GE PSH23SGNAFBS Series Technical Service Manual Download Page 30 | Manualshive

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GEA01194

Pin 1

J8

Compressor

Pin 1

J9

Defrost Heater

Pin 1

J11

Line

Pin 1

J12

Monogram Drain Pan Heater

Pin 9

J7

Neutral

Pin 8

NIC

Pin 7

FZ Door Switch

Pin 6

FF Door Switch

Pin 5

QuickChill Heater

Pin 4

Auger Motor Interlock

Pin 3

Water Valve

Pin 2

Crusher Solenoid

Pin 1

Auger Motor

Pin 1

QuickChill Htr.

Pin 2

QuickChill Htr.

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Summary of Contents for PSH23SGNAFBS Series

Page 1: ...g PUB 31 9090 02 02 MODEL SERIES PSH23SGNAFBS TECHNICAL SERVICE GUIDE GE Consumer Home Services Training Arctica Side By Side Refrigerator Inverter Compressor Low Noise High Performance ...

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: ...Condenser Fan 20 Fresh Food Fan 21 Main Control Board 22 Diagnostics 29 Compressor Not Running Flowcharts 29 Fresh Food Warm Freezer Normal Flowchart 30 Fresh Food Too Cold Freezer Normal Flowchart 31 Fresh Food Warm Freezer Warm Flowchart 32 Freezer Warm Fresh Food Normal Flowchart 33 Refrigerator Dead No Sound No Cooling Flowchart 34 Damper Not Operating Flowchart 35 Heavy Frost on Evaporator Fl...

Page 4: ...nce from previous models is that the main control board now operates the condenser fan and fresh food fan at three different speeds Both fans are actually the same fans found on previous models The new Arctica with inverter compressor is also more efficient than previous models The increased efficiency provided by the inverter compressor allows this refrigerator to receive an Energy Star rating Th...

Page 5: ...TU hr 3000 RPM Minimum Compressor Capacity 22 inches Minimum Equalized Pressure 70 F 45 PSIG 90 F 57 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 responsi...

Page 6: ... Right L Left Door Swing Exterior Color BS Black on Stainless WW White on White AA Almond on Almond BB Black on Black CC Bisque on Bisque WH White on Black Engineering A Initial Design B 1st Revision Model Year N 2002 Icemaker Exterior B Non Dispenser IM Ready D Cubed Ice Water E Cubed Crushed Water F 6 Month Filter Cubed Crushed G 1 Year Filter Cubed Crushed I In line Filter Indicator Cubed Crush...

Page 7: ... Locator Views Main Control Board Main Control Board Current Source Circuit Board Current Source Circuit Board Inverter Compressor Inverter Compressor Inverter Inverter Accumulator Evaporator Evaporator Accumulator ...

Page 8: ...essure vapor it begins to condense into a high pressure liquid This high pressure liquid refrigerant flows to the end of the condenser and is forced into the capillary tube Evaporation High pressure liquid refrigerant travels through the capillary and exits at a very high rate of speed into the much larger tubing of the evaporator Low pressure in the evaporator caused by the suction of the compres...

Page 9: ...OW PRESSURE LIQUID LOW PRESSURE VAPOR MIX OF LIQUID AND VAPOR MIX OF LIQUID AND VAPOR SINGLE SPEED COMPRESSOR 70 135 PSIG 85 90 PSIG at 75 F Ambient 0 5 PSIG 1 2 PSIG at 75 F Ambient COMPRESSOR CONDENSER EVAPORATOR CAPILLARY FILTER DRYER GEA01261 ...

Page 10: ...let of the condenser and the inlet of the capillary GEA01257 CAPILLARY CONDENSER COMPRESSOR SUCTION TUBE EVAPORATOR DRYER STRAINER MOLECULAR SIEVE OF BEADS SCREEN GEA01258 Filter A filter is provided in some refrigeration systems and furnished with some replacement compressors The filter has the appearance of a large diameter dryer It has a very fine mesh screen located at the outlet and a solid c...

Page 11: ...to the outlet of the dryer The capillary is not replaceable separately Heat Exchanger The function of the heat exchanger is to transfer heat from the warm liquid flowing through the capillary to the cool vapor flowing through the suction tube The heat exchange occurs where the capillary is soldered to the outside of the suction tube This arrangement improves the efficiency of the system By reducin...

Page 12: ... The refrigeration system operates with optimum efficiency and economy by changing the speed of the compressor and condenser fan to meet demand During times of high usage or in extremely warm ambient conditions the 3 speed inverter compressor will increase speed to meet greater refrigeration requirements When usage is low the compressor will operate at a slower speed reducing its energy requiremen...

Page 13: ...fans will always operate at the same speed low medium or high as the compressor Low side system pressure should be between 0 and 5 psig dependant on ambient temperature System pressures in an ambient temperature of 75 F should be High Side 85 to 90 psig Low Side 1 to 2 psig Refrigerant Charge The refrigerant used in the sealed system is R134a Proper system charge is 6 oz however an additional 0 5 ...

Page 14: ...ressor wattages at various speeds are LOW 65 watts MED 100 watts HIGH 150 watts BTU rating also varies according to operating speed Compressor speed is based on the temperature setpoint in conjunction with the cabinet temperature Speeds are selected according to the following cabinet temperatures 8 F to 19 5 F above setpoint high speed 3 5 F to 7 5 F above setpoint medium speed 1 F to 3 F above se...

Page 15: ...tart the inverter will briefly stop voltage output The inverter will make 12 consecutive attempts to start the compressor once every 12 seconds If after 12 attempts the compressor has not started an 8 minute count will occur After 8 minutes the inverter will attempt to start the compressor again If the compressor starts normal operation will resume If the compressor fails to start the process will...

Page 16: ...ive voltage to the inverter In the circuit between the main control board and the inverter a current source circuit board is used to amplify the pulse width modulated voltage The signal voltage at the inverter should be higher than the signal voltage sent by the main control board The inverter will select compressor speed voltage output based on this signal A signal voltage from the main control b...

Page 17: ...b from the machine compartment bottom Note It may be necessary to bend the process tube in order to remove the inverter If it is necessary to bend the process tube use extreme care 5 Turn the inverter horizontally and slide out of the machine compartment To remove the inverter cover Use a small screwdriver to release the two small tabs and carefully remove the inverter cover Compressor Lead Wires ...

Page 18: ...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 When the main control board determines that defrost is necessary it will force the refrigerator into a continuous cool mode pre chill During pre chill the freezer temperature may be driven below the set point However the fresh food temperature will be re...

Page 19: ...ges speed Condenser fan changes speed Fresh food fan changes speed Compressor and fans can run continuously for more than 8 hours Abnormal Operating Characteristics Incorrect Operation Rapid fan speed changes Fan takes at least 1 minute to change speeds Compressor running without the condenser fan The compressor and condenser fan should always run at the same time Liner Protection Mode The liner p...

Page 20: ...e is sent in pulses much like a duty cycle as opposed to an uninterrupted flow This pulsing of 13 2 VDC produces effective voltage being received at the motor which is the equivalent to a reduction in voltage Fan speed will be selected and maintained by the main control board regulating the length and frequency of the 13 2 VDC pulse One complete revolution of the motor is comprised of all 4 poles ...

Page 21: ... require nor read any feedback information from the fan motor Yellow Wire Signal The yellow wire is the input wire from the main control board The main control board provides 6 5 VDC effective voltage for low speed 8 VDC effective voltage for medium speed and 9 5 VDC for high speed The fan will operate in low speed only when the fresh food thermistor is satisfied Note When testing these motors You...

Page 22: ...r The condenser fan is mounted with screws to a fan shroud and mounting bracket that is attached to the condenser Refer to the illustration for fan blade adjustment The condenser fan is the same permanent magnet 4 pole DC motor used in previous Arctica models however a significant difference is that the fan will operate at 3 speeds Fan speed low medium high corresponds with compressor speed to min...

Page 23: ...ll draw cool air from the freezer compartment into the fresh food compartment providing cooling independent of evaporator fan operation The main control board gathers information from the fresh food thermistors to determine when and at what speed fan operation should occur A constant 12 VDC is provided to the fan from the main control board and switching occurs on the neutral side Speed is regulat...

Page 24: ...8 FF1 Thermistor J1 Pin 1 FF2 Thermistor Pin 2 FZ Thermistor Pin 3 Evaporator Thermistor Pin 4 5V Pin 5 Personality Input 1 Pin 6 Personality Input 2 Pin 7 Personality Input 3 Pin 8 Personality Input 4 Pin 9 Damper Blue J3 Pin 1 Damper White Pin 2 Damper Red Pin 3 Damper Yellow Pin 4 FF Encoder Select Pin 5 Comm Tx Rx J4 Pin 1 Comm 12V Pin 2 Comm Common Pin 3 Discrete Disp Input 1 Pin 4 Discrete D...

Page 25: ...l c y c o t o t p u r e w o p g n i r u d d a e r o s l a s i e u l a v s i h T e u l a v t s o r f e d e v o b a s i e r u t a r e p m e t e h t s i k c a b d e e F n o i t a u n i t n o c e l c y c r o e d o m n w o d l l u p o t n i s e o g r o t a r e g i r f e r f i e n i m r e t e d y l e t a i d e m m i s d n o p s e r d e r e t l i f n u 1 J 5 C D V 1 J n o s n i p y t i l a n o s r e p d ...

Page 26: ...d y a w 2 l l i h C k c i u Q d n a d r a o b l o r t n o c e r u t a r e p m e t d r a o b y a l p s i d r e s n e p s i d d r a o b l o r t n o c e r u t a r e p m e t l o o C m o t s u C 4 J 2 C D V y l p p u s C D V 2 1 4 J 3 C D V n o m m o c C D 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 5 J 1 r e p m a d l o o C m o t s ...

Page 27: ... o d r e z e e r f m o r f t u p n i 1 L s e v i e c e R s n o i t a l u c l a c t s o r f 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 n a f r o t a r o p a v e n i d e s o l c 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 o t t e n g a m r o o d t c u d d n a t h g i l...

Page 28: ... 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 d r a o B l o r t n o C n i a M e d i S C D 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 1 r o t s i m r e h t t u p n I A N 2 w o l l e Y d o o f h s...

Page 29: ... u t a r e p m e T l o r t n o c n o i t a c i n u m m o C l a t i g i d y a w 2 n o i t a c i n u m m o c 2 d e R e r u t a r e p m e T l o r t n o c t u p t u O C D V 2 1 3 n i p o t 2 n i p 4 J 3 e u l B e r u t a r e p m e T l o r t n o c n o m m o C C D V 2 1 3 n i p o t 2 n i p 4 J d r a o B l o r t n o C n i a M e d i S C D e g a t l o V w o L r o t c e n n o C 5 J n i P e r i W r o l o C t...

Page 30: ... a o B l o r t n o C n i a M e d i S C A V 0 2 1 r o t c e n n o C 7 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 e g i e B r e g u A t u p t u O C A V 0 2 1 9 n i p 7 J o t 1 n i p 7 J 2 r e v l i S d o i n e l o S e b u C t u p t u O C A V 0 2 1 9 n i p 7 J o t 2 n i p 7 J 3 w o l l e Y e v l a V r e t a W t...

Page 31: ... Resistance OK Replace compressor Note When ordering a replacement compressor order the compressor and inverter Replace the compressor first If the compressor does not start replace the inverter NO Check for 120 VAC L1 at inverter Voltage present YES Repair inverter wiring NO Replace inverter Check condenser fan for operation Fan operating NO Replace main control board NO NO Go to Condenser Fan No...

Page 32: ...fter reconnecting power Go to Damper Not Operating flowchart NO Yes Is the airflow within the fresh food normal Look for blockage at vents or heavy frost on evaporator cover NO Go to Heavy Frost on Evaporator flowchart Remove blockage from vent area Blockage Check sealed system Does sealed system check OK Unit tests OK Run checks again Reset electronics by unplugging refrigerator for 15 seconds Lo...

Page 33: ...ove 55 F to avoid low ambient condition Room temperature above 55 F Control settings OK Advise consumer of refrigeration installation requirements NO Is the damper closed YES NO Verify thermistors are within proper range using thermistor values chart Is the resistance within proper range YES Check wiring connections If OK replace thermistor NO Unit tests OK Run checks again Reset electronics by un...

Page 34: ...unplugging refrigerator for 15 seconds Look for usage problem Repair sealed system NO NO YES YES YES YES YES YES Check control settings and temperatures Food at setting of 5 and 5 with no door openings for 12 hours should be Fresh food 34 F to 40 F Freezer 3 F to 3 F Control settings OK Look for blockage at vents or heavy frost on evaporator cover Remove blockage from evaporator cover vent area Bl...

Page 35: ...blockage at vents or heavy frost on evaporator cover NO Blockage Go to Heavy Frost on Evaporator flowchart Check sealed system Does sealed system check OK 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 YES Is the evaporator fan running Go to Evaporator Fan Not Running f...

Page 36: ... present YES Short in fan motor circuit Go to Fan flowchart YES Unplug J4 connector from main control board Check for 12 VDC at control board pins J4 2 to J4 3 Voltage present NO Unplug the temperature control harness Does the refrigerator start once the harness is unplugged YES Replace temperature control board YES Replace main control board NO Verify thermistors are within proper range using the...

Page 37: ... chart Is the resistance within range Replace main control board YES YES Check wiring connections If OK replace thermistor NO Unplug harness connector at damper Measure resistance between the blue and red wires and between the white and blue wires Do you measure approximately 420 ohms for both readings NO Replace damper NO Unplug J3 connector from main control board Unplug the refrigerator to rese...

Page 38: ...trol board J7 pin 9 Are there approximately 37 ohms Always check door ajar customer usage numerous door openings etc Check wiring harness defrost heater and defrost overtemperature thermostat NO Verify thermistors are within proper range using thermistor values chart Is resistance within range Replace main board Check wiring connections If OK replace thermistor NO YES YES ...

Page 39: ...ck for 13 VDC from the red to white silver wire and 8 to 13 VDC from the yellow black to white silver wire Is the voltage correct for both Replace evaporator fan motor Unplug J2 connector on the main control board Check for 13 VDC between pins J2 8 and J2 3 and 8 to 13 VDC between pins J2 4 and J2 3 Is the voltage correct for both YES NO Repair wiring between main control board and evaporator fan ...

Page 40: ...check for 13 VDC from the red to white silver wire and 11 to 13 VDC from the yellow to white silver wire Is the voltage correct for both Replace the condenser fan motor YES Unplug J2 connector on the main control board Check for 13 VDC between pins J2 3 and J2 8 and 11 to 13 VDC between pins J2 3 and J2 5 Is the voltage correct for both NO Replace main control board YES NO Repair wiring between ma...

Page 41: ...4 Ω 0 1 4 1 k 6 7 2 Ω 0 2 3 k 3 6 1 Ω 0 1 0 5 k 0 1 Ω 0 2 8 6 k 2 6 Ω 0 3 6 8 k 4 Ω 0 4 4 0 1 k 6 2 Ω Thermistors This main control board uses input from 4 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 component...

Page 42: ... 40 Schematic 2 1 3 ...

Page 43: ... The refrigerator must be unplugged before servicing the inverter or compressor Caution Do not attempt to direct start the compressor The compressor operates on a 3 phase power supply Applying 120 VAC to the compressor will permanently damage the unit It is not possible to start the compressor without an inverter ...

Page 44: ... 42 Parts List DESCRIPTION PART NUMBER QUANTITY ACCUMULATOR WR02X11264 1 COMPRESSOR WR87X10064 1 HARNESS INVERTER COMM WR23X10274 1 INVERTER ASM EMBRACE WR55X10155 1 BOARD ASM MAIN CTRL VSC WR55X10156 1 ...

Page 45: ... 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 t r a...

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