GE GFDN240ELWW Service Manual Download Page 43

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Disassembly – Moisture Sensor

The dryer will signal when the clothes are at 17% moisture level

equipped with a damp signal that has been selected.
Approximate values for dryness level:
Damp = 17%
Less dry = 12%
Dry = 2-6%
More dry = <2%

Plug connecting sensor

rods to J7 on control

board.

Summary of Contents for GFDN240ELWW

Page 1: ...S2011 GE HA Dryer Upgrade GFDS350 Series GE 7 5 cu ft stainless steel capacity dryer with Steam Options Models GFDS350ELWW GFDS350GLWW GFDS355ELMV GFDS355GLMV GFDS355ELMS GFDS355GLMS Service Guide 31 9209 ...

Page 2: ...e GFDN240 Series GE 7 0 cu ft stainless steel capacity dryer Models GFDN240ELWW GFDN240GLWW GFDN245ELMS GFDN245GLMS GFDN245ELMV GFDN245GLMV NOTE 240 series is the same as the 350 series but without steam a slightly smaller drum ...

Page 3: ... 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 4: ...afety Glasses must be ANSI Z87 1 2003 compliant Safety Glasses must be ANSI Z87 1 2003 compliant Prescription Safety Glasses Prescription Safety Glasses Plano Type Safety Glasses Plano Type Safety Glasses Steel Toe Work Boot Steel Toe Work Boot Electrically Rated Glove and Dyneema Cut Resistant Glove Keeper Electrically Rated Glove and Dyneema Cut Resistant Glove Keeper Brazing Glasses Brazing Gla...

Page 6: ...2011 6 Model Serial The full model serial tag is located on the front panel inside the door opening There is also a barcode sticker that displays the model serial and is located on the left front of the top panel ...

Page 9: ...ide Pedistal Stacked Dryer can be stacked on the washer Kit for stacking dryer over washer is not included with the washer Order GEFLSTACK Machines can be stacked on a pedestal These can be ordered separately SPSD157JMV Vermillion SPSD157JMS Silver SPSD157JWW White Adobe Acrobat Document Stacking Instructions Open in Normal View ...

Page 10: ...e cold water supply Since the washer must also connect to the cold water a Y connector is inserted to allow both inlet hoses to make that connection at the same time NOTE Use the new inlet hoses Y connector provided never use old hoses Hose kit Long short hoses washers Y connector WE25M53 ...

Page 11: ...f the cabinet STANDARD REAR EXHAUST Dryer Exhaust to the rear of cabinet for Gas and Electric models SIDE VENTING Dryer Exhaust to right of cabinet for Electric models only Dryer Exhaust to left of cabinet for Gas and Electric models BOTTOM VENTING Dryer Exhaust to the bottom of cabinet for Gas and Electric models ...

Page 12: ...t wait 10 seconds Plug the unit back in Within 30 seconds after plugging in the unit press the Start Pause button 4 times within 3 seconds with the door open To exit Demo Mode Repeat the above sequence Note In the Demo Mode the control will proceed through the selected cycle but will not actually activate any components ...

Page 13: ...he STEAM REFRESH Cycle the unit will beep and display Garments Ready and 0 00 If the unit is not turned off or if the door is not opened the dryer will continue to tumble for 30 minutes At the end of 30 minutes it will display 0 00 and Cycle Complete NOTE When STEAM REFRESH is selected EXTENDED TUMBLE will automatically turn on and cannot be turned off A single extremely light fabric item may need...

Page 14: ...s Steam Dewrinkle For use with larger loads than STEAM REFRESH Ideal for loads left in dryer for an extended time Selecting a larger cycle than needed e g selecting Large Load for a half full dryer may result in excessive wetting of clothes ...

Page 15: ...e represents only a reminder and does not always appear when the filter needs cleaning The filter should be cleaned after every drying cycle is complete This message will disappear after the START button is pressed Message may appear even though you may have already cleaned the filter ...

Page 16: ...tal energy consumption of specific dryer cycles by adjusting certain heat settings and extending dry times NOTE Cycle times will change when e Dry is selected This cycle can be used with DELICATES ACTIVE WEAR EASY CARE NORMAL MIXED LOADS and COTTONS ...

Page 17: ...ck The drying rack is designed for use with the TIMED DRY cycles Use with sensor cycles may result in damp items or extended cycle times Do not use this drying rack when there are other clothes in the dryer that are not placed on the rack ...

Page 19: ...way through before starting Handle parts carefully to avoid scratching the paint Set screws down by their related parts to avoid using them in the wrong places Provide a non scratching work surface for the door Normal completion time to reverse the door swing is 30 60 minutes Adobe Acrobat Document Door Reversal Instructions Open in Normal View ...

Page 20: ... Remove the Phillips head screw that attaches the control panel rear trim Pull the trim piece backward and remove Note It may be helpful to place a putty knife along the top seam between the trim and the control panel then tap lightly backward ...

Page 21: ...1 Disassembly Top Panel 2 Remove the 2 Phillips head screws that attach the top panel to the cabinet 3 Raise the front of the top panel approximately 3 inches then pull forward to clear the rear tabs Lift off top panel ...

Page 22: ...Copyright 2011 22 Disassembly Control Panel Removal of the control panel provides access to the control board assembly To remove the control panel 1 Remove the cycle selector knob by pulling outward ...

Page 26: ...t 2011 26 Electronic Control System To remove the electronic control board 1 Set the control panel in the service position 2 Remove the 6 Phillips head screws that attach the selector board to the control panel ...

Page 27: ...Control System To remove the electronic power board 1 Remove the top panel 2 Disconnect 11 wires and wiring harnesses from the power board 3 Remove the 2 Phillips head screws to release the power board from the power board bracket ...

Page 28: ...Electronic Control System Model Select plug Note If replacing the electronic control transfer the model selector harness at J5 to the replacement control board in the same location as on the original J5 Model Select Plug ...

Page 30: ...anel 2 Disconnect the drum lamp door switch wire harness and the sensor rod wire harness connected to the power board 3 Remove the 2 Phillips head screws from the front panel bracket 4 Remove 4 Phillips head screws from the front panel bracket 5 Lift the bracket out of the hinges and set aside Disconnect ...

Page 31: ... 31 Disassembly Front Panel 6 Loosen several turns but do not remove the 2 Phillips head screws from the bottom of the front panel 7 Remove 2 Phillips head screws from the top of the front panel Bottom of Front Panel ...

Page 32: ...ht 2011 32 Disassembly Front Panel 8 Tilt the top edge of the front panel out and press on the John Guest connector collar to release the water line 9 Lift front panel from the bottom two screws and set aside ...

Page 33: ...ted on the back side of the front panel To remove the air duct assembly 1 Remove the front panel 2 Remove the single Phillips head screw that attaches the sensor ground wire to the cabinet Sensor Rod Ground Wire NOTE The trap duct felt seal can be replaced by extracting the seal from the channel located on the air duct assembly Trap Duct Felt Seal ...

Page 34: ...that attach the air duct assembly to the front panel 4 Grasp each side of the air duct assembly and unsnap the air duct from the front panel Caution Upon reassembly ensure that the door switch drum light and sensor wiring are retained and routed properly to avoid contact with the drum ...

Page 35: ...rasp each side of the air duct assembly and unsnap the air duct from the front panel at the points indicated Caution Upon reassembly ensure that the door switch drum light and sensor wiring are retained and routed properly to avoid contact with the drum ...

Page 36: ... 4 drum slides Two white outer slides are used as guides and 2 dark color center top slides are used to support the weight of the drum When replacing the slides the dark colored support slides must be used to replace the top support slides Guide slides may also be replaced with support slides Caution Do not replace the center top support slides with the white guide slides Damage to the dryer will ...

Page 37: ...y Drum Slides To Remove Drum Slides Remove top panel control panel then tilt the front panel outward 1 Grasp individual slides at the non tabbed end and pry up slide 2 Release slide from tab on duct assembly and remove Tabbed end ...

Page 38: ...ated inside the front of the dryer on the right side of the air duct assembly 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 Replace a plugged or restricted steam nozzle ...

Page 39: ...replaced without disassembly of the dryer Replacement can be performed by opening the dryer door to access the steam nozzle A 7 16 or 11 mm nut driver can be used to unscrew the nozzle from the air duct assembly Note The replacement steam nozzle will have thread lock pre applied to the screw threads ...

Page 40: ... duct assembly 2 Press on the John Guest connector collar and release the water line from the steam nozzle connector 3 Remove the Phillips head screw that attaches the nozzle to the nozzle housing 4 Pull the nozzle connector out of the housing John Guest Connector Collar ...

Page 41: ... locking tabs 1 on each side When the dryer door is closed the switch will complete the drum motor circuit allowing dryer operation When the door is open the switch will open the drum motor circuit interrupting dryer operation Opening the dryer door will also cause the door switch to close the drum light circuit allowing the drum light to be energized ...

Page 42: ...e Sensor The moisture sensing circuit consists of 2 sensor rods They are mounted beneath the lint filter on the drum side of the air duct Operation of the moisture sensor can be checked by using service test mode T07 Moisture Sensor Rods 2 ...

Page 43: ...r The dryer will signal when the clothes are at 17 moisture level if equipped with a damp signal that has been selected Approximate values for dryness level Damp 17 Less dry 12 Dry 2 6 More dry 2 Plug connecting sensor rods to J7 on control board ...

Page 44: ...ilizes a low voltage capacitor that charges to approximately 5 VDC when the circuit is open and discharges to less than 1 VDC when the circuit is shorted When wet clothes tumble across the two rods the clothes create a very low resistance between the rods which discharges the capacitor As the clothes become dry their resistance value increases and the charge across the capacitor builds to approxim...

Page 45: ...xtends from under the motor pulley over the top of the idler pulley and around the perimeter of the dryer drum See belt diagram Belt tension is maintained by the idler pulley and driven by a pulley attached to the motor shaft Idler Pulley Idler Arm Pulley shown in locked position ...

Page 46: ...to the right and lock the idler arm on the top corner of the motor bracket to release belt tension 3 Remove the belt from the motor pulley and remove through the front of the dryer Pulley shown in locked position with motor cover removed WARNING The idler arm is under high tension To prevent injury do not let the idler arm snap back Idler Arm Locking Tab ...

Page 47: ...he top corner of the motor bracket 3 Place the belt in position around the center of the drum through the front of the dryer 4 Place the belt in position around the motor pulley see diagram release the idler pulley from the motor bracket and guide onto the belt Note Check to make sure the belt is in place and not twisted before installing the top and front panels View from rear of dryer ...

Page 48: ...belt switch activated by the idler arm is fastened to the motor bracket by 2 screws Should the drive belt break the belt switch will open the drive motor circuit interrupting dryer operation Note The drum lamp will operate with an open belt switch ...

Page 49: ...ler arm If the drive belt breaks or comes off the idler pulley the belt switch opens power to the motor interrupting dryer operation The drum lamp will operate with an open belt switch To remove the belt switch 1 Remove the motor and blower wheel 2 Remove the 2 Phillips head screws that attach the belt switch to the motor base plate Switch shown in closed position ...

Page 50: ...Copyright 2011 50 Drum The drum is made of 304 stainless steel and has three replaceable baffles The drum rotates counterclockwise as viewed from the front at a speed of 47 to 51 rpm Drum Baffle Screws ...

Page 52: ...x screws The bearing can be removed by pulling it off the shaft The drum shaft and bearing fit into the bearing retainer in the center of the heater assembly electric models or diffuser assembly gas models To access the drum shaft and bearing it is necessary to remove the drum Drum Shaft Drum Bearing O Ring ...

Page 53: ...rap Assembly The drum shaft and bearing fit into the bearing retainer in the center of the heater assembly electric models or diffuser assembly gas models The assembly is held to the back side of the heater housing or diffuser assembly by four screws ...

Page 54: ...se plate The assembly is located to the left of the motor To remove the idler assembly 1 Remove the drum WARNING The idler arm is under high tension To prevent injury do not let the idler arm snap back 2 Release tension on the idler assembly by unlocking the idler arm from the top right corner of the motor support ...

Page 56: ...ter inlet valve can be checked by using service test mode T07 The water inlet valve is located inside the cabinet at the bottom right hand corner The water valve is enclosed under a metal cover The cover is attached to the dryer with a Phillips head screw and a tab located at the bottom Water Valve Cover ...

Page 57: ...Copyright 2011 57 Water Valve To replace the inlet water valve 1 Remove the drum 2 Remove the 2 Phillips head screws that hold the cover to the cabinet and remove the cover by lifting up and out ...

Page 58: ...dual water that may escape from the valve fill hose and tubing 3 Disconnect the water inlet hose 4 Disconnect the coil wiring 5 Press the John Guest connector collar and remove the water outlet tubing Water Inlet Hose Disconnect Water Outlet Tubing John Guest Connector Collar ...

Page 59: ...reset overload protector The overload protector is an internal component of the motor and cannot be replaced separately The motor contains a centrifugal switch that serves three purposes It disengages the motor start winding 6 engages the motor run winding 8 and closes the circuit contacts 1 to 3 for the heat source ...

Page 60: ...t 2011 60 Motor Blower Wheel The blower wheel is held to the motor shaft with a 15 16 in 24 mm molded nut Motor resistance values Start winding 2 3 ohms Run winding 2 3 ohms Turn nut Counterclockwise To remove ...

Page 61: ... 61 Motor Blower Wheel To remove the motor 1 Disconnect power to the unit 2 Remove the drum See Drum 3 Remove the Phillips head screw and the thermostat moisture shield from the front frame Thermostat Moisture Shield ...

Page 63: ... the motor bracket 6 Disconnect the motor wire harness 7 Disconnect the wires attached to the belt switch 8 Remove the single vertical and single horizontal Phillips head screws that attach the motor bracket and motor support to the chassis Motor Support Belt Switch Disconnect ...

Page 65: ...e bottom of the chassis Slide the motor bracket back until the bracket tabs clear the slots in the chassis Remove the motor and blower wheel assembly from the chassis Note When installing the motor and blower wheel assembly ensure that the 2 rear tabs on the motor bracket are inserted into the slots in the motor support and the 2 front tabs on the motor bracket are inserted into slots provided in ...

Page 66: ...Copyright 2011 66 Motor Blower Wheel 12 Hold the motor shaft from turning and use a 15 16 in 24 mm socket to remove the blower wheel from the motor shaft M otor Shaft 1 5 1 6 i n M o l d e d N u t ...

Page 67: ...rminals at the 9 30 o clock position After installing the motor ensure both moisture shields are properly installed 13 Compress and remove the rear motor strap from the motor support 14 Loosen the two 1 4 in hex head screws on the front motor strap 15 Lift and remove the motor from the motor bracket Front Motor Strap Rear Motor Strap ...

Page 68: ...ng is attached to the dryer with 7 screws and 3 tabs To remove the blower housing 1 Remove the motor and blower wheel 2 Remove the single Phillips head screw located inside the outlet of the exhaust pipe Remove the exhaust tube from the blower housing ...

Page 69: ...ng 3 Remove the 7 Phillips head screws that attach the blower housing to the base plate 4 Slide the blower housing to the right Note When reinstalling the blower housing ensure the 3 tabs are inserted into the front base plate Tabs ...

Page 70: ...rum It consists of inner and outer open wire elements each formed in a zigzag pattern fastened to a single housing The inner element consists of 2 elements wired in parallel with each The inner element and the outer element are controlled by separate relays on the control board ...

Page 71: ... the outer element draws approximately 12 5 amps at 240 VAC The outer element has a resistance value of 19 2 Ω When energized the 2 inner elements draw approximately 12 5 amps at 240 VAC The 2 inner elements have a combined resistance value of 19 2 Ω ...

Page 72: ...heater assembly it is necessary to remove the drum Lead wires can then be removed from the elements inlet safety thermostat inlet control thermistor and high limit thermostat The heater assembly is attached to the cabinet with 4 Phillips head screws ...

Page 73: ...opyright 2011 73 Heater Assembly Heater is available in the following manners 512 Heater housing asm includes hi limit and bearing retainer WE11M42 513 Heater housing WE11M43 514 Mica heater asm WE11M32 ...

Page 75: ...Copyright 2011 75 Heater Assembly 3 Rotate mica assembly slightly counterclockwise to align numerous gaps on mica surface with tabs on housing 4 Lift mica heater assembly from housing Tab Gap Tab Gap ...

Page 76: ...rner assembly consists of the gas valve coils gas valve burner and inlet pipe Burner assembly can be converted to LP gas by installing a WE25X217 Conversion Kit Burner assembly can be converted back to natural gas by installing a WE25X218 Conversion Kit ...

Page 77: ...oil safety and booster coils combined and a single main coil are located on top of the gas valve in front of the combustion chamber opening All coils can be replaced separately Gas valve coil assembly resistance values Safety coil terminals 1400 Ω Booster coil terminals 580 Ω Main coil terminals 1300 Ω ...

Page 79: ...he position of the locator pins inserted in the coil bracket 5 Remove the 2 Phillips head screws that attach the coil bracket to the valve body 6 Lift the bracket vertically Lift coils to remove Note Upon reassembly ensure the locator pins are inserted into the holes provided in the coil bracket ...

Page 80: ... right front corner of the dryer cabinet To remove the gas valve 1 Shut off the gas supply to the unit 2 Disconnect gas supply from the burner inlet pipe 3 Remove the drum 4 Remove 2 Phillips head screws from the front frame and the Phillips head screw from the rear of the gas valve cover ...

Page 81: ...ss and the 2 wires from the flame detector 6 Disconnect the coil wire harness from each coil 7 Remove the 2 Phillips head screws that attach the gas valve bracket to the dryer floor 8 Pull the bracket toward the front of the dryer to disengage tabs from dryer floor ...

Page 82: ...the 3 Phillips head screws that attach the gas valve to the gas valve bracket Caution The ignitor is very fragile To prevent breaking the ignitor care must be taken when installing the gas valve Note Upon reassembly ensure the gas valve bracket is inserted under the 2 tabs located in the dryer floor ...

Page 83: ...stion chamber opening and has a maximum rating of 4 amps The ignitor has an approximate resistance value of 300 to 500 Ω The ignitor is attached to the gas valve bracket with a Phillips head screw To access the ignitor it is necessary to remove the burner assembly See Gas Valve steps 1 through 8 ...

Page 84: ...e of the combustion chamber It is necessary to remove the flame detector moisture shield to remove the flame detector To remove the flame detector 1 Remove the drum 2 Remove 2 Phillips head screws from the front frame and the Phillips head screw from the rear of the gas valve cover ...

Page 85: ...tor 4 Remove the Phillips head screw that holds the flame detector to the combustion chamber 5 Remove the flame detector from the tab at the bottom Note Upon reassembly ensure the tab at the bottom of the flame detector is inserted into the slot located on the combustion chamber ...

Page 86: ...t of the inlet control thermistor On gas models the inlet safety thermostat is located on the right side of the diffuser above the inlet control thermistor The thermostat monitors incoming air temperature If the thermostat reaches a temperature beyond its maximum temperature rating it will trip and disable power to the heating elements electric models or burner assembly gas models Electric Model S...

Page 87: ...ully On gas dryers the inlet safety thermostat opens at 300 F and will automatically reset at 260 F Electric Model Shown To remove the inlet safety thermostat 1 Remove the drum 2 Disconnect the 2 wires from the inlet safety thermostat 3 Remove the Phillips head screw that attaches the inlet safety thermostat to the heater assembly or diffuser 4 Lift and slide the thermostat from the heater assembl...

Page 88: ...fety thermostat On gas models the inlet control thermistor is located on the right side of the diffuser below the inlet safety thermostat The thermistor monitors incoming air temperature and will respond to temperature changes of 3 F The thermistor relays this information to the control board The thermistor has a negative coefficient As the temperature increases the thermistor s resistance decreas...

Page 89: ...associated with the inlet control thermistor can initiate error codes E3 and E4 To remove the inlet control thermistor 1 Remove the drum 2 Disconnect the 2 wires from the inlet control thermistor 3 Remove the Phillips head screw that attaches the inlet control thermistor to the heater assembly or diffuser 4 Lift and slide the thermistor from the heater assembly or diffuser ...

Page 90: ...ntrol thermistor is located on the lower rear area of the blower housing It is below the moisture shield and the outlet control backup thermostat The outlet control thermistor measures outgoing air temperature and will respond to temperature changes of 3 F The thermistor relays this information to the control board ...

Page 91: ...he outlet control thermistor can initiate error codes E5 and E6 To remove the outlet control thermistor 1 Remove the drum 2 Remove the Phillips head screw and the thermostat moisture shield from the front frame 3 Disconnect the 2 wires from the outlet control thermistor 4 Remove the 2 Phillips head screws that attach the outlet control thermistor to the blower housing ...

Page 92: ...ter Dryer goes into this fall back mode when it has determined that it can no longer rely on thermistor temperature to control applied heat This can occurs when a thermistor cannot sense heat failed open or always read hot failed closed The fall back mode consist of reducing the maximum heating power typically 50 so that thermostats are fast enough to shut down heater in case of overheating On the...

Page 93: ...is located on the upper rear area of the blower housing It is below the moisture shield and above the outlet control thermistor The outlet control backup thermostat monitors the outgoing air temperature If the thermostat reaches a temperature beyond its maximum temperature rating it will trip and disable power to the heating elements or burner assembly ...

Page 94: ...t 155 F To remove the outlet control backup thermostat 1 Remove the drum 2 Remove the Phillips head screw and the thermostat moisture shield from the front frame 3 Disconnect the 2 wires from the outlet control backup thermostat 4 Remove the Phillips head screw that attaches the outlet control backup thermostat to the blower housing ...

Page 95: ... on the top right area of the heater housing On gas models the high limit thermostat is located on the upper right side of the diffuser The high limit thermostat monitors incoming air temperature If the high limit thermostat trips it will take out the L1 circuit to the motor which in turn will disable the heat source ...

Page 96: ...F and will automatically reset at 250 F To remove the high limit thermostat 1 Remove the drum 2 Disconnect the 2 wires from the high limit thermostat 3 Remove the Phillips head screw that attaches the high limit thermostat to the heater assembly or diffuser 4 Slide the thermostat from the heater assembly or diffuser ...

Page 97: ... number t01 Rotating the knob counter clockwise CCW shall decrement the test number in the display Rotating the knob clockwise CW shall increment the test numbers in the display Once the test number is selected pressing Start Pause shall begin the selected test During a test pressing power button shall terminate that test and bring the control to the test selection mode test number is displayed on...

Page 102: ...opyright 2011 102 Strip Circuit Checking Thermostats Remove Power Measure resistance between J2 Pin 3 J8 If all thermostats are intact reading should be 0Ω M e t e r L e a d M e t e r L e a d J8 J2 Pin 3 ...

Page 103: ...Copyright 2011 103 Strip Circuit Belt Switch Remove Power Measure resistance between J2 Pin 4 Plug If belt switch motor are intact reading should be 3Ω J2 Pin 4 Plug Meter Lead Meter Lead ...

Page 106: ...011 106 Strip Circuit Door Switch J1 3 Remove Power Measure resistance between J1 Pin 3 Neutral Plug The resistance should read 0Ω with the door closed and Ω with the door open Plug J1 Pin 3 M eter Lead Meter Lead ...

Page 108: ...Copyright 2011 108 Strip Circuit Strip Circuit Water Valve Remove Power Measure resistance between J20 Plug The resistance of the valve coil should read 400Ω Meter Lead M eter Lead J20 Plug ...

Page 109: ... Strip Circuit Strip Circuit Door Switch J1 3 Remove Power Measure resistance between J1 Pin 3 Neutral Plug The resistance should read 0Ω with the door closed and Ω with the door open Plug J1 Pin 3 M eter Lead Meter Lead ...

Page 110: ...Copyright 2011 110 Strip Circuit Strip Circuit Belt Switch Remove Power Measure resistance between J2 Pin 4 Plug If belt switch is intact reading should be 3Ω J2 Pin 4 Plug Meter Lead Meter Lead ...

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