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GE Profile PTWN8050MWW, User Manual

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GE Profile PTWN8050MWW User Manual Download Page 84

Copyright 2011 

84 

 Hall Sensor 

The Hall effect sensor measures the motor rpm. 

• Four wires connect the Hall sensor to the main board at the 6-pin dark   

  blue connector.  

• The Hall sensor measures approximately 9KΩ between the brown  

  and blue wires and the brown and red wires. 

• If the sensor has failed, the motor will not operate. 

Summary of Contents for Profile PTWN8050MWW

Page 1: ...GWS 05 06 2011 Copyright 2010 GE Profile 5 2 IEC cu ft Stainless Steel Capacity Washer Models PTWN8055MMS Metallic Silver PTWN8050MWW White 2011 Energy Star qualified Service Guide Pub 31 9211 ...

Page 2: ... for the interpretation of this information nor can it assume any liability in connection with its use WARNING To avoid 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 wash...

Page 3: ...use safety glasses with side shields safety gloves steel toe shoes for all repairs Dyneema Cut Resistant Glove Safety Glasses must be compliant with ANSI Z87 1 2003 Prescription Safety Glasses Plano Safety Glasses Steel Toe Shoes VR Gloves provide shock protection ...

Page 4: ...Copyright 2011 4 Warranty ...

Page 5: ...Copyright 2011 5 Nomenclature ...

Page 6: ...Copyright 2011 6 Model Serial Plate Model Serial plate is located on the rear of the backsplash just above the water inlet connections ...

Page 7: ...Copyright 2011 7 Mini Manual Mini Manual is packaged inside a plastic bag and is located inside the backsplash between the pressure switch and the water valve assembly ...

Page 8: ...dal Wave or Alpha Wash Basket spins at 230 RPM clockwise then counter clockwise Centrifusion Wash Basket spins slowly clockwise then counter clockwise Infusor Wash Tub remains stationary Infusor turn clockwise then counter clockwise ...

Page 9: ...Copyright 2011 9 Dispenser Drawer For powder detergent remove the tray insert To remove drawer for cleaning pull out to stop lift front upwards and pull completely out of machine ...

Page 10: ...Copyright 2011 10 HE Detergent Use Care recommends the use of HE detergent only ...

Page 11: ...ancels a cycle by pressing the power pad after four minutes the pump will turn on and pump the water out of the tub The control does not illuminate or does the tub spin just the pump is energized till the tub is empty Also doesn t matter if the lid is up or down ...

Page 12: ...ycle Cancellation NOTE 2 If the customer pauses a cycle for an extended amount of time after two hours have elapsed the machine will pump out the water in the tub and shut off Also doesn t matter if the lid is up or down ...

Page 13: ... programming the My Cycle feature the customer can not only program any cycle but can also add any of the cycle additions on the right of the display to the cycle functions These would include Fabric Softener Delay Start Extra Rise or Soak ...

Page 14: ...sed during the rinse cycles in order to use less water during rinse It sprays water over the clothes spray rinse as the basket rotates Jet Spray is the default rinse type unless either FABRIC SOFTENER or EXTRA RINSE cycle additions are selected ...

Page 15: ...Copyright 2011 15 Control Panel When the fabric softener pad is selected the machine will provide a deep rinse instead of the spray rinse ...

Page 16: ...Copyright 2011 16 Control Panel Components To access the control components first begin by removing five Phillips screws securing backsplash rear panel Remove rear panel from backsplash assembly ...

Page 17: ...Copyright 2011 17 Control Panel Components Protect top of washer with a towel or rag Tilt front control panel towards front of machine to disengage tabs Lay control panel on it s face on top of towel ...

Page 18: ...Copyright 2011 18 Control Panel Components Pressure Switch Water valve assembly Noise Filter RF choke Control assembly ...

Page 19: ...Copyright 2011 19 Control Panel Components To remove metal shield from control board assembly pull outward on side tabs Caution Metal edges are sharp ...

Page 20: ...Copyright 2011 20 Control Panel Components Removing the metal cover will expose the plug connections and the individual electronic components on the power board ...

Page 21: ...Copyright 2011 21 Control Panel Components To separate the control assembly from front panel remove ten 10 Phillips screws Lift board assembly from panel ...

Page 22: ...Copyright 2011 22 Control Panel Components Selector buttons or pads are held to the control panel with tabs and are replaced as a complete assembly ...

Page 23: ...Components The control assembly consists of a Power Board and a Display Logic Board They are held together as an assembly by plastic tabs and connected electrically by two interconnect plugs and cables POWER BOARD DISPLAY LOGIC BOARD ...

Page 24: ...Copyright 2011 24 Control Panel Components Red LED indicates that the power board is powered and awake ...

Page 25: ...Copyright 2011 25 Control Panel Components To separate the two control boards first pry back plastic tabs then pry the two boards apart ...

Page 26: ...Copyright 2011 26 Control Panel Components Finally disconnect the two electrical connectors from the Power Board ...

Page 27: ...Copyright 2011 27 Water Valve Assembly Rear View Water valve assembly is accessible after removing the control panel from the top of the machine ...

Page 28: ...Copyright 2011 28 Water Valve Assembly The water valve consists of a valve body and five solenoid coils It is only available as a complete assembly Each solenoid controls a specific water function ...

Page 29: ... 29 Water Valve Assembly Front View Bleach Dispenser Softener Jet Spray Cold Hot Each coil on the water valve assembly has an approximate resistance value of 30 Ω and should read 5 6vdc across the coil when energized ...

Page 30: ...Copyright 2011 30 Water Valve Assembly Pink colored plastic pressure fittings are used in the water distribution system for a tight fit and to reduce the possibility of leaks ...

Page 31: ...Copyright 2011 31 Water Valve Screens Hot and cold water inlet screens are used to prevent debris from entering the valve assembly ...

Page 32: ...alve Screens Inlet screens are easily removed for cleaning Remove them by grasping hold of the handle on the rear of the screen with a pair of needle nose pliers and pull straight out After cleaning re insert for continued use ...

Page 33: ...Copyright 2011 33 Noise Filter Noise filter helps to block out line noise that could adversely affect the washer control system ...

Page 34: ...Copyright 2011 34 Noise Filter L1 Neutral Out L1 Neutral In Line fuse 15 Amp line fuse is not replaceable Noise filter is replaced as an assembly ...

Page 35: ...Copyright 2011 35 Choke L1 Neutral and the ground wire are wrapped around and through a donut shaped ferrite core Choke helps to prevent electrical interference to nearby electronic devices ...

Page 36: ...Copyright 2011 36 Pressure Sensor The pressure sensor is connected by a clear hose to an air reservoir near the bottom of the outer tub and operates by a frequency kHz signal to the main control board ...

Page 37: ...e water level rises the air pressure in the reservoir increases The pressure is translated into an electrical signal frequency by the pressure sensor The frequency will vary from approximately 27 kHz empty tub to 21 kHz full tub This frequency can be measured at the pressure sensor between the purple and orange wires ...

Page 38: ...Copyright 2011 38 Pressure Sensor Sensor is held in place by three flexible plastic tabs ...

Page 39: ...t 2011 39 Top Cover To lift washer top first insert putty knife between apron and top seven inches from either side to release spring clips Lift lid reach inside and pull up on top as you release each clip 7 In ...

Page 40: ...Copyright 2011 40 Top Cover Bottom half of hinge assembly removed Washer top pivots on two rear mounted two piece hinge assemblies Caution Support top if raised over 90 degrees ...

Page 41: ...Copyright 2011 41 Top Cover Components Bleach dispenser assembly Lid lock assembly Dispenser drawer assembly Washer top show in an upright position with support not included ...

Page 42: ... To Remove Lid Begin by lifting washer top cover Then with a pair of needle nose pliers grasp spring loaded hinge pin on the left side lid hinge assembly Pull pin to the left as far as possible to disengage from pin opening in lid ...

Page 43: ...Copyright 2011 43 Lid Removal With hinge pin pulled completely to the left lift left side of the lid upwards to clear pin ...

Page 44: ...2011 44 Lid Removal Grasp lid and move to the left to disengage the right side hinge pin Lift and remove lid from machine Hydraulic closing mechanism contained in lid assembly Lid assembly comes as a single part ...

Page 45: ...Insert right side lid pin into hinge opening Use putty knife to depress left side hinge pin into hinge assembly Lower left side of lid into position Slowly remove putty knife allowing pin to enter into opening in lid assembly 1 2 2 3 3 ...

Page 46: ...Copyright 2011 46 Lid Hinge ...

Page 47: ...ssembly connector On Main PCB Lock assembly is secured to the underside of the washer top with two Phillips screws The assembly includes the interconnect cable and plug It connects to a six pin connector on the Main PCB at the plug shown above ...

Page 48: ...Copyright 2011 48 Lid Lock Assembly 3 2 1 6 5 4 Pin 3 to 4 5vdc Unlocked 0vdc Locked Pin 6 to 4 0vdc Unlocked 5vdc Locked Pin 1 to 2 12vdc Momentarily locking or unlocking ...

Page 49: ...Copyright 2011 49 Wash Basket To remove the wash basket Lift the top cover Remove the 8 Phillips head screws that hold the outer tub cover in place ...

Page 50: ...Copyright 2011 50 Wash Basket Place a flat blade screwdriver in the slot under the infusor cap and gently pry off ...

Page 51: ...r Phillips head screwdriver remove the 10 mm hex head screw that holds the infusor in place turn screw counterclockwise to remove Note The 10 mm screw has a serrated lock washer and a rubber O ring Pull the infusor up and out Remove the flat washer ...

Page 52: ...Copyright 2011 52 Wash Basket Using a socket hub nut wrench or Crescent wrench remove the 37 5 mm 1 1 2 SAE equivalent hub nut turn hub nut counter clockwise to remove Lift the wash basket up and out ...

Page 53: ... Rods The wash basket outer tub and motor are suspended by four rod and spring assemblies The rod and spring assemblies are attached to each corner of the washer cabinet They extend down and connect to the bottom of the outer tub ...

Page 54: ...Copyright 2011 54 Bottom of Washer Heater Thermostat Heater Drain Pump Clutch Motor Hall Sensor ATC Thermistor help Front of Washer Right side of Washer ...

Page 55: ... bottom of the outer tub The Heating element is held in place by a compressed rubber gasket When the 10 mm hex nut is tightened it squeezes the rubber gasket between the 2 mounting plates to seal the opening of the tub The hex nut is set from the factory at 43 4 in lbs of torque ...

Page 56: ...ostat 1 Remove 2 wires from the terminal ends of the heating element 2 Remove the three 8 mm hex head screws holding the heating element bracket in place Remove the bracket 3 Loosen the 10 mm hex nut until the rubber gasket is no longer compressed 4 Grasp the heating element and pull it from the tub 10 mm Hex Nut ...

Page 57: ...Copyright 2011 57 Heater CAUTION Proper torque must be applied to the 10mm hex nut in order to assure a proper seal Under torque could cause water leakage over torque could cause the tub to crack ...

Page 58: ...tside of tub for visual only Heating Element Specifications 120 VAC 1200 Watts 9 0 Amps 12 5 Ω The heating element is used only on the SANITIZE cycle The inverter board regulates the heating element through information received from the thermistor ATC control ...

Page 59: ...pyright 2011 59 Heater Hi Limit Thermostat The outer tub is protected from over heating from the heating element by a hi limit thermostat The hi limit thermostat is located on the bottom of the outer tub ...

Page 60: ... Important 1 Heater must be removed prior to thermostat removal 2 Make note of the two small posts on the bottom of the tub and the the two cut outs in the thermostat body for proper orientation 3 Four Phillips screws hold the thermostat in place ...

Page 61: ...stat is wired in series with the heating element If the hi limit thermostat reaches a temperature beyond its maximum temperature rating it will trip and disable the heating function only Heating functions will be restored when the Hi Limit thermostat cools and resets The hi limit thermostat has a trip temperature of 185 F 85 C 5 and a reset temperature of 86 F 30 C 5 ...

Page 62: ...2011 62 Heater Hi Limit Thermostat The reason for proper orientation of the thermostat is because the heater support is part of the thermostat body and must be positioned correctly for the heater to be installed ...

Page 63: ...Copyright 2011 63 Heater Hi Limit Thermostat View inside tub through heater opening with heater removed Note heater support mounted to top of thermostat ...

Page 64: ...Copyright 2011 64 Overflow Sensor Overflow sensor is located in the bottom rear of the machine just to the left of the drain pump ...

Page 65: ...or If an overloaded washer load causes a splash over it will be detected by the sensor The sensor will terminated the Alpha Wash or Tidal Wave part of the wash cycle Normal agitate and the rest of the cycles will continue unaffected ...

Page 66: ...pull water through fabric The TIDAL WAVE Wash system provides a gentler and more thorough cleaning TIDAL WAVE Wash is available only during COLORS NORMAL and WHITES HEAVY DUTY cycles from U C 49 90404 Worst case scenario in testing was with an overloaded tub with a pillow or pillows at the top of the load Splash over in this case was 192g or just over 6 ounces of water ...

Page 67: ...s of a 120 VAC 60 Hz motor impeller and impeller housing The pump is capable of pumping to a stand pipe height of 8 ft To gain access to the pump remove the thin plastic cover over the drain pump by pulling down on the ends to clear the 2 tabs Cover Tab ...

Page 68: ... pump bracket is not grounded Unplug the unit before servicing to avoid electric shock Note The impeller can be accessed for cleaning without removing the drain hoses Water will remain in hoses even when the tub appears empty Use care to avoid water spills ...

Page 69: ...flat blade screwdriver When viewed from the impeller housing end rotate the housing in a counterclockwise direction to remove Remove any foreign objects from the impeller and impeller housing Inspect the impeller for any damage and replace the pump assembly if necessary Lift Tab Upward ...

Page 70: ...11 70 Drain Pump Removal To remove the drain pump Disconnect power to the machine Remove the thin plastic cover over the drain pump by pulling down on the ends to clear the tabs Remove the drain hoses from the pump ...

Page 71: ...e drain hoses are difficult to remove due to a sealing compound used at the factory Squeeze each clamp and slide it back Carefully break each hose loose by inserting a small flat blade screwdriver under the hose to break the seal Remove the hoses ...

Page 72: ...old the drain pump to the washer frame Remove the drain pump When installing apply a thin coat of sealing compound WH60X15 to the inner surface of the drain hoses to prevent leaks Remove the 2 Phillips head screws that hold the drain pump to the mounting plate Remove the drain pump Remove Remove ...

Page 73: ...r unlocks the basket and infusor together depending on the wash cycle pattern The infusor is connected directly to the motor shaft Whenever the motor is rotating the infusor is rotating The clutch only locks or unlocks the wash basket Clutch motor Clutch Shifter Assembly ...

Page 74: ...nd basket are in the locked position during the following cycles Water Fill Wet Load Sensing Tidal Wave Wash Centrifusion Wash Spin Spray Rinse The infusor and the basket are in the unlocked position during the following cycles Dry Load Sensing Infusor Wash ...

Page 75: ... the basket by engaging teeth on the inside of the rotor with teeth on the clutch coupler When the basket and infusor are in the locked position the clutch moves downward and engages the rotor and clutch coupler teeth allowing the basket to rotate with the infusor ...

Page 76: ...ch moves downward and engages the rotor and clutch coupler teeth allowing the basket to rotate with the infusor UNLOCKED POSITION When the basket and infusor are in the unlocked position the clutch moves upward disengaging the clutch coupler and rotor teeth allowing the infusor to rotate independently of the basket ...

Page 77: ... 77 Clutch Motor The clutch motor is secured to the bottom of the tub with two 10mm screws The power board supplies 120 VAC to the clutch motor through the blue and white wires when the clutch motor changes position ...

Page 78: ...witch to open or close This can be measured between the brown and blue wires on the power board at the WH6 plug When the clutch is in the unlocked position the switch should be closed 0 Ω When the clutch is in the locked position the switch should be open infinity White Brown Blue Blue ...

Page 79: ...Copyright 2011 79 Clutch Shifter Removal To remove the clutch shifter assembly Remove the rotor Remove the three Phillips head screws from the clutch coupler plate Remove the clutch coupler assembly ...

Page 80: ...ccess the motor the washer must be placed on its side Place a towel or blanket on the floor to prevent scratches to the surface of the washer Remove the 24 mm 15 16 in SAE equivalent rotor nut with a socket or adjustable Crescent wrench rotate rotor nut counterclockwise to remove Remove the flat washer Pull the rotor away from the drive shaft ...

Page 81: ...in place by one 10 mm hex head screw will give better access to the motor connectors Caution The stator connector and Hall sensor connector are very fragile handle with care Disconnect the wiring harnesses from the stator and the Hall sensor Hall Sensor Motor Power Remove ...

Page 82: ...ight 2011 82 Motor Removal Remove the six 10 mm hex head screws that hold the stator in place Note When assembling be sure to put the motor and Hall sensor wires back in the wiring guard away from the motor ...

Page 83: ...Copyright 2011 83 Motor Bottom of tub shown will motor rotor stator completely removed ...

Page 84: ...res the motor rpm Four wires connect the Hall sensor to the main board at the 6 pin dark blue connector The Hall sensor measures approximately 9KΩ between the brown and blue wires and the brown and red wires If the sensor has failed the motor will not operate ...

Page 85: ...Copyright 2011 85 Hall Sensor Hall Sensor resistance and supply voltage from power board Red to Blue Blue to Brown Brown to Red 19KΩ 9KΩ 9KΩ ...

Page 86: ...Copyright 2011 86 Hall Sensor The Hall Sensor is a separate component from the stator and can be replaced separately Hall sensor assembly clips to the frame of the stator ...

Page 87: ...er temperature sensor thermistor to regulate the wash water temperature The thermistor has a negative temperature coefficient as temperature increases resistance decreases The thermistor is located in the bottom of the outer tub under the wash basket ...

Page 88: ... C by opening or closing the hot and cold water valves The resistance of the thermistor can be checked between the gray and white wires on the power board at the 2 wire yellow plug Water Temperature Ranges Category Target Temperature Cold 65 F Warm 95 F Hot 120 F Sanitize 140 F ATC Resistance Temp Chart ...

Page 89: ...C The resistance of the thermistor can be checked between the gray and white wires on the power board at the 2 wire yellow plug Make sure to unplug the connector to isolate the thermistor before taking resistance readings ...

Page 90: ...sing assembly Remove the infusor the hub nut wash basket motor assembly and clutch shifter assembly Remove the screw that holds the ground wire to the bearing housing Remove the twenty one 10 mm hex head screws that attach the bearing housing assembly and safety shield ...

Page 91: ...using Assembly Remove the bearing housing assembly Note When installing the bearing housing be sure the safety shield is in place Make sure the motor and Hall sensor wires are positioned in the wiring guard and away from the motor ...

Page 92: ... 2011 92 Service Mode Enter To Enter Service Mode While in the Idle Mode unit powered but off display blank Press and hold the SPIN TEMP buttons Press the POWER button First test t1 will appear on the display t1 ...

Page 93: ...vice Mode Navigate Once in the service mode turn the selector knob to navigate between the different tests To enter the test displayed press the START button To end a test and move to another test turn the selector knob t1 ...

Page 94: ...xit To Exit Service Mode Pressing the POWER button from either the menu screen or while a test is running will exit the service mode Disconnecting from power or if no key is pressed for 15 minutes will also terminate the service mode ...

Page 95: ...ted as part of test Test t2 Error Codes Press start button to display most recent error code EEprom will store five error codes and display them in chronological order by turning selector knob To clear error codes press start pad with error displayed Test t3 Button Pad Check Buttons or pads should light and beep when pressed Each time a button or pad is pressed the display will change from 111 to ...

Page 96: ...t valve is energized C Jet spray valve is energized d Bleach valve is energized E Softener valve is energized Pump will activate when water frequency is 21 0 KHz Water level frequency will be displayed Test t5 Heater Thermister Test Press start to initiate test Tub will begin to fill with water When water reached the 25 8 KHZ level heater will be energized for 5 minutes Water temperature will be d...

Page 97: ... Check Tidal Wave Wash Press start to initiate test Tub will spin CCW at 230 RPM for 3 minutes RPM value will be displayed Test t8 Agitate 1 Check Centrifusion Wash Press start to initiate test Tub will slowly spin CW then stop then spin for 3 minutes With an empty tub 720 902 should be displayed This is the reading from the load sensor for an empty tub It is not the RPM reading of the tub speed ...

Page 98: ...W then CCW for 1 minute Test t10 Spin Check Press start to initiate test Pump will run until water frequency is under 26 0 KHz Tub will then slowly ramp up to maximum RPM 1000 RPM RPM will be displayed Tub will spin at maximum RPM for 3 minutes After 3 minutes tub will slowly decelerate to 0 RPM Note 999 will be the maximum RPM displayed ...

Page 99: ...mistor E4 Inlet valve failure E5 Pump failure E6 Clutch error E7 Pressure sensor failure E8 Lid switch failure lid opened during run state RPM 40RPM E9 EEprom error E10 Motor not rotating properly E11 No E11 error code E12 Clutch coupling error E13 IPM Integrated Power Module Thermistor Monitors current flow to the motor stator E14 Door lock unlock error ...

Page 100: ...Copyright 2011 100 Schematic ...

Page 101: ...Copyright 2011 101 END OF PRESENTATION THANK YOU FOR YOUR ATTENTION ...

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