GE PSI21MGM Technical Service Manual Download

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Mechanical Disassembly

Table of Contents

Door Handle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Door Gasket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Fresh Food Compartment Quick Access Door . . . . . . . . . . . . . . . . . . . . . . . . . 18

Fresh Food Door Light Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Fresh Food Compartment Door Shelves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Fresh Food Compartment Shelves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Fresh Food Compartment Drawers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Fresh Food Compartment Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Water Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Fresh Food Fan and Mullion Damper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Deli Fresh Damper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Fresh Food Thermistors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Temperature Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Freezer Door Bins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Doors and Door Hinges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Fresh Food Door Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Rollers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Roller Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Freezer Compartment Shelves and Bins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Freezer Door Light Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Ice Dispenser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Ice Dispenser Auger Drive and Cube Solenoid . . . . . . . . . . . . . . . . . . . . . . . . . 25

Icemaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Summary of Contents for PSI21MGM

Page 1: ......

Page 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...

Page 3: ... Specifications 4 Nomenclature 5 Warranty Information 6 Operating Characteristics 7 General Locator Views 14 Mechanical Disassembly 16 Diagnostics 32 Component and Connector Locator Views 55 Schematics and Strip Circuits 61 Illustrated Parts Catalog 63 ...

Page 4: ...erature setpoint type and have settings of 0 9 with 9 being the coldest temperature possible The new NO CLEAN condenser is serviceable from the rear and is designed to prevent the customer from having to clean the condenser in normal usage conditions Sealed system operation and compressor are functionally the same as previous models with some minor changes The Profile Perfomance and Arctica side b...

Page 5: ...mates with a standard three prong grounding wall receptacle to minimize the risk of electric shock hazard from this appliance The customer should have the wall receptacle and circuit checked by a qualified electrician to make sure the receptacle is properly grounded Where a standard two prong wall receptacle is encountered it is the personal responsibility and obligation of the customer to have it...

Page 6: ...sor Capacity 22 inches Minimum Equalized Pressure 70 F 48 PSIG 90 F 60 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 manufacturer or seller cannot be responsible for the interpretation of ...

Page 7: ... CONTRACT DERIVATIVE X REGIONAL DERIVATIVE ICEMAKER EXTERIOR B NON DISPENSER ICEMAKER READY D CUBED ICE WATER E CUBED CRUSHED ICE WATER F 6 MO FILTER CUBED CRUSHED ICE G 1 YR FILTER CUBED CRUSHED ICE I IN LINE FILTER INDICATOR C C W EXTERIOR COLOR WW WHITE WHITE AA ALMOND ALMOND BB BLACK BLACK CC BISQUE BISQUE WH WHITE BLACK BS BLACK STAINLESST CONFIGURATION S SIDE BY SIDE REF VOLUME 23 25 27 29 M...

Page 8: ...t a d e h t m o r F e s a h c r u p l a n i g i r o t r a p y n A s l i a f h c i h w e g d i r t r a c r e t l i f r e t a w g n i d u l c x e r o t a r e g i r f e r e h t f o s i h t g n i r u D p i h s n a m k r o w r o s l a i r e t a m n i t c e f e d a o t e u d r a e y e n o l l u f y t n a r r a w e d i v o r p o s l a l l i w E G e g r a h c f o e e r f e m o h n i d n a r o b a l l l a ...

Page 9: ...8 Cooling Operation Adaptive Defrost 9 Pre Chill Operation Adaptive Defrost 9 Defrost Heater Operation Adaptive Defrost 9 Dwell Period Adaptive Defrost 9 Post Dwell Adaptive Defrost 9 Liner Protection Mode 9 Electronic Icemaker 10 Dispensing Functions 10 Quick Ice 10 Door Alarm 10 Dispenser Light 10 Dispenser Lock 10 Filters 11 Hinge System and Door Closure 11 Airflow Cabinet Interior 11 Jelly Rol...

Page 10: ... 8 degrees of temperature change per minute as determined by resistance change of sensor Abnormal Operating Characteristics Incorrect Operation Fresh food fan on and evaporator fan off Evaporator fan on fresh food fan and compressor off and damper shut Rapid fan speed changes fan takes at least 1 minute to change speeds Compressor running without the condenser fan The compressor and condenser fan ...

Page 11: ... After the 5 minute dwell period the unit goes into post dwell Post Dwell Adaptive Defrost The post dwell period is designed to cool the evaporator before circulating air within the refrigerator This prevents any residual heat on the evaporator from being distributed in the freezer During this period the compressor and condenser fan are on but all interior fans are off and the damper is closed Pos...

Page 12: ...stored in the event of a power failure Door Alarm The DOOR ALARM pad is used to turn on and turn off the door alarm feature If the feature is on the DOOR ALARM LED will flash when the door is opened If the door is open for more than 2 minutes the door alarm will sound The alarm can be stopped by pressing the DOOR ALARM pad or by shutting the door If the DOOR ALARM pad is pushed while the door is o...

Page 13: ...g loaded arm located at the bottom of the cabinet for each door The arm provides a stop for the door when the door is partially open and automatically closes the door when the door is almost closed IMPORTANT The refrigerator rollers must be adjusted correctly for proper door closure When the rollers are adjusted correctly the door should close easily when open approximately 45 degrees halfway Airf...

Page 14: ...s located at one end of the jelly roll condenser and a solid plate is located at the other end Air is drawn in through the outside diameter of the condenser and pulled out by the condenser fan The condenser is located in the machine compartment which can be accessed from the back of the unit at the bottom ...

Page 15: ...1 J6 K7 PAN HTR K6 WATER AUGER K1 C CR K2 K4 COMP J4 1 8 J7 DEFROST COOLING PRE CHILL DEFROST HEATER ON TIME MINUTES COMPRESSOR RUN TIME MINUTES ACCUMULATED FF AND FRZ DOOR OPENINGS MINUTES THERMISTOR INPUTS ENCODER INPUTS MODEL SELECT COMMUNICATION INPUT OUTPUT DAMPER COILS FAN OUTPUTS DOOR SWITCH INPUTS COMPRESSOR DEFROST OUTPUTS AND INPUTS OUTPUTS PROCESSING UNIT ...

Page 16: ...ature Controls Temperature Controls Damper Damper Fresh Food Thermistor Thermistor Fresh Food Thermistor Freezer Light Switch Freezer Light Switch Evaporator Fan Evaporator Fan Evaporator Thermistor Thermistor Evaporator Thermistor Evaporator Evaporator Freezer Thermistor Thermistor Freezer Thermistor ...

Page 17: ...ontrol Board Jelly Roll Condenser Jelly Roll Condenser Compressor Compressor Overload and Relay under cover Overload and Relay under cover Dryer Dryer Capacitor Capacitor Condenser Fan Condenser Fan Water Solenoids Water Solenoids ...

Page 18: ...Compartment Drawers 19 Fresh Food Compartment Lights 19 Water Filter 20 Fresh Food Fan and Mullion Damper 20 Deli Fresh Damper 21 Fresh Food Thermistors 21 Temperature Control Panel 22 Freezer Door Bins 22 Doors and Door Hinges 22 Fresh Food Door Adjustment 23 Rollers 23 Roller Adjustment 24 Freezer Compartment Shelves and Bins 24 Freezer Door Light Switch 24 Ice Dispenser 24 Ice Dispenser Auger D...

Page 19: ...r Light 26 Evaporator Fan 26 Evaporator Thermistor 27 Defrost Thermostat 27 Defrost Heater 27 Evaporator Drip Pan 28 Evaporator 28 Freezer Thermistor 28 Condenser Fan 29 Main Processor Card 29 Water Solenoids 29 ...

Page 20: ...pull in an outward motion until the molded gasket separates from the door liner Fresh Food Compartment Quick Access Door The fresh food compartment allows access to the fresh food compartment without opening the fresh food door 1 Open the quick access door and remove the hinge Torx head screws 2 located on each side of the door 2 With a small flat blade screwdriver remove the door frame and door f...

Page 21: ...ger items and pull out for easy access 1 Pull the shelf out until the shelf stop tab meets the compartment stop 2 Push the shelf stop tab down and pull the shelf out until it is removed GEA00928 Fresh Food Compartment Drawers Fresh food compartment drawers are designed for storage of fruits vegetables and deli items The drawers are located in the lower portion of the fresh food compartment 1 Pull ...

Page 22: ...nterclockwise and pull it down 2 To install the filter push it up while turning 1 2 turn clockwise Do not force the filter Fresh Food Fan and Mullion Damper The fresh food compartment fan is located under the upper ductwork in the fresh food compartment This fan distributes cold air from the freezer via the mullion damper The mullion damper is located in the same assembly as the fan Both are contr...

Page 23: ...inst the compartment and open the back cover 10 Disconnect the wire connections and remove the damper or fan Deli Fresh Damper The deli fresh damper is located at the bottom of the cold air ductwork It allows the flow of cold air to be adjusted to the deli fresh drawer 1 Remove the deli fresh damper adjusting knob and the lower light cover 2 Remove the center ductwork by unlocking upper and lower ...

Page 24: ...s located at the lower left and right hand corners of the card 7 Remove the card Freezer Door Bins The freezer door bins are located on the inside of the freezer door and tilt out to allow easy access of frozen items 1 Tilt the bin up and slide it out of the door GEA00942 Doors and Door Hinges IMPORTANT The freezer door is not adjustable The fresh food door can be adjusted up and down to match the...

Page 25: ...stable The fresh food door can be adjusted to match the height of the freezer door IMPORTANT The refrigerator rollers must be adjusted correctly to ensure proper door closure Refer to the Roller Adjustment section in this chapter for more information 1 Remove the base grille 2 Turn the hinge adjustment pin located on the fresh food lower hinge clockwise to raise the door level and counterclockwise...

Page 26: ...tion of the freezer compartment and sends a signal to the processor 1 With a small flat blade screwdriver unlock the locking tabs and pull the switch out until the wire connector is visible 2 Disconnect the wire connector and remove the switch Ice Dispenser The ice dispenser is located in the upper portion of the freezer compartment This assembly stores ice made by the icemaker and dispenses ice o...

Page 27: ...4 in housing mounting screws 4 located at the four corners of the housing 2 Slide the housing forward until the connector is visible disconnect the connector and remove the unit from the housing GEA00952 Screws Screws Note Drive fork has reverse threads turn clockwise to remove 3 Remove the fork from the drive motor by turning it clockwise 4 Disconnect the motor connectors and remove the ground wi...

Page 28: ...cemaker bracket screws 4 located at the four corners of the bracket GEA00957 Screws Screws 2 Remove 1 4 in ice dispenser drive mounting bracket screws 2 and remove the brackets GEA00958 Screws Screws 3 Remove 1 4 in upper evaporator fan ductwork screws 2 4 Unlock the tabs and remove the lower evaporator fan ductwork 5 Remove 1 4 in evaporator cover screws 4 and remove the cover GEA00959 Screws Scr...

Page 29: ...nto the top portion of the evaporator The thermostat sends temperature information to the processor The defrost heater must be replaced when replacing the thermostat 1 Remove the lower fan duct work from the evaporator cover 2 Remove the 1 4 in evaporator cover screws and remove the evaporator cover 3 Disconnect the defrost thermostat wiring connector 4 Remove the defrost thermostat from the evapo...

Page 30: ...tube the capillary tube must be desoldered first 6 Desolder the capillary tube from the evaporator 7 Desolder the suction line Use a pair of pliers to hold the evaporator 8 Remove the evaporator 9 With a file score the capillary tube just above the soldered section Break off the soldered section of the capillary tube This helps prevent solder from plugging the tube during assembly 10 Place a new e...

Page 31: ...ior to the card or the card will be destroyed 1 Secure power to the unit 2 Remove the 1 4 in processor card panel screws 10 and remove the panel 3 Disconnect the processor cable connectors 4 Remove the card by unlocking plastic locks located at the corners of the card GEA00969 Locks Locks Water Solenoids When the solenoids receive a signal from the processor they route water to the filter cooler a...

Page 32: ... 30 Notes ...

Page 33: ... 31 Notes ...

Page 34: ...eezer Normal diagnostic chart 45 Freezer Warm Fresh Food Normal diagnostic chart 46 Compressor Not Running diagnostic chart 47 Damper Door Not Opening or Not Closing diagnostic chart 48 Condenser Fan Not Running diagnostic chart 49 Evaporator Fan Not Running diagnostic chart 50 Fresh Food Fan Not Running diagnostic chart 51 Heavy Frost on Evaporator diagnostic chart 52 Thermistor Test diagnostic c...

Page 35: ...umber in s e s u a C e r u l i a F 1 e l b a T t n e m t r a p m o C r e z e e r F t n e m t r a p m o C d o o F h s e r F 5 1 e v o b A o t i e h n e r h a F r o t s i m r e h t r e z e e r f e c n a t s i s e r h g i H r o t s i m r e h t r o t a r o p a v e e c n a t s i s e r w o L e r u l i a f n a f r o s n e d n o C e r u l i a f n a f r o t a r o p a v E n o k c u t s r e t a e h t s o r f...

Page 36: ...de 1 5 to completely reset the system Enter code 1 6 to exit diagnostic mode The temperature control panel is reset automatically Unplug the refrigerator for at least 10 seconds Test mode will terminate when the refrigerator is plugged back in Test mode will terminate automatically after 15 minutes of inactivity WARMER COLDER ADJUST REFRIGERATOR TEMP 9 IS COLDEST WARMER COLDER ADJUST FREEZER TEMP ...

Page 37: ... f i y a l p s i d Z F e h t n o P K O t o n f i y a l p s i d Z F e h t n o F 0 4 l o r t n o c n i a m o t d r a o b r e s n e p s i D n o i t a c i n u m m o c d r a o b K O f i y a l p s i d Z F e h t n o P K O t o n f i y a l p s i d Z F e h t n o F 0 6 f l e s l e n a p l o r t n o c e r u t a r e p m e T t s e t 5 3 e g a p n o t s e T f l e S l e n a P l o r t n o C e r u t a r e p m e T e...

Page 38: ...n the display If the unit is not equipped with the Quick Chill option the third thermistor quick chill will display a 0 and 3 audible beeps will sound at the temperature control panel This is not a failure if the unit is not equipped with the Quick Chill option Thermistor test results P Pass 0 Failed S Short to 5 VDC B Bad amplifier Thermistor test sequence is 1 Fresh food top thermistor 2 Fresh f...

Page 39: ...ES ACCUMULATED FF AND FRZ DOOR OPENINGS MINUTES THERMISTOR INPUTS ENCODER INPUTS MODEL SELECT COMMUNICATION INPUT OUTPUT DAMPER COILS FAN OUTPUTS INPUTS PROCESSING UNIT 1 Blk 2 Red 3 Blu 4 Pur 5 Wht 1 Yel 2 Red Blk 3 Wht Brn 4 Blu Yel 1 Blu Red 2 Yel 3 Red Wht 4 Blu Wht 5 Blu J4 J2 J3 J1 8 Red 7 Not Used 6 Blk Wht 5 Yel 4 Yel Blk 3 Wht 2 Blu Wht 1 Blu GEA00906 ...

Page 40: ...r 7 Red 8 Not Used 9 Orn GEA00907 PAN_HTR AUGER N DFZ DFF OCH COMMON WATER CRUSHER QC K5 DEFROST K3 L1 COMP J8 J9 J4 J12 DEFR LINE 2 1 J6 K7 PAN HTR K6 WATER AUGER K1 C CR K2 K4 COMP J7 DEFROST COOLING PRE CHILL DOOR SWITCH INPUTS COMPRESSOR DEFROST OUTPUTS AND OUTPUTS PROCESSING UNIT ...

Page 41: ...5 n i p 1 J 2 J 1 e u l B n a f r o t a r o p a v E r e t e m o h c a t C D V 3 6 3 n i p o t 1 n i p 2 J 2 J 2 e t i h W e u l B t u p n i n a F C D V 2 1 3 n i p o t 2 n i p 2 J 2 J 3 e t i h W n o m m o c n a F C D V 2 1 8 n i p o t 3 n i p 2 J 2 J 4 k c a l B w o l l e Y n a f r o t a r o p a v E C D V 4 2 1 3 n i p o t 4 n i p 2 J w o l C D V 8 d e e p s h g i h d e e p s 2 J 5 w o l l e Y n ...

Page 42: ...D V 0 6 e g a t l o V g n i l e v a r T 3 J 3 n w o r B e t i h W r e p m a D 3 n i p 4 J o t 3 n i p 3 J C D V 3 2 e g a t l o V g n i d n a t S C D V 0 6 e g a t l o V g n i l e v a r T 3 J 4 w o l l e Y e u l B r e p m a D 3 n i p 4 J o t 4 n i p 3 J C D V 3 2 e g a t l o V g n i d n a t S C D V 0 6 e g a t l o V g n i l e v a r T 4 J 1 k c a l B d r a o b r e s n e p s i D n o m m o c e v i e ...

Page 43: ...e v l a v r e t a W C A V 0 2 1 9 n i p 7 J o t 3 n i p 7 J 7 J 4 e t i h W d e R k c o l r e t n i r o t o m r e g u A C A V 0 2 1 9 n i p 7 J o t 4 n i p 7 J 7 J 5 e t i h W e u l B r e t a e h l l i h c k c i u Q C A V 0 2 1 9 n i p 7 J o t 5 n i p 7 J 7 J 6 e l p r u P t h g i l r o o d d o o f h s e r F k c a b d e e f h c t i w s C A V 0 2 1 9 n i p 7 J o t 6 n i p 7 J 7 J 7 d e R h c t i w ...

Page 44: ...steps in thermistor test to determine problem No Repair wire and connection at 6 pin connector Yes Check dispenser and temperature control lights Do they work Yes No Unplug J2 connector from control board No Yes Yes Yes Repair or replace power cord No Check for 12 VDC at control board pin J2 8 to J2 3 Do you have voltage Yes Short in fan motorcircuits proceed to fan flow charts Replace control boa...

Page 45: ...er fan running Is the compressor running Is the evaporator fan running Is the airflow within the freezer normal Run Service Diagnostics Test 1 4 Defrost system check see page 52 No Heavy Frost Go to Condenser Fan Not Running Flowchart page 49 Go to Evaporator Fan Not Running Flowchart page 50 Go to Compressor Not Running Flowchart page 47 No No No Check sealed system Normal frost pattern on evapor...

Page 46: ...cycle Run service diagnostic test 1 0 Damper test see page 48 No Is the Fresh food fan running Run service diagnostic test 1 1 Fan test see page 51 No Yes Is the airflow within the Fresh Food normal Yes Look for blockage at vents or heavy frost on evaporator cover No Run Service Diagnostics Test 1 4 Defrost system check see page 52 Remove blockage from vent area Blockage Run Service Diagnostics Te...

Page 47: ...re adjustment Low ambient Is the room temperature must be above 55 F Control settings OK Advise consumer of refrigerator specifications No Is damper closed Yes Go to Damper flowchart page 48 Damper should be closed when FF temperature below normal No Run Service Diagnostic Test 0 7 Thermistor check see page 53 Did test check OK Yes Repair fault No Unit tests OK Run checks again Reset electronics b...

Page 48: ...mal Yes Look for blockage at vents or heavy frost on evaporator cover No Blockage Run Service Diagnostics Test 1 4 Defrost system check see page 52 Check sealed system Normal frost pattern on evaporator Yes Repair sealed system Remove blockage from vent area No Yes Unit tests OK Run checks again Reset electronics by unplugging refrigerator for 15 seconds Look for usage problem Run Service Diagnost...

Page 49: ...Check temperature setting of unit Yes Check for 120VAC at connector J7 9 orange wire to TAB1 J11 Black wire Do you have 120VAC Direct test the compressor Did it start Replace compressor Yes No Check wiring to compressor overload relay Yes Replace board No No Caution Unplug power when disconnecting and connecting connectors on the board ...

Page 50: ...400 ohms J3 1 to J3 2 400 ohms J3 3 to J3 4 Check for same resistance values at damper motor No Damper motor defective replace motor No Unplug refrigerator then power up Check for 6VDC from J3 1 to J3 4 Do you have the correct voltage You can only read voltage during 10 seconds of intial start up Yes Replace the main board No Replace damper Yes Run Service Diagnostic Test 0 7 Thermistor Check see ...

Page 51: ...ce approximatelty 1 5K ohms to 3K ohms Does the condenser fan motor read open Does the condenser fan motor read shorted below 1K ohm Replace the condenser fan motor Repair wiring harness Check for voltage at main board J2 Is there at least 12VDC between pins 3 5 and between 3 8 Condensor motor stalled Repair or replace condenser motor Replace main board Yes No Yes No No Yes Yes Yes Check voltage a...

Page 52: ...k voltage at main board J2 Is there at least 12 VDC between pins 3 and 8 Yes Replace fan motor Yes Replace main board and fan motor No Repair wiring harness Yes Check wiring to Evaporator fan motor Check the resistance on connector J2 3 white wire to J2 4 yellow wire Does circuit read open Yes Yes Check voltage at J2 3 white wire and J2 4 yellow wire More than 8 vdc No Replace board and motor Repl...

Page 53: ... Measure the resistance directly at the fan motor Is the resistance approximatley ohms No Repair wiring harness Yes Does the fan motor read open Replace FF fan motor Yes No Does the FFfan motor read shorted No Check voltage at main board J2 Is there 12 VDC between pins 8 and 6 Yes Replace FFfan motor Replace main board and FF fan motor No Yes Run Service Diagnostic Test 1 1 Did the FF fan run No F...

Page 54: ...ain board Is 120 VAC present Yes Run Service Diagnostic Test 0 7 for thermistors Do thermistors pass test Check door ajar Customer usage numerous door openings Yes Repair wiring connections or replace thermistor No No Replace main board Yes Check wiring harness Check defrost heater Check defrost thermostat Reinstall blue connector Measure for 120VAC at defrost heater Is 120VAC present Check wiring...

Page 55: ...c test show O open sensor No Check wiring connections for an open circuit If OK replace thermistor Yes Verify thermistors are within proper range using temperature resistance chart on page 54 Yes Replace main board Yes Did diagnostic test show S shorted sensor No Check wiring connections for a short in the circuit If OK replace thermistor Yes Did diagnostic test show B bad 5VDC circuit No ...

Page 56: ...t a r e p m e T F s e e r g e D o l i K n i e c n a t s i s e R s m h O 0 4 0 4 k 8 6 6 1 Ω 5 3 1 3 k 5 0 2 1 Ω 0 3 2 2 k 8 8 Ω 5 2 3 1 k 5 6 Ω 0 2 4 k 4 8 4 Ω 5 1 5 k 4 6 3 Ω 0 1 4 1 k 6 7 2 Ω 5 3 2 k 1 2 Ω 0 2 3 k 3 6 1 Ω 5 1 4 k 7 2 1 Ω 0 1 0 5 k 0 1 Ω 5 1 9 5 k 8 7 Ω 0 2 8 6 k 2 6 Ω 5 2 7 7 k 5 Ω 0 3 6 8 k 4 Ω 5 3 5 9 k 2 3 Ω 0 4 4 0 1 k 6 2 Ω 5 4 3 1 1 k 2 2 Ω 0 5 2 2 1 k 8 1 Ω 5 5 1 3 1 k 5 ...

Page 57: ...vaporator Fan Evaporator Fan Freezer Thermistor Freezer Thermistor Defrost Thermostat Defrost Thermostat Light Light Freezer Light Switch Freezer Light Switch Evaporator Thermistor Evaporator Thermistor Evaporator Evaporator Defrost Heater Defrost Heater ...

Page 58: ... 56 GEA00980 Fresh Food Light Switch Fresh Food Light Switch Damper Damper Fresh Food Lights Fresh Food Lights Fresh Food Thermistor Fresh Food Thermistor ...

Page 59: ...ontrol Board Jelly Roll Condenser Jelly Roll Condenser Compressor Compressor Overload and Relay under cover Overload and Relay under cover Dryer Dryer Capacitor Capacitor Condenser Fan Condenser Fan Water Solenoids Water Solenoids ...

Page 60: ...ERMISTOR INPUTS ENCODER INPUTS MODEL SELECT COMMUNICATION INPUT OUTPUT DAMPER COILS FAN OUTPUTS INPUTS PROCESSING UNIT 1 Blk 2 Red 3 Blu 4 Pur 5 Wht 1 Yel 2 Red Blk 3 Wht Brn 4 Blu Yel 1 Blu Red 2 Yel 3 Red Wht 4 Blu Wht 5 Blu J4 J2 J3 J1 8 Red 7 Not Used 6 Blk Wht 5 Yel 4 Yel Blk 3 Wht 2 Blu Wht 1 Blu GEA00906 NOTE Refer to the Main Control Board Locator Tables in the Diagnostics chapter for more...

Page 61: ...DFZ DFF OCH COMMON WATER CRUSHER QC K5 DEFROST K3 L1 COMP J8 J9 J4 J12 DEFR LINE 2 1 J6 K7 PAN HTR K6 WATER AUGER K1 C CR K2 K4 COMP J7 DEFROST COOLING PRE CHILL DOOR SWITCH INPUTS COMPRESSOR DEFROST OUTPUTS AND OUTPUTS PROCESSING UNIT NOTE Refer to the Main Control Board Locator Tables in the Diagnostics chapter for more information ...

Page 62: ... 60 Thermistor Locator GEA00765 J4 J3 J1 Evaporator Thermistor Located on Evaporator Freezer Thermistor Fresh Food Thermistors ...

Page 63: ... 61 Schematics ...

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Page 65: ... 63 Illustrated Parts Catalog Exploded views of PSS25MGMABB are for general reference Always refer to specific model for latest part information ...

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Page 70: ... 68 Ref No Part Number Description 228 WR85X10022 Low Side Assembly ...

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