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CONTROL SYSTEM

Control Console

The control console, located at the top front of
the fresh food compartment, contains an
encoder (knob version) or a touch panel.

Remove the control console by removing 4 (1/4-
in.) hex head screws. Use care when
disconnecting the wire connectors from the
encoder or touch panel.

Temperature Encoder

The temperature encoder (knob version)
receives switched DC voltage from the main
control board. There are two possible failure
modes - both are open circuits.

An open circuit from the supply side results in
the refrigerator defaulting to midpoint. The
supply side consists of pins 1 and 2.

An open circuit from the return side results in
inconsistent run mode. The return side consists
of pins 3 and 6.

Failure of the fresh-food-only side results in the
fresh food defaulting to midpoint.

Failure of the freezer side results in the freezer
defaulting to midpoint.

Temperature Touch Panel

The temperature touch panel receives switched
DC voltage from the main control board.

Failure of input results in default to most recent
setting. Input consists of pins 2 to 3.

Failure of output results in erratic control.
Output consists of pin 1.

ADJUST REFRIGERATOR TEMP

ADJUST FREEZER TEMP

ACTIVATE LOCK

IS COLDEST

HOLD

3 SECS

COLDER

WARMER

COLDER

WARMER

9 IS COLDEST

ADJUST FREEZER TEMP

ADJUST REFRIGERATOR TEMP

ADJUST FREEZER TEMP

ACTIVATE LOCK

IS COLDEST

HOLD

3 SECS

COLDER

WARMER

COLDER

WARMER

Содержание ETS22

Страница 1: ...9077 05 01 MODEL SERIES TECHNICAL SERVICE GUIDE GE Consumer Home ServicesTraining LTMNF 22 and 25 Cubic Foot GE Hotpoint Profile Arctica Refrigerators with Electronic Controls ETS22 GTS22 HTS22 PTS22 PTS25 STS22 ...

Страница 2: ...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 and prope...

Страница 3: ...aptive Defrost 23 Normal Operating Characteristics 24 Abnormal Operating Characteristics 24 Liner Protection Mode 24 Defrost Heater 25 Evaporator Thermistor 25 Defrost Overtemperature Thermostat 25 Defrost Probes 26 CONTROL SYSTEM 27 Control Console 27 Temperature Encoder 27 Temperature Touch Panel 27 Control Board 28 Thermistors 35 ELECTRICAL SYSTEM 36 Door Switches 36 Schematic 36 Wiring Diagram...

Страница 4: ...t Charge R134a 4 5 ounces Compressor 762 BTU hr Minimum Compressor Capacity 22 inches Minimum Equalized Pressure 70 F 30 PSIG 90 F 38 5 PSIG IMPORTANT SAFETY NOTICE This information is intended for use by individuals possessing adequate backgrounds of electrical electronic and mechanical experience Any attempt to repair a major appliance may result in personal injury and property damage The manufa...

Страница 5: ...ity Model Year cubic feet AHAM Rated Volume M 2001 Interior Features Shelves Icemaker Exterior A Leader Wire B Non Dispenser D Deluxe Wire IM Ready I Deluxe Glass D Cubed ice water K Spillproof Slideout Glass E Cubed crushed water M Spillproof Slideout Glass Quickspace F 6 Month filter Q Showcase Derivative Cubed crushed U AVB Derivative G 1 Year filter W HPS Derivative Cubed crushed X Regional De...

Страница 6: ...0 2 H A H D H F H G H H H L H M H R H S H T H V H Z 6 0 0 2 L A L D L F L G L H L L L M L R L S L T L V L Z 7 0 0 2 M A M D M F M G M H M L M M M R M S M T M V M Z 8 0 0 2 R A R D R F R G R H R L R M R R R S R T R V R Z 9 0 0 2 S A S D D F S G S H S L S M S R S S S T S V S Z 0 1 0 2 S A S D D F S G S H S L S M S R S S S T S V S Z 1 1 0 2 T A T D T F T G T H T L T M T R T S T T T V T Z 2 1 0 2 V A ...

Страница 7: ...cal or state consumer affairs office or your state s Attorney General Warrantor General Electric Company Louisville KY 40225 For The Period Of GE Will Replace One Year Any part of the refrigerator excluding water filter cartridge which fails due to a defect in From the date of the materials or workmanship During this full one year warranty GE will also provide free of charge original purchase all ...

Страница 8: ...r and bottom hinges to the cabinet Mounting holes in the hinges are not elongated and the hinges are not adjustable When reinstalling the hinges tighten screws firmly but avoid overtightening to prevent stripping Note When reversing the door swing read all instructions thoroughly before starting When handling parts use caution to avoid scratching paint Sort screws to correspond with related parts ...

Страница 9: ...e door away from the cabinet Lift the door straight up and off the bottom hinge and place on a protected surface Note If the washer is not on the bottom hinge check to see if it is stuck to the bottom of the door Reversing the Doors 1 Install the top hinge and screws on the opposite side of the cabinet Do not tighten the screws at this time 2 Remove the base grille by pulling it straight out from ...

Страница 10: ...e cover on the opposite side of the cabinet 7 Install the center hinge with the three long screws on the opposite side of the cabinet Replace the color matched cap 8 Move the metal door stop and any associated screws to the opposite side of the door Fresh Food Door Handles 1 Remove the plug button by carefully prying underneath the edge with a small flat blade Remove the screw that fastens the bot...

Страница 11: ... thimble hole 5 Move the front door plug button to the opposite side of the door and install in the screw hole Small Plug Buttons Plug Button Button Long Handle Handle Plug Handle Plug Pin Hole Short Handle 6 Install the handle to the opposite side of the door with 3 screws Note If equipped with long handle ensure that pin in the lower part of the handle is installed in bottom of the door 7 Instal...

Страница 12: ... Ensure that the washer is on bottom hinge pin 2 Line up the fresh food door with the center hinge bracket Install the hinge pin in the center hinge bracket and door with a 3 4 in socket Tighten the hinge pin in the center hinge bracket 3 Install the freezer door onto the center hinge pin and upper hinge screws loose Support the door on the handle side and make sure the door is straight and the ga...

Страница 13: ...sted in the same manner To remove Lift up the left side of the shelf and slide it left into the center of the shelf supports Rotate the right side of the shelf up and out of the shelf supports Refrigerator Compartment Freezer Compartment To replace Holding the shelf diagonally insert the left end of the shelf into the center of the shelf supports on the side wall at the desired level Insert the ri...

Страница 14: ...replace Engage the ends of the bin in the molded supports on the door and push down It will lock in place NOTE Do not overload the bin Slide Out Spillproof Shelf on some models The slide out spillproof shelf allows you to reach items stored behind others The special edges are designed to help prevent spills from dripping to lower shelves To remove Remove all items from shelf Slide the shelf out un...

Страница 15: ...LOW setting to provide lower humidity levels recommended for most fruits Snack Pan on some models This pan can be moved to the most useful location for your family s needs To remove slide the pan out to the stop position lift the pan up and past thestop position and lift it out Adjustable Temperature Deli Pan on some models When the pan is placed in the top 6 slots on the left side and the lever i...

Страница 16: ... location When the door cannot be fully opened remove the drawer farthest from the door first Make sure the drawer closest to the door is fully closed There is a latch at the front of the center slide rail Push down on the latch and slide the center slide rail to which the drawer is attached away from the door Remove the drawer ...

Страница 17: ...steel spring retainers that clip into elongated openings in the base channel To remove the grille pull it straight forward Doors The doors are of one piece construction with foam insulation One piece construction provides superior thermal performance and reduces air infiltration During manufacturing the doors are filled with hot foam insulation This may cause slight distortion or ripples in the in...

Страница 18: ...Cabinet leveling is done by adjusting the front rollers To adjust the front rollers use a 3 8 in socket or a large flat head screwdriver to turn the roller adjustment screws located behind the base grille The rear rollers are not adjustable To remove a front roller assembly from the base of the cabinet 1 Tilt the cabinet back and place a 3 in block under the side of the unit 2 Remove 3 hex head 1 ...

Страница 19: ...frigerators use an electronic icemaker Refer to Pub 31 9063 for service information Water Valve A single coil 120 VAC valve is secured to the rear of the cabinet inside the machine compartment on the left hand side GEA01142 GEA01137 ...

Страница 20: ...cover is diverted through the lower portion of the freezer air tower and is pushed though the mullion hole into the fresh food compartment air channel The air then exits the air channel in the front of the fresh food compartment creating a curtain of cold air along the front of the shelves The fresh food air channel also has a rear discharge to maintain deli drawer temperatures Air circulates thro...

Страница 21: ...rts it will damage the main control board If the resistor on the main control board is burnt you must replace the fan and the board see photo 5 16 0 03 Blade tip 1 0 0 05 Target Motor Air Flow Orifice GEA01149 Evaporator and Condenser Fan Resistors Evaporator Fan Resistor Condenser Fan Resistor Bad Evaporator Fan Resistor Evaporator Fan Adjustment Airflow ...

Страница 22: ...the motor which is the equivalent to a reduction in voltage Fan speed will be selected and maintained by the control board regulating the length and frequency of the 12 6 VDC pulse One complete revolution of the motor is comprised of all 4 poles To determine the rpm of the fan Measure the frequency being applied to the motor Multiply this number by 15 60 seconds divided by 4 poles For example a fr...

Страница 23: ...lerating to maximum speed Measure the fan rpm using the frequency between the blue and white wires High speed 195 to 200 Hz Medium speed 145 to 160 Hz Low speed 70 to 85 Hz Yellow Wire Signal The yellow wire is the input wire from the main control board The main control board provides 4 6 VDC effective voltage for low speed 8 1 VDC effective voltage for medium speed and 12 6 VDC for high speed The...

Страница 24: ...e compartment A rubber divider strip underneath the refrigerator divides the inlet and outlet sides of the machine compartment The rear access cover must be tightly fitted to prevent air from being exhausted directly out of the rear of the machine compartment bypassing the compressor The condenser fan is mounted with screws to a fan shroud and mounting bracket that is attached to the condenser To ...

Страница 25: ...are not opened the compressor will run up to 60 hours between defrosts If the doors are opened frequently and or for long periods of time the compressor run time between defrosts will be reduced to as little as 8 hours Adaptive Defrost Pre chill Operation 09 00 10 00 11 00 12 00 13 00 14 00 15 00 16 00 17 00 18 00 F R E E Z E R A I R T E M P E R A T U R E S Defrost Pre Chill 08 00 25 4 20 7 15 9 1...

Страница 26: ...porator fan and compressor can run continuously for 2 hours Adaptive Defrost Different sound levels can be heard when the fan changes speed Response time for drastic temperature change is 2 to 10 minutes The main control board will only respond to 8 degrees Fahrenheit of temperature change per minute as determined by resistance of sensor Abnormal Operating Characteristics Incorrect Operation Rapid...

Страница 27: ...l board detects 65 F from the evaporator thermistor The main control board must sense 65 F in less than 45 minutes or the defrost cycle will time out Normal defrost time is 25 minutes or less not including the 5 minute dwell or post dwell periods Defrost Overtemperature Thermostat The defrost overtemperature thermostat bimetal switch is mounted on the evaporator and provides overtemperature protec...

Страница 28: ...he evaporator and extends into the drain opening This probe transfers heat to the drain opening during defrost Two additional defrost probes are attached to the sides of the evaporator These probes extend upward between the freezer wall and evaporator sides to assist the defrosting process ...

Страница 29: ... the return side results in inconsistent run mode The return side consists of pins 3 and 6 Failure of the fresh food only side results in the fresh food defaulting to midpoint Failure of the freezer side results in the freezer defaulting to midpoint Temperature Touch Panel The temperature touch panel receives switched DC voltage from the main control board Failure of input results in default to mo...

Страница 30: ...n a f r o t a r o p a v e d e s u n e h w n a f d o o f h s e r f e l c y c o t d e s u s i e t u n i m r e p e g n a h c f o s e e r g e d 8 o t d n o p s e r o t d e r e t l i f s i k c a b d e e F n a f 1 J 3 C D V s p o r d e r u t a r e p m e t n e h w C T N s i r o t s i m r e h T e u l a v r o t s i m r e h t r e z e e r f f o k c a b d e e F e l c y c o t d e s u s i e u l a v s i h T n o ...

Страница 31: ...e p m e t m o r f t u p n I 3 J 0 1 C D V n o i t a r e p o c i t a r r e n i s t l u s e r t u p n i f o s s o L r e d o c n e e r u t a r e p m e t m o r f t u p n I S N O I T I N I F E D N I P D R A O B L O R T N O C R O T C E N N O C N I P T U P N I T U P T U O N O I T C N U F 4 J 1 l a t i g i D n o i t a c i n u m m o C l a t i g i D n o i t a c i n u m m o C d r a o b l o r t n o c d n a l ...

Страница 32: ...e d e v i t p a d a s n o i t a l u c l a c e d o m n o i t c e t o r p r e n i l l o r t n o c r o o d r e w o p n a f r o f d e s u e b t s u m h c t i w S s n o i t c n u f k c o l r e t n i r o o d e m o s d n a s n o i t a l u c l a c m r a l a r o o d s n o i t a l u c l a c r o o d t c u d d n a t h g i l r e s n e p s i d r o f d e s s e r p e d h c t i w s n o i t i s o p d e s o l c r o ...

Страница 33: ...d e s u t o N d e s u t o N 8 d e R e g a t l o v y l p p u s n a F C D V 2 1 t u p t u O C D V 2 1 3 n i p o t 8 n i p 2 J e l b a T r o t a c o L d r a o B l o r t n o C n i a M e d i S e g a t l o V w o L r o t c e n n o C 1 J n i P r o l o C e r i W t n e n o p m o C n o i t a n i m r e T t u p n I t u p t u O g n i d a e R e g a t l o V n i P o t n i P 1 d e R e u l B d o o f h s e r F r o t ...

Страница 34: ... o N d e s u t o N d e s u t o N d e s u t o N 9 e g n a r O l a r t u e N l a r t u e N l a r t u e N d r a o B l o r t n o C n i a M e d i S e g a t l o V w o L r o t c e n n o C 3 J n i P r o l o C e r i W t n e n o p m o C n o i t a n i m r e T t u p n I t u p t u O g n i d a e R e g a t l o V n i P o t n i P 5 w o l l e Y e u l B l o r t n o c e r u t a r e p m e T l e n a p 6 n w o r B e t i...

Страница 35: ... 33 ...

Страница 36: ...o o d Z F 8 d e s u t o N d e s u t o N d e s u t o N d e s u t o N 9 e g n a r O l a r t u e N l a r t u e N l a r t u e N d r a o B l o r t n o C n i a M e d i S e g a t l o V w o L r o t c e n n o C 3 J n i P r o l o C e r i W t n e n o p m o C n o i t a n i m r e T t u p n I t u p t u O g n i d a e R e g a t l o V n i P o t n i P 5 w o l l e Y e u l B l o r t n o c e r u t a r e p m e T l e n ...

Страница 37: ...4 3 F 6 3 F 8 F 2 8 F 5 3 F 4 F 4 3 F 6 3 F 9 F 1 9 F 4 3 F 6 F 3 3 F 5 3 F 1 1 F 1 Thermistors This main control board uses input from 3 thermistors These thermistors are located in the fresh food section the freezer section and on the evaporator The main control board monitors the thermistors to determine the temperature in these areas of the unit and determines which components to run and when ...

Страница 38: ...BLACK YELLOW YELLOW BLACK WIHTE COMM BLUE RPM MOD 2 5V BLUE BLUE WHITE THERMISTOR EVAP THERMISTOR FZ THERMISTOR FF1 RED WHITE RED WHITE BLUE RED BLUE RED EVAP FAN COND FAN SEE INDIVIDUAL DIAGRAM SEE INDIVIDUAL DIAGRAM 12V RED J2 5 J2 4 J2 3 J2 1 WHITE WHITE BLUE BLUE BLUE BLUE YELLOW YELLOW RED RED J1 7 J1 5 J1 4 J1 3 J1 1 J6 9 J6 6 TAB 1 TAB 2 TAB 4 J6 7 J6 4 MAIN CONTROL PWB SEE INDIVIDUAL DIAGR...

Страница 39: ...EZER LIGHT SWITCH DEFROST THERMOSTAT PINK PURPLE PURPLE PURPLE BROWN ORANGE ORANGE RED RED BROWN ORANGE BLACK ORANGE WHITE ICE MAKER VALVE ORANGE WHITE BROWN GREEN YELLOW TO MACHINE WIRING DEFROST THERMOSTAT BLUE ORANGE TO CABINET WIRING WHITE WHITE ORANGE RELAY OVERLOAD BLACK RUN CAPACITOR S 2 1 C R GREEN YELLOW ...

Страница 40: ...condenser does the same job as previous models Air is drawn into the condenser from the front left and rear left of the cabinet Air exits only from the right side of the cabinet Condenser Loop The condenser loop made of 5 32 in O D copper tubing is foamed in place behind the breaker frame and across the mullion It is not accessible for replacement The tubing is routed from the rear of the machine ...

Страница 41: ...ystem using currently accepted procedures Evaporator LOKRING Method 1 Recover the refrigerant 2 Remove the evaporator cover 3 Remove the defrost thermostat 4 Remove the defrost heater 5 Disconnect the ground wire from the evaporator and position all wiring to allow for evaporator removal 6 Remove the 2 screws that hold the evaporator to the cabinet Caution Tubing must be clean and free from burrs ...

Страница 42: ... Fan Connector Defrost Heater Defrost Heater Defrost Drain Probe Support Evaporator Evaporator Thermistor Defrost Overtempertaure Thermostat Icemaker Connector COMPONENT AND CONNECTOR LOCATOR VIEWS Freezer Thermistor Defrost Probe ...

Страница 43: ... 41 Temperature Control Fresh Food Door Switch Fresh Food Compartment Fresh Food Thermistor ...

Страница 44: ... 42 J1 To Thermistors J7 J3 To Temperature Control Board Main Control Board J2 To Evaporator Fan and Condenser Fan ...

Страница 45: ... 43 ...

Страница 46: ... 44 Compressor Relay and Overload Under Cover Capacitor Condenser Fan No Clean Condenser Dryer ...

Страница 47: ...rost on Evaporator Cover flowchart Heavy frost Remove blockage from evaporator cover vent area Blockage Verify thermistors are within proper range Is the resistance within range YES Check wiring connections If OK replace thermistor NO Check sealed system Does sealed system check OK YES Is the condenser fan running YES Go to Condenser Fan Not Running flowchart NO Is the compressor running Go to Com...

Страница 48: ...art NO Is the airflow in the fresh food compartment normal YES Look for blockage at vents or heavy frost on evaporator cover NO Go to Heavy Frost on Evaporator Cover flowchart Frost Remove blockage from evaporator cover vent area Blockage Verify thermistors are within proper range Is the resistance within range YES Check wiring connections If OK replace thermistor NO Check sealed system Does seale...

Страница 49: ...t speed YES Go to Evaporator Fan Not Running flowchart NO Is the airflow in the fresh food compartment normal YES Look for blockage at vents or heavy frost on evaporator cover NO Go to Heavy Frost on Evaporator Cover flowchart Frost Remove blockage from evaporator cover vent area Blockage Verify thermistors are within proper range Is the resistance within range YES Check wiring connections If OK r...

Страница 50: ...e 55 F NO Advise consumer of refrigeration installation requirements NO Verify fresh food thermistor is within proper range Is resistance within range YES Check wiring connections If wiring is OK replace thermistor NO YES Unit tests OK Run checks again Reset electronics by unplugging refrigerator for 15 seconds Look for usage problem Is evaporator fan operating at proper speed YES Go to Evaporator...

Страница 51: ... to terminal J8 black wire Is 120 VAC present NO Adjust settings and allow 24 hours to stabilize YES Verify freezer thermistor is within proper range Is the resistance within range Check wiring connections If OK replace thermistor YES NO Direct test compressor Did compressor start Replace compressor NO Check wiring to compressor overload and relay Replace defective part YES YES Replace main board ...

Страница 52: ...oard Measure between blue wire on connector and neutral orange wire on main board J7 9 Are there approximately 22 Check wiring harness Check defrost heater Check defrost thermostat Check evaporator thermistor value Value OK YES Check wiring connections If wiring OK replace thermistor NO Replace main board YES NO NO YES With doors open check for voltage at J7 6 to J7 9 and J7 7 to J7 9 Voltage pres...

Страница 53: ...Is voltage present Short in fan motor circuit Go to fan flowchart Replace main control board Unplug temperature control Does refrigerator start Replace encoder board Verify freezer thermistor is within proper range Is the resistance within range Check wiring connections If wiring is OK replace thermistor YES YES NO YES NO YES NO Does unit have encoder or touch panel Is touch panel lit Touch Panel ...

Страница 54: ... 5 and 5 Did evaporator fan start NO At the fan connector check for 13 VDC from the red to white wire and 8 to 13 VDC from the white to yellow wire Is the voltage correct for both Unplug J2 connector on the main control board Check for 13 VDC between pins J2 3 and J2 4 Is the voltage correct for both Replace main control board NO NO Repair wiring between main control board and evaporator fan motor...

Страница 55: ...ermistor to 70 F Reconnect power and set temperature controls to 5 and 5 Recheck voltage Is voltage correct Replace condenser fan motor Repair wiring between main control board and condenser fan motor Unplug J2 connector on the main control board Check for 13 VDC between pins J2 3 and J2 5 and 11 13 VDC between pins J2 3 and J2 8 Is voltage correct for both At the condenser fan connector check for...

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