GE Consumer & Industrial PGCS1NFXSS Technical Service Manual Download | Manualshive

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Refrigeration System

Refrigeration Components

Condenser Loop

Evaporator

Compressor

Condenser

Capillary Tube

*Dryer

* The dryer (not shown), is vertically positioned between the compressor and the condenser fan motor.

Inverter

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Summary of Contents for PGCS1NFXSS

Page 1: ... General Electric Company Louisville Kentucky 40225 31 9166 9166 Profile Bottom Mount Double Drawer Refrigerators Technical Service Guide March 2008 GE Consumer Industrial PGCS1NFXSS PGCS1PJXSS PGSS5NFXSS PGSS5PJXSS ...

Page 2: ... avoid personal injury disconnect power before servicing this product If electrical 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 an...

Page 3: ...ssembly 50 Freezer Drawers 25 Freezer Drawers Mullion Troubleshooting 71 Freezer Fresh Food Mullion Heater 50 Fresh Food and Freezer Light Thermostats 35 Fresh Food Damper 47 Humidity Sensor 48 Ice Level Switch 28 Icemaker 27 Icemaker Fill Tube Heater 45 Icemaker Service Test Mode 72 Introduction 4 Inverter 38 Inverter Compressor 40 Mullion Heaters 48 Nomenclature 6 Precise Fill 53 Precise Fill Tr...

Page 4: ...drawers add convenience by allowing easy access and organization of frozen foods An articulating door mullion attached to the right side door provides a movable center mullion that maximizes access to the fresh food compartment Damper air inlet assembly located in the bottom of the fresh food section creates more usable space on the top shelf Secure Close Door Systems Securely pulls the doors and ...

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Page 6: ...l Voltage Frequency Maximum Amperage Rating Refrigerant Charge and Type Nomenclature P G C S 1 P J X S S Serial Number The first two numbers of the serial number identify the month and year of manufacture Example AR123456S January 2008 A JAN 2008 R D FEB 2007 M F MAR 2006 L G APR 2005 H H MAY 2004 G L JUN 2003 F M JUL 2002 D R AUG 2001 A S SEP 2000 Z T OCT 1999 V V NOV 1998 T Z DEC 1997 S Exterior...

Page 7: ...ature press either the WARMER or COLDER touch pads until the desired temperature is displayed Once the desired temperature has been set the temperature display will return to the actual refrigerator and freezer temperatures after 5 seconds Several adjustments may be required Each time you adjust controls allow 24 hours for the refrigerator to reach the temperature you have set To turn the cooling ...

Page 8: ...rigerator to reach the temperature you have set To change the Refrigerator temperature Access By Home Refrigerator Activate By Using the arrows to select the desired temperature You must press ENTER to set the new temperature Continued next page The home screen is the initial screen presented after power up The status bar at the top displays the status of many of the refrigerator features Freezer ...

Page 9: ...ystem Off to turn off refrigerator Press Reset Water Filter to display percent of filter life expectancy used replacement and order instructions Note If an attempt is made to adjust the freezer set temperature above 7 F 14 C or below 6 F 21 C the or arrow will disappear If ENTER is not pressed the last freezer temperature entered will remain the set temperature shown underneath the actual temperat...

Page 10: ...e will be replaced with TurboCool How it Works 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 exten...

Page 11: ...ng dispensed If you would like to stop dispensing water before the specified amount has been dispensed just remove the cup from the cradle The display will show the amount left to dispense Water Filter Cartridge The water filter cartridge is located in the back upper right corner of the refrigerator compartment When to Replace the Filter On models with controls inside refrigerator there is a repla...

Page 12: ...ling system back on press the touch screen and press the ON button Activate By Pressing ENTER Note Turning the cooling system OFF stops cooling in both the freezer and refrigerator compartments but does not shut off electrical power to the refrigerator When the unit is turned back on it will be set to the standard settings and will take up to 24 hours to stabilize Screen Appearance Access by Home ...

Page 13: ...e Current screen displayed To access Help press the Help pad General Access by Help General Scroll to select help on Refrigerator Freezer Precise Fill Reset Water Filter Settings Cooling System Off Energy Saver TurboCoolTM Door Alarm Status Bar Lock Current Access by Help Current Press Status Bar Freezer Refrigerator Precise Fill or Options to receive help on selected item ...

Page 14: ...er open count begins when a door drawer is opened If 3 minutes elapse before the door drawer is closed the liner protection mode will become active Once the door drawer is closed timer 1 resets and liner protection mode goes into standby In standby normal fan operation resumes and timer 2 begins a 3 minute door drawer closed count If 3 minutes elapse without a door drawer opening liner protection ...

Page 15: ... EXTERNAL DISPENSERS Energy Saver LED When any refrigerator door freezer drawer is left open the LCD screen presents information that allows the consumer to silence the alarm without closing the door drawer After pressing SILENCE ALARM the beeping will stop and the door alarm LED will continue blinking until the door drawer is closed If the door drawer is left open after silencing the alarm period...

Page 16: ...reen Colors Temperature Set TurboCoolTM Energy Saver and Door Alarm DEMO SCREEN allows consumer to select and change compartment temperatures and operate Precise Fill while in the DEMO MODE An OPTIONS setting will display Settings Water Filter Reset and Cooling System Off To exit the DEMO MODE press the HOME and HELP pads simultaneously for 3 seconds Upon exiting the cooling system will turn on an...

Page 17: ... fuse Note Determine and correct the cause of fuse failure when replacing the 3 amp fuse part WR55X10766 The replacement transformer assembly is supplied as a complete unit The bracket transformer and circuit board cannot be ordered separately On later production models the fuse is eliminated in the LED transformer assembly Fuse Transformer Assembly Removed Bracket Refrigerator Lights Incandescent...

Page 18: ...illips head screw and the cover from the top of the hinge closure assembly Continued next page Fuse Transformer Circuit Board Transformer Assembly Components The transformer assembly converts 120 VAC to approximately 36 VDC to power the LED lights The transformer primary winding has an approximate resistance value of 9 9 Ω The secondary winding has an approximate resistance value of 9 Ω To remove ...

Page 19: ...he lever interacts with the cam to complete the closing of the drawer A pair of pliers can be used to remove the spring from the hook The spring and lever can then be pulled out through the hole in the base channel Door Alignment If the top of the doors are uneven first try to raise the lowest door by turning the leveling leg on the same side as the door until the doors are even If the unit rocks ...

Page 20: ... in line with the desired location of the RH side of the refrigerator see Figure 1 Place the anti tip floor bracket onto the locator template with its RH floor holes lined up with the floor holes indicated on the template sheet approximately 71 4 from the edge of the sheet or the RH side of the refrigerator Hold down in position and use the anti tip floor bracket as a template for marking the hole...

Page 21: ... locator template from the floor Mount the anti tip floor bracket by fastening the 2 or preferably 4 10 16 hex head screws tightly into place as illustrated in Figure 3 3 A POSITIONING THE REFRIGERATOR TO ENGAGE THE ANTI TIP FLOOR AND BASE BRACKETS Before pushing the refrigerator into the opening plug the power cord into the receptacle and connect waterline if equipped Check for leaks Locate the r...

Page 22: ...he red plastic locking clip down and off 6 Carefully push the red collar in while pulling the water line out from the coupling Collar Water Line Replacement collar unavailable Refrigerator Doors Refrigerator Door Handle Removal Note Each refrigerator door handle is held in place by an upper and lower fastener and locked in position by 2 recessed 3 32 in Allen screws Each fastener is located behind...

Page 23: ...oving the Phillips head screws and pulling it up 9 Using a 5 16 in socket ratchet driver remove the bolts securing the top hinge to the cabinet Then lift the hinge straight up to free the hinge pin from the socket in the top of the door 10 Remove the tape and tilt the door away from the cabinet Lift the door off the center hinge pin Note Ensure that the plastic hinge pin thimble remains on the hin...

Page 24: ...bracket first Then rotate the front edge of the basket up while lifting the remaining two rear alignment tabs out of the slide bracket Make sure the plastic sleeves remain attached to the 4 slots on the slide brackets When replacing the full width basket Tilt the basket back and lower it down into the drawer Rotate the basket to a horizontal position and press it down into the 4 alignment tabs NOT...

Page 25: ...of the customer Both the right and left side of the drawer front can be adjusted independently To adjust the upper drawer front vertically Remove the full width basket See 1 Freezer Basket Removal Remove the pilot screw on the side of the 2 drawer front that needs to be adjusted Do one side at a time if both need adjustment 3 Loosen the remaining three 10 mm hex head screws on the side that needs ...

Page 26: ...left side of the drawer front can be adjusted independently To adjust the lower drawer front vertically Remove the upper and lower full width baskets 1 See Freezer Basket Removal Loosen Remove Left Side Bracket Shown 2 Remove the pilot screw center screw on the side of the drawer front that needs to be adjusted Do one side at a time if both need adjustment 3 Loosen the remaining four 10 mm hex hea...

Page 27: ...er NOTE In homes with lower than average water pressure you may hear the icemaker cycle multiple times when making one batch of ice NOTE Set the power switch to the O off position if the water supply is shut off A newly installed refrigerator may take 12 to 24 hours to begin making ice Icemaker Feeler Arm Power Switch Green Power Light Accessing Ice and Reaching the Power Switch To reach the icema...

Page 28: ...er now acts as a backup in case the extra ice switch or mechanism fails to disconnect power to the icemaker with a full bucket of ice It is necessary to remove the icemaker cover and the icemaker bucket cover to remove the ice level switch See Evaporator steps 1 12 Ice Level Switch Ice Level Switch Vertical Actuator BIN NOT FULL SWITCH CLOSED POSITION BIN NOT FULL CONDITION BIN FULL SWITCH OPEN PO...

Page 29: ...r Line Coil Water Filter Light Switch Light Switch Damper Lights Thermistor Location Non Dispenser Model Note On non dispenser models the control panel is located in front of the light housing at the top of fresh food compartment Articulating Mullion Track Dispenser Model Lights Control Panel ...

Page 30: ...tor Defrost Heater recessed in bottom of evaporator Rear View Main Control Board Water Valve Drier EMI Filter Condenser Fan Condenser Inverter Light Switch Thermistor Location Compressor Ambient Thermistor Evaporator Thermistor Evaporator Fan Humidity Sensor Location Flowmeter Light Switch ...

Page 31: ...eration System Refrigeration Components Condenser Loop Evaporator Compressor Condenser Capillary Tube Dryer The dryer not shown is vertically positioned between the compressor and the condenser fan motor Inverter ...

Page 32: ...ugh the fresh food compartment and return to the evaporator The damper is controlled by the main control board When open the damper allows the chilled air from the freezer to move into the fresh food compartment Air returns from the fresh food compartment to the freezer compartment via two vents located to the left and right of the electronic damper Return Duct 1 of 2 Return air ducts are located ...

Page 33: ...hose from the R 134a charging cylinder to the process tube port on the compressor 2 Evacuate the system to a minimum 20 in vacuum using the refrigerator compressor and recovery pump which is attached to the new drier assembly 3 Turn off the recovery pump Close the ball valve on the hose connected to the high pressure side port connection Add 3 ounces of R 134a refrigerant to the system Let the ref...

Page 34: ...ts in keeping fresh food temperature at the preset temperature However the compressor does not get enough run time to bring the freezer down to 0 F 18 C Thermistors At lower room temperatures the ambient thermistor alters the main control board s calculations for the target temperature The main control board then runs the compressor at higher speeds to get the freezer as well as the fresh food to ...

Page 35: ...ng The fresh food light housing is held in place by 3 Phillips head screws The freezer light housing is held in place by a single Phillips head screw Note It is necessary to remove the freezer light bulb to access the freezer light housing screw Replacement Should a thermostat require replacement use plastic bell connectors part WR01X10466 Fill each connector with RTV102 silicone then splice a new...

Page 36: ...C 13 6 VDC 13 6 VDC Note Depending on speed the effective voltage may range from 6 5 13 6 VDC Fan speed is selected and maintained by the main control board regulating the length and frequency of the 13 6 VDC pulse Temperature can cause some fan speed variation Fan speed can vary 5 depending on the temperature with higher temperatures causing slightly higher speeds The evaporator fan has a 4 wire ...

Page 37: ...f this condition exists such as during initial startup the condenser fan operates at super high speed while the compressor operates at medium speed Disconnect The condenser fan is mounted with screws to a fan shroud and mounting bracket that is attached to the condenser To access the condenser fan motor disconnect power from the refrigerator and remove the machine compartment cover Use one of the ...

Page 38: ...s sent in pulses much like a duty cycle as opposed to an uninterrupted flow This pulsing of 13 6 VDC produces effective voltage being received at the motor which is equivalent to a reduction in voltage Fan speed is selected and maintained by the main control board regulating the length and frequency of the 13 6 VDC pulse Carefully pull the water valve and the EMI filter 2 out from the cabinet Disc...

Page 39: ... Medium speed 2100 rpm 70 Hz High speed 3120 rpm 104 Hz The inverter receives commands from the main control board The main control board will send a PWM run signal from the J15 connector of 4 6 VDC effective voltage to the inverter all wires must be connected The inverter will select compressor speed voltage output based on this signal The main control board will only send a run signal to the inv...

Page 40: ...tor set point medium speed 5 5 F to 7 F above refrigerator set point high speed Note The compressor will run at medium speed if the freezer temperature is 20 F or more above the setpoint The use of 3 phase power eliminates the need for the relay capacitor and individual start and run windings therefore the start run and common pins found on conventional compressors are not applicable on this 3 pha...

Page 41: ...e the icemaker cover to the right and lower it away from the icemaker 6 Using a small flat blade screwdriver expand the 2 clips and disconnect the ice level switch wire harness from the icemaker harness Continued next page 7 Loosen the two 1 4 in hex head screws then lift and remove the icemaker from the mounting bracket Note The ice bucket cover is held in place with 2 Phillips head screws and a ...

Page 42: ...n opening in the side of the freezer 13 Extend both upper drawer rail assemblies to the open position 14 Remove the four 1 4 in hex head screws from each upper rail assembly Plastic Ties Ice Level Switch 15 Pull the front of the rail assembly towards the center of the freezer and unhook the assembly from the side of the freezer 16 Remove the Phillips head screw and the mullion heater harness cover...

Page 43: ...ide 31 9067 for complete instructions on using the LOKRING method of installing an evaporator Unplug the refrigerator 1 Remove the rear access cover and evacuate the 2 sealed system Remove components necessary to expose the 3 evaporator See Evaporator Note the location of the thermistor and over 4 temperature thermostat on top of the old evaporator and remove Remove heater from bottom of evaporato...

Page 44: ...nstall the rear access cover Replacing Evaporator Using the LOKRING Method Parts Needed Freezer Evaporator Drier Assembly Access Tube part WJ56X61 LOKRING Connectors part WR97X10044 Note If it is determined that the epoxy joints the transition joint between the aluminum and copper jumper on the freezer evaporator assembly are defective then LOKRING connectors can be used to repair the joints Refer...

Page 45: ...etween J9 and J7 9 For a resistance reading other than 2 approximately 27 Ω remove the evaporator cover See Evaporator disconnect the fill tube heater and one lead from the defrost heater Insert a volt ohm meter into the fill tube heater receptacle A reading of approximately 220 Ω indicates both heaters are good Note The return duct heaters are integral to the foamed in place internal ductwork of ...

Page 46: ... of the drawer up and out To replace Make sure all four swing locks are in the unlock position Place the sides of the drawer intothe drawer supports making sure the swing locks fit on the drawer slots Lock all four swing locks by rotating them to the lock position Lower the lidand slide in the drawer Replace the fruit and vegetable drawers How to Remove and Replace the Deli Pan Swing Locks Remove ...

Page 47: ...per drawers The damper assembly consists of a 12 VDC motorized damper sealed inside a styrofoam air tower inlet gasket and a plastic air tower cover The assembly is held in place with one 1 4 in hex head screw at the top and 2 pins at the bottom that fit into the liner To remove the fresh food damper Remove the fruit and vegetable crisper drawers 1 and the crisper drawer cover and frame assembly C...

Page 48: ...supplied to the heaters is increased to keep the mullion surfaces from sweating At lowest humidity the articulating door mullion and freezer fresh food mullion may turn off completely but the freezer face DD mullion heater will always have some voltage present If the energy saver is off all heaters are on When the energy saver is on the articulating door mullion and the freezer fresh food mullion ...

Page 49: ...er The pin on top of the mullion and the track located at the top center front of the refrigerator ensure proper mullion bar alignment upon closure of the right side door Note If the Energy Saver light is on then the articulating door mullion heater is disabled The heater operates on DC voltage when both doors are closed It is necessary to close the left side door and close the right side light sw...

Page 50: ...er is not replaceable Note To test the operation of the mullion heater disconnect the humidity sensor Within the next 20 minutes duty cycle the control will recognize the open humidity sensor the heater will then receive voltage and the mullion will get warm Freezer Double Drawer DD Mullion Assembly The freezer double drawer mullion assembly consists of a mullion heater bonded to a mullion face Th...

Page 51: ... on each 1 tab then pry the bottom of the interface away from the dispenser recess Slot Slot Slot Carefully lower the interface and disconnect the 2 2 wire harnesses Remove the 4 Phillips head screws and the 3 cradle support from the dispenser recess Lift and remove the drip tray 4 Note There are 2 plastic wedges that help hold the top of the trim flush against the door panel If the wedges are not...

Page 52: ...r view Switch EMI Filter The EMI Filter is accessed from the back of the refrigerator and is located on the left side of the compressor To remove the EMI filter Remove the 5 16 in hex head screw that 1 attaches the bracket to the cabinet Pull the bracket out and remove the 1 2 in nut 2 Cut the 2 plastic wire ties that hold the EMI filter 3 to the bracket Mark and disconnect the wires from the EMI ...

Page 53: ...board When the dispenser is activated the flow of water through the meter rotates a paddle The paddle contains a magnet which passes by a sensor within the flowmeter The sensor counts the number of revolutions and sends that information to the main control board For example 1 Cup Nr number of revolutions The main control board cycles the water valve relay based on the information Continued next pa...

Page 54: ... Outlet Tube Flowmeter The flowmeter is located in the machine compartment behind the water valve The water valve must be removed to access the flowmeter Lift and rotate the flowmeter bracket 4 counterclockwise to disengage the 2 tabs at the top of the bracket Carefully pull out the bracket and flowmeter 5 Mark and disconnect the inlet and outlet tubes 6 from the flowmeter connectors Disconnect th...

Page 55: ... press and hold in the HOME TURBO COOL and ENERGY SAVER pads The SELF DIAGNOSIS screen will appear Press SOFTWARE VERSION FACTORY TEST or HMI TEST Select EXIT to exit the self diagnosis mode Self Diagnosis Description SOFTWARE VERSION Verifies using latest main and HMi board software Test EEprom status FACTORY TEST Turns on the freezer fan Calibrate calibrates the touch screen assembly of LCD scre...

Page 56: ...temperature pads The display will show actual temperatures Enter the appropriate display numbers as shown in the table and press any pad other than the temperature pads to activate that test mode Enter the diagnostic mode by pressing both the freezer temperature COLDER and WARMER pads and the refrigerator temperature COLDER and WARMER pads simultaneously All four pads must be held for approximatel...

Page 57: ... Display Fresh Food Display Diagnostics Results Comments 0 7 Control and Sensor System Test Checks each thermistor in order See Note 1 1 0 Damper Test Damper will open for 10 seconds Test will not start for approximately 10 seconds after pad is pressed 1 1 Fan Test Cycles through each fan for 5 seconds 1 2 100 Run Time Sealed system on 100 of the time Times out after 1 hour 1 3 Prechill Test Start...

Page 58: ...test mode Remove fingers within 5 seconds and press any pad to lock in the test mode The blinking 0 s will change over to solid non blinking 0 s when the test mode is locked in Failure to lock in the test mode within 30 seconds will time out the test and return the refrigerator to the normal cooling mode FZ Display FF Display Mode Comments 0 1 Showroom Mode When activated a tone will sound briefly...

Page 59: ... to OFF Standby mode 1 4 Toggle the State of Defrost Each time any button on the temperature board other than four temperature adjust buttons is pressed the status of the FZ defrost heater will toggle See Note 3 1 5 Refrigerator Reset Causes a soft reset to occur at both the Combined HMI and the Main board 1 6 Test Mode Exit Causes a soft reset to occur at the Combined HMI board Note This will not...

Page 60: ...ing Circuits Dispenser Water Valve Dispenser Models Only J12 FF FZ Mullion Heater J18 Icemaker Water Valve Automatic Quick Ice K3 Water K4 Defrost J14 J5 J15 Inverter J14 Flowmeter J2 Fan Common Evaporator Fan Condenser Fan Mullion Bar Heater Model Selector J5 Humidity Sensor J4 Display Board J3 Damper J1 Fresh Food Thermistor Ambient Thermistor Freezer Thermistor Evaporator Thermistor Model Selec...

Page 61: ...n Condenser Fan Fan 12V Inverter Common Inverter Output Icemaker Defrost Heater Line L1 FZ Light Switches FF Light Switches Dispenser Water Valve J8 FF FZ Mullion Heater Articulating Door Mullion Htr Model Selector Not Used Model Selector Model Selector Water Valve Damper Damper Damper Damper NOT USED NOT USED NOT USED Return Duct Heaters Fill Tube Heater 1 5 J14 Flowmeter Flowmeter Humidity Senso...

Page 62: ...eases causing return voltage reduction This value is used to cycle evaporator fan compressor and condenser fan Feedback is filtered to respond to 8 degrees of change per minute J1 4 VDC Feedback of evaporator thermistor value Thermistor value is NTC when temperature drops resistance value increases causing return voltage reduction This thermistor value is used to cycle the defrost heater on during...

Page 63: ...n Effective voltage is determined by pulse width modulation J2 6 VDC Output to articulating door mullion heater Effective voltage is determined by main control board J2 8 VDC Provides 12 VDC supply voltage to all fans constant voltage CONTROL BOARD PIN DEFINITIONS CONNECTOR PIN INPUT OUTPUT FUNCTION J3 1 VDC Damper 6 VDC J3 2 VDC Damper 6 VDC J3 3 VDC Damper 6 VDC J3 4 VDC Damper 6 VDC CONTROL BOA...

Page 64: ...calculations door alarm calculations and adaptive defrost calculations J7 7 VAC Receives L1 input from freezer drawer switches when either drawer is open This input is used for evaporator fan control liner protection mode calculations door alarm calculations adaptive defrost calculations and some door interlock functions J7 9 VAC AC neutral in Continued next page CONTROL BOARD PIN DEFINITIONSS CON...

Page 65: ... input potential for switched L1 terminals CONTROL BOARD PIN DEFINITIONS CONNECTOR PIN INPUT OUTPUT FUNCTION J15 1 VDC Output voltage to the compressor inverter 4 to 6 VDC from J15 pin 1 to J15 pin 2 J15 2 VDC CONTROL BOARD PIN DEFINITIONS CONNECTOR PIN INPUT OUTPUT FUNCTION J12 1 VAC Switched L1 voltage to the FF FZ mullion heater 120 VAC Continued next page CONTROL BOARD PIN DEFINITIONS CONNECTO...

Page 66: ...porator Fan 5 Yellow Condenser fan Output J2 pin 5 to pin 3 12 VDC super high 10 5 VDC high 7 5 VDC med 5 5 VDC low 6 Black White Articulating Door Mullion Heater Output J2 pin 6 to pin 8 0 to 13 6 VDC Voltage varies with room relative humidity ambient temperature and FF FZ control settings 8 Red Fan supply voltage 12 VDC Output J2 pin 8 to pin 3 12 VDC Main Control Board J3 Connector Low Voltage ...

Page 67: ...l Selector Model Selector Low Voltage DC 120 VAC Continued next page Main Control Board J4 Connector Low Voltage DC Side Pin Wire Color Component Termination Input Output Pin to Pin Voltage Reading 1 Black Temperature control Communication 2 way digital communication 2 Red Temperature control Output J4 pin 2 to pin 3 12 VDC 3 Blue Temperature control Common J4 pin 2 to pin 3 12 VDC Main Control Bo...

Page 68: ...zer Drawer Light Switches Input J 7 pin 7 to J7 pin 9 120 VAC Freezer drawer open 9 Orange Neutral Neutral Neutral Continued next page K4 J7 1 EARTH J10 J18 J12 J11 J9 Icemaker Defrost Heater Line L1 FZ Light Switches FF Light Switches Dispenser Water Valve J8 FF FZ Mullion Heater Not Used Water Valve Return Duct Heaters Fill Tube Heater Freezer Drawers Mullion Heater AC Neutral In Low Voltage DC ...

Page 69: ...lion Heater Not Used Water Valve Return Duct Heaters Fill Tube Heater Freezer Drawers Mullion Heater AC Neutral In Low Voltage DC 120 VAC Main Control Board J12 Connector High Voltage Side Pin Wire Color Component Termination Input Output Pin to Pin Voltage Reading J12 White FF FZ Mullion Heater Output J 12 to J7 pin 9 120 VAC Main Control Board J18 Connector High Voltage Side Pin Wire Color Compo...

Page 70: ...eter Check 1 Wiring between flowmeter and J14 on main control board 2 Main control board No Is there 6 5 7 VDC between red and white wires on flowmeter when 1st activated Replace flowmeter Note If no water is flowing through the flowmeter or no communication is occurring between the flowmeter and the main control board the dispenser will display 0 and beep after 2 seconds No Check 1 Wiring between...

Page 71: ...rness 2 Harness connections Is there 120 VAC between J7 5 and J7 9 on the main control board No Replace main control board Ye s 1 Light switches contacts open when drawer closed between orange and red between orange and red wires on the disconnected Check 1 Wiring 2 Harness connections Ye s NOTE 1 Energy Saver mode must be off 2 Humidity sensor disconnected The following conditions must be met bef...

Page 72: ... own and enter the normal freeze cycle Icemaker Feeler Arm Power Switch Green Power Light 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 fill The harvest cycle is entered regardless of icemaker ...

Page 73: ...d at J18 The main board senses the water valve turning on and then runs the evaporator fan for 120 minutes If the water valve cycles again in 120 minutes the timer is reset to count another 120 minutes Otherwise the fan will cycle off and on in a normal mode This logic provides increased ice production ...

Page 74: ...ed purpose or used commercially Loss of food due to spoilage Replacement of house fuses or resetting of circuit breakers Damage caused after delivery Replacement of the water filter cartridge if included due to water pressure that is outside the specified operating range or due to excessive sediment in the water supply Replacement of the light bulbs if included or water filter cartridge if include...

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