination
temperature (Control Board Setting 1) has not been
reached.

Check for open thermistor, HGV not opening, TXV
leaking by, low charge, or inefficient compressor.

Press the "RESET" button to reset.

EE

(E3)

Water Tank Opening Backup Timer

3-minute opening backup timer starts when water
tank starts to open.
If actuator motor's internal position sensor does not
indicate water tank is fully open within 3 minutes,
display shows "EE" and unit stops for 60 minutes.
If error recurs after unit resumes operation, display
shows "EE" and unit shuts down.

Check actuator motor and control board.

Press the "RESET" button to reset.

EE

(E4)

Water Tank Closing Backup Timer

50-second closing backup timer starts when water
tank starts to close.
If actuator motor's internal position sensor does not
indicate water tank is fully closed within 50 seconds,
display shows "EE" and unit stops for 60 minutes.
If error recurs after unit resumes operation, display
shows "EE" and unit shuts down.

Check actuator motor and control board.

Press the "RESET" button to reset.

EE

(E5)

High Evaporator Temperature

If evaporator temperature 140°F (60°C) or higher for
5 sec., unit stops.

Check for harvest problem (stuck HGV or control
board relay), hot water entering unit, or shorted
thermistor.

Press the "RESET" button to reset.

EE

(E9)

Condenser Thermistor Error

If condenser thermistor is open or shorted for 2 sec.,
unit stops.
Note: IM-200BAC does not utilize a condenser
thermistor, therefore E9 error will not occur.

Replace condenser thermistor.

EE

(EA)

Control Board Error

If model data IC is defective, unit stops.

Replace control board.

EE

(EC)

Evaporator (Cube Control) Thermistor Error

If evaporator thermistor is open or shorted for
2 sec., unit stops.

Replace evaporator thermistor.

EE

(Ed)

Water Regulating Valve Error

If water regulating valve thermistor detects a
temperature below the water regulating valve error
detection temperature (Control Board Setting 36),
error is displayed but unit continues to operate.
Note: IM-200BAC does not utilize a water regulating
valve, therefore Ed error will not occur.

Check water regulating valve.

Press the "RESET" button to reset.

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Содержание IM-200BAC

Страница 1: ...Models IM 200BAC Self Contained Cuber Service Manual Number 73244 Issued 9 3 2019 hoshizakiamerica com ...

Страница 2: ...improper installation is not covered under warranty Hoshizaki provides this manual primarily to assist qualified service technicians in the service of the appliance Should the reader have any questions or concerns which have not been satisfactorily addressed please call send an e mail message or write to the Hoshizaki Technical Support Department for assistance Phone 1 800 233 1940 770 487 2331 Fa...

Страница 3: ...peration Flow Chart 9 B Service Diagnosis 10 C Control Board Check 15 D Bin Control Check 16 E Evaporator Thermistor Check 18 F Control Switch 18 G Diagnosis Table 19 H Freeze Up Check List 22 III Controls and Adjustments 23 A Control Board 23 B Control Board Buttons 25 C Control Board Settings 26 D Control Board Information Display 30 E Control Board Model Code Setting 32 F Error Codes 33 G Quick...

Страница 4: ... to meet these code requirements could result in death electric shock serious injury fire or damage to the appliance Electrical connection must be hard wired and must meet national state and local electrical code requirements Failure to meet these code requirements could result in death electric shock serious injury fire or severe damage to the appliance The icemaker requires an independent power ...

Страница 5: ...he instructions in this manual carefully to reduce the risk of costly water damage In areas where water damage is a concern install in a contained area with a floor drain Install the appliance in a location that stays above freezing Normal operating ambient temperature must be within 45 F to 100 F 7 C to 38 C Do not leave the appliance on during extended periods of non use extended absences or in ...

Страница 6: ...it Diagram A Construction 1 Air Cooled Model BAC Power Supply Cord Rear Panel Top Panel Top Insulation Top Sheet Side Panel Front Panel Louver Air Filter Front Sheet Front Frame Slope Door Lower Front Cover Leg Front View Outside Rear View Outside ...

Страница 7: ... Gas Valve Control Board Thermistor Actuator Motor Evaporator Thermistor Water Pan Evaporator Inlet Water Valve Water Tank Pump Motor Drain Pan Water Tank Drain Pipe Bin Control Control Box High Pressure Switch Condenser Compressor Drier Front View Inside Rear View Inside ...

Страница 8: ... Air Cooled Model BAC Thermostatic Expansion Valve Evaporator Evaporator Thermistor Water Tank Water Pump Condenser Drier Fan Motor Compressor Strainer Hot Gas Valve Inlet Water Valve Water Circuit Refrigerant Circuit Heat Exchanger Water Pan ...

Страница 9: ...nergized Water Tank Open ET ET 41 F 5 C CB Setting 1 AM fully open PM energized WV de energized Comp continues FM continues WV energized 4 5 Water Tank Closed AMPS If CBT 32 F 0 C CB Setting 74 and CBT 111 F 44 C CB Setting 70 HGV energizes 10 sec de energizes 20 sec energizes 10 sec CB Setting 71 72 ET 8 5 F 22 5 C CB Setting 2 Note CB Setting Initial Harvest and Initial Freeze after Power On Ini...

Страница 10: ...ervice The diagnostic procedure is a sequence check that allows you to diagnose the electrical system and components Before proceeding check for correct installation proper voltage per nameplate and adequate water supply Check that the 5A fuse is good Check CB using the steps in II C Control Board Check Note When checking high voltage 115VAC always choose a white W neutral wire to establish a good...

Страница 11: ...t at HPS DBU HPS is open See b HPS Diagnosis below If 115VAC is present at HPS DBU check for 10 5VAC at CB CN1 1 red wire to CB CN2 1 red wire If 10 5VAC is not present check CT continuity If open replace CT If 10 5VAC is present and CB on display is not on replace CB b HPS Diagnosis If HPS is open HPS automatically resets when refrigeration circuit high side pressure is within an acceptable range...

Страница 12: ...external protector Comp start capacitor start relay and motor winding b HGV Diagnosis If Comp is energized and evaporator is not warming check that HGV energizes and opens Check for 115VAC at CB CN3 3 P to neutral W If 115VAC is not present replace CB If 115VAC is present check for 115VAC at HGV coil and check HGV coil continuity Replace as needed c AMD Diagnosis AMD energizes opens If not check f...

Страница 13: ...ata Note Refrigerant gauges should not be placed on the icemaker until all other components have been confirmed c Comp Diagnosis If Comp is not energized check for 115VAC at CB CN3 9 O If 115VAC is present check for 115VAC at CR coil If 115VAC is present check CR coil and contact continuity Replace as needed If CR is okay check Comp start relay start capacitor and motor winding continuity If Comp ...

Страница 14: ...cle Same as the initial harvest cycle Return to step 2 above Note Appliance continues to cycle until BC is satisfied or power is switched off The appliance always restarts at the startup cycle 2 Shutdown Diagnosis 1 When BC is engaged open for more than 10 sec if in freeze cycle the icemaker shuts down after harvest cycle water pan assembly open If in harvest cycle or if BC is engaged open while t...

Страница 15: ... check for 115VAC at CS terminal 2 DBU to neutral W If 115VAC is not present check 5A fuse continuity If 115VAC is present check for 115VAC at CS terminal 1 R to neutral W If 115VAC is not present replace CT If 115VAC is present check for 115VAC at HPS DBU to neutral W If 115VAC is not present see II B 1 1 b HPS Diagnosis If 115VAC is present and secondary circuit does not have proper voltage repl...

Страница 16: ...engaged BC switch is open If closed check that the actuator paddle is not restricted Clean if necessary See II D 2 Bin Control Cleaning If BC switch still reads closed replace BC 8 Reconnect BC wire harness connector to CB CN11 connector then move the control switch to the ICE position Turn on the power supply 9 Allow the icemaker to cycle on Press and hold the actuator paddle for at least 10 sec ...

Страница 17: ...ing 5 Remove the actuator paddle from the switch mount See Fig 1 6 Wipe down BC with a mixture of 1 part of Hoshizaki Scale Away and 25 parts of warm water Rinse the parts thoroughly with clean water 7 Reassemble BC and replace it in its correct position Note If the magnet was removed for cleaning be sure to replace it in its correct position 8 Replace the BC cable into the cable ties in the evapo...

Страница 18: ...ponent Service Information If within the normal range continue to the next step 7 Replace the thermistor in its correct position See IV B Component Service Information 8 Reconnect the thermistor connector to CB CN13 connector 9 Replace the control box cover in its correct position 10 Move the control switch to the ICE position 11 Replace the front panel in its correct position 12 Turn on the power...

Страница 19: ...ol Check and Cleaning a Tripped with bin filled with ice b Actuator does not move freely c Defective 8 Water Supply a Water supply off or improper water pressure b External water filters restricted 9 Inlet Water Valve a Screen or orifice restricted b Coil winding open 10 Compressor a Compressor relay magnetic contactor contacts bad or coil winding open b Start capacitor or run capacitor defective ...

Страница 20: ...mostatic Expansion Valve a Bulb loose b Defective 6 Compressor a Inefficient or off 7 Refrigerant Charge a Low Slab Does Not Break Into Separate Cubes Possible Cause 1 Spring a Over extended 2 Water pan assembly a Obstacle caught between evaporator and water pan assembly Cubes Drop Separately Possible Cause 1 Refrigerant Charge a Low Long harvest cycle 2 Cam Arm a Worn out Imperfect Ice Production...

Страница 21: ...e a Low Large Hole Cubes Possible Cause Also see III G 1 Dimple Diameter 4 Icemaker Location a Insufficient clearance b Ambient temperature too high 5 Water Supply a Water leaks b Improper water pressure Cloudy Cubes Possible Cause 1 Water Quality a High hardness See III G 2 Ice Clarity 2 Slush Ice a Use Anti Slush Control Control Board Settings 50 and 51 ...

Страница 22: ...tor springs in place 12 Are actuator cam A and Cam B in their correct positions 13 Is the bin control properly mounted and secured 14 Is the evaporator thermistor properly mounted tight and insulated 15 Is the TXV bulb properly mounted tight and insulated wrapped 16 Is there an error code on the control board display if so what error code ___________ Appliance Operation Startup YES NO 17 Does the ...

Страница 23: ...s integrated circuits which are susceptible to failure due to static discharge It is especially important to touch the metal part of the icemaker when handling or replacing the control board Do not touch the electronic devices on the control board or the back of the control board Do not change wiring and connections Do not short out power supply to test for voltage Always replace the whole control...

Страница 24: ...Relay Drive Output CN4 Connector Data Input Output CN1 Connector Control Transformer 10 5VAC Input CN5 Connector Actuator Motor Output CN3 Connector 115VAC Output Pump Motor Hot Gas Valve Fan Motor Inlet Water Valve Compressor Relay F1 Fuse 5A 250VAC CN2 Connector 115VAC Input RESET Button SERVICE 1 Button SERVICE 2 Button CN9 Connector Display Output Control Board Part Number P01873 02 Version 1 ...

Страница 25: ...E 2 Buttons Press the SERVICE 1 or SERVICE 2 button briefly to display the current freeze cycle termination temperature Control Board Setting 2 This setting controls dimple diameter For details about adjusting the dimple diameter see III G 1 Dimple Diameter NOTICE Do not decrease dimple size below 3 16 5 mm Press and hold the SERVICE 1 button for 3 seconds to enter information display and model co...

Страница 26: ...F 0 C To use this setting for dimple size adjustment see III G 1 Dimple Diameter 5 to 40 C 0 5 C increments The in the lower right corner of the display indicates 5 C 22 5 3 Freeze Cycle Termination Time Integrated with freeze cycle termination temperature CB Setting 2 to control length of freeze cycle after evaporator cube control thermistor temperature drops to 32 F 0 C 5 to 90 min 1 min increme...

Страница 27: ...water supply times 1 and 2 CB Settings 12 and 15 to the full drain times listed in this table and move the water tank drain pipe to the drain position For details see III G 2 Ice Clarity Partial 1 Full 0 1 15 Freeze Cycle Water Supply Time 2 Partial Drain CB Setting 14 0 to 90 sec 1 sec increments 0 Freeze Cycle Water Supply Time 2 Full Drain CB Setting 14 0 17 Ice Bridge Control Divided Harvest C...

Страница 28: ... 0 Compressor 37 Compressor Output Selection DO NOT ADJUST 0 X8 DC Relay On 1 X1 AC Relay On 1 Anti Slush Control 50 Pump De Energized Time When temperature at evaporator cube control thermistor drops to 37 F 3 C in the freeze cycle pump de energizes for the length of time set 0 to 90 sec 0 ignore no anti slush 1 sec increments 0 51 Anti Slush Control Water Supply Time Time inlet water valve is en...

Страница 29: ...ontrol Hot Gas Valve Energized Time See CB Setting 70 71 72 74 description above 0 to 20 sec 1 sec increments 10 72 Water Tank Ice Control Hot Gas Valve De Energized Time See CB Setting 70 71 72 74 description above 10 to 60 sec 1 sec increments 20 Ice Bridge Control 73 Ice Bridge Control Hot Gas Valve De Energized Time Time hot gas valve is de energized after 20 sec in harvest cycle if control bo...

Страница 30: ...ator Cube Control Thermistor Temperature C No n4 Current Control Board Thermistor Temperature C No n5 Water Temperature Temperature at evaporator cube control thermistor 30 seconds after pump motor energized in freeze cycle plus the water temperature correction value Control Board Setting 13 H if Higher than 48 F 9 C L if 48 F 9 C or Lower No n6 Current Condenser Thermistor Temperature Not Applica...

Страница 31: ...fol lows E5 off E4 off E3 off E 2 off E1 off repeat Yes h5 Firmware Version Displays control board s firmware version For example version 1 0A displays as follows 01 off 0A off re peat No h6 Model Code The model code puts all settings for a given model to the correct default settings The model code set ting mode should only be used when the control board has been changed the model code is incor re...

Страница 32: ...ew control board P01873 02 Version 1 0C or Later 5 Connect the connectors to the new control board 6 Replace the control box cover in its correct position 7 Plug in the appliance and then move the control switch to the ICE position 8 00 appears in the display of the new control board 9 Press the SERVICE 1 button to increase the first digit in the display and the SERVICE 2 button to increase the se...

Страница 33: ...splayed the dot in the bottom right of the display turns on For IM 200BAC set model code to 0A 6 When the desired model code is displayed press the RESET button to save the setting on appears in the display F Error Codes When the control board detects an error the display shows one of the following error codes in the display mode Error codes other than E1 and E2 are displayed as EE at the time of ...

Страница 34: ...ank Closing Backup Timer 50 second closing backup timer starts when water tank starts to close If actuator motor s internal position sensor does not indicate water tank is fully closed within 50 seconds display shows EE and unit stops for 60 minutes If error recurs after unit resumes operation display shows EE and unit shuts down Check actuator motor and control board Press the RESET button to res...

Страница 35: ... is 22 5 C For reference raising freeze cycle termination temperature setting to 13 C will result in a dimple diameter of approximately 3 8 10 mm 4 Once the display returns to on 20 seconds the new setting is saved b To decrease dimple diameter 1 Remove front panel 2 Press the SERVICE 2 button to view the current freeze cycle termination temperature setting 3 Press the SERVICE 2 button to lower fr...

Страница 36: ...pply time value flashes in the display Press the SERVICE 1 or SERVICE 2 buttons to change the setting to 66 7 Press the RESET button to save the setting and return to the menu 8 Using the same procedure as above change the full partial drain setting Control Board Setting 14 from 1 partial drain to 0 full drain 9 Once the display returns to on 20 seconds the new setting is saved 10 Replace the fron...

Страница 37: ...tem if using an electronic leak detector and then raise the pressure using nitrogen gas 140 PSIG Do not use R 404A as a mixture with pressurized air for leak testing NOTICE Always recover the refrigerant and store it in an approved container Do not discharge the refrigerant into the atmosphere Do not leave the system open for longer than 15 min when replacing or servicing parts The Polyol Ester PO...

Страница 38: ... the new drier with the arrow on the drier in the direction of the refrigerant flow When brazing protect the drier by using a wet cloth to prevent the drier from overheating Do not allow the drier to exceed 250 F 121 C 2 Use an electronic leak detector or soap bubbles to check for leaks Add a trace of refrigerant to the system if using an electronic leak detector and then raise the pressure using ...

Страница 39: ...alves to prevent a possible leak B Component Service Information NOTICE When replacing a component listed below see the notes to help ensure proper operation Component Notes Compressor Install a new start capacitor run capacitor and start relay Thermostatic Expansion Valve Attach the thermostatic expansion valve bulb to the suction line in the same location as the previous bulb The bulb should be ...

Страница 40: ...a Task Daily Scoop Clean the ice scoop using a neutral cleaner Rinse thoroughly after cleaning Bi Weekly Air Filters Inspect Wash with warm water and neutral cleaner if dirty Monthly External Water Filters Check for proper pressure and change if necessary Icemaker Exterior Wipe down with a clean soft cloth Use a damp cloth containing a neutral cleaner to wipe off oil or dirt build up Clean any chl...

Страница 41: ...switch to the OFF position 1 Remove the water from the icemaker water supply line 1 Remove the front panel 2 Move the control switch to the OFF position 3 Close the icemaker water supply line shut off valve and open the icemaker water supply line drain valve See Fig 4 Icemaker Water Supply Inlet 1 2 FPT Icemaker Storage Bin Drain Outlet 3 4 FPT Fig 4 To approved floor drain 1 4 fall per foot Shut ...

Страница 42: ... position See Fig 3 4 Replace the top sheet top insulation and top panel 5 Close the icemaker water supply line drain valve 6 Plug in the appliance and then move the control switch to the ICE position 7 Press the RESET button See Fig 2 The water tank will start to open Note This procedure is necessary to protect the icemaker from freezing up at subfreezing temperatures 8 Move the control switch to...

Страница 43: ...posal The appliance contains refrigerant and must be disposed of in accordance with applicable national state and local codes and regulations Refrigerant must be recovered by properly certified service personnel ...

Страница 44: ...32 watts 100 38 70 21 42 0 16 39 0 15 36 0 14 80 27 40 0 15 36 0 14 32 0 12 90 32 39 0 15 34 0 13 30 0 11 gal day m3 day 100 38 36 0 13 33 0 12 26 0 10 70 21 80 27 90 32 min 100 38 70 21 80 27 90 32 min 100 38 70 21 205 14 4 224 15 8 242 17 0 80 27 220 15 4 249 17 5 262 18 5 90 32 224 15 8 270 19 0 286 20 1 PSIG kg cm2 G 100 38 225 15 8 274 19 2 300 21 1 70 21 51 3 6 55 3 8 63 4 4 80 27 54 3 8 59 ...

Страница 45: ...45 B Wiring Diagram 1 IM 200BAC ...

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