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GE GBSC0 Technical Service Manual

20-, 22- and 23-cu. ft. bottom mount refrigerators
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GE Consumer & Industrial
Technical Service Guide
December 2008
20-, 22- and 23-cu. ft.
Bottom Mount Refrigerators
GFSF2
GBSC0
GFSL2
GBSC3
GFSS2
GDSC0
PDSF0
GDSC3
PFSF2
GDSL0
PDSS0
GDSL3
PFSS2
GDSS0
31-9179
9179
GE Appliances
General Electric Company
Louisville, Kentucky 40225

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  Summary of Contents for GE GBSC0

  • Page 1 GE Consumer & Industrial Technical Service Guide December 2008 20-, 22- and 23-cu. ft. Bottom Mount Refrigerators GFSF2 GBSC0 GFSL2 GBSC3 GFSS2 GDSC0 PDSF0 GDSC3 PFSF2 GDSL0 PDSS0 GDSL3 PFSS2 GDSS0 31-9179 9179 GE Appliances General Electric Company Louisville, Kentucky 40225...
  • Page 2 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 Consumer & Industrial Technical Service Guide Copyright © 2008 All rights reserved.
  • Page 3: Table Of Contents

    Table of Contents Air Control (Model GBSC0) ............................44 Airfl ow ....................................29 Articulating Door Mullion (French Door Models) .....................51 Components ..................................32 Components Locator Views ............................25 Condenser Fan ................................40 Control Board Connector Locator .........................27 Control Diagnostics Using the Temperature Display ..................53 Control Features ................................17 Control Housing (Model GBSC0) ..........................44...
  • Page 4: Introduction

    Introduction These new 20- and 22-cubic foot bottom mount refrigerators have the following features: • TurboCool ― Rapidly cools the refrigerator compartment in order to more quickly cool foods. (on some models) • Automatic Icemaker ― Produces 100 to 130 cubes in a 24-hour period. (on some models) •...
  • Page 5: Nomenclature

    G B S C 0 H B X A R W W Exterior Color Brand/Product WW - White on White, BB - Black G - GE CC - Bisque, SS - Stainless Steel Confi guration LS - Clean Steel B - Bottom Freezer w/ FZ Door...
  • Page 6: Technical Data

    Technical Data All Except Models GBSC0 and GBSC3 (Continued next page) – 6 –...
  • Page 7 Model GBSC0 and GBSC3 – 7 –...
  • Page 8: Installation

    Installation Remove the tape and tilt the door away from Reversing the Door Swing (Single Door Models) the cabinet. Lift the door off the center hinge pin. Ensure that the plastic hinge pin thimble Important: Once you begin, do not move the remains on the hinge pin or inside door hinge cabinet.
  • Page 9 To install the center hinge pin: Remove the button plug from the left side of the door. Remove the door thimble from the right (Models without freezer door) side of the door. Install the door thimble into the Install the hinge pin into the new hinge bracket. hole on the left and the button plug into the hole on the right.
  • Page 10 To install the bottom hinge and leveling leg: To transfer the refrigerator and freezer door (Models with freezer door) stops: Using a 1/2-in. socket ratchet/driver, install the Remove the door stop (A) on right side of the hinge pin and nut in the opposite hole on the bottom of the door by removing the two screws.
  • Page 11 Make sure the gasket on the door is fl ush Straighten the door and line it up with the center against the cabinet and is not folded. Support hinge bracket. Install the center hinge pin with the door on the handle side and make sure the a 3/4-in.
  • Page 12 Remove the hinge cover on top of the Removing the Doors (French Door Models) refrigerator door by removing the Phillips head screw and pulling it up. Important: Once you begin, do not move the cabinet. Using a 5/16-in. socket ratchet/driver, remove the bolts securing the top hinge to the cabinet.
  • Page 13 To replace the top door: 6. Make sure the gasket on the door is fl ush against the cabinet and is not folded. Make sure Install the center hinge on each side. the door is straight and the gap between the doors is even across the front.
  • Page 14: Removing The Freezer Drawer

    To replace the freezer drawer: Removing the Freezer Drawer Note: Two people may be required to complete this To remove the freezer drawer: procedure. Open the freezer drawer until it stops. Lift up on Pull out the rail assemblies to their full length on the back of the basket and lift the basket out of each side of the cabinet.
  • Page 15: Refrigerator Door Handle

    To remove a plastic door handle (on some Refrigerator Door Handle models): Follow instructions below to remove stainless steel Note: Each plastic door handle is attached with an handles and to remove and reverse plastic handles. upper and lower fastener and locked in position by a recessed tab.
  • Page 16: Freezer Door Or Drawer Handle

    To attach a plastic door handle (on some Freezer Door or Drawer Handle models): To remove a freezer door or drawer handle Attach the handle to the handle mounting (stainless steel and plastic): fasteners by aligning the slots with the handle mounting fasteners.
  • Page 17: Control Features

    Control Features (on some models) (on some models) Note: The refrigerator is shipped with protective fi lm covering the temperature controls. If this fi lm was not removed during installation, remove it now. The temperature controls are preset in the factory at 37°F for the refrigerator compartment and 0°F for the freezer compartment.
  • Page 18: How It Works

    How it Works TurboCool rapidly cools the refrigerator How to Use compartment in order to more quickly Press TurboCool. The refrigerator cool foods. Use TurboCool when adding a temperature display will show large amount of food to the refrigerator After TurboCool is complete, the compartment, putting away foods after they refrigerator compartment will return have been sitting out at room temperature or...
  • Page 19: Water Filter Cartridge

    United States, visit our Website, display. This light will turn orange to tell you ge.com, or call GE Parts and Accessories, that you need to replace the filter soon. The 800.626.2002.
  • Page 20 Not all features are on all models. Fruit and Vegetable Crisper Excess water that may accumulate in the bottom of the drawers or under the drawers should be wiped dry. Adjustable Humidity Crisper (on some models) Slide the control all the way to the Slide the control all the way to the LOW HIGH setting to provide high humidity setting to provide lower humidity levels...
  • Page 21: Freezer Shelves And Baskets

    Not all features are on all models. Freezer Shelves and Baskets NOTE: Do not fill baskets higher than the rim A shelf above the ice storage bin of the basket. This may cause baskets to stick A half-width basket or jam when opening or closing. A shallow full-width basket A deep full-width basket Appearance and features may vary...
  • Page 22: Icemaker Accessory Kit

    A newly installed refrigerator may take 12 to 24 hours to begin making ice. Automatic Icemaker (on some models) Power Switch The icemaker will produce seven cubes per cycle— You will hear a buzzing sound each time Icemaker approximately 100–130 cubes in a 24-hour period, the icemaker fills with water.
  • Page 23: Freezer Light

    To remove the light shield, grasp the NOTE: Appliance bulbs may be ordered from shield at the back and pull out to release GE Parts and Accessories, 800.626.2002. the tabs at the back. Rotate the shield down and then forward to release the tabs at the front of the shield.
  • Page 24: Defrost Cycle

    LOCK LED accompanied by an audible tone. All models except GBSC0 and GBSC3: The refrigerator utilizes an adaptive defrost cycle that operates a glass enclosed heater to remove frost from the evaporator. The control...
  • Page 25: Components Locator Views

    One of 2 Thermistor Location different control panels is used for the GE models and a third type of control panel is used for the non- dispenser Profi le models. GE models other than GBSC...
  • Page 26 Freezer Compartment (model PFSF2 shown) Over Temperature Thermostat Icemaker Fill Tube Evaporator Thermistor Light Switch Evaporator Thermistor Location Defrost Heater (recessed in bottom of evaporator) Rear View (model PFSF2 shown) Main Control Board Dryer Condenser Water Valve Condenser Fan Compressor –...
  • Page 27: Control Board Connector Locator

    Control Board Connector Locator Main Control Board (model PFSF2 shown) J10 and J13 - Earth (Ground) J4 - LCD Board J8 - Line (L1) to AC Compressor J3 - Damper J1 - Fresh Food Thermistor, Freezer Thermistor J9 - Defrost Heater, Return Duct Heaters, Over Freezer Evaporator Thermistor Temperature Thermostat J2 - Evaporator Fan, Condenser Fan...
  • Page 28 Main Control Board (models GBSC0 and GBSC3 shown) CON2 CON3 CON1 CON3-1 CON3-3 CON3-5 CON3-4 CON1 and CON2 - Thermistor CON3 - CON3-1 Neutral CON3-3 EMI Filter, Refrigerator Compartment Light, Freezer Compartment Light, Icemaker CON3-4 Defrost Heater, Return Duct Heaters CON3-5 Compressor, Condenser Fan, Evaporator Fan –...
  • Page 29: Airfl Ow

    Airfl ow Model PFSF2 The evaporator fan forces air through the evaporator into the freezer compartment. Air from the evaporator can also pass through the electronic damper to the air tunnel outlet, through the fresh food compartment, and return to the evaporator. The damper is controlled by the main control board.
  • Page 30: Refrigeration Components

    Refrigeration System Refrigeration Components Capillary Tube Evaporator Condenser Loop *Dryer Compressor Condenser * The dryer (not shown), is vertically positioned between the compressor and the condenser fan motor. – 30 –...
  • Page 31: Replacing Evaporator Using The Brazing Method

    Install the new evaporator and tighten the 2 Replacing Evaporator Using the Brazing Phillips-head screws. Method Connect the evaporator inlet and outlet to the Parts Needed: suction line and capillary tubes. • Freezer Evaporator Check that the thermal paste is still on the •...
  • Page 32: Components

    Components b. Release the front of the vertical divider by Icemaker pressing down on the support rail while pressuring the front of the divider up. The following components must be removed in the appropriate order to remove the icemaker: Unplug the refrigerator. Open the freezer door or remove the freezer Vertical Divider drawer.
  • Page 33: Evaporator

    5. Remove the Phillips-head screw and the ice Evaporator drawer cover from the evaporator cover (model PFSF2). The following components must be removed in the appropriate order to access the evaporator: Remove the icemaker, if equipped. (See Icemaker Ice Drawer Cover Note: The evaporator fan cover is attached to the evaporator cover with a hex-head screw and 4 tabs that engage slots in the evaporator cover.
  • Page 34 6. Using a 3/16-in. fl at blade screwdriver, remove 9. Remove the fi ve recessed 1/4-in. hex-head the 1/4-in. slotted hex-head screw from the screws that attach each drawer rail assembly to recess in either wheel sprocket arm. (Left wheel the freezer side walls.
  • Page 35: Evacuation And Charging Procedure

    4. Open the ball valve. Recover the purge/sweep Evacuation and Charging Procedure charge using the recovery pump and the refrigerator compressor until a 20-in. vacuum Refer to Service Guide #31-9118 for complete is attained. Close the ball valve and remove the instructions on replacing the freezer and fresh food recovery hose.
  • Page 36: Defrost Heater

    During defrost, the drain probe assists in (model PFSF2), or the defrost thermostat (model preventing the drain from icing closed. During GBSC0). The 2 duct heaters are energized (along assembly, the probe must be installed on the with the defrost heater), during the defrost cycle...
  • Page 37: Defrost Thermostat

    Defrost Thermostat Thermistors The defrost thermostat will open its contacts and de-energize the heater whenever the evaporator Thermistor Resistance temperature reaches approximately 55°F. The Temperature Temperature Resistance in Kilo- thermostat contacts will close at approximately (°F) (°C) Ohms 32°F. The thermostat is attached to the evaporator 166.8K Ω...
  • Page 38 RTV102 Evaporator Thermistor Fresh Food Thermistor Model GBSC0 The fresh food thermistor is located in the control housing in the fresh food compartment. It is necessary to remove the control housing to access the fresh food thermistor.
  • Page 39: Evaporator Fan

    11/32-in. nut. To access the freezer light thermostat (models Blade tip 1.0" ± 0.05 Target GBSC0 and PFSF2), and fresh food light thermostat Orifice Air Flow (model PFSF2), it is necessary to remove the light Motor cover and light housing.
  • Page 40: Condenser Fan

    Fan speed is selected and maintained by the main Condenser Fan control board regulating the length and frequency of the 13.6 VDC pulse. Temperature can cause The fan is mounted in the machine compartment some fan speed variation. Fan speed can vary +/- with the no-clean condenser.
  • Page 41 The rear access cover must be tightly fi tted to When operating, voltage is sent in pulses (much like prevent air from being exhausted directly out of the a duty cycle) as opposed to an uninterrupted fl ow. rear of the machine compartment, bypassing the This pulsing of 13.6 VDC produces effective voltage compressor.
  • Page 42: Damper Duct Assembly

    3. Tilt the damper assembly toward the front of the Damper Duct Assembly refrigerator, then pull up the damper assembly. Model PFSF2 A motorized damper duct assembly is used to control airfl ow from the freezer into the fresh food compartment.
  • Page 43 Motorized Damper Open Model GBSC0 A non-motorized damper duct assembly is used to deliver airfl ow from the freezer into the control housing. It is located on the back wall of the fresh food compartment, behind the fruit and vegetable crisper drawers.
  • Page 44: Air Control (Model Gbsc0)

    Control Housing (Model GBSC0) Air Control (Model GBSC0) The control housing is located at the top of the An air control is used to direct airfl ow to the refrigerator compartment. (See refrigerator and freezer compartments. It consists of Component Locator The control housing contains the main a damper and damper shaft.
  • Page 45 3. Compress the tabs on the bar clip that holds the 5. Pull back and remove the damper and damper damper shaft to the shaft retainer. Slide the bar shaft from the housing. clip toward the outside of the housing. Damper Bar Clip Shaft Retainer...
  • Page 46: Main Control Board

    4 compression tabs. To access the board, it is necessary to remove the nine 1/4-in Phillips-head screws and the cover from the recess. Model GBSC0 The main control board is located inside the control housing, (See ) The board Component Locator Views.
  • Page 47: Water Valve

    The door dispenser supply line is routed from Water Valve the cold water tank, through the liner, to the left side door hinge, and into the left side door to the The water valve is mounted in the left section of the dispenser.
  • Page 48: Water Tank

    Note: When installing the water tank, push the Water Tank outlet tube fi rmly into the union connector. Make sure that the black mark is fl ush with the top of the The water tank is located in the refrigerator collar.
  • Page 49: Water Dispenser And Interface

    Note: When installing the water tank inlet tube, push Water Dispenser and Interface the inlet tube fi rmly into the water valve. Make sure that the black mark on the tube is fl ush with the The water dispenser assembly incorporates the bottom of the collar.
  • Page 50 Carefully lower the interface and disconnect the 4. Remove the 4 Phillips-head screws and the 2 wire harnesses. dispenser shield from the dispenser recess. 5. Lift and remove the spill shelf from the bottom of the recess. Note: The dispenser trim is held to the dispenser Wire Harnesses recess by 5 retaining tabs along each side and 2 at the top.
  • Page 51: Articulating Door Mullion (French Door Models)

    The articulating door mullion consists of the mullion, Articulating Door Mullion (French Door heater, internal spring, and 2 hinges. It is available Models) only as an assembly. The articulating door mullion is attached to the Note: If the Energy Saver light is lit, then the heaters left side door, and provides a movable center in the vertical and horizontal mullions are disabled.
  • Page 52: Drawer Closure Mechanisms

    Drawer Closure Mechanisms EMI Filter (Model GBSC0) Two self-closing freezer drawer cam and lever The EMI Filter is accessed from the back of the mechanisms automatically pull the drawer shut refrigerator and is located on the left side of the when it's within 1-inch of the closed position.
  • Page 53: Control Diagnostics Using The Temperature Display

    Troubleshooting Control Diagnostics Using the Temperature Display The temperature display has a self-diagnosis mode that can be accessed and will help the technician to test certain functions of the temperature display, defrost heater, damper, and interior fans. This mode can aid the service technician in quickly identifying failed or improper operation of certain components and systems.
  • Page 54 Mode Comments Display Display Open Damper Damper will open, pause briefl y, and then close. Fan Speed Test Cycles through each fan for 5 seconds. 100% Run Time This mode runs the sealed system 100% of the time. This test will automatically time out after 1 hour of run time.
  • Page 55: Performance Data Sheet

    Performance Data Sheet SmartWater Filtration System - GSWF Cartridge This system has been tested according to NSF/ANSI 42/53 for reduction of the substances listed below. The concentration of the indicated substances in water entering the system was reduced to a concentration less than or equal to the permissible limit for water leaving the system, as specified in NSF/ANSI 42/53.* (100% safety factors built in for unmetered usage) Standard No.
  • Page 56: Icemaker Service Test Mode

    Icemaker Service Test Mode The electronic icemaker has a service test mode that can be utilized by the service technician in order to test basic operation of the icemaker. The service test mode consists of a harvest cycle followed immediately by a water fi...
  • Page 57: Schematic

    Schematic Model PFSF2 (Continued next page) – 57 –...
  • Page 58 Model GBSC0 – 58 –...
  • Page 59: Warranty

    This warranty is extended to the original purchaser and any succeeding owner for products purchased for home use within the USA. If the product is located in an area where service by a GE Authorized Servicer is not available, you may be responsible for a trip charge or you may be required to bring the product to an Authorized GE Service location for service.
  • Page 60 (From Date of Sale) Repair or Replace at Mabe’s Option Compressor GE Profile: Ten (10) Years GE Profile: Ten (10) Years GE Profile: Five (5) Years GE and All Other GE and All Other GE and All Other Brands: One (1) Year...