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Defrost Cycle

The refrigerator utilizes an adaptive defrost cycle that operates a glass
enclosed heater to remove frost from the evaporator. Defrost time has
changed from 60 hours adaptive defrost to 96 hours adaptive defrost.

The control board determines the length of time the heater is energized.
It does this by monitoring the freezer evaporator thermistor. Once the
temperature of the thermistor reaches 70°F, the control cycles the defrost
heater off. A bi-metal safety thermostat provides a backup in the event
the evaporator thermistor fails. The safety thermostat prevents the
temperature from exceeding 140°F.

mabe CONFIDENTIAL AND PROPRIETARY INFORMATION-NOT FOR PUBLIC DISCLOSURE. January 2008

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Содержание Profile PFSS5NJWSS

Страница 1: ...5 1 Cu Ft French Door Bottom Freezer Refrigerator with External Dispenser PFSS5NJWSS André Leduc Training Technical Support mabe CONFIDENTIAL AND PROPRIETARY INFORMATION NOT FOR PUBLIC DISCLOSURE January 2008 Pub 08 MAN RE 01 ...

Страница 2: ...ing Sequence 24 EMI Filter 25 26 How to Access the Evaporator 27 to 34 Defrost Heater 35 Ice Maker Fill tube 36 Return Duct Heaters 37 38 39 Articulating Door Mullion French Door 40 41 Door Closure Mechanism 42 Ambient Thermistor 43 Thermistor Replacement 44 Fresh Food Crispers 45 Product Warranty 46 Schematic 47 EMI Filter Schematic 48 How to Disassemble Dispenser Assembly 49 Factory Transport an...

Страница 3: ...dded storage volume with increased surface area for quick temperature recovery They are ENERGY STAR rate and have a variable speed inverter compressor and fans on all models They are equipped with up front electronic touch temperature controls with digital temperature display An external air thermistor changes the control setting based on ambient condition to keep the fresh food and freezer compar...

Страница 4: ...n it is within 1 inch of the closed position They feature a BrightSpace interior with GE Reveal lighting They are available in white black bisque or stainless finish Trim kits are available that allow adding decorator or wood panels to match kitchen cabinets There is a new nomenclature PDSF5NBWABB instead of PDSF25NBWABB The cubic foot volume was previously specified as 25 now it only shows as 5 F...

Страница 5: ...5 min Thermistor kilo ohm resistance 0 F 42 5KΩ Thermistor kilo ohm resistance 37 F 14KΩ Thermistor kilo ohm resistance 77 F 5KΩ Over temperature thermostat 140 110 F Defrost thermistor 70 F REFRIGERANT CHARGE R134a 5 50 ounces 155 9 grams mabe CONFIDENTIAL AND PROPRIETARY INFORMATION NOT FOR PUBLIC DISCLOSURE January 2008 ...

Страница 6: ...ermines the length of time the heater is energized It does this by monitoring the freezer evaporator thermistor Once the temperature of the thermistor reaches 70 F the control cycles the defrost heater off A bi metal safety thermostat provides a backup in the event the evaporator thermistor fails The safety thermostat prevents the temperature from exceeding 140 F mabe CONFIDENTIAL AND PROPRIETARY ...

Страница 7: ... is opened If 3 minutes elapse before the door is closed the liner protection mode will become active Once the door 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 closed count If 3 minutes elapse without a door opening the liner protection mode will completely deactivate If a door is opened within the ...

Страница 8: ...t dispenser water valve French door models only J4 Display board J3 Damper J1 Fresh food thermistor freezer thermistor freezer evaporator thermistor ambient temperature thermistor model selector J15 Inverter J2 Fan common evaporator fan condenser fan mullion bar heater model selector mabe CONFIDENTIAL AND PROPRIETARY INFORMATION NOT FOR PUBLIC DISCLOSURE January 2008 ...

Страница 9: ...ent receives chilled air through an electronic damper at the bottom rear of the fresh food compartment The damper is controlled by the main control board When open the damper allows 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 mabe CONF...

Страница 10: ...r testing During repairs DC polarity must be observed Reversing the DC polarity causes a shorted motor and or board Red Wire Supply Each motor uses an internal electronic controller to operate the motor Supply voltage from the main control board remains at a constant 13 6 VDC Blue Wire Feedback RPM On previous Arctica models the blue wire reported rpm speed information to the main control board fo...

Страница 11: ... is satisfied Note When testing these motors You cannot test with an ohmmeter DC common is not AC common Verify 2 voltage potentials a Red to white power for internal controller 13 7 VDC b Yellow to white power for fan 5 5 to 12 VDC Observe circuit polarity Motors can be run for short periods using a 9 volt battery Connect the white wire to the negative battery terminal only Connect the red and ye...

Страница 12: ...the voltage output from the main control board Voltage output from the control board to the fan is 13 6 VDC however to regulate the speed of the fan the main control board uses pulse width modulation PWM When operating voltage is 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 equival...

Страница 13: ...temperatures causing slightly higher speeds Condenser fan speed is controlled by Pulse Width Modulation PWM the same method used to control fan speeds for the evaporators mabe CONFIDENTIAL AND PROPRIETARY INFORMATION NOT FOR PUBLIC DISCLOSURE January 2008 Only when freezer temperature is 20 F above the set point Ex initial startup ...

Страница 14: ...vegetable crisper drawers and the crisper drawers cover and frame assembly Caution The glass inserted in the deli pan cover and frame may easily separate Care should be taken when removing the deli pan cover and frame assembly 2 Partially open the deli pan lift and remove the deli pan cover and frame 3 Pull the deli pan out to the fully open position 4 Remove the in hex head screw from the air tow...

Страница 15: ...Pull up on the damper assembly then remove the air tower cover 6 Disconnect the damper motor wire harness 7 Carefully remove the tape and gasket mabe CONFIDENTIAL AND PROPRIETARY INFORMATION NOT FOR PUBLIC DISCLOSURE January 2008 ...

Страница 16: ...am air tower that houses the damper 9 Remove the damper from the separated Styrofoam air tower mabe CONFIDENTIAL AND PROPRIETARY INFORMATION NOT FOR PUBLIC DISCLOSURE January 2008 A complete damper assembly is now available Part number is WR17X12456 ...

Страница 17: ... Hz and 104 Hz This voltage is delivered to the compressor through 3 lead wires Each wire will carry identical voltage and frequency Note The compressor leads must be connected to measure voltage output If the compressor wires are not connected or if an open occurs in one of the 3 lead wires or in the compressor the inverter will stop voltage output When checking the inverter voltage output connec...

Страница 18: ...board will send a PWM run signal from the J15 connector of between 4 6 VDC effective voltage to the inverter all wires must be connected The 4 6 VDC indicate compressor running speed The inverter will select the compressor speed voltage output based on this signal The main control board will only send a run signal to the inverter when the compressor should be on Note When measuring signal voltage ...

Страница 19: ...o start the compressor again If the compressor starts normal operation will resume If the compressor fails to start this process will be repeated Removing power to the unit will reset the inverter count When power is restored the inverter will attempt to start the compressor within 8 seconds The inverter has a built in circuit protection to guard against damage from a failed or shorted compressor ...

Страница 20: ...le type It operates on 3 phase 80 to 230 VAC within a range of 57 to 104 Hz Note Certain voltmeters will not be able to read voltage output or frequency from the inverter Compressor wattages at various speeds are LOW 65 watts MED 100 watts HIGH 150 watts The compressor is controlled by the inverter which receives its signal from the main control board Varying the frequency to the inverter changes ...

Страница 21: ...g to the following cabinet temperatures with freezer temperature being the primary 7 F to 19 5 F above freezer set point high speed 4 5 F to 6 5 F above freezer set point medium speed 1 F to 4 F above freezer set point low speed 1 F to 2 5 F above refrigerator set point low speed mabe CONFIDENTIAL AND PROPRIETARY INFORMATION NOT FOR PUBLIC DISCLOSURE January 2008 ...

Страница 22: ...mpressor pin functions are identical and compressor lead wire configuration is of no importance A resistance of 9 to 11 ohms should be read between any 2 of the 3 pins Should an open occur in the compressor winding or should one of the compressor lead wires become open or disconnected the inverter will stop voltage output to the compressor High compressor torque enables the compressor to start aga...

Страница 23: ...d on the compressor Reconnect power and feel for a vibration when the compressor tries to start It may take up to 8 seconds before the compressor attempts to start Note When ordering a replacement compressor order both the compressor and inverter Replace the compressor first If it fails to start replace the inverter When servicing the compressor it is important to dress the wiring to keep low volt...

Страница 24: ...ressor should have 10 to 12 VDC If there is no voltage replace the main control board 3 Check for compressor vibration to feel if the compressor is running Disconnect power from the unit place a hand on the compressor reconnect power and feel for vibration 4 Check for a resistance of 9 to 11ohms between any 2 of the 3 pins on the compressor If any 2 are open or shorted replace the compressor When ...

Страница 25: ...ter is accessed from the back of the refrigerator and it is located on the left side of the compressor The EMI filter is on all 21 cu ft and 25 cu ft single and French door models The 20 cu ft and 22 cu ft single and French door models do not have this filter To remove the EMI filter 1 Remove the 5 16 in hex head screw that attaches the bracket to the cabinet 2 Pull the bracket out and remove the ...

Страница 26: ...r cont 3 Cut the 2 plastic wire ties that hold the EMI filter to the bracket 4 Mark and disconnect the wires from the EMI filter mabe CONFIDENTIAL AND PROPRIETARY INFORMATION NOT FOR PUBLIC DISCLOSURE January 2008 ...

Страница 27: ...e freezer shelves and baskets 4 Loosen the top two 3 8 in hex head screws 1 full turn then remove the remaining 8 3 8 in hex head screws that attach the drawer front to the rail assemblies Note Do not remove the 6 torx screws from the rail assemblies 5 Lift and remove the drawer front and place it on a protected surface mabe CONFIDENTIAL AND PROPRIETARY INFORMATION NOT FOR PUBLIC DISCLOSURE Januar...

Страница 28: ... front and rear tab that are captured in a notch in each of the 2 support rails 6 Remove the vertical divider from the support rails a Release the front of the vertical divider by pressing down on the front support rail while applying upward pressure the front of the divider mabe CONFIDENTIAL AND PROPRIETARY INFORMATION NOT FOR PUBLIC DISCLOSURE January 2008 ...

Страница 29: ... the above procedure to release the rear of the divider from the rear support rail Note When installing the vertical divider position the top of the divider into the recess in the freezer ceiling before positioning the bottom over the notches in the support rails mabe CONFIDENTIAL AND PROPRIETARY INFORMATION NOT FOR PUBLIC DISCLOSURE January 2008 ...

Страница 30: ...two in hex head screws that attach the icemaker to the freezer wall 8 Using a small flat blade screwdriver expand the 2 clips and disconnect the icemaker wire harness mabe CONFIDENTIAL AND PROPRIETARY INFORMATION NOT FOR PUBLIC DISCLOSURE January 2008 ...

Страница 31: ...aker bin support to the left freezer wall mabe CONFIDENTIAL AND PROPRIETARY INFORMATION NOT FOR PUBLIC DISCLOSURE January 2008 Note The freezer fan cover is held to the evaporator cover with a Phillips head screw 3 cover tabs and 2 right side hinge tabs 10 Remove the single Phillips head screw ...

Страница 32: ...an cover out approximately 90 degrees then remove the fan cover 12 Using a flat blade screwdriver press the tab in and sharply lift up one end of each support rail and remove each rail mabe CONFIDENTIAL AND PROPRIETARY INFORMATION NOT FOR PUBLIC DISCLOSURE January 2008 ...

Страница 33: ...s that attach each drawer rail assembly to the freezer side walls Note The evaporator cover is attached to the evaporator compartment with two in hex head screws 3 bottom tabs and 8 snap tabs located on the back of the cover mabe CONFIDENTIAL AND PROPRIETARY INFORMATION NOT FOR PUBLIC DISCLOSURE January 2008 ...

Страница 34: ...e fan bracket 15 Grasp and pull the right side of the fan opening towards the front of the freezer to release the right side snap tabs 16 Pull out the left side of the cover and carefully remove it from the evaporator compartment mabe CONFIDENTIAL AND PROPRIETARY INFORMATION NOT FOR PUBLIC DISCLOSURE January 2008 ...

Страница 35: ...During assembly the clip must be installed on the evaporator and inserted in the drain to prevent drain freeze up A ceramic and wire support prevents the heater from sagging and touching the metal drain trough if the glass is broken 2 Remove the ceramic and wire support and the heat conducting clip from the evaporator 3 Bend the aluminium tabs back located at each end of the defrost heater and low...

Страница 36: ...tat is closed Remove the evaporator fan cover to access the icemaker fill tube heater See How to access the evaporator Disconnect the fill tube heater wire harness The resistance of the fill tube heater is approximately 2644 ohms mabe CONFIDENTIAL AND PROPRIETARY INFORMATION NOT FOR PUBLIC DISCLOSURE January 2008 ...

Страница 37: ... 2 fresh food compartment return air ducts The heaters prevent water from freezing and blocking the air flow in the ducts Restricted ducts can cause warm fresh food temperatures See Airflow mabe CONFIDENTIAL AND PROPRIETARY INFORMATION NOT FOR PUBLIC DISCLOSURE January 2008 ...

Страница 38: ...nd the fill tube heater are energized along with the defrost heater during the defrost cycle when the over temperature thermostat is closed Return Duct Heater Test If open duct heaters are suspected perform the following 1 With the defrost thermostat closed test for approximately 27 ohms the equivalent resistance of this parallel circuit between J9 and J7 9 For a resistance reading other than appr...

Страница 39: ...nd inspect wiring at the defrost thermostat location Repair exposed faulty wiring or connections The return duct heaters are integral to the foamed in place internal ductwork of the refrigerator and are not replaceable mabe CONFIDENTIAL AND PROPRIETARY INFORMATION NOT FOR PUBLIC DISCLOSURE January 2008 ...

Страница 40: ...pened the mullion stays in position When the right side door is opened the spring loaded mullion is activated to fold against the handle side of the door liner 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 Door closed pin in track Door opening pin exiting track mabe CONFIDENTIA...

Страница 41: ...he heater operates on 13 6 VDC when both doors are closed It is necessary to close the left side door and close the right side light switch to test for the operating voltage of 13 6 VDC To replace the articulating door mullion assembly it is necessary to remove the 2 Phillips head screws from the top and bottom hinges The wire harness can be pulled out from the recess in the bottom of the door and...

Страница 42: ...k in the base channel The cam is mounted to the bottom of the drawer with two T 20 Torx screws The 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 Note Each door closer cam can be installed incorrectly Ensure each cam is installed to th...

Страница 43: ...the freezer down to 0 F At lower room temperatures the ambient temperature 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 an acceptable temperature If the ambient temperature thermistor is not functioning the main control board default will presume th...

Страница 44: ...e replacement use plastic bell connectors Fill each connector with white silicone part RTV102 then splice a new thermistor into the harness as shown in the illustration mabe CONFIDENTIAL AND PROPRIETARY INFORMATION NOT FOR PUBLIC DISCLOSURE January 2008 ...

Страница 45: ...d dry Adjustable Humidity Crisper on some models Slide the control all the way to the HIGH setting to provide high humidity recommended for most vegetables Slide the control all the way to the LOW setting to provide lower humidity levels recommended for most fruits mabe CONFIDENTIAL AND PROPRIETARY INFORMATION NOT FOR PUBLIC DISCLOSURE January 2008 ...

Страница 46: ...ly Thirty Days water filter if included from the original purchase date of the refrigerator Any part of the water filter cartridge which fails due to a defect in materials or workmanship During this limited thirty day warranty GE will also provide free of charge a replacement water filter cartridge GE Warranty Full 1 Year Entire Appliance Parts Labour In Home mabe CONFIDENTIAL AND PROPRIETARY INFO...

Страница 47: ...47 Schematic m mabe CONFIDENTIAL AND PROPRIETARY INFORMATION NOT FOR PUBLIC DISCLOSURE January 2008 ...

Страница 48: ...48 EMI Filter Schematic mabe CONFIDENTIAL AND PROPRIETARY INFORMATION NOT FOR PUBLIC DISCLOSURE January 2008 ...

Страница 49: ...49 How to remove dispenser assembly mabe CONFIDENTIAL AND PROPRIETARY INFORMATION NOT FOR PUBLIC DISCLOSURE January 2008 ...

Страница 50: ...50 Factory transport and life test on the appliances mabe CONFIDENTIAL AND PROPRIETARY INFORMATION NOT FOR PUBLIC DISCLOSURE January 2008 ...

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