Service Manual - CS55

CS55 INTRODUCTIONTo the owner or user: The service manual you are reading is intended to provide you, andthe maintenance or service technican, with the information needed to install, start up, cleanand service this ice system. Table of ContentsSPECIFICATIONS ................................................................................................... Page 1FOR THE INSTALLER ............................................................................................ Page 2FOR THE PLUMBER .............................................................................................. Page 3INSTALLATION ....................................................................................................... Page 4INITIAL START UP .................................................................................................. Page 5HOW IT WORKS: COMPONENT DESCRIPTION ................................................. Page 6COMPONENT LOCATION ...................................................................................... Page 7HOW IT WORKS: WATER ...................................................................................... Page 8HOW IT WORKS: REFRIGERATION ..................................................................... Page 9HOW IT WORKS: REFRIGERATION ..................................................................... Page 10OPERATION & ADJUSTMENT: OPERATING CHARACTERISITCS .................... Page 11SANITIZING AND CLEANING ................................................................................ Page 12SERVICE DIAGNOSIS ............................................................................................ Page 13REMOVAL AND REPLACEMENT .......................................................................... Page 15

CS55 SPECIFICATIONS 17 9/16\" 28.42\" 18\" 5.5\"3/4\" HOSE COUPLING 20.6\" THREAD NAMEPLATE LOCATION 25/32\" 2 .2\" POWER CORD 2 .2\"1 .76\" 3.83\" 5 .4\"SPECIFICATIONSModel Number Dimensions Bin Ice Production Cube Basic Comp. Min. Circ. Max. Ship. H\" X W\" X D\" Capacity 24 hours Size Electrical H.P. Ampacity Fuse Wht. Size (W/O Legs) SmallCS55SAE-1A 28.42 X 18 X 20.6 28 lbs. 55 lbs. 115/60/1 1/5 6.1 15 100 lbs.The finish is enamel sandalwood. Minimum circuit ampacity is used to determine wire sizeper national electric code.OPERATING REQUIREMENTS: MINIMUM MAXIMUMAir Temperature................... 500 F. 1000 F.Water Temperature.............. 400 F. 1000 F.Water Pressure.................... 20 PSIG 100 PSIGVoltage................................. 103.5V 126.5VScotsman Ice Systems are designed and manufactured with the highest regard for safety and performance.They meet or exceed the standards of UL and NSF.Scotsman assumes no liability or responsibility of any kind for products manufactured by Scotsman that havebeen altered in any way, including the use of any parts and/or other components not specifically approved byScotsman.Scotsman reserves the right to make design changes and/or improvements at any time. Specifications anddesigns are subject to change without notice. December, 1987 Page 1

CS55: FOR THE INSTALLER Location:Prior consideration for the location shall installed location. Do not build a floorinclude: in front of the machine that would• Indoors, with a minimum room prevent its removal. temperature of 500F. and a maximum room temperature of 1000F. • Air circulation: The front panel MUST remain unobstructed. Do not block with• Water temperature to the machine any type of door or curtain. should be between 400F. and 1000F. If the unit is built in, it will pull air in from the right side of the front panel, and• Service Access. Allow enough space at exhaust it out the left side of the front panel. If the left side of the machine is left the back of the cabinet for the utilities to open, warm air will be discharged from the be connected. Allow enough space for left side panel. the machine to be pulled out from itsIF BUILT IN, THIS SIDE SHOULD BE TIGHT AGAINST THE PANEL TO PREVENT AIR RECIRCULATION COOL AIR INTAKE WARM AIR DISCHARGE December, 1987 Page 2

CS55 INSTALLATION ELECTRICAL, WATER, AND DRAINFOR THE PLUMBER 3. Install a shut off valve in the incomingWater supply and drain connections. water line near the icemaker so that the1. The recommended water supply line is a water can be shut off for service.1/4\" o.d. copper tube, the water pressure 4. Connect a gravity drain line to the drainmust have a minimum incoming pressure connection at the icemaker. A minimumof 20 psig. slope of 1/4\" fall per foot of horizontal run2. Connect the tubing to the 3/4\" hose is recommended. Install the drains per thecoupling thread water inlet fitting at the local codes.back of the icemaker. An optional adaptor A vent is recommended on the highestto go from the 3/4\" hose coupling thread to point of the drain tube, and the drain tubing1/4\" compression fitting is available from must be rigid pipe. Do NOT use flexibleyour dealer under part number 0533238. tubing.Or a similar adaptor can be purchasedfrom a hardware store.POWER LEVEL THE UNITSUPPLY POWER CORDWATER SUPPLYSHUT OFF VALVE WATER FILTER DRAIN(FIELD SUPPLIED)ELECTRICAL ADAPTOR1. Locate the nameplate on the lower rear (FIELD SUPPLIED)panel and check that the location sourcevoltage and capacity are correct for this Be certain that the icemaker is connectedunit. The unit is equipped with a grounded to its own electrical circuit and isplug connection. individually fused. The maximum allowableUnder no circumstances must the ground voltage variation should not exceed tenpost be altered or removed. percent of the nameplate rating.Extension cords are not permitted. All external wiring should conform to the National, State, and local electrical code requirements. Usually an electrical permit and the services of a licensed December, 1987 Page 3

CS55: INSTALLATION FINAL CHECK1. Is the Cabinet level? 7. Are all internal parts in place, including2. Have all the electrical and piping the spray platform and curtain?connections been made? 8. Have the internal refrigerant lines been3. Has the voltage been tested and checked for rubbing and chaffing?checked against the nameplate rating? 9. Has the machine been installed where it4. Is the unit plugged into a separate is indoors, in a controlled environment, withelectrical circuit? adequate air circulation around the5. Is the water supply line shut off valve machine, and where it can be serviced?installed and is the water turned on?6. Have the bin interior, and the cabinetexterior been wiped clean?POWER? LEVEL?DRAINS?WATER? December, 1987 Page 4

CS55 INITIAL START UP1. Open water supply valve. Note: Some water will drip from the2. Move electrical breaker or switch to the reservoir as the machine runs. This ison position. normal.3. Remove front panel. 9. After about 20 minutes the machine will4. Check the cube size control shaft, it begin to release the ice, this is called theshould be in a preset cube size position. If harvest cycle.not, turn it clockwise until the unit comes Observe the first cube harvest:on. Note: cube size adjustments may be • Check the size of the ice cubes.required. Start with the shaft in the \"mid\"position. Note: The normal size of the ice cube has5. The machine will go thru a \"dry\" cycle, a 1/4\" depression in the wide end.this will take about 10 minutes. Then the If the cubes are not filled out, adjust thewater fill and harvest cycle will begin. machine to make larger ice cubes by6. Observe the water fill cycle: turning the cube size control shaft clockwise.• The water inlet valve opens. If the cubes are overfilled, adjust the• Incoming water flows from the valve machine to make smaller ice cubes by turning the cube size control through the tubing to the top of the counter-clockwise. In both cases, the next cycle of cubes icemaker. harvested must be observed, and further corrections may be needed. See page 11.• Water flows around the inverted ice If the ice cubes are cloudy, an extreme water condition may exist. Confirm that cube cups and drains through holes into they are cloudy by placing them in a glass of cold water. If, in the water, they remain the reservoir. cloudy, you may want to have the water tested by a water treatment specialist.• The reservoir begins to fill up with water. If the ice cubes are cloudy only on the• Extra water flows thru the purge valve for 15 seconds and then the fan and pump will stop.• Water continues to enter the machine and overflows a standpipe in the bottom or in the center, the machine may reservoir and down the drain. be running out of water before the end ofThis will take about 2 1⁄2 minutes. After that the freezing cycle.the freeze cycle will begin. 10. Test the bin full shut off. To test this,7. Check the operation of the freezing cycle: hold some ice on the bin thermostat• Compressor is running. bracket (the stainless steel tube on the left• Water pump is spraying water through side of the ice storage bin). The icemaker should stop within a few minutes of having the spray nozzels. ice on that tube. 11. Fill out the Warranty Registration and• Icemaking begins, the water gets very Customer Evaluation form, and mail both to Scotsman. cold, and ice begins to form in the cube 12. Make sure the user understands the operation and maintenance requirements molds. for the icemaker. Leave the service manual and the name of the local8. Check that the plastic curtain assembly Scotsman service agency with the user.hangs down evenly in the opening and thatno large streams of water are passingthrough. December, 1987 Page 5

CS55 COMPONENT LOCATION JET CAP SPRAY PLATFORM SPINNER DISC EVAPORATOR RESERVOIR OVERFLOW TUBERESERVOIR FILL TUBE WATER PUMP WATER RESERVOIR BIN LEVEL BIN DRAINCONTROL TUBE BIN CONTROL THERMOSTAT BOXHOT GAS WATER INLET CUBESIZE VALVE VALVE & COMPRESSOR ON/OFF CLEANING SWITCH December, 1987 Page 6

CS55 HOW IT WORKS: COMPONENT DESCRIPTIONCube Size ControlThe cube size control is located in front of Bin Thermostat Controlthe control box, behind the front panel. The bin thermostat control body is locatedThe sensing capillary tube of the cube size in front of the control box just beside thecontrol is routed out of the control box into cube size control. The thermostat sensingits bulb holder on the evaporator coil. It is tube is located in the ice storage bin on thea reverse acting temperature control with left side wall where is automatically shutsdouble throw contacts. Turning its knob all the icemaker off when the bin is full andthe way counterclockwise also shuts off the restarts when ice is removed. Factoryicemaker. settings are 1 degree C (36 degrees F) cutThe control determines the length of the out and 4 degrees C (39 degrees F) cut in.freezing cycle and correspondingly the size It can be adjusted by turning theof the cube. A lower setting will produce a adjustment screw visible through thesmaller cube, and a higher setting will control box cover.make a larger cube. The cube size control Hot Gas Valve Assemblychanges its contacts when the evaporator The hot gas valve assembly is comprisedreaches its preset temperature, starting the of two parts, the valve body and the coil.harvest cycle. When the sensing tube of These parts are located on the dischargethe cube size control reaches the high line of the compressor and are activated bypreset temperature, the contacts change the cube size control (harvest cycle).again, restarting the freeze cycle. When the coil of the hot gas valve isCompressor Toggle Switch. energized, it magnetically lifts the plungerThe compressor toggle switch is located on in the hot gas valve body. This allows hotthe side of the control box. When moved refrigerant gas to by-pass the condenserto the ON position, it makes a circuit to the and go directly to the evaporator.compressor. When moved to the OFF Spray Platform and Chuteposition, the other components will still The spray system used on this unit is ofoperate. the stationary type. The water is forced byWater Pump the water pump into the platform chamberThe water pump operates during the and sprayed into the inverted cup moldsfreezing cycle only, pumping water through through a set of six spray nozzles.the spray nozzles into the inverted spray Fan Motorcups. The fan motor is electrically connectedInlet Water Solenoid Valve through the cube size control and runs onlyThe water solenoid valve, located in the during the freezing cycle.back panel of the unit, is energized only Hermetic Motor Compressorduring the harvest or cleaning cycles. The compressor is a vapor pump, forcingWhen energized it allows a metered refrigerant gas throughout the refrigerationamount of water to flow into the machine system.(.21 g.p.m.) This water flows to the top ofthe evaporator and then down into thereservoir.Water Purge Drain ValveThe purge valve opens during the harvestcycle, and when the pump is on, waterfrom the pump discharge is diverted to thedrain. This flushes out the reservoir.

CS55: HOW IT WORKS: WATERFreezing cycle During the freezing cycle, the compressor,The refrigeration process creates cold fan motor, and water pump are operating.temperatures within the evaporator coils Water is continuously freezing or beingand removes heat from the water sprayed sprayed and recirculated. Whenup into the inverted ice cube cups. When evaporator temperature is lowered to theenough heat is removed, the water cold temperature setting of the cube sizechanges into ice, and forms where it is the control, it ends the freezing cycle andcoldest: in the ice cube cups. starts the harvest cycle.Minerals contained in the supply water will Harvest cyclenot freeze and are drained away. Mostlypure water will be frozen into the ice cubes. WATER TO EVAPORATORHarvest cycle WATER platform andThe cube size SPRAY through thecontrol curtain assemblythermostat also WATER PUMP, into the icecloses the circuit ON DURING storage bin.to the solenoid FREEZE The cube sizeof the hot gas control thermostatvalve and the INLET WATER senses thesolenoid of the VALVE, OPEN warmerinlet water valve. temperatures of DURING HARVESTThe hot gas the harvest cycle,valve opens and and at a presethot refrigerant temperature,gas is opens the circuitdischarged into to the solenoid ofthe evaporator. the hot gas valve,The inlet water and the inlet watervalve opens and DRAINS valve. Botha fresh supply of valves close,water flows to incoming waterthe top of the stops and hot gasevaporator and is diverted back tothen drains into the condenser.the reservoir. The harvest cycleThe ice cubes is complete, andare released the freezing cyclefrom the inverted cube cups in the restarts.evaporator by the warming effect of the hot The automatic icemaking processrefrigerant gas condensing in the continues until the bin is full of ice, and theevaporator tubing, plus the incoming water bin thermostat senses a colderflowing around the inverted cups. The temperature.released ice cubes drop onto the spray The bin thermostat then opens the circuit to all components and the automatic icemaking process stops. December, 1987 Page 8

CS55 HOW IT WORKS: REFRIGERATIONFREEZE CYCLE From the condenser, the liquid refrigerantThe ice cubes are formed in an inverted flows through the liquid line, and the liquidmold that is refrigerated. line filter-drier. After the filter drier, theThe refrigeration process begins at the liquid refrigerant enters the meteringcompressor. There, refrigerant vapor is device, a capillary tube. After passing thecompressed and flows from the restriction of the capillary tube, thecompressor through the discharge line as refrigerant enters an area of relative lowa high temperature, high pressure gas. In pressure, the evaporator. In the tubing ofthe discharge line there is a strainer with the evaporator, the liquid refrigeranttwo outlets, one leads to the condenser, expands and evaporates, absorbing heatand one to a solenoid valve. Because the from the evaporator tubing and anything insolenoid valve is closed, the gas flows to contact with it such as water sprayedthe condenser, where heat is transferred against it.from the refrigerant to the air passing The refrigerant, now a low pressure, lowthrough the condenser. The refrigerant then temperature vapor, flows into thecondenses into a high pressure liquid. accumulator, which traps excess liquid refrigerant. The vapor, now primarily a gas, goes through the suction line tube to the compressor where the cycle is repeated.EVAPORATOR CAPILLARY TUBE ACCUMULATOR CONDENSER SUCTION LINE DISCHARGE LINE LIQUID FILTER-DRIER LINE STRAINER COMPRESSOR December 1987 Page 9

CS55 HOW IT WORKS: REFRIGERATIONHARVEST CYCLE the refrigerant gas follows the path of least(When the cubes are released) resistance and flows through the tubingThe ice cubes have been formed in an from the hot gas valve to the evaporator,inverted mold that was refrigerated. where the ice cubes are frozen.Now the refrigeration system will change to At the evaporator, the high temperaturewarm the cube mold and release the cubes. gases are cooled by the cold temperaturesThe process begins at the compressor. of the cube mold, and condense into liquid,There, refrigerant vapor is compressed and transferring heat to the mold which warmsflows from the compressor through the up and releases the cubes.discharge line as a high temperature, high The refrigerant, now a low pressure, lowpressure gas. Before the gas gets to the temperature vapor, flows into thecondenser,it goes through a strainer, the accumulator, which traps excess liquidstrainer outlet is connected to two tubes, refrigerant. The vapor, now primarily a gas,one of which leads to an electric valve, the goes through the suction line tube to thehot gas solenoid. When this valve opens, compressor where the cycle is repeated.EVAPORATOR CAPILLARY TUBE ACCUMULATOR CONDENSER SUCTION LINE DISCHARGE LINE LIQUID FILTER-DRIER LINE COMPRESSOR STRAINER

CS55 OPERATION & ADJUSTMENT:OPERATING CHARACTERISITCSThe information shown below covers a wide range of air and water temperatures. It is in-tended as a guideline only, and is based on data compiled from NEW CLEAN units. Allow avariation from each end of the range given.A. Refrigeration system pressures:High Side (discharge) B. Freeze cycle time...............15-30 minutesEnd of Freeze cycle ........... 100-130 psig C. Defrost cycle time ..............2- 3 minutesHarvest cycle (maximum) .. 150-190 psig D. Compressor ampsLow side (suction)End of Freeze cycle ........... 3-5psig Freeze cycle .......................3.3 to 3.5Harvest cycle (maximum) .. 60-75 psig Harvest cycle ......................6.3 to 6.7ADJUSTMENT OF THE CUBE SIZE: CORRECT SIZEAdjust only when cubes are too big orsmall.(See the illustration at the right.)1. Remove front panel, locate knob.2. To increse the size, turn knob 1/8 turnclockwise. To make the cubes smaller, turnthe knob 1/8 turn counterclockwise.3. Observe the size of the cubes in thenext two harvest cycles, if more adjustmentis needed, continue adjustments until thecorrect size is obtained.ADJUSTMENT OF THE BIN TOO SMALL, LITTLE OR NO ICE INTHERMOSTAT CONTROL THE CENTER OF THE CUBE.Adjust the bin thermostat when the icemaker turns off too soon (ice level low) or TOO BIG, THICK BULGE OF SOLIDwhen it turns off too late (ice storage bin ICE ON THE END.overfills.)To increase the ice level in the storage bin: Rotate the bin thermostat adjustmentscrew (located under front panel on controlbox cover) clockwise one eight turn at atime until the ice level that the machinemaintains is correct.To decrease the ice level in the storage bin: Rotate the bin thermostat adjustmentscrew counterclockwise one eight turn at atime until the ice level is correct. December, 1987 Page 11

CS55 MAINTENANCE AND CLEANINGA Scotsman Ice System represents a sizable investment of time and money in anycompany’s business. In order to receive the best return for that investment, it MUST receiveperiodic maintenance.It is the USER’S RESPONSIBILITY to see that the unit is properly maintained. It is alwayspreferable, and less costly in the long run, to avoid possible down time by keeping it clean;adjusting it as needed; and by replacing worn parts before they can cause failure. Thefollowing is a list of recommended maintenance that will help keep the machine running witha minimum of problems.Maintenance and Cleaning should be scheduled at a minimum of twice per year.General 9. Lift up spray platform, locate stand pipeThe periods and procedures for to the right of the opening, and pull it out tomaintenance and cleaning are given as a drain the reservoir. Replace the standpipe,guide. Cleaning will vary depending upon spray platform, and curtain.local water conditions and the amount of 10. Mix approximately 3 ounces ofice used. Each icemaker must be Scotsman Ice Machine Cleaner with 1.5maintained individually, in accordance with quarts of hot tap water, and pour thisits own requirements. solution into the reservoir at the curtainIcemaker base.The following should be scheduled at leasttwo times per year on this icemaker. Call 11. Plug the icemaker back in, and allow ityour local Scotsman Service Agency. to operate for at least 20 minutes. Then1. Shut off water supply to the icemaker. switch the cleaning toggle switch to the2. Disconnect the water inlet tube from the \"cleaning\" position for about three minutesconnection at the back of the icemaker, to release all the ice cubes from their cups.and check the screen at that point. If very 13. Switch the cleaning toggle switch to thedirty, carefully pull the screen out and clean \"operation\" position, and allow the machineit. Reassemble water line to icemaker. to run for 30 minutes or until all the acid3. Open the water shut off valve. taste is gone from the ice being produced.4. Unplug the power cord to disconnect 14. Pour hot water into the bin to melt theelectrical power to the icemaker. ice produced during cleaning, and to clean5. Remove the front panel. out the drain. Wipe the interior of the bin6. Clean the air-cooled condenser fins using with mild soap and hot water, rinse witha vacuum, whisk broom, brush, or if cold water.needed, coil cleaner. The icemaking Caution: Do not use the ice producedcapacity of this machine is reduced by a during cleaning, as it may have a strongdirty condenser coil. acid content.7. Remove the ice from the bin. 15. Replace the front panel.8. Remove curtain by pulling forward on theleft end, and then pulling the curtain to theleft and out of the machine.December, 1987 Page 12

CS55 SERVICE DIAGNOSISSYPMTOM............................... POSSIBLE CAUSE SUGGESTED CORRECTIONUnit will not run........................ Blown fuse or Replace fuse & check for............................................ breaker cause of blown fuse, reset breaker.Compressor cycles .................. Low voltage Check circuit forintermittently ............................ overloading. Check voltage at the supply to the building. ............................................ Clean the condenser ............................................ Dirty condenser Allow sufficient air ............................................ Air circulation around unit. ............................................ blocked Evacuate and recharge ............................................ Non condensable with nameplate charge ............................................ gas in systemCubes too small....................... Cube size control Check and adjust for ............................................ set too warm proper operation ............................................ Partially restricted Blow charge, evacuate ............................................ cap tube with new drier, weigh in nameplate charge. ............................................ Moisture in system Same as above ............................................ Overcharged Same as above ............................................ Undercharged Same as above, look for a leak.Cloudy cubes........................... Spray nozzels Clean ............................................ plugged Clean with Scotsman Ice Machine Cleaner ............................................ Needs cleaningIrregular size............................ Some jets plugged Clean jetscubes, some cloudy .............. Shortage of water Check water supplyCubes too large ....................... Cube size control Check and adjust for set improperly..................... proper operationDecreased ice ......................... Inefficient Replacecapacity.................................... compressor December 1987 Page 13

CS55 SERVICE DIAGNOSISLow Ice Capacity ..................... Leaky inlet water Replace valve ............................................ Non-condensable Replace refrigerant ............................................ gas in the system ............................................ High Head Pressure Dirty condenser, ............................................ Worn fan motor, ............................................ High air temperature ............................................ High water temperature ............................................ High air temp. Relocate machine or water line. ............................................ Overcharge Replace the refrigerant ............................................ Restricted system Replace the drier and refrigerantPoor harvest ............................ Too short defrost Replace cube size control............................................ Not enough water Check water supply............................................ Hot gas valve Replace............................................ Inlet water valve pluggedClean or replace............................................ Air and water temp Try to change location............................................ too lowNo harvest ............................... Cube size control Replace ............................................ does not work Replace ............................................ Hot gas valve Replace ............................................ does not work ............................................ Water inlet valve ............................................ does not workExcessive water....................... Drain plugged Clean drainin ice storage bin December 1987 Page 14

REMOVAL AND REPLACEMENT//////////////////////////WARNING//////////////////////////// gain access to the cube size control body.Disconnect ice machine from electrical Remove screws and dismount cube sizepower before proceeding. control from control box. Disconnect///////////////////////////////////////////////////////////////////// electrical wires from cube size control.Bin Thermostat 4. At the top of the machine, unclip cube1. Unplug the icemaker to disconnect size thermostat tube holder fromelectrical power. evaporator, (retain clips and tube2. Remove screws and cabinet front panel. assembly.) Pull cube size control capillary3. Remove screws and control box cover, tube from the tube, and remove completedisconnect electrical wires from bin cube size control from the ice maker.thermostat control. 5. Insert capillary tube on new thermostat4. Dismount bin thermostat from the control into tube holder, be sure that the end capsbox are in place.5. Remove rear panel. 6. Reverse the removal procedures to6. Pull bin thermostat capillary line from reinstall the cube size control. Adjust astube in ice storage bin. Remove complete needed.control from ice machine.7. Replace with new control in reverse Refrigeration Systemorder of removal. Any time the refrigeration system is CLIPS PLASTIC TUBEINSTALL BETWEEN CUPSCAP, SEALWITH FOOD GRADE SEALANT EVAPORATOR CUBE SIZE CONTROLCube Size Control opened, the drier must be replaced, the1. Unplug the icemaker to disconnect system evacuated and the exact chargeelectrical power. measured into the system. Any other2. Remove screws and cabinet top, front, procedure is NOT CORRECT, and willand rear panels. result in substandard performance.3. Pull knob from cube size control shaft.Remove screws and control box cover to

CS55 REMOVAL AND REPLACEMENT ELECTRICAL CONNECTIONSSpray Platform and Spray Jets WATER PUMP1. Open ice bin door. ASSEMBLY2. Pull out on the left side and removecurtain assembly.3. Lift the spray platform up and pull out toget to the water hose at the base of theplatform.4. Pull hose off of connection to sprayplatform, and pull platform from ice maker.5. Unscrew nozzle caps from the sprayplatform, check for spinner discs, clean orreplace the spinners.6. To replace, reverse the removalprocedures.CURTAIN WATER PUMP COVER Water Pump 1. Disconnect ice maker from electrical PULL OUT power. 2. Remove top panel.Water Inlet Valve 3. Open ice bin door pull up through top1. Unplug the icemaker to disconnect and remove.electrical power. 4. Remove curtain by pulling forward and2. Shut off water supply to icemaker. out on the left end..3. Remove the lower back panel, pull out to 5. Pull out spray platform, and disconnectexpose inlet water valve. hose.4. Disconnect electrical wires from inlet 6. Remove screw from water pump cover.water valve. 7. Pull top of water pump cover forward,5. Disconnect water lines to and from water and then pull water pump up and out of icevalve. maker.6. Remove valve from icemaker. 8. Dismount water pump from cover7. Reverse removal procedure to replace. assembly, and remount the replacement pump in its place, including water discharge hose. 9. Reverse the balance of the steps to reassemble. INLET WATER VALVE December, 1987 Page 16