Frigidaire FFHB2740PP Wiring diagram
Contents
1. _ q IM FAN PIN 2 eH g gt RED DK BLU RH3 MOTOR 1 PIN 1 12V DC SPLICE LT BLU WHT MOTOR REVERSIBLE 12V DC owe BAIL ARM SWITCH FLIP MULLION COVER YEL RED RIGHT HINGE GRN YEL LT BLU TRAY a LT BLU SENSOR MAIN INLET WATER VALVE LINE 12V DC NEUTRAL YEL PNK 12V DC FREEZER THERMAL YEL PNK 4 EVAPORATOR CUT OUT FREEZER DOOR YEL WHT HEATER SWITCH EVAPORATOR RED WHT DOOR OPEN FAN DC 12V DC FREEZER BRN WHT GND pees ji ji YEL BLU MAKER DIAGRAM ERF2500 ISO RED gt RED BLK REFRIGERATOR COMPRESSOR CONTROL SIGNAL CONTROL G 2 12V DC GROUND BEHIND FRONT LEFT ROLLER CABINET 0 AUGER MOTOR RED YEL WRAPPER ICEMAKER RED YEL EVAPORATOR DEFROST oe BLU WHT BLUAVHT CUBE CRUSH SPLICE PIN 4 SOLENOID IM1 RH1 AUGER YEL BLK COM YEL GRY YEL GRY N C EW PIN 5 11 1 PURPLE MOTOR PUR BLK N O evry BOARD VIEW PIN 8 DOOR OPEN PURPLE COM 5V DC PURPLE CON eta PUR BLK PURPLE YEL BLK COM BOARD MOUNTED PIN4 SWITCH YEL GRY N C lt AMBIENT THERMISTOR RH1 DOOR OPEN SWITCH pURPLE WO _ 57 J8 YEL BLK COM N DOOR OPEN PURPLE COM 5V DC 2 4 MB1 PURPLE RH LIGHT 1 0 FREEZER DOOR XEL PNK pina EWEN PUR BLK N O SWITCH l oTo SWITCH 4 uen _ J5 E oor OPen2. YEL BLK COM 812 DOOR OPEN PBLK ORN EINS 8 BLK INLINE CONNECTOR ABBREVIATION KEY EXPLANATION 9 PIN CONNECTION AT AIR TOWER 9 PIN CONNECTION IN FRESH FOOD ICEMAKER COMPARTMENT 6 PIN CONNECTION IN FRESH FOOD ICEMAKER COMPARTMENT 6 PIN CONNECTION AT THE LEFT DOOR UPPER HINGE 5 PIN CONNECTION AT THE LEFT DOOR UPPER HINGE 9 PIN CONNECTION IN THE MAIN BACK VIEW MB1 BOARD HOUSING BEHIND THE TOE GRILLE 4 PIN CONNECTION IN THE MAIN BOARD HOUSING BEHIND THE TOE gt 2 w 59 1 FRONT INSIDE VIEW LH1 20 AT1 1M1 amp LH1 LH2 amp RH2 RH3 ih 9 3 z CATCH 1 1 1 RL5 1 RL3 0 LH2 5 2 E GRILLE MB2 9 PIN CONNECTION IN THE 4 2 3 MACHINE COMPARTMENT TO THE 4 4 2 LEFT OF THE COMPRESSOR mm 8 PIN CONNECTION IN THE 000 2 COMPARTMENT THE 1 3 3 1 1 LEFT OF THE COMPRESSOR 9 PIN CONNECTION AT THE RIGHT DOOR UPPER HINGE 5 CONNECTION AT THE RIGHT DOOR UPPER HINGE 2 CONNECTION AT THE RIGHT DOOR UPPER HINGE Wire Diag ram 01830901 RH1 RH2 RH3
3. RH is displayed when humidity is between Lo and HI values heater could be on or off Humidity Sensor Activates automatically wow AC Heater System test not available Dispenser Press set Pocket Heater DC Heater System heater on when on off when off 2 Freezer Defrost Press set Freezer defrost heater on when on off when off Heater 3 FF Light Press set FF lights on when on off when off Incandescent Models Press set Be prepared to collect water at dispenser Water dispenses when on stops when off 9 FZ Light Press set FZ lights on when on off when off Incandescent Models 10 Auger Motor Press set FF door must be closed Motor running when on motor stopped when off 11 Cube Crush Press set Solenoid 12 43 47 FF doors must be closed Water Valve Dispenser FF door must be closed Do not leave solenoid in activated state Solenoid activated when on deactivated when off VCC Condenser Fan Fan running when on stopped when off Anticondensation Flip mullion heater and dispenser pocket heater on when on Press set Heater off when off Compressor running when on stopped when off FF lights on when off when off Stopped when off Listen for speed change from LO to HI FZ lights on when on off when off
4. With inspection mirror observe damper open when OP closed when CL CL on UI when door closed OP when open CL on UI when door closed OP when open 26 Ice Maker Activates automatically Relay is activated automatically If CL is shown defrost limit switch is Defrost Heater closed and heater should be heating up If OP is shown defrost limit switch is open and heater will not activate FF Thermistor FZ Thermistor 33 Ambient Thermistor 39 Main Board 45 Activates automatically UI shows temperature sensed by FF thermistor pass if within 10 F of temperature measured with gauge at FF thermistor location OP if open SH if short Activates automatically UI shows temperature sensed by FZ thermistor pass if within 10 F of temperature measured with gauge at FZ thermistor location OP if open SH if short Activates automatically UI shows temperature sensed at main board pass if within 20 F 10 F of temperature measured with gauge at main board location OP if open SH if short UI shows temperature sensed at UI pass if within 20 F 10 F of tem perature measured with gauge at UI location OP if open SH if short Ambient Activates automatically Thermistor UI Evaporator Activates automatically Thermistor UI shows temperature sensed by evaporator thermistor pass if within 10 F of temperature measur
5. PERFORMANCE DATA NO LOAD amp NO DOOR OPENINGS AT 37 0 CONTROL SETTING Type A with Run Start Capacitor 65 F 18 C Ambient 90 F 32 C Ambient Operating Time 90 to 100 100 5 to 2 F 20 to 17 C 1 to 3 F 18 to 16 C Freezer Temperature Refrigerator Temperature 34 to 39 F 1 to 4 C 34 to 39 F 1 to 4 C last 1 3 cycle 586 to 724 kPa 827 to 931 kPa Base Voltage 115 vac 127 vac max DEFROST SPECIFICATIONS Thermal Cutout Defrost Thermistor Termination 110 F 135 F 500 26 5 39 F 43 3 C 57 2 C 4 C Cabinet Size 27 amp 28 50 22 CD Electronic Timer ADC Defrost 24 minutes every 6 96 hours of compressor run time CONDENSER FAN MOTOR 1100 CW Opposite Shaft FREEZER ICE MAKER SPECIFICATIONS 115 vac 127 vac max 0 03 Running Opens at 48 F 9 C Closes at 15 F 9 C 115 vac rm j BRN 31 O_O G THERMAL mm Cis CUT OUT yo gt x RED o a HOLD LT BLUE lt F _______ Ei P 4 IPE Q KID eji RDS O i MOLD HEATER lt 165 WATTS SHUIOR i m O 1 SWITCH YEL A E eae tree re Ba W YELLOW 2 MOLD MOUNTING WATER FILL PLATE SWITCH CAUTION All electrical parts and wiring must be shielded from torch flame DO NOT allow torch to t
6. ed with gauge at evaporator thermistor location OP if open SH if short Ice Maker Mold Thermistor Activates automatically UI shows temperature sensed at ice maker pass if within 20 F 10 F of temperature measured with gauge at ice maker mold OP if open SH if short Main Board Firmware Displays digit sequence record IMPORTANT SAFETY NOTE The information provided herein is designed to assist qualified repair personnel only Untrained persons should not attempt to make repairs due to the possibility of electrical shock Disconnect power cord before servicing this appliance IMPORTANT If any green grounding wires are removed during servicing they must be returned to their original position and properly secured POWER CORD NON RIBBED LINE RIBBED NEUTRAL USER INTERFACE GND BASE PLATE FLAPPER GROUND 12V DC os gt 5 navo 4 33 12V DC DISPENSER Ea DC SIDE AC SIDE COMPRESSOR LT BLU REVERSIBLE ro FLAPPER re 12V S l seuce_ COMM NEUTRAL CAB GROUND J1 GRN YEL 12V DC LINE a LT BLU VARIABLE SPEED CONTROL SIGNAL COMPRESSOR INV RED BLK BLK WHT C BASE PLATE GRounD GRN YEL RIGHT DOOR FLANGE I gt GRY YEL FREEZER 2 SENSOR GRY WHT SENSOR 1 GRY WHT AT1 MB1 FRESH FOOD 2 PIN 4 pe a 1 i 1
7. il another test is selected Remove ice bucket FZ display shows 1 and GOOD Variable Capacity Compressor VCC Diagnostics select models If test 38 fails diagnose as follows gt Check at the connector from the power cord harness into the inverter board located in the machine compartment PUR and WHT wires Is Inverter Board receiving 115 VAC from power supply gt Check connections from Inverter Board to Compressor gt Remove inverter box from the compressor and check resistance across compressor winding pairs as gt Check at Inverter Board on Compressor BLK and RED wires yes yes connections from Inverter Is Inverter Board receiving 10 15 2 Board to Compressor intact VAC and 1 5 VDC from Main Is resistance across all winding Control Board pairs equal Check voltage supply Check and repa cord harness wi connections Water Fill Adjustment Motor Gear Mounting Plate Screw p Identify and repair damaged wires or poor connections between Inverter Board and Compressor Replace Compressor and Inverter Board ir power ring and gt Check at Main Control Board BLK WHT and RED BLK wires no Is Main Control Board sending gt Replace Main Control Board 10 15 VAC and 1 5 VDC to Inverter Board yes Identify and repair damaged wires or poor c
8. onnections between Main Control Board and Inverter Board Replace Inverter Board VCC Resistance Check Check resistance between terminals 1 and 2 2 and 3 3 and 1 If all resistances are equal compressor is operative Tm iy Mounting a Plate 2 lt Screws Tes t Test 1to2 3101 Timing Gear SYSTEM DIAGNOSTIC MODE Press A and V for up to 10 sec simultaneously Press to advance through tests Press for up to 10 sec Diagnostic Mode will automatically deactivate after 5 min of inactivity Note Silence alarm e Tests marked with may not be applicable to this unit and will not be displayed in System Diagnostic Mode e Tests displayed in diagnostic mode but not described below are for internal purposes only advance through e View UI display for on off CL OP SH LO HI or numerical results of tests e Listen for operating sounds feel for heat or air flow as appropriate to determine results of tests To activate test Passing result First Sereen AILED lights on UI illuminated Second Sacer S Al segments on UT temperature displays masen Bonk no ightsiluminateds 28 Dispenser Paddle on on UI when depressed off when released 46 OP if open SH if short AC Heater System Displays RH DC Heater System HI heater should be on Lo heater should be off
9. ouch insulation it will char at 200 F and flash ignite burn at 500 F Excessive heat will distort the plastic liner FREEZER ICE MAKER INFORMATION Where Applicable Test Cycling Remove cover by inserting screwdriver in notch at bottom and prying cover from hous ing Use screwdriver to rotate motor gear counterclockwise until holding switch circuit is completed All components of ice maker should function to complete the cycle Water Fill Volume The water fill adjustment screw will change the fill time One full turn is equal to 20cc 68 oz The correct fill is 102 to 130cc 3 4 to 4 3 02 When a water valve is replaced the fill volume must be checked SERVICE DATA SHEET A01870701 ICE amp WATER AUTOMATIC DEFROST BOTTOM FREEZER R134a IMPORTANT PLEASE RETURN THIS SHEET TO ITS ORIGINAL LOCATION ERROR CODES Display SPECIAL MODES Display Mode FZ F Open FF Thermistor Manual Defrost F Open FZ Thermistor Display Showroom 77 77 SH Shorted FF Thermistor Sabbath Sb Sb Activate Deactivate Interpretation press for up to 10 sec simultaneously and same to deactivate A and Power on Reset POR and same to deactivate A and V to deactivate A and together to activate press and hold to deactivate Notes e Always check for pin back outs pinched or damaged wires before replacing components e Determine whether failure is caused by the component main con
10. trol board or wiring Contact TID before replacing main control board e Refer to Service Manual for additional information Numerical display of Board communication first test failure on start up UI to Main Control SY CE in operation Evaporator Fan Failure FRESH FOOD ICE MAKER DIAGNOSTIC MODE Shorted FZ Thermistor System Diagnostic No FF or FZ display SH Board communication Press A and temperature pads for up to 10 sec simultaneously all UI LEDs on UI to Main Control FFIM Diagnostic SY CF error after a period Press or to move forward or backward through tests Deactivate Press for up to 10 sec FFIM Diagnostic Mode will automatically deactivate after 5 min of inactivity NOTE Silence alarm To activate test Passing Result 52C Ice Maker Thermistor Activates FZ display shows temperature sensed by Ice Maker Thermistor automatically OP if open SH if short 55C Water Valve Press Set Remove ice tray to collect water into a measuring container to measure water fill If collecting water into ice tray first perform test 63C to empty ice tray Evaporator Fan FFIM On on FZ display when fan activated OFF when deactivated Ice Level Sensor Activates Remove ice bucket automatically Allow bail arm to drop freely Pass if no alarm when tray returns to home position Hold bail arm up Pass if alarm sounds when tray returns to home position This test runs continuously unt
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