KitchenAid G 4322312 Technical Education Download Page 11 | Manualshive

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Air Flow

Air inside the freezer section is cooled when it is drawn across the evaporator and circulated through
the freezer compartment.

Cold freezer air is also drawn into the refrigerator compartment and circulated to remove heat.

Refrigerator Air

Supply Duct

Evaporator Fan

Assembly

Freezer Air

Supply Grille

Freezer Return Air

Through Bottom of

Freezer Floor

Evaporator

Fig. 3

Condenser Fan

Condenser

Compressor

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Summary of Contents for G 4322312

Page 1: ...I TECHNICAL EDUCATION JOB AID 4322312 KAR 8 G MODEL 25 cu ft TOP MOUNT REFRIGERATOR FREEZER ...

Page 2: ... GOALS AND OBJECTIVES The goal of this Job Aid is to provide detailed information that will enable the service technician to properly diagnose malfunctions and repair 1998 G Model 25 cu ft Top Mount Refrigerator Freezers The objectives of the Job Aid are The service technician will Understand proper safety precautions Follow proper refrigerant recovery procedures Successfully troubleshoot and diag...

Page 3: ...ACCESS COMPONENT ACCESS COMPONENT ACCESS COMPONENT ACCESS Accessing the Component Compartment 7 Accessing the Heat Exchanger and Wiring Harness 8 Accessing Components in the Freezer Compartment 8 Accessing Component in the Refrigerator Compartment 12 SECTION FOUR DIAGNOSIS AND TROUBLESHOOTING DIAGNOSIS AND TROUBLESHOOTING DIAGNOSIS AND TROUBLESHOOTING DIAGNOSIS AND TROUBLESHOOTING DIAGNOSIS AND TR...

Page 4: ...rounding wires from individual components while servicing unless the component is to be removed and replaced It is extremely important to replace all grounding wires when components are replaced SAFETY To avoid the risk of electrical shock property damage personal injury or death WARNING Grounding Type Wall Receptacle Power Supply Cord with 3 Prong Grounding Plug WARNING ELECTRIC SHOCK HAZARD Disc...

Page 5: ...one The filter drier MUST be cut from the sealed system Never unbraze the filter drier from system tubing Applying heat will drive moisture back into the sealed system SEE SWEEP CHARGE PROCEDURES FOR THE 90 s Part No 4321717 FOR COMPLETE INSTRUCTIONS ON SERVICING THE SEALED SYSTEM R134a 1 000 ppm No effect Can cause frostbite Very slight irritation Can cause frostbite Can cause asphyxiation tachyc...

Page 6: ...VI ...

Page 7: ...ION OF LEARNING CONFIRMATION OF LEARNING CONFIRMATION OF LEARNING CONFIRMATION OF LEARNING EXERCISES EXERCISES EXERCISES EXERCISES EXERCISES T F F F T T T T F T F F F T T Section One True or False Statements 1 ___ 2 ___ 3 ___ 4 ___ 5 ___ Section One Label the Components Evaporator Condenser Compressor Filter Dryer Process Tube Capillary Tube Evaporator Outlet Condenser Outlet Heat Loop ...

Page 8: ...VIII ...

Page 9: ...IX ...

Page 10: ... regulated by an automatic air damper control The air damper control is a thermostat that manually actuates the air damper door This control governs the amount of refrigerated air entering the refrigerator compartment The control should be set to maintain 38 F to 40 F fresh food temperature Refrigerant Flow Refrigerant is pumped from the compressor and passes through the condenser the heat loop ar...

Page 11: ...through the freezer compartment Cold freezer air is also drawn into the refrigerator compartment and circulated to remove heat Refrigerator Air Supply Duct Evaporator Fan Assembly Freezer Air Supply Grille Freezer Return Air Through Bottom of Freezer Floor Evaporator Fig 3 Condenser Fan Condenser Compressor ...

Page 12: ...pens at 48 F to terminate the defrost heating About 33 minutes from the start of the defrost cycle the timer restores operation to the compressor circuit Fig 5 The bi metal thermostat contacts close at 13 F enabling the defrost heater to operate during the next defrost cycle Retaining Clip Retaining Clip Defrost Heater Evaporator Bi Metal Thermostat Fig 4 The defrost heater is suspended on the rig...

Page 13: ...er is provided with a refrigerant heat loop that is foamed in place around the freezer compartment door ___ 2 Air flow from the freezer compartment to the refrigerator compartment is regulated through a motorized air damper door ___ 3 The defrost timer is located inside the freezer compartment control box ___ 4 The defrost cycle is designed to occur after eight hours of compressor run time ___ 5 T...

Page 14: ...the six 6 screws securing the two sections of the heat exchanger cover to the back of the unit Fig 8 B 3 Remove the five 5 screws securing the component compartment cover to the cabinet Fig 8 C 4 Remove the two 2 screws securing the water supply valve to the base rail Fig 8 NOTE If a water supply valve is mount ed on the bracket it is not necessary to disconnect the copper supply tubing or the pla...

Page 15: ... Disconnect the automatic ice maker wiring harness connector and remove the automatic ice maker from the unit 5 Remove the extension from the water inlet tube Servicing the Evaporator and Other Related Components The evaporator evaporator fan defrost bi metal and defrost heater are located behind the evaporator cover 1 Remove freezer shelf and two 2 screws securing each shelf bracket to the back w...

Page 16: ...ling Take care not to break the five 5 clips securing the front of the air duct to the ceiling Fig 14 6 Disconnect the electrical wire to the light switch and light socket and remove the air duct the wiring harness will remain attached to a piece of insulating material which can be moved out of the way when removing the evaporator cover Fig 15 7 Remove the remaining screws securing the evaporator ...

Page 17: ...acket to the motor Servicing the Evaporator Defrost Bi metal and Defrost Heater The evaporator defrost bi metal and defrost heater are serviceable parts on these units Removing the Defrost Bi metal 1 Remove the freezer back panel 2 Unclip the thermostat from evaporator coil outlet tube and remove thermostat Fig 17 3 Cut either the red and blue leads or the blue and gray leads depending on which th...

Page 18: ...ve the drain tube heat sink Fig 19 5 Disconnect the wire leads to the heater element 6 Carefully remove the styorfoam air blocks from each side of the evaporator Fig 20 7 Carefully remove the three screws securing the heat shield to the back wall Fig 20 8 Carefully lift the evaporator and heat shield assembly up over the rear lip of the freezer floor and pull it away from the back wall The evapora...

Page 19: ...e temperature controls toward the center of the control box to prevent the control racks from interfering with the removal of the control box 4 Lower the control box down Carefully pull the freezer temperature sensing tube from the hole in the divider between the freezer and refrigerator compartments 5 Unplug the six pin wiring harness connector block and the violet and blue wire connectors The co...

Page 20: ...e Install the rack slide to the far right position to synchronize the thermostat setting properly When reassembly the control box make sure the temperature sensing tube is clipped in placing and taped to the control box stud Slide the insulating cap over the tube and onto the post to seal the hole in the divider between the freezer and refrigerator compartments Removing the Defrost Timer 1 Remove ...

Page 21: ...tat is attached to the back wall of the freezer compartment If a 1998 Model G 25 cu ft Top Mount Refrigerator Freezer is available perform the following service procedures A Perform all the steps necessary to pull the component compartment slide out tray out a few inches to access the compressor and condenser fan B Perform all steps necessary to remove the defrost heater element from the evaporato...

Page 22: ...r A Control knob set too warm Operating B Control out of calibration C Restricted condenser air D Inoperative condenser fan motor E Door left open F Heavy usage G Freezer fan motor inoperative H Defrost thermostat open I Defrost heater open J Freezer or condenser fan blade loose or off K Evaporator heavily frosted L Defrost control stuck in compressor run mode M Drain plugged N Loss of refrigerant...

Page 23: ...tab on vertical cam C Module shut off switch and contacts shorted and Burned D Motor stalled or stripped E Check ejector position F Bail shut off arm in vacation mode no ice G Bail shut off arm binds when raised or lowered H Little no alumilastic on thermometer I Housing to mold screws not seated J Heater not staked in mold K Wrong heater temperature L Broken S O lever miscalibrated shut off switc...

Page 24: ...075 10428601 10991107 10449501 10654206 10884501 10543603 GENERAL COMPONENT INFORMATION BE SURE AND USE CORRECT REPLACEMENT PARTS 120VAC COMPONENT COMPRESSOR RUN WINDING START WINDING PTC RELAY OVERLOAD RUN CAPACITOR THERMOSTAT DEFROST TIMER MOTOR DEFROST HEATER BI METAL EVAPORATOR FAN CONDENSER FAN MULLION HEATER WATTAGE 120VAC 7 505 11 10 12 1 OHMS RESISTANCE 2 6 4 35 13000 30 1650 SERVICE INFOR...

Page 25: ...18 NOTES ...

Page 26: ... TECH TIPS TYPICAL EXTERNAL SWEAT PATTERNS FRONT RIGHT SIDE BOTTOM FRZ DOOR CENTER MULLION BOTTOM REF DOOR LOWER MULLION TOP REF DOOR 3 CLASSIFICATIONS OF CONDENSATION 1 Haze or fog 2 Beading 3 Beads or small drops 4 Drops running together LEFT SIDE 3 BACK ...

Page 27: ...20 WIRING HARNESS SCHEMATIC ...

Page 28: ...21 WIRING DIAGRAM ...

Page 29: ... Refrigerator door open STRIP CIRCUITS 1 Defrost Circuit Defrost Heater Energized 2 Cooling Circuit Freezer thermostat calling for cooling at instant of compressor start 3 Cooling Circuit Freezer thermostat calling for cooling running ...

Page 30: ...23 5 Freezer Light Circuit Freezer Door Open 6 Automatic Ice Maker Water Supply Valve Circuit T CABINET MOISTURE CONTROL SWITCH 6 Mullion Heater Circuit MULLION HEATER ...

Page 31: ... Number Marketing Channel if present KitchenAid Brand K Product Identification TR Top Mount Freestanding Reversible Door Swing Merchandise Scheme Series S Superba Capacity Features Accepts Ice Maker Kit Year of Introduction G 1998 Color WH White AL Almond BL Black Engineering Changes Numeric The model number for the KitchenAid brand 25 cu ft Top Mount Refrigerator Freezers contains the following d...

Page 32: ... Repairs when refrigerator is used in other than normal home use C Damage resulting from accident alteration misuse abuse fire flood acts of God improper installation or installation not in accordance with local electrical codes or plumbing codes D Any food lose due to product failure E Any labor costs during the limited warranty F Replacement parts or repair labor costs for units operated outside...

Page 33: ...26 NOTES ...

Page 34: ...X For the way it s made ...

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