GE GFDS250EF Manual
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GE GFDS250EF Manual

Front load dryer
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Marcone 2014 MSA
Training
GE Mission 1
Front Load Dryer
1

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Summary of Contents for GE GFDS250EF

  • Page 1 Marcone 2014 MSA Training GE Mission 1 Front Load Dryer...
  • Page 2 GE Front Load Dryer MODELS GFDS250EF/GF GFDS255EF/GF GFDS260EF/GF GFDS265EF/GF GFDS360EF/GF GFDS365EF/GF GHDS370EF/GF GHDS375EF/GF GFDR480EF/GF GFDR485EF/GF Note: “0” models are White. “5” models are either Metallic Carbon or Ruby Red. (GFDR480GF)

  • Page 3: Warranty

    Warranty...
  • Page 4 Nomenclature GFDR480GFWW G - Brand: G = GE P = Profile F - Configuration: F = Frontload D - Product: D = Dryer R - Key Feature: S = Standard R = Riser 480 - Options Package E - Heater Type: E = Electric...
  • Page 5 Features (480 Series) GFDR480EF/GF GFDR485EF/GF • 8.0 DOE • Chrome Door • Chrome Knob with Rubber Grip • Chrome UI Trim • Steam • 12 Cycles • 5 Dryness Levels • eDry • eMonitor • Detangle • Interior LED Light •...
  • Page 6 Model / Serial Plate Location The model / serial number plate is located behind the door, just under the drum opening.
  • Page 7 Mini-Manual (Tech Sheet) Location The mini-manual is taped to the backside of the control panel along with the UI/IMC board. Control escutcheon has to be removed to access.
  • Page 8 RJ45 Connector Location The RJ45 connector is located on the top rear of the machine. In some areas, this will allow consumers to connect to their local energy grid via DSM (demand side management). DSM is used to better control energy usage throughout the home.

  • Page 9: Feature Definitions

    Feature Definitions - Steam Steam - A mist of room temperature water sprayed into the drum. Steam is used on the "Steam Dewrinkle" and the "Steam Refresh" cycles. Steam Dewrinkle - Used for loads left in the dryer for an extended period of time. Steam Refresh - For slightly wrinkled dry garments.
  • Page 10 Feature Definitions - eDry • eDry - Reduces the total energy consumption by adjusting certain heat settings. • eDry is selected by pressing the eDry Button. Machine settings when eDry is selected: Dry Temp = Low Extended Tumble = eDry is Disabled Sanitize = eDry is Disabled...
  • Page 11 Feature Definitions - eMonitor eMonitor - Visual display of the energy use of the appliance. eMonitor Ranges: Good (1 light) to Best (5 lights).
  • Page 12 Feature Definitions – Detangle Detangle - Reduces tangling, dries more evenly, and improve drying times periodically reversing drum rotation direction. Detangle is selected by pressing the Detangle button.
  • Page 13 Feature Definitions – Detangle • When the Detangle feature is selected, the control will execute a reversing tumble profile. • When the Detangle feature is not selected, the control will execute a Non- reversing tumble profile. • When the Detangle Option is changed during the Run State, the control will stop the drum, and start the new Tumble Profile.

  • Page 14: Dryness Levels

    Feature Definitions – Dryness levels • Dryness Level - Provides an option for consumers to end the dry cycle when the clothes reach a certain moisture content. • The dryness level is set by pressing the Level button. Available Dryness Levels: Damp Less Dry More Dry...
  • Page 15 Feature Definitions - Integrated Riser Integrated Riser - Adds an additional 7" of height to the unit.

  • Page 16: Control Panel Removal

    Disassembly - Control Panel Removal Remove the cycle selector knob by pulling it forward.
  • Page 17 Disassembly - Control Panel Removal Remove the cycle selector knob retainer by pulling it forward.
  • Page 18 Disassembly - Control Panel Removal Remove the T20 Torx Head screw securing control panel to frame.
  • Page 19 Disassembly - Control Panel Removal Lift the control panel straight up to disengage the mounting tabs.
  • Page 20 Disassembly - Control Panel Removal Multiple cables / plugs connect the UI/IMC board to the electromechanical components of the dryer.
  • Page 21 Disassembly – Top Panel Removal • Remove the control panel. • Remove the 4 top panel screws. • Pull the top panel forward to disengage the mounting tabs, and then lift up. Note: It may be necessary to move the top panel back- ward and forward while lifting to cause the top panel to dis-...

  • Page 22: Door Removal

    Disassembly – Door Removal • Remove the 2-T-20 Torx door hinge screws. The door will remain in place after the 2 screws have been removed. • Lift up slightly on door assembly and pull forward.
  • Page 23 Disassembly – Riser Front Panel Removal • Tilt the dryer back and install prop blocks. • Remove the 3 Riser front panel screws. • Slide the panel to the left and pull forward. NOTE: The dryer does not have to be removed in order to remove the front panel.
  • Page 24 Disassembly - Front Panel Removal • Remove the control panel. • To reduce weight, remove the door assembly. • Remove the 4 front panel screws located at the top of the front panel.
  • Page 25 Disassembly - Front Panel Removal • Lean the dryer back and install prop blocks. • Remove the 3 riser front panel screws. • Slide the panel slightly to the left and pull it forward. Prop blocks removed for better viewing...
  • Page 26 Disassembly - Front Panel Removal • Next, remove 3 Phillips head screws securing front panel to drum support.
  • Page 27 Disassembly - Front Panel Removal • Lift panel approximately two inches to release from the two pin supports on either side and the three tabs at the bottom. • Do not remove at this point. See next step...
  • Page 28 Disassembly - Front Panel Removal • Tilt panel forward an inch or two and remove the two wires from the door switch.
  • Page 29 Disassembly - Front Panel Removal • Remove front panel and set aside.
  • Page 30 Disassembly – Trap Duct Assembly • To remove trap duct: 1. Remove three ¼” hex head screws. 2. Grasp duct assembly and pull straight down & out.
  • Page 31 Disassembly – Trap Duct Assembly • Removal of trap duct assembly provides ample room to access belt, pulleys & some other components through the front of the machine.

  • Page 32: Blower Wheel

    Disassembly – Blower Wheel Removal: After removing trap duct assembly: 1. Remove two ¼” hex head screws and lift blower wheel cover from slot at bottom of housing. While holding motor shaft with channel locks, remove 9/16 nut holding blower wheel to shaft. Nut is reverse threaded.
  • Page 33 Disassembly – Drum Support & Drum Removal: 1. After removing trap duct assembly, remove 4- ¼” hex heads securing control assembly bracket. 2. Flip back control bracket so a to clear drum support. 3. Remove 4 additional ¼” hex heads (one from each arm of support).
  • Page 34 Disassembly – Drum Support & Drum Removal: 5. Lift drum support upwards slightly to release tab at each arm. 6. Reach behind drum support after releasing from side panel. With needle nose, squeeze back side of the four wire clamps (two on either side of drum support.
  • Page 35 Disassembly – Drum Support & Drum Removal: 8. Remove belt from pulleys if necessary. 9. Using belt as a handle lift drum and remove from machine.

  • Page 36: Rear Panel

    Disassembly – Rear Panel • To removal rear panel: 1. Remove control panel & dryer top panel. 2. Remove ¼” hex head screws around the perimeter of rear panel. 3. Remove ¼” hex head securing water valve to rear panel. 4.
  • Page 37 Disassembly – Rear Panel • Removal of rear panel (if dryer location permits) allows for additional room to access belt, pulleys & other components. • Provides for access to components that are only accessible from rear of machine, i.e. inlet thermistor. Inlet Thermistor...
  • Page 38 Components – UI/IMC Board The UI/IMC Board has 3 functions: 1) Allows for cycle and cycle modifier selection. 2) Provides information to the user. 3) Contains software instructions for general machine operation. Remove six 5/16” screws from control to separate it from the control panel housing.
  • Page 39 Components – UI/IMC Board The control itself, the control panel housing or escutcheon and what they call “button trees”, all come as separate components. Button Button Control Tree Tree Housing Contr...
  • Page 40 Components – UI/IMC Board Board Layout:...
  • Page 41 Components – Motor – (120vac Reversible Motor) To Remove Motor: 1. Using a flat blade screwdriver lift up and release spring clips at front and back of motor. 2. Lift tabs at top & bottom of power plug and pull out to release. 3.
  • Page 42 Components – Idler Pulleys Dryer uses a dual pulley system with a spring between the two Idler arms to provide for belt tension. (Front View)
  • Page 43 Components - Belt Standard dryer belt (WE12X10020) fed around drum, motor pulley and two idler pulleys. Rear View Rear View...
  • Page 44 Components - Belt Switch 1. Belt switch is mounted to the back side of the rear motor mounting plate. 2. With belt intact, switch is closed providing a path for Neutral to the motor circuit. 3. If belt breaks, idler arm falls and a “foot” on the arm depresses switch opening the Neutral circuit to the motor.
  • Page 45 Gas Valve • Standard three coil gas valve mounted to the burner bracket with three ¼” hex head screws. • At this point, GE parts breakdown shows no replacements for the coils. The complete gas valve is one component. (WE14X10109).
  • Page 46 Components - Gas Valve - Operation...
  • Page 47 Components - Gas Valve – LP Conversion • The dryer gas valve has capability of being converted to LP use and then back to natural gas. • All dryers are shipped from the factory set up for natural gas.
  • Page 48 Components – Ignitor The glo-bar ignitor is made of a ceramic material and therefore is extremely fragile. Care must be exercised when replacing. Removal / Replacement: 1. Begin by removing three ¼” hex head screws securing top of burner assembly. 2.
  • Page 49 Components – Ignitor Removal / Replacement: 3. With a stubby ¼” driver or socket, remove ¼” hex head securing ignitor to burner bracket. 4. Disconnect power plug to ignitor.
  • Page 50 Components – Ignitor Removal / Replacement: 5. After removing mounting screw, lift ignitor mounting bracket clip from burner bracket. 6. Remove ignitor from dryer burner assembly.

  • Page 51: Flame Detector

    Components - Flame Detector 1. The flame detector is secured to the burner tube with a tab and a ¼” hex head screw. 2. The flame detector should normally be closed. (0 Ω)

  • Page 52: Heater Assembly

    Components – Heater Assembly The heater and enclosure (minus the thermostats) comes as an assembly. (WE11X10025) Heater utilizes 240 volts. Each heater is @ 20Ω and draws 12 amps.
  • Page 53 Components - Steam Valve • The steam valve is a 120vac water valve that is attached to the rear panel in the upper left hand corner. • The steam valve can be checked using Service Mode Test t11.
  • Page 54 Components – Steam Nozzle • The steam nozzle is located inside the rear drum support. • The steam nozzle consists of a brass orifice and a fine filter screen. • If the orifice should become plugged or restricted, it should not be cleaned. •...

  • Page 55: Steam Nozzle

    Components – Steam Nozzle • The steam nozzle can be replaced without disassembly of the dryer. • Replacement can be performed inside the drum area. • A 7/16” or 11-mm nut driver can be used to unscrew the nozzle from the base.
  • Page 56 Components – Door Switch • The door switch opens and closes the neutral line to the motor circuit and informs the control whether the door is open or closed. • The door switch can be checked using Service Mode Test t10.

  • Page 57: Drum Light

    Components – Drum Light • On models so equipped, there is a 3vdc LED drum lamp that snaps into an opening in the top front of the drum support panel. • The LED receives it’s voltage directly from the control board. •...
  • Page 58 Components - Sensing Rods Sensor Rods are located on the back side of the drum support just below the lint trap.
  • Page 59 Components - Sensing Rods • Sensor Rods (Grey & Pink wires) have a disconnect plug behind the front panel. • Sensor rod moisture system can be checked using Service Mode Test t9.
  • Page 60 Components – Drum Rollers • The drum rides on four rubber rollers. • They are located on the lower, inside portion of the drum support panels. • All four rollers are the same part number. (WE01X10384)

  • Page 61: Hi-Limit Thermostat

    Components – Hi-Limit Thermostat • Under normal operating conditions this thermostat will remain closed at all times. It is used to prevent the heater assembly from getting too hot to safely operate. • When the hi-limit thermostat opens, it interrupts line voltage to the UI/IMC causing the board to lose power.
  • Page 62 Components – Inlet Back-up Thermostat • Under normal operating conditions this thermostat will remain closed at all times, allowing the heaters to cycle based on inlet and outlet thermistor values. • When the inlet backup thermostat opens, it interrupts line voltage to the heater or gas valve relays on the UI/IMC.
  • Page 63 Components – Outlet Back-up Thermostat • Under normal operating conditions this thermostat will remain closed at all times, allowing the heaters or gas valve to cycle based on inlet and outlet thermistor values. • When the inlet backup thermostat opens, it interrupts line voltage to the heater or gas valve relays on the UI/IMC.

  • Page 64: Inlet Thermistor

    Components – Inlet Thermistor • The inlet thermistor provides air inlet temperature to the UI/IMC board. The board uses this information to cycle the heaters or the gas valve on and off. • If an inlet thermistor fault is detected, the heaters or gas valve will cycle on the inlet and outlet backup thermostats.

  • Page 65: Outlet Thermistor

    Components – Outlet Thermistor • The outlet thermistor provides air inlet temperature to the UI/IMC board, the board uses this information to cycle the heaters and gas valve on and off. • If an outlet thermistor fault is detected, the heaters or gas valve will cycle on the inlet and outlet backup thermostats.
  • Page 66 Components – Thermistor Resistances Temperature/Resistance Chart: 50.0 (F) - 199.0K 69.8 (F) - 119.4K 75.2 (F) - 104.4K 80.6 (F) - 91.6K 86.0 (F) - 80.5K 89.6 (F) - 74.0K 95.0 (F) - 65.3K 100.4 (F) - 57.7K 105.8 (F) - 51.1K 111.2 (F) - 45.4K 116.6 (F) - 40.4K 120.2 (F) - 37.4K...

  • Page 67: Service Mode

    Service Mode • The Control must be in the Idle State in order to enter Service Mode. (System powered off. All LEDs off.) • The Following Key Sequence must be pressed: My Cycle -> Delay Dry -> My Cycle -> Delay Dry.
  • Page 68 Service Mode • The sequence must be completed in order. If there is any other key press or the keys are pressed out of order, the sequence must be started from the beginning. • Upon entering the Service Mode, there will be a beep and the control shall be in test selection mode display beginning with test number 1 (T1).
  • Page 69 Navigating Service Mode Tests • Rotating the knob counter clockwise shall decrement test number in the display. • Rotating the knob clockwise shall increment the test number in the display. • Once the test number is selected, pressing Start/Pause shall begin the selected test. •...

  • Page 70: Exit Service Mode

    Exit Service Mode • Field Service Mode shall time out after 5 minutes if there is no user activity. • Pressing the Power key or unplugging power to the machine will exit Field Service Mode.

  • Page 71: Service Mode Tests

    Service Mode Tests...
  • Page 72 Service Mode Tests (t1) Setting and Viewing Model Codes: Displaying Model Codes: When entering the test the User Interface Mode Type is displayed as a three digit decimal number. When Start key is pressed the Heater Type is displayed on the 7- segment display as "g"...
  • Page 73 Service Mode Tests (t1) Setting and Viewing Model Codes: Setting Model Codes: In the Dryer Model Codes (t1) test when Displaying Model Codes by simultaneously pressing the two buttons Temp & Level the dryer Model Codes can be set. First the current User Interface Mode Type is first displayed and can be adjusted as follows: *** Pressing key Level will wrap though valid User Interface Mode Type for the dryer and it increases until it wraps to the...
  • Page 74 Service Mode Tests (t1) Setting and Viewing Model Codes: Pressing the Start key will temporarily save the User Interface Mode Type. Next the current Heater Type selection is displayed as "g" Gas or "E" Electric. Pressing Temp or Level key will alternate the 7-segment display between the two Heater Type selections.
  • Page 75 Service Mode Tests (t1) Setting and Viewing Model Codes: Once the Heater Type and User Interface Mode have been successfully set in this test the unit will sound a valid tone and go to Idle Mode.
  • Page 76 Service Mode Tests (t2) UI Software Version Check: The control shall display the Software Version Number in decimal number system on the 7-segment display automatically alternating between: *** The 2-digit Major Software Version number and the LED for the Extended Tumble key will be turned on. *** The 2 digit Minor Software version number and the LED for the Damp Alert key will be turned on.
  • Page 77 Service Mode Tests (t3) XML Version Check: The SSD control shall display the XML Version Number in the decimal number system automatically alternating between: *** Displaying the 2-digit Major XML Version number and the LED for the Extended Tumble key will be turned on. *** Displaying the 2 digit minor XML version number and the LED for the Damp Alert key will be turned on.
  • Page 78 Service Mode Tests (t4) Error Codes: The control shall display the most recent error in the fault log upon entry into the display error codes test. If there are no errors in the fault log, then No Error Code (“000") shall be displayed on the 7-segment display. The control shall clear the displayed error from the fault log if the Start button is pressed during the display error codes test.

  • Page 79: Error Codes

    Error Codes...
  • Page 80 Service Mode Tests (t5) CRC Non-volatile Memory Test: The Control shall compute the 16-bit CRC of the non-volatile memory and compare it with the pre-computed 16-bit CRC that is stored in the non-volatile memory. The Control shall sound the Button Press Beep and display “EP" on the 7 segment display after successful 16-bit CRC comparison.
  • Page 81 Service Mode Tests (t6) User Interface Test: The Control shall turn on all indicators on the 7-segment display and turn on all LED indicators. A key test is active with this test, when a key is pressed (other than the Power Key) it will sound a Valid Key Tone.
  • Page 82 Service Mode Tests (t7) Outlet Thermistor Test: The Control shall display the Outlet Thermistor temperature in degrees Fahrenheit on the 7-segment display during the test. * The Control shall start the drum motor during the test. * Electric Units will turn on both the Inner and Outer Coil during the test. * Gas units shall turn on the Gas Valve and Igniter during this test.
  • Page 83 Service Mode Tests (t8) Inlet Thermistor Test: The Control shall display the Inlet Thermistor temperature in degrees Fahrenheit on the 7-segment display during the test. * The Control shall start the drum motor during the test. * Electric Units will turn on the Inner Coil during the test * Gas units shall turn on the Gas Valve and Igniter during this test.
  • Page 84 Service Mode Tests (t10) Door Open / Closed Test: The control shall display “dc” if the door as closed or “do” if door is opened.
  • Page 85 Service Mode Tests (t11) Water Valve Test: * The control shall turn on the water valve relay and the drum motor when the start button in pressed (“On” will be displayed). When the start button is pressed again the relay will be turned off (“OFF” displayed). * A beep shall be sounded every time the start button is pressed.
  • Page 86 Service Mode Tests (t12) Restore EEPROM Values: If the start button is pressed the default EEPROM values will be restored except; Heater Type Mode and User Interface Type Mode which will remain unchanged. If restored properly then “EP” will be displayed on the seven-segment display.
  • Page 87 Service Mode Tests (t13) Drum Test: The control shall start the drum rotation in the forward direction for 30 seconds and the 7-segment display will display “On”. If the test is ran on models which support the detangle feature, a pause duration including a six second drum motor reversal delay (to ensure an empty drum reverses) will occur.
  • Page 88 Schematic (Electric)
  • Page 89 Schematic (Gas)
  • Page 90 END OF PRESENTATION THANK YOU FOR YOUR ATTENTION …….

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