GE GFE24JBL Technical Service Manual Download Page 54

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2. Remove two 1/4-in. hex-head screws

securing the drawer brackets to the lower

basket slides (located on the inside of the

drawer brackets).

3. Tilt the drawer front up (1) to remove the tabs

of the drawer bracket from the lower basket

slides, then pull it away from the freezer (2)

to release the drawer bracket hooks from the

lower basket slides.

Drawer Bracket

Hook

Drawer Bracket

Tabs

Left Drawer

Bracket

Right Drawer

Bracket

Summary of Contents for GFE24JBL

Page 1: ...YE18JBL GYE18JML GYE18JSL GYE18JEM GFE24JGKF GFE24JMKF GFE24JSKF GFE24JBL GFE26JBM GFE26JEM GFE26JMM GFE26JSM XFE26JSM Technical Service Guide September 2018 2017 2018 18 24 26 Cu Ft Bottom Freezer Refrigerators ...

Page 2: ...ctrical power is required for diagnosis or test purposes disconnect the power immediately after performing the necessary checks RECONNECT ALL GROUNDING DEVICES If grounding wires screws straps clips nuts or washers used to complete a path to ground are removed for service they must be returned to their original position and properly fastened GE Appliances a Haier Company Copyright 2018 All rights ...

Page 3: ...itional Specifications 12 Clearances 12 Leveling 12 Leveling Refrigerator Doors 13 Operating Instructions 14 Temperature Control 14 Cooling System Off 14 F to C 14 Tone Volume 14 Door Alarm 14 Lock 15 Turbo Cool 15 Demo Mode 15 Sabbath Mode 15 Air Flow 16 Refrigerator Air Flow 16 Freezer Air Flow 16 Ice Box Air Flow 16 Cabinet Top 17 Cabinet Top Components 17 Hinge Covers 18 Top Interface 18 ...

Page 4: ...t Door Bins 24 Right Door Bins 24 Dispenser Door 25 Dispenser Door Removal 25 Left Center Hinge Removal 25 Dispenser Board 25 Dispenser Board Connector Locations 26 Dispenser LEDs 26 Dispenser Recess Components 27 Ice Funnel 28 Paddle Switch 28 Duct Door Motor 29 Duct Door 29 Recess Heater 29 Articulating Mullion 30 Water Tank Cover 31 Water Tank 31 Dual Valve 31 Diodes 32 Ice Box Compartment 33 I...

Page 5: ...39 Top Door Bumper 39 Closure Cam 39 Top Hinge Bushing 39 Door Bottom 40 Door Bottom Component Locator 40 Bottom Door Bumper 40 Bottom Hinge Bushing 40 Door Stop 40 Water Filter Cartridges 42 Water Filter MFWP 43 Water Filter XWP 43 Refrigerator Compartment 44 Refrigerator Component Locator 44 Adjustable Shelves 45 Climate Zone Pans 45 Pan Covers 45 Mullion Striker 46 Upper LED Housing 46 Refriger...

Page 6: ...on Gears 56 Lower Basket Slides 57 Slide Holders 57 Freezer Thermistor 57 Freezer Drawer Switch 58 Freezer LEDs 58 Evaporator Cover 59 Evaporator Fan 61 Evaporator Components 62 Evaporator Component Locator 62 Icemaker Blower Fan 63 Evaporator Thermistor 63 Defrost Thermostat 64 Defrost Heater 65 Evaporator 65 Thermistors 66 Thermistor Check Points 66 Thermistor Replacement 66 Defrost Operation 67...

Page 7: ...nt Cover 72 Machine Compartment Component Locator 72 Isolation Valve 73 Drain Tube 74 Condenser Fan 74 PTCR Relay Overload 76 Capacitor 77 Compressor 77 Drier 78 Condenser 78 Refrigeration System 79 Replacing Sealed System Components 80 Evacuation and Charging Procedures 80 Lokring 81 Lokring Rules 81 Process Tube Joint 81 Drier Joints 82 Evaporator Joints 82 Compressor Joints 83 Condenser Joints ...

Page 8: ... 8 Schematic Diagram 86 Index 87 ...

Page 9: ...arge stored energy Step 3 Isolate the appliance Step 6 Try It verify that the appliance is locked out GE Factory Service Employees are required to use safety glasses with side shields safety gloves and steel toe shoes for all repairs Steel Toed Work Boot Electrically Rated Glove and Dyneema Cut Resistant Glove Keeper Dyneema Cut Resistant Glove Cut Resistant Sleeve s Plano Type Safety Glasses Braz...

Page 10: ...ess Steel T Black Stainless W White Door Swing F French Handle Color B Black S Stainless Steel W White Engineering Digit Finish B Black Stainless G High Gloss M Slate S Stainless Steel Serial Number The first two characters of the serial number identify the month and year of manufacture The letter designating the year repeats every 12 years Example FL123456S March 2018 A JAN D FEB F MAR G APR H MA...

Page 11: ...n result from failure to follow these instructions Service by a qualified service technician only Disconnect power before servicing this product Reconnect all grounding devices after service Replace all parts and panels before operating WARNING ELECTRICAL SPECIFICATIONS Max Defrost Control w No Door Openings 96 hrs 40 min Evap Defrost Thermostat Defrost Heater Fill Tube Heater Mullion Heater Reces...

Page 12: ...ver 1 inch Back 2 inches 115 volt 60Hz 15 or 20 amp power supply is required An individual properly grounded branch circuit or circuit breaker is recommended NOTE A GFI Ground Fault Interrupter is not recommended It is required that the refrigerator be plugged into a grounded 3 prong outlet Ground prong should not be removed Use of a 2 prong adapter or an extension cord is prohibited Frayed or dam...

Page 13: ... After the cabinet has been properly leveled a 1 4 in Allen wrench can be used to turn the pin in the bottom hinges of the refrigerator doors To Adjust the Door Height Turn the left or right adjustment pin clockwise to raise or the the adjustment pin counterclockwise to lower the corresponding door Adjustment Pin Locations Leveling Refrigerator Doors ...

Page 14: ...will vary from the set temperature based on factors such as door opening amount of food defrost cycling and room temperature NOTE Frequent door openings or a door left open for periods of time may increase the internal temperature of the refrigerator compartment temporarily Press the Alarm pad to toggle the door alarm between ON and OFF states The alarm will sound if any door or drawer is left ope...

Page 15: ...atically exit four days after being entered TurboCool rapidly cools the refrigerator compartment in order to more quickly cool foods Use TurboCool when adding a large amount of food to the refrigerator compartment putting away foods after they have been sitting out at room temperature or when putting away warm leftovers It can also be used if the refrigerator has been without power for an extended...

Page 16: ...ing is required the main board turns on the fan to circulate cold air from the evaporator through the evaporator cover The air is pulled back to the evaporator through two ducts built into the bottom of the evaporator cover That air then gets pulled back across the evaporator coil to extract the heat and moisture Freezer air is circulated into the ice box by the ice blower fan located in the freez...

Page 17: ...ft FF Door Switch RJ45 and Humidity Sensor Board Right FF Door Switch Ambient Thermistor Top Interface Door Water Line Left Closure Spring Right Door Closure Right Door Hinge Right Closure Spring Switch Harness Connector AC Harness Connector DC AC and DC Door Connections Cabinet Top Components ...

Page 18: ...itch harness DC harness and RJ45 connector and humidity sensor board If the interface needs to be replaced all of the components under the interface will come as part of the assembly If a component under the interface needs to be replaced that component can be ordered separately To service any of the components under the top interface the top interface must be put into the service position see the...

Page 19: ... see Top Interface Removal under Top Interface in this section of this service guide 3 Disconnect three door wiring connectors tucked into the top of the cabinet 4 Disconnect the door water line from the 90 union located behind the refrigerator and pull the water line from the cabinet through the front 5 Remove the 1 4 in hex head screw mounting the ground wire to the hinge 6 Remove three 5 16 in ...

Page 20: ...rd Diagnosing Before changing the board ensure the proper voltages are going to the humidity board Humidity sensor voltages can be checked at the humidity board or main board Connector on Humidity Board Orange to tan black 13 VDC Orange to white 13 VDC White or tan black to red white 5 VDC Yellow to red white 1 4 VDC NOTE 0 or 5 VDC from yellow to red white may indicate a bad humidity sensor Repla...

Page 21: ... VAC circuit to the main board Switch Not Pressed Door or Doors Open J7 on Main Board Pin 6 purple white to pin 9 orange 120 VAC Switch Pressed Doors Closed J7 on Main Board Pin 6 purple white to pin 9 orange 0 VAC FF Door Switch Removal 1 Place the top interface in the service position see Top Interface Removal under Top Interface in this section of the service guide 2 Disconnect the two pin swit...

Page 22: ... it takes some force to release the handle from the mounting fasteners mounted to the door 2 Pull the handle away from the door The drawer handle slides and locks into fasteners mounted to the drawer Drawer Handle Removal 1 Slide the handle to the left to release it from the mounting fasteners 2 Pull the handle away from the door Mounting Fasteners Door Handles Freezer Drawer Handle ...

Page 23: ... old gasket out of the retaining channel 2 Soak the new gasket in warm water to make it pliable 3 Push the barbed edge of the gasket into the retainer channel NOTE A thin coat of petroleum jelly or paraffin wax can be applied to the hinge side sealing side of the gaskets to improve closure across the cabinet The door gaskets have a left and right side When installing a new gasket ensure the wider ...

Page 24: ...the middle bin must be used in the middle location The right refrigerator door has four removable door bins The top three bins can be interchanged but the bottom bin must be used in the bottom location Bin Removal To remove door bins slide bin up and then pull away from the door Dispenser Left Door Bins Right Door Bins ...

Page 25: ...penser board If voltage is not present check connections at the door hinge and main board before replacing the main board The display LEDs and numerical segments can be tested by using Service Mode Test t3 J2 to J4 on Main Board J2 pin 8 red silver to J4 pin 1 black 13 VDC J2 pin 8 red silver to J4 pin 3 blue 13 VDC J1 on Dispenser Board Red to black 13 VDC Red to blue 13 VDC Dispenser Board Remov...

Page 26: ... The dispenser board turns on the LEDs when the light button is pressed on the dispenser board Dispenser LED Diagnosing J5 on Dispenser Board Red to yellow 13 VDC Dispenser LED Removal 1 Remove the dispenser board panel from the door 2 Squeeze the round clip in the middle of the board and lift up on the LED board 3 Disconnect the wires from the board Dispenser Board Connector Locations Dispenser L...

Page 27: ... 27 Duct Door Spring Duct Door Door Water Spout Paddle and Paddle Switch Duct Door Motor Drip Tray Shown with ice funnel removed Dispenser Recess Components ...

Page 28: ... the recess then lift up on the paddle 5 Remove the switch and wiring from the backside of the paddle making note of the wiring routing for reinstallation Mounted to the backside of the paddle is a three way micro switch The switch tells the dispenser board when the paddle is being pressed or when it is in the home position The ice funnel directs cubed and crushed ice from the door chute to the co...

Page 29: ... Pull the duct door off the shaft of the duct door motor The duct door is used to keep ambient air from entering the ice box When ice is called for the duct door motor turns to open the duct door The duct door spring then return the duct door to the closed position within 5 seconds of releasing the paddle If the door is not fully closing check the duct door spring to make sure it is not broken or ...

Page 30: ...he right door If the articulating mullion does not make contact with the mullion striker the dispenser door will need to be raised Articulating Mullion Diagnosing The heater in the mullion has a resistance of 24 ohms J2 on Main Board Pin 8 red silver to pin 6 black yellow 13 VDC Articulating Mullion Removal 1 Open the dispenser door and flip the articulating mullion to the closed position Articula...

Page 31: ...collar of the door water line union while pulling on the tank tubing to remove the tank tubing from the union Clip Collar The dual valve is located behind the water tank cover of the dispenser door One solenoid opens the dispenser side of the valve and the other solenoid opens the icemaker side of the valve Dual Valve Diagnosing The main board supplies voltage to the dual valve and isolation valve...

Page 32: ...lines from the dual valve 4 Remove two Phillips head screws 5 Disconnect the 4 pin water valve connector Clip Collar Collar The isolation valve is shared between the dispenser and icemaker valves circuits diodes are used to prevent voltage from the main board going to the valve not intended to be energized The diodes are part of the dual valve harness attached to the dual valve solenoids Should on...

Page 33: ... Compartment Upper Port Gasket Lower Port Gasket Ice Box Thermistor Icemaker Access Cover Feeler Arm Collar Port Icemaker On Off Switch Icemaker Icemaker Fill Cup Auger Motor Icemaker Status LED Ice Box Components ...

Page 34: ...aced as an assembly Turning the auger in the bucket clockwise produces crushed ice turning the auger counterclockwise releases cubed ice Ice Bucket Removal 1 Open the ice box door 2 Lift up on the handle of the bucket and pull the bucket out of the ice box The dispenser door has two ice box port gaskets The gaskets are used to seal the ice box inlet and outlet air ports to the inlet and return air...

Page 35: ...cemaker and auger motor as well as provide the ice box thermistor with a mounting location Icemaker Access Cover Removal 1 Remove the ice bucket 2 Remove three Phillips head screws 3 Unclip the thermistor from the backside of the cover The main board uses the thermistor to monitor ice box temperatures and regulate the icemaker blower fan To access the thermistor remove the icemaker access cover To...

Page 36: ...es an electronic icemaker The toggle switch on the front of the icemaker turns the icemaker ON OFF The green LED on the front of the icemaker indicates that there is power to the icemaker and the icemaker is turned on The icemaker will produce seven cubes per cycle approximately 100 to 130 cubes in a 24 hour period depending on freezer compartment temperature room temperature number of door openin...

Page 37: ...ver 120 VAC to the water valves and to J18 on the main board The door switches do not need to be engaged in order to cycle the icemaker J18 and J7 on Main Board During Fill J18 white J7 pin 9 orange 120 VAC Icemaker Valve During Fill White orange 120 VAC Isolation Valve Connector During Fill Yellow black orange 60 VAC As a result of the diodes in the isolation valve circuit only 60 VAC will be rea...

Page 38: ...al steps under Top Door Hinges in the Cabinet Top section of this service guide 3 Lift the door off the center hinge 1 Remove the right door 2 Remove three screws for the center hinge using a 5 16 in socket or T20 Torx head bit Right Door Removal Right Center Hinge Removal ...

Page 39: ...Closure Cam Removal 1 For the side needing to be removed follow Top Left Door Hinge Removal steps under Top Door Hinges in the Cabinet Top section of this service guide 2 Remove one T20 Torx head screw The top hinge inserts into the top bushing If worn the bushing can be replaced Top Hinge Bushing Removal 1 For the side needing to be removed follow Top Left Door Hinge Removal steps under Top Door ...

Page 40: ...val 1 For the side needing to be removed follow Top Left Door Hinge Removal steps under Top Door Hinges in the Cabinet Top section of this service guide 2 Lift the door off the center hinge The center hinge pin inserts into the bottom bushing If worn the bushing can be replaced Bottom Hinge Bushing Removal Follow the Door Stop Removal steps under Door Stop in the next section Bottom Door Bumper Re...

Page 41: ...ushing to align the tabs of the bushing with the slots in the door stop 6 Pull the bushing out of the door stop NOTE Like the door stop the door is also keyed Once a bushing is reinstalled into a door stop the tabs of the bushing will need to be aligned with the slots in the door to reinstall the door stop Slots Tab Tab ...

Page 42: ... to XWF filters mid 2018 When to Replace the Filter There is a replacement indicator light for the water filter cartridge on the dispenser A red light will start blinking when the filter needs to be replaced soon The filter cartridge should be replaced when the replacement indicator light turns red or if the flow of water to the dispenser or icemaker decreases or if the ice cubes are getting hollo...

Page 43: ...er pad on the dispenser board for three seconds NOTE Remove the water filter to immediately stop any water leak from the Icemaker Dispenser system The water filter manifold acts as a cut off valve when the filter is removed and will prevent further leaking Water Filter MFWP Water Filter XWP 1 Follow XWF Filter Cartridge Removal steps 2 Line the ports on the filter with the ports of the manifold an...

Page 44: ...e Box Return Air Duct FF Thermistor Center Track Air Tower Climate Zone Slides x3 Climate Zone Vegetable Pans x2 Lower LED x2 Climate Zone Meat Pan MWFP style filter is shown The 26 cu ft models will use XWF style filter The 18 and 24 cu ft model will transition to XWF filters mid 2018 Refrigerator Component Locator ...

Page 45: ...n 2 Lift the front of the desired pan up and out of the pan cover The refrigerator has two pan covers The two vegetable climate zone pans slide in and out of the upper pan cover The lower meat climate zone pan slides in and out of the lower pan cover Each pan cover has a climate zone slide to adjust the air flow into the pans Moving the upper climate zone slides to the left and the lower slide to ...

Page 46: ...h models use a smaller LED housing 18 cu ft 24 26 cu ft Upper LED Diagnosing When the LED housing fails completely the lower LED boards will still work Main Board with Door Open J4 pin 2 red yellow J5 pin 1 pink black 4 13 VDC see NOTE Two Pin Connector at Cabinet Red black 4 13 VDC see NOTE NOTE When one or both of the refrigerator doors are opened the main board delivers 4 VDC to the LED housing...

Page 47: ... LED boards and increases the voltage to 13 VDC for full brightness Lower LED Removal The LED board and LED shield are separate parts it is recommended to replace both parts when an LED board is being replaced 1 Remove all shelves pans and pan covers 2 Using a putty knife or small flat blade screw driver gently pry the LED shield away from the cabinet For the left LED pry from the upper rear corne...

Page 48: ...center of the air tower grill to release two tabs holding the grill to the back wall location indicated by the arrows below then tilt the grill down 3 Lift the air tower grill up and off the air tower 4 Remove two 1 4 in hex head screws to remove the center track 5 Using a flat blade screw driver push in on three of the six tabs one side securing the air tower to the back wall 6 Tip the top of the...

Page 49: ...F thermistor reading Damper Diagnosing The damper can be operated using Service Mode Test t7 In test t7 will open the damper pause briefly then close the damper The damper motor has an approximate resistance of 415 ohms and can be checked at the damper connector or at the J3 of the main board J3 on Main Board Pin 1 blue yellow pin 2 white black 415 ohms Pin 3 red black pin 4 yellow 415 ohms Damper...

Page 50: ...ce the manifold is out of the spacer pull the manifold and the manifold water lines out of the cabinet 5 Disconnect the outlet water line of the manifold from the 90 union 6 Remove two 1 4 in hex head screws to remove the water line cover 7 Remove the Permagum from around the opening and save for reinstallation 8 Remove the water filter cartridge 9 Pull the water filter cover away from the manifol...

Page 51: ...outlet of the isolation valve The housing slides and clips into the top of the cabinet Manifold Removal 1 Follow steps 1 through 7 of MWFP Manifold Removal in this section of the service guide 2 Push two locking tabs of the housing down while pulling forward on the housing 3 Continue pulling the housing forward to remove the housing and water lines from the cabinet 4 Remove the filter cover from t...

Page 52: ...t The upper sides of the basket support and allow the front of the upper basket to roll in and out The basket should not be filled higher than the rim of the basket If overfilled the basket may stick or jam when opening or closing Bottom Basket Removal 1 Open the freezer drawer front until it stops 2 Remove the upper basket 3 On 18 cu ft models open the refrigerator doors doors do not need to be o...

Page 53: ... the face of the gasket to improve the seal across the cabinet The drawer front should be removed from the freezer without disconnecting the front from the drawer brackets Following the steps below will help maintain proper seal and alignment during the reattachment process For 18 Cubic Foot Models 1 Remove the upper and lower baskets 2 Remove two 1 4 in hex head screws securing the drawer bracket...

Page 54: ...nside of the drawer brackets 3 Tilt the drawer front up 1 to remove the tabs of the drawer bracket from the lower basket slides then pull it away from the freezer 2 to release the drawer bracket hooks from the lower basket slides 1 2 Drawer Bracket Hook Drawer Bracket Tabs Left Drawer Bracket Right Drawer Bracket ...

Page 55: ...x2 Lower Basket Slide x2 Evaporator Fan Connector Cover Freezer Drawer Switch Freezer LED x2 Ice Box Return Air Duct Evaporator Fan Cover Evaporator Cover Freezer Thermistor Pinion Cross Bar Pinion Gears Not present on 18 cu ft models Freezer Component Locator ...

Page 56: ...ont see Drawer Front Removal in the Freezer Drawer section in this service guide 2 Leave the inner rails of the lower slides extended 3 Gently pry one of the pinion gears away from the inner rail of the slide 4 Once the pinion bar is removed from one side slide the bar to the opposide side to remove the bar from the other pinion gear Pinion gears connect to the inner rail of the freezer slide The ...

Page 57: ...o assist in closing the drawer once the drawer is within two inches from the cabinet Lower Basket Slide Removal 1 Remove the drawer front see Drawer Front Removal in the Freezer Drawer section in this service guide 2 Leave the inner rails extended 3 For 24 and 26 cu ft models remove the pinion cross bar see Pinion Cross Bar Removal in this section of this service guide 4 Remove one T 20 Torx head ...

Page 58: ... to the LED boards and increases the voltage to 5 VDC for full brightness The freezer drawer switch is an AC volt switch that has Normally Closed contacts N C The switch is actuated by the drawer front to tell the main board to turn the freezer LEDs on or off Freezer Drawer Switch Diagnosing When the drawer is opened the switch contacts are closed allowing 120 VAC to travel to the main board When ...

Page 59: ...D board from the LED shield The icemaker blower fan evaporator thermistor defrost thermostat defrost heater and evaporator are located behind the evaporator cover The evaporator fan is mounted to the backside of the evaporator cover Evaporator Cover Removal 1 Remove baskets see Upper Basket Removal under Upper Basket and Bottom Basket Removal under Bottom Basket in the Freezer Drawer section of th...

Page 60: ... while pushing down on the fan cover 8 Once the fan cover is in the down position pull the fan cover off the evaporator cover 9 Remove two 1 4 in hex head screws from the evaporator cover 10 Pull the bottom of the cover out and down as much as the lower rails will allow 11 Grab the evaporator cover from the fan opening and tilt the evaporator cover down 12 Grab the top of the evaporator cover and ...

Page 61: ...Service Mode Test t8 to operate the evaporator fan J2 and J4 on Main Board J2 pin 3 white silver J4 pin 2 red yellow 13 VDC J2 pin 3 white silver J2 pin 1 blue silver 3 4 VDC Low Speed 2200 RPM J2 pin 3 white silver J2 pin 4 yellow black 7 8 VDC High Speed 2800 RPM J2 pin 3 white silver J2 pin 4 yellow black 10 11 VDC Evaporator Fan Removal Follow Evaporator Cover Removal steps under Evaporator Co...

Page 62: ...or Components Evaporator Return Air Passage Ground Wire Icemaker Blower Fan Fresh Food Air Inlet Evaporator Thermistor Defrost Thermostat Evaporator Fan Cabinet Connector Defrost Heater Evaporator Component Locator ...

Page 63: ...of the freezer behind the evaporator cover When the left fresh food door is opened the fan will shut off The main board can operate the fan at different speeds depending on the ice box thermistor temperature and operating state of the refrigerator Icemaker Blower Fan Diagnosing Use Service Mode Test t8 to operate the icemaker blower fan J2 and J14 on Main Board J2 pin 8 red to J14 pin 4 white silv...

Page 64: ... fill the bell connectors fully with silicone grease Part WR97X163 8 Clip the thermostat to the inlet tube of the evaporator Silicone Grease The defrost thermostat over temperature thermostat is located in the upper right rear corner of the freezer The defrost thermostat is clipped to the inlet line of the evaporator coil to prevent a runaway state of defrost The thermostat will open when a temper...

Page 65: ...nnectors The evaporator coil is an aluminum set of coils located in the freezer The refrigerant in the aluminum coils pulls the heat energy from the air circulated across it by the evaporator fan causing the air to become cold Evaporator Removal 1 Remove the evaporator cover see Evaporator Cover Removal steps 2 Remove the icemaker blower fan 3 Unclip the defrost thermostat and evaporator thermisto...

Page 66: ...iring After the splices are complete fill the bell connectors fully with silicone grease Part WR97X163 7 Reinstall the thermistor into its original location Thermistor Values Temperature Degrees F Temperature Degrees C Resistance in Kilo Ohms 40 40 166 8 kΩ 31 35 120 5 kΩ 22 30 88 kΩ 13 25 65 kΩ 4 20 48 4 kΩ 5 15 36 4 kΩ 14 10 27 6 kΩ 23 5 21 kΩ 32 0 16 3 kΩ 41 5 12 7 kΩ 50 10 10 kΩ 59 15 7 8 kΩ 6...

Page 67: ...rmistor temperature reaches 55 F or until the heater on time reaches 40 minutes whichever happens first Adaptive Defrost is a defrost system that adjusts to a refrigerator s surrounding environment and household usage Unlike conventional defrost systems that use electromechanical timers with a fixed defrost cycle time Adaptive Defrost utilizes electronic controls to determine when the defrost cycl...

Page 68: ... 68 Cabinet Rear Water Line Cover 90 Union Dispenser Door Water Line Manifold Supply Line Jumper Tube Main Board Cover Machine Compartment Cover Manifold Outlet Line Cabinet Rear Component Locator ...

Page 69: ... component may create the appearance that the main board has failed If proper voltage is present to the board disconnect all DC loads from the board and cycle power using the master switch to see if the green LED returns If the green LED does return do not replace the main board but isolate the failed component J19 pin 3 brown to J7 pin 9 orange 120 VAC Main Board Removal 1 Disconnect power to the...

Page 70: ... 70 J18 J17 J19 J7 J10 J1 J5 J2 J14 J3 J4 J15 J20 J16 J13 J12 Green LED Location J6 Main Board Connector Locations ...

Page 71: ... GEA Bus Communications J4 2 13 6 VDC J4 3 Board DC Ground J4 4 13 6 VDC J4 5 GEA2 Bus Communications J5 1 LEDs J5 2 Open J5 3 Fill Tube Heater and Recess Heater J5 4 Open J5 5 5 VDC output to Ambient Evap thermistors and Humidity Sensor J5 6 Humidity Sensor J6 Not Used J7 1 Auger motor J7 2 Auger motor direction signal for cubed J7 3 Dispenser Water Valve J7 4 Auger Line in J7 5 Open J7 6 Fresh F...

Page 72: ... step 2 2 Remove five 5 16 in hex head screws 3 Lift cover off of the base pan Drier Compressor Electricals Condenser Compressor Isolation Valve Power Cord Connector Rear Wheel x2 Process Tube Drain Tube Condenser Fan Shroud Base Pan 1 4 screw Machine Compartment Cover Machine Compartment Component Locator ...

Page 73: ...e Dispenser Door section of this service guide are used to prevent voltage from the main board going to the valve not intended to be energized Isolation Valve Diagnosing To test the isolation valve engage the dispenser paddle switch or cycle the icemaker Voltage checks can be performed at the isolation valve connector Isolation Valve Connector Yellow black orange 60 VAC As a result of the diodes i...

Page 74: ...The fan is a DC fan motor that operates at three speeds high medium and low although low and medium have the same target speed The speed of the fan is controlled by the voltage output from the main control board The main control board does not monitor the speed of the motor since the motor does not have a fourth wire for RPM feedback Condenser Fan Diagnosing Use Service Mode Test t8 or t9 to opera...

Page 75: ...placed during reassembly 5 Pull the shroud towards the base pan then up to release the shroud from the mounting bracket underneath the shroud 6 Once the shroud is released from the mounting bracket tip the shroud towards the compressor 7 Carefully push the drier towards the left to provide the shroud with an opening for removal 8 Pull the shroud and fan assembly out of the machine compartment 9 Pu...

Page 76: ...nals if reading open replace the PTCR Main Board J19 pin 1 black to J7 pin 9 orange 120 VAC Overload Relay Wiring Orange to black 120 VAC 10 Remove two 1 4 in hex head screws to separate the fan motor bracket and remove the motor from the shroud PTCR Relay Overload Removal 1 Remove the machine compartment cover 2 Unhook retainer clip securing the PTCR relay overload to compressor 3 Pull PTCR relay...

Page 77: ...relay overload and capacitor 3 Remove one 1 4 in hex head screw to disconnect the ground wire from the left side of the compressor 4 Follow the recovery procedure and disconnect the suction and discharge lines The capacitor plugs directly into the PTCR relay overload mounted on the left side of the compressor and is secured with a bale strap Capacitor Diagnosing 1 Discharge the capacitor by simult...

Page 78: ...1 Remove the machine compartment cover 2 Follow recovery procedures and cut or unbraze the tubing from the drier If cutting the capillary tube make sure to take care not to pinch the capillary tube shut The condenser is a rolled style coil which the refrigerator uses to exchange heat from inside the cabinet to outside the cabinet Condenser Removal 1 Remove the machine compartment cover 2 Remove th...

Page 79: ...he refrigerant has reached the evaporator it has completely condensed into a liquid As the high pressure liquid passes through the capillary and enters the low pressure evaporator it quickly expands and evaporates During evaporation the refrigerant absorbs heat through the evaporator At the outlet of the freezer evaporator low pressure vapor returns to the compressor through the suction line Hot G...

Page 80: ...ive Equipment when working with refrigerants and nitrogen holding a charge in some replacement parts Contact with these gases may cause injury 1 Evacuate the system to 20 in vacuum using the refrigerator compressor and or recovery pump 2 Purge the system using nitrogen at 25 35 SCFH 3 Perform necessary repairs to the sealed system 4 Pressurize the system to 250 PSIG with nitrogen and test for leak...

Page 81: ...pply three drops of Lokprep to each end of the tubing staying 1 8 in from the end Tubing must bottom out at the internal stop when placed in the connector Rotate the fitting at least one complete revolution to evenly distribute Lokprep Lokprep should not be used after the expiration date There will be one minute to compress the connector once Lokprep has been applied Make certain the connector is ...

Page 82: ...as close to the aluminum connection as possible If the capillary joint is not leaking a cut can be made closer to the aluminum on the capillary side This allows the evaporator to be reconnected using two suction line connectors that are listed in step 5 3 Remove the rubber wrap and mastic from the joints of the new evaporator Cut the replacement evaporator as pictured below cut as the suction line...

Page 83: ... joint WR97X10021 for suction jumper created to cabinet suction line some tubing bending required and WR97X10078 for access valve connect the tubing to the compressor 1 Cut the condenser tubing as pictured below cut about 2 inches below the elbow entering the compressor 2 Cut the condenser tubing as pictured below cut as close to the bend as possible 3 Shorten the ends of the new condenser to leav...

Page 84: ...Freezer button decreases the test number while the Fridge Button increases the test number Press Alarm on the dispenser to execute the test indicated by the displays A test mode must be selected within 30 minutes or the display board will execute a software reset to exit the service mode selection menu To exit Service Mode select Test t12 Refrigerator Reset Service Mode will automatically exit aft...

Page 85: ...or 60 seconds t7 Damper Test FF Damper will open pause briefly and then close t8 Fan Speed Test Cycles each of the system fans on for 5 seconds in the following order Evaporator Ice Box and Condenser t9 Cooling System Test This mode runs the sealed system 100 of the time This test will automatically time out after 1 hour of run time A refrigerator reset may exit this mode t10 Enter Pre Chill This ...

Page 86: ...ER RED SILVER RED SILVER BLUE LOW VOLTAGE DC CLASS 2 CIRCUITS MAIN CONTROL BOARD J7 1 J7 2 J7 3 J7 4 J7 6 J7 7 J19 2 J19 1 J19 3 J18 J7 9 6 OHMS 4 OHMS TSD GND AC ORANGE BROWN ORANGE ORANGE BLACK ORANGE BROWN BLACK OVER TEMPERATURE THERMOSTAT BLUE R 33 OHMS DEFROST HEATER PINK ORANGE OPEN 95 5 F CLOSE 65 5 F AUGER LINE IN BROWN FZ DOOR SWITCH BROWN BROWN RED FF DOOR SWITCH 1 FF DOOR SWITCH 2 PURPL...

Page 87: ... 16 55 59 61 62 63 64 65 66 71 79 82 85 Evaporator Fan 11 55 61 62 F Feeler Arm 33 36 Fill Cup 33 Fill Tube 11 37 71 G Gasket 23 33 34 53 H Handles 22 Hinge 12 17 18 19 25 38 39 40 Hinge Bushing 39 40 Humidity Sensor Board 17 20 I Ice Bucket 34 Ice Funnel 28 Icemaker 11 32 33 35 36 37 43 62 63 Isolation Valve 11 37 72 73 L Lokring 81 82 83 M Main Board 20 21 25 29 30 32 36 37 46 47 49 58 61 63 64 ...

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