AUTOMATIC ICE MAKER
Contents
1. Please use the socket the socket meeting the standard The body Lines The lines are Adjust reconnect replace is creepage lines electrified Electric The electric Replace this electric component component is component creepage Scales the water The rigidity of the Using a water soften occur quality water quality is too apparatus installed in frequently high front of the water inlet inside the valve machine Water inlet The noise of the water Replace the water inlet valve inlet valve valve Sp ring of the iteal ke Replace the compressor internal drops compressor Noise Water pump The noise of the water Replace the water pump during pump operation Pipeline Pipeline system Clear pipeline system is big system resonate Feet The feet are not Level and lock the feet leveled The fan motor loose Relocate the fan motor Fan motor the clearance of the replace rotor is bigger the fan blade turns back Problem Check part Possible Cause Probable Correction kinds or point A few water drops to Normal condensation on the floor when you the door or some water The operation open the door to take together with ice Take out ice from ice care when you take out Water is storage bin ice leaking out Water supply Water supply Tighten fitting See the unit connection connection leaking Connecting the water line Nut of2. coil compressor is short frequency running circuit coil Condenser The condenser may be Clean the condenser dirty Fan The fan may be dirty or Clean or Replace the damaged fan The The controller is damaged Replace the Electronic Electronic controller controller Add low side access valve locate leak Refrigeran Refrigerant leaks recover refrigerant t completely replace _ drier evacuate and weigh in the data plate charge The ig low side access valve recover ae Capillary Capillary tube is blocked refrigerant replace hot tube gas valve replace drier but no ice i evacuate and weigh in the nameplate charge Vent The vent is obstructed Clean the vent around the ice machine Hot gas Hot gas valve damaged Replace valve The The model of making ice Replace the Electronic Electronic Goes pose to harvest controller controller Problem Check part Possible Cause Probable Correction kinds or point Refrigerant Refrigerant leaks Recharge partially Condenser The condenser may be Clean the condenser dirty Cooling The ambient The ambient Check the ambient and System temperature temperature is high or too low air flow Fan The fan is dirty or damaged Clean or replace Hot gas valve Hot gas valve performance poor leads to few ice is produced Replace the hot gas valve Problem Check part Possible Cause Probable Correction kinds or point The bin
3. condenser 1851700201 Temperature sensor of evaporator 1880014701 Left foot 1880014801 Right foot 1853700406 Wiring harness 1880007500 Drier 1853110500 Power cord 1854000101 Power switch 1880012905 Condenser 1854703321 Hot gas valve coil 1854703310 Hot gas valve body 1805000200 Capillary tube 1858400100 Compressor 1858200601 Motor 5W 1860700100 Fan blade amp 200X28 1864800100 Ice scoop 1864506100 Long drain pipe 1864538100 Nut of the draining hole including the rubber gasket 1811306020 Water supply pipe 1854703200 Water inlet valve 1864529100 Nut of the water inlet tube 1858900600 Water pump 1864806202 Door frame 1864806601 1861702202 Door 1 Door handle 1880024203 Evaporator ice mold 21 54 1864803400 Rubber of sprinkler 58 1861700704 Ice slideway 59 1864612100 Small nozzle 60 1864603200 Small plug of sprinkler 61 1861400700 Sprinkler 63 1864801701 Water bin 64 1861703200 Left flake 65 1864600200 Flake cover 66 1861703300 Right flake 73 1855501200 Ice full sensor 1854800200 0 5A fuse of controller 1854800300 15A fuse of controller 22
4. the Nut of the water drain Tighten fitting See water drain hole leaking Connecting the Water hole Line Drain pipe Drain pipe connection Tighten fitting See connection leaking connecting the drain The water The water quality is Using a filter apparatus quality too poor The water installed in front of the line blocks water inlet valve The The silica gel tubes 7 sprinkler Silica gel distort lead fo block Make the silica gel tubes pressure of tubes resile spray isn t Tie in return The tie in return pipe Clean screen see user s enough pipe manual interior blocks cleaning Water pump The lines of the water Plug into again The pump loose sprmkler Water pump Water pump damages Replace water pump doesn t The room The aes per ature Make the temperature Spray temperature ihe aa Pump fone returns within the stated range i Clean it see user and care Water line The water line blocks manual ice making The system cleaning downcome The rubber of drain Make the silica gel tube r doesn t Rubber SE drain distort resile leak Hot gas valve The hot gas valve is Replace the hot gas valve poor The hot gas valve Replace the hot gas valve Harvesting damage ice is Ice mold of The ice mold is Clean the ice mold or difficult the dirty or polishing replace the evaporator evaporator degree is poor Refrigerant Refrigerant leaks Recharge The ambie
5. the compressor remove the rear cover and left side locate the compressor Unplug the lines and taken out the earth line add low side access valve open the Process Suction evacuate refrigerant take out the compressor replace a new one joint together then recover refrigerant weigh in the nameplate charge Reverse the above step to reassemble 2 Replace the fan motor and fan blade gt gt gt gt Remove the top cover rear and left side locate the fan motor unplug the lines connecting with the fan motor loosen the screws of holding fan motor bracket Replace a new one If only need replace the fan blade loosen the screws holding the fan blade taken out the damaged replace a new one Reverse the above step to reassemble 3 Replace the hot gas valve drier and evaporator gt gt gt Remove the rear top cover and the left side Locate the drier and hot gas valve add low side access valve recover refrigerant replace the drier and hot gas valve evacuate and weigh in the nameplate charge Reverse the above step to reassemble If need replace the evaporator Remove the rear top cover locate the evaporator add low side access valve weld open the two welds replace a new one Recover refrigerant evacuate and weigh in the nameplate charge Reverse the above step to reassemble 20 Spare parts list CODE DESCRIPTION 1854200302 Control box 1851700401 Temperature sensor of
6. Automatic Ice Maker Service Manual MIM 75 MIM100 MIM130 MMU MMU MMM 2 Table of contents How the Icemaker works 3 10 Cooling System 3 Water System 4 6 Wiring Connections and Controller 7 9 Exploding Drawing 10 12 TroubleShooting 13 17 Before Maintenance 13 Basic Checking 2 2 22 22 nnn nn en nnn n nnn nee n ee 13 TroubleshootingGuide 14 17 Adjustment and Replacement 18 20 Replace the controller 18 Adjust the size of ice cube 18 Replace the water pump 19 Replace the water inlet valve 19 Replace the compressor 19 Replace the fan motor and fan blade 20 Replace the hot gas valve drier and evapo
7. ater supply pipe 31 Water inlet valve 34 Water valve outlet tube 35 Return pipe of pump 37 Water outlet tube of pump 38 Water pump 39 Rubber of drain 40 Syphon 41 Tie in of return pipe 2 42 Net of return pipe 49 Evaporator Ice Mold 50 Water level pipe 51 Rubber gasket 52 Net of return pipe 53 Rubber gasket 54 Rubber sprinkler Rubber sprinkler 1 Rubber sprinkler 2 Rubber sprinkler 3 55 Tie in of return pipe 2 58 Slide way 59 Small nozzle 60 Small chock plug of sprinkler 61 Sprinkler 62 Flake of sprinkler 63 Water bin 64 Left flake 65 Flake cover 66 Right cover 67 Tie in of return pipe 1 68 Rubber gasket 69 Net of return pipe 70 Pole of flake cover 72 Storage bin 73 Ice cube full sensor Wiring Connection CIRCUIT DIAGRAM FAN MOTOR m a COND SENSOR apup CONDE WATER SOLENOD EVAP SENSOR HOT GAS SOLENOID eee ee a OVERLOAD p CE FULL SENSOR ER comp ICE FULE W e FUSE ie Clean CTU e O O11 Ice making JN O 3 2 ce harvest H Mode ED g i lt FUSE2 CONTROL PANEL Circuit Description 1 Water Inlet Status As the icemaker is properly installed when the machine is powered on or wake up from Standby Status and Cleaning status the machine works in the Water Inlet Stage In this status Water inlet valve and hot gas solenoid valve is powered on and water get in the water bi
8. by the refrigerant So ice can formed on the evaporator during water is sprayed to the evaporator Low pressure refrigerant gas may go back compressor from the evaporator During the ice harvest stage the solenoid valve is open The hot refrigerant gas is pumped out off compressor to evaporator through hot gas valve As the hot gas is not cooled by the condenser the refrigerant makes the evaporator ice mold warm So some ice touching the evaporator is thawed All of ice can slide down to the ice storage bin Water System During the ice harvest stage the water inlet valve will be powered to open Water pump is powered off Water is supplied by water supply pressure through Water valve outlet tube No 34 to Evaporator No 49 Then water will fall to Water bin N0 63 When the water bin is full water will overflow through the pipes to the drain pipe During the ice making stage the water inlet valve will be closed The water pump is powered on water is pumped from the water bin to spray to the evaporator through the pipes No 35 No 37 and pump No 38 Most of water go back water bin Some water is frozen on the evaporator step by step ITEM DESCRIPTION NO 21 Downcomer 23 Rubber of drain 25 Connector of drain 26 Multi connection pipe 27 Drain pipe 28 Nut of water draining hole 29 W
9. drain may be Clean out the drain check Bin drain partially restricted the installation The water quality is Using a filter apparatus Water line too poor The water installed in front of the Water line blocks water inlet valve System The silica gel tubes 1 Silica gel distort lead to block boreale arne subes tubes resile Tie in return pipe The tie in return pipe blocks Clean screen see user s manual interior cleaning 3 Ice Cube is not OK Problem Check part Possible Cause Probable Correction kinds or point Condenser The condenser is dirty Clean the condenser or the air grills are Leave space around the covered machine Cubes are The ambient The ambient Adjust the ambient too small temperature temperature is too temperature high Electronic The setting See the service manual controller temperature ishigh adjust the size of ice cubes Refrigerant Refrigerant leaks Recharge Electronic The setting See the service manual controller temperature of adjust the size of ice Electronic controller cubes Cub is low tes are Sensor The sensor of Replace the sensor of Ome temperature damages temperature The ambient The ambient Adjust the temperature and water temperature and water temperature temperature is too low The water quality is Using a water soften Water quality poor filter apparatus installed The cubes in fr
10. efault factory setting of the ice size Replace the water system components Please see the water system drawing The water leakage should be checked after this kind of operation NOTICE Unscrew the nut of the water draining hole drain off the waste water to some container then screw the nut on tightly when the waste water is fully drained off 1 Replace the water pump gt Disconnect electrical power gt Remove the rear cover gt Unplug the lines connector with the water pump the water outlet tube of pump and the water inlet tube of pump gt Loosen the screws replace a new one gt Reverse the above step to reassemble 2 Replace the water inlet valve If the water inlet valve does not work at all or does not shut off tightly it should be replaced gt Unplug or disconnect electrical power gt Loosen the water supply pipe remove the water panel loosen 2 screws holding the water inlet valve unplug the lines and loosen the water valve outlet tube gt Replace a new one reverse the above step to reassemble Replace the cooling system components Replace the condensing components See Figure cooling system 1 Replace the compressor and the compressor kit includes relay thermal protect gt If only need replace the compressor kit remove the rear locate the compressor take the clip open the cover replace the wrong gt Reverse the above step to reassemble gt If need replace
11. flash together To stop the cleaning mode press the Clean button again MAJOR FUNCTIONS OF CONTROLLER 1 Completely automatic operation procedure 2 When the ice storage bin is full of ice cubes the machine will stop working automatically and start again after the ice cubes are taken out The different color of LED display different work mode 4 Major fuse broken indicate and stop working The motor fan is submitted to the ambient temperature The Fan motor will stop working to keep the cooling system working in a good status if the ambiebt temperature is too low Smart control method A probe and timer make the icemaker working always in a good status The compressor is protected by being restarted delaying 5 minutes Exploding Drawing Item No Description 2 Control box 21 Temperature sensor of condenser 2 2 Temperature sensor of evaporator 2 3 0 5A fuse of controller 2 4 15A fuse of controller 3 1 Left foot 3 2 Right foot 4 Wiring harness 5 Drier 7 Power cord 8 Power switch 9 Condenser 11 Hot gas valve coil 11 1 Hot gas valve body 12 Capillary tube 16 Compressor 18 Motor 5W 18 1 Fan blade amp 200X28 20 Ice scoop 27 Long drain pipe Nut of the draining hole including the rubber 28 gasket 29 Water supply pipe 31 Water inlet
12. heck if the water filter needs to be replaced gt Check if the icemaker installed according to the user manual gt Check if the icemaker needs to be cleaned Touching gt Touch the hot gas pipe with the evaporation weld feeling the temperature At the ice making stage feeling cool At the ice harvest stage feeling hot gt Touch the capillary tube the drier nearby feeling tepefaction Troubleshooting Guide This troubleshooting guide in the user manual should be read before this guide Be sure only when the trouble shooting in user manual can t help you solve the problem turn to this guide 1 The machine does not make ice Proble Check Possible Cause Probable Correction m part or kinds point Plug The icemaker is Plug the icemaker in unplugged Socket Socket is damaged Check and replace Power The icemaker power Turn the icemaker power switch switch turns to OFF switch to ON Fuse The fuse is blown Replace fuse Wiring Some wiring connection Check and re connect connection is incorrect or loosed The Voltage The voltage of the power Add manostat machin supply is low e don t Ice full The ice full sensor is out Replace a new one operate sensor of function The icemaker will stop after it works 18 cycles Ice full The ice full sensor is Clean and clear the sensor sensor covered by something wiring Some wiring is damaged Replace a new
13. n preparing for ice making status This status is set to 5 minutes and also helpful to protect the compressor avoiding restart within 5 minutes At this status the Red Green Yellow LEDs are light together 2 Ice making Status The compressor motor fan and pump are power on The water inlet valve and hot gas solenoid valve is shut down When this green LED is lit the unit is working in the ice making mode controlled by temperature probe on the evaporator When the green LED is flashing the unit is working in the time lapse ice making mode which determined by condenser temperature 3 Ice Harvest Status The pump shut down and the hot gas valve is open condenser fan is controlled by condenser temperature to avoid over heat meanwhile water inlet valve is open to refill water trought for next cycle Once the evaporator met a certain temperature unit will switch to time lapse harvest status and water pump is going to start in the last minitue The Yellow LED indicates the ice harvest status 4 Ice Full Status If the ice bin is filled with ice and the full sensor is covered the machine will turn into ice full status In this status all the electric components shuts down The RED LED indicates the status 5 Cleaning Status When Clean button of controller is pressed the machine turn to Cleaning Status At this status the pump and water inlet valve are powered on Compressor motor fan are powered off The green and yellow LEDs
14. nd the figure CB According the figure take out the fusel replace a new one Reverse the above step to reassemble _ gt If you need replace the sensors of fusel fuse2 temperature pull out the sensor of temperature open the rear of the controller box pull out the other side replace a new one Reverse the above step to reassemble Adjust the size of ice cube 1 Press and hold the Clean button and the Mode button together for at least 3 seconds The unit will enter the Ice Size Adjustment mode The HARVEST LED yellow will be blinking continuously during the ice size adjustment 2 While in the Ice Size Adjustment mode press the Clean button or the Mode button for the desired ice size Smaller ice setting By pressing the Clean button you can decrease the size of the ice cubes The ICE LED green will flash as you lower the ice size and will finally be blinking at the setting of smallest ice size Larger ice setting By pressing the Mode button you can increase the size of the ice cubes The BIN FULL LED red will flash as the larger size is set and will blink when the setting of largest ice size 18 has been reached After 10 seconds without any operation the unit will return to the previous mode NOTE During the ice size adjustment the BIN FULL ICE and HARVEST LEDS blinking all at once indicate that the unit is in the d
15. nt The ambient and Adjust the temperature and water water temperature is temperature too low ice cubes size The size is too big See the adjust of ice cube size Problem Check part Possible Cause Probable Correction kinds or point Sensor of Sensor of temperature Replace sensor of temperature breaks damages temperature The Hot gas valve Hot gas valve Replace the coil of hot evaporator performance poor gas valve if only because is hot more of the coil than 5 Refrigerant Refrigerant leaks Recharge minutes Electric The electric controller Check the controller controller is wrong The Hot gas valve Replace the coil of hot evaporator performance poor or gas valve if only because is not hot Hot gas valve break of the coil in the ice The lines of the hot Plug into again harvest gas valve loose mode Adjustment and Replacement Replace Controller fuse and the sensor of temperature WARNING ELECTRICAL SHOCK HAZARD Disconnect Electrical Power Before Beginning Removal of Parts gt Remove the front cover top cover right side gt Locate the Electronic controller gt Unplug the lines with the wiring harness pull out the sensors of temperature one at the evaporator another at the condenser gt loosen the screws of rooting the Electronic controller replace a new one Reverse the above step to replace gt If you need replace the fuse open the front cover of the control box you will fi
16. one Electric Some electric component Find the controller press component fail the mode button to change the mode It is helpful to judge which part is out of function Controller The controller fail Replace a new one Water The water supply tap is Turn on the water supply supply tap turn off tap Water The water supply pipe Reconnect the water supply supply is not proper connected or pipe pipe maybe kinked Some water line leaks Plug into again i Clean it see user and care The water line blocks manual ice making system Water Water line cleaning System Water supply pressureis Adjust the water supply lower pressure within the range of stated range Water inlet Water inlet valve is Check and re connect valve loosed Water pump damages Replace water pump The room temperature is Make the temperature Water OURE pump stop returns within the stated pump automatica ly range The lines of the water Plug into again pump loose nee a of water Replace water pump 2 Low production Problem Check Possible Cause Probable Correction kinds part or point Wiring loose Plus ti g tightly or replace connects The start Be damaged Replace the start relay ther relay thermal protect of The mal the compressor compresso protect r doesn t The Be turnoff Replace the compressor start or startup The motor of the Replace the compressor start
17. ont of the water inlet valve ae Small nozzle Spraying is blocked Adjust the location of the partially b y the ice slideway ice slideway formed h The room The room temperature Make the temperature aye ragged temperature is out the stated range returns within the stated sides the water pump stop range Clean the sprinkler see The ice Sprinkler The sprinkler clogged the user s manual cubes interior cleaning shape the root of the small Replace the small nozzle deformity Small nozzle nozzle have crack Problem Check part Possible Cause Probable Correction kinds or point The ice cubes are incomplete Sprinkler The sprinkler is Clean it while blocked being dumped Not enough water in Check water Water bin the water bin supply filter may be restricted The water line may be Cubes are blocked __ partially Sprinkler The sprinkler pressure Check the silica gel tubes formed a Pressure of of spray isn t enough distort lead to block re white at SP Y Check the tie in return mehonom pipe may be blocked Sprinkler The sprinkler is Clean it blocked The room The room temperature Make the temperature temperature is out the stated range returns within the stated the water pump stop range automatically 4 Other problems Problem Check part Possible Cause Probable Correction kinds or point Earth line The earth line isn t in
18. rator 20 Spare parts list 21 IMPORTANT The service manual is based on the user manual Before servicing please read user manual and service manual carefully The service operation should be implemented by qualified technician How the Icemaker Works Please refer to the section Operation of user manual from page 14 to 17 It describes clear how the icemaker makes ice and uses the water There are 3 systems including Cooling System Water System and Wiring Connection and Controller Cooling System ITEM DESCRIPTION NO 2 Controller box 2 1 Temperature sensor of the condenser 2 2 Temperature sensor of the evaporator 4 Wiring harness 5 Drier amp Fliter 9 Condenser 10 Multi connection pipe Copper 11 Hot gas solenoid valve 12 Capillary tube 13 Hot gas tube 15 Suction tube 16 Compressor 17 Discharge tube 18 Fan motor 18 1 Fan motor support 18 2 Fan blade 49 Evaporator Ice Mold During the ice making stage the hot gas solenoid valve is closed The hot refrigerant gas is pumped out off compressor to condenser The hot gas is cooled by fan forced air to warm liquid refrigerant after passing through the condenser The drier amp filter reduces the possible dirty and humidity in the refrigerant The evaporator is cooled
19. valve 32 Nut of the water inlet tube 38 Water pump 45 Door frame 46 Door 48 Door handle 49 Evaporator ice mold 54 Rubber of sprinkler 58 Ice slideway 59 Small nozzle 60 Small plug of sprinkler 61 Sprinkler 63 Water bin 64 Left flake 65 Flake cover 66 Right flake 73 Ice full sensor Troubleshooting WARNING ELECTRICAL SHOCK HAZARD Disconnect Electrical Power Before i i Beginning Removal of Parts Before Maintenance 1 Check out the user if the user uses a 115 Volt 60Hz AC only 15ampere electrical supply and have properly grounded ensure the maintainer against electrical shock 2 Check out the leads loose Turn off Short circuit If have such problems foreclose in turn Basic Checking The icemaker has some trouble through the appearance phenomena judges So the service technician must check it thoroughly then maintain Hearing gt Hearing the user s depiction about the icemaker at using process and the phenomena Try to understand what is the defect and how did the user operate the icemaker before calling for service gt If the running sound is normal Looking gt Check the pipe of cooling system especially the welding point If there is some oil the gas is leak out so that no ice making or less ice produced gt If the cycle of the ice making and harvest is normal gt Check the water system especially the connection nut of water discharging hole If there is some water leakage gt C
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