GE GDWT668V Service Manual
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GE GDWT668V Service Manual

GE GDWT668V Service Manual

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See also: Technical & Service Manual
New Top Control Door Design Platform
GDW T668V
GDW T768V
PDW T560V
PDW T565V
PDW T380V
PDW T180V
CDW T980V
CDW T280V
ZBD8920V
ZBD7920V
ZBD6920V

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Summary of Contents for GE GDWT668V

  • Page 1 New Top Control Door Design Platform GDW T668V GDW T768V PDW T560V PDW T565V PDW T380V PDW T180V CDW T980V CDW T280V ZBD8920V ZBD7920V ZBD6920V...
  • Page 2 Presenter and Event 8/2/2011...
  • Page 3 Presenter and Event 8/2/2011...
  • Page 4 IMPORTANT SAFETY NOTICE The information in this presentation is intended for use by individuals possessing adequate backgrounds of electrical, electronic, & mechanical experience. Any attempt to repair a major appliance may result in personal injury & property damage. The manufacturer or seller cannot be responsible for the interpretation of this information, nor can it assume any liability in connection with its use.
  • Page 5 GE Factory Service Employees are required to use safety glasses with side shields, safety gloves & steel toe shoes for all repairs Plano Type Safety Glasses Electrically Rated Glove and Dyneema ® Cut Dyneema ® Cut Resistant Glove Keeper Resistant Glove...
  • Page 6 Monogram Cafe Profile Presenter and Event 8/2/2011...
  • Page 7 New Look Control Designs - GE Plastic tactile buttons LED indicators with painted metallic finish NOTE: Graphics/Text on top controls are not on the top layer of surface to prevent being exposed to the environment. GE Title or job number /...
  • Page 8 New Look Control Designs - Profile Chrome tactile buttons. White “SSD” White LED’s only visible White LED’s (Seven segment display) when illuminated GE Title or job number / 8/2/2011...
  • Page 9 New Look Control Designs - Cafe Plastic tactile buttons Note Blue LED’s Text with painted metallic finish GE Title or job number / 8/2/2011...
  • Page 10 New Look Control Designs - Monogram Plastic tactile with chrome finish and white Silk screen text Chrome collar White SSD LED indicator 10 / GE Title or job number / 8/2/2011...
  • Page 11 Auto w/o added heat has 6 segments and with 11 / added heat has 9 segments GE Title or job number / 8/2/2011...

  • Page 12: Features - Cycles

    Drain: 7 sec. – 105 sec. (Final Rinse) *NOTE: Fill: 16 sec. - 65 sec. Dry: 8 min. (Speed cycle) up to 60 min. (Plastic Cycle) 12 / GE Title or job number / * Times Vary based on cycle, turbidity, temperature. 8/2/2011...

  • Page 13: Front Led Indicator

    Front LED indicator Bi-colored LED LED amber during cycle LED green when cycle is finished (Illustration- Not actual product) 13 / GE Title or job number / 8/2/2011...
  • Page 14 Lower rack - roller Lower rack roller wheel Cross section of door liner New geometry of lower wheel provides a tighter fit to door liner for better rack stability 14 / GE Title or job number / 8/2/2011...
  • Page 15 Lower rack - roller Spread roller tabs outward Roller locks onto rack 15 / GE Title or job number / 8/2/2011...
  • Page 16 Upper rack - slide Front view with rack pushed in. Upper rack extended outward NOTE: Removing front end caps will not release rack 16 / GE Title or job number / 8/2/2011...
  • Page 17 Upper rack - slide (Right side) To remove upper rack assembly, press “down” to disengage lever on left side and “up” on the right side. Pull rack assembly forward and out 17 / GE Title or job number / 8/2/2011...
  • Page 18 Upper rack - slide Tracks are “riveted” in place and not replaceable (View from outside of tub) 18 / GE Title or job number / 8/2/2011...
  • Page 19 Upper rack - slide Spread retainer clips outward Slide basket rearward out of retainers 19 / GE Title or job number / 8/2/2011...
  • Page 20 Upper rack - slide Pry end cap out of slide With the end cap removed, take care when sliding bearing track out as bearings will fall loose. 20 / GE Title or job number / 8/2/2011...
  • Page 21 Upper rack - shower 1. With rack upside down, remove ¼ hex head screw 2. Remove other ¼ hex head 3. Lift funnel off 4. Release support bracket in rear. 21 / GE Title or job number / 8/2/2011...
  • Page 22 Float Switch Dome Float dome is removed by releasing locking tabs by squeezing or with small screwdriver and lifting up. Float is accessed and can be lifted off. 22 / GE Title or job number / 8/2/2011...
  • Page 23 Lower Shower & Filter • Gently lift and rotate lower spray arm counterclockwise to remove. • Rotate hub nut counterclockwise to remove. • Remove fine filter by lifting up. 23 / GE Title or job number / 8/2/2011...
  • Page 24 Sump Cover Shower tube sets in a clip mounted to the center rear of the tub. Lift sump inlet cover straight off to gain access to debris in sump 24 / GE Title or job number / 8/2/2011...
  • Page 25 • Lift straight up and out. • Coarse filter then lifts off. Sump filter is secured to retainer ring as noted in photo. NOTE: (Sump removed for better view) 25 / GE Title or job number / 8/2/2011...
  • Page 26 Sump Sump filter retainer is loose when sump is removed Sump mounted to tub with clamp on top. 26 / GE Title or job number / 8/2/2011...
  • Page 27 Turbidity Sensor held in place with clamp. and measuring the quantity of that Note key slot for correctly positioning in sump light. Note: “Turbidity” is defined as the amount of suspended particles 27 / suspended in a fluid. GE Title or job number / 8/2/2011...

  • Page 28: Turbidity Sensor - Calibration

    Start/Reset pad 100 times. 2. That will flag the board to calibrate the sensor during the next full dishwasher cycle. Failure of the turbidity sensor will result in maximum wash/rinse cycles. 28 / GE Title or job number / 8/2/2011...
  • Page 29 Testing the Control Circuit When the control is checking the turbidity of the water, a pulsed 5 volt DC signal is sent to the emitter. If you check the DC voltage at the control or turbidity sensor you will see a fluctuating DC voltage of approximately 2 volts DC.
  • Page 30 Testing the Thermistor Circuit The thermistor’s resistance has a negative temperature coefficient. (NTC) At 75º F, the resistance is approximately 9.9KΩ At 140º F, the resistance is approximately 2.8KΩ Copyright General Electric 2010...

  • Page 31: Drain Pump

    Drain Pump Drain pump secured to sump with clamp Drain pump has a “check valve” at both inlet and outlet ports. Final drain time appx 105 seconds. 31 / GE Title or job number / 8/2/2011...
  • Page 32 Drain Pump Check valve removed by simply pulling forward Outlet check valve 32 / GE Title or job number / 8/2/2011...

  • Page 33: Motor Assembly

    Motor Assembly Motor/pump assembly mounted with hanger facing front and connected to sump with clamp (Viewed from underneath with dishwasher on its back) 33 / GE Title or job number / 8/2/2011...
  • Page 34 Motor Assembly 10પF Start capacitor Mounted with 1 screw 34 / GE Title or job number / 8/2/2011...
  • Page 35 Heater Heating Element connections in rear of machine 16 Ω resistance value 35 / GE Title or job number / 8/2/2011...
  • Page 36 Thermostat located in the front behind the toe kick panel and access panel Remove ¼ hex head screws Thermostat Opens at 165 F Resets at 150 F Heat Shrink Replacement part 36 / GE Title or job number / 8/2/2011...
  • Page 37 Door 37 / GE Title or job number / 8/2/2011...

  • Page 38: Outer Door Panel

    Outer Door Panel (View from underneath) To remove outer door panel, remove the two ¼ hex heads screws located in both lower corners 38 / GE Title or job number / 8/2/2011...
  • Page 39 Outer Door Panel Remove (10) T15 torx screws from around inner door panel. NOTE: (different length with screws. 4 long/6 short) 39 / GE Title or job number / 8/2/2011...
  • Page 40 New Look Inner Door Panel 40 / GE Title or job number / 8/2/2011...
  • Page 41 Outer Door Panel • HMI control is mounted to outer door panel • Remove Phillips head screw and remove metal shield to access 41 / GE Title or job number / 8/2/2011...
  • Page 42 Disconnect “Model Select Plug” (re-use) plugged in to. • Remove single Phillips head screw If the model select plug is not installed, the control will produce a constant and loud continuous tone. 42 / GE Title or job number / 8/2/2011...
  • Page 43 Outer Door Panel Lift top control housing straight up and out of the outer door panel. 43 / GE Title or job number / 8/2/2011...
  • Page 44 H.M.I. Control Remove 2 Phillips head screws for HMI control 44 / GE Title or job number / 8/2/2011...
  • Page 45 H.M.I. Control Push buttons and rubber inlay are replaced individually as shown. (Buttons are “keyed” to prevent misplacement) 45 / GE Title or job number / 8/2/2011...

  • Page 46: Handle Removal

    Handle Removal Left Side – Remove ¼ hex head screw Right Side – Remove ¼ hex head screw Note: HMI board must be removed to access screw on left 46 / GE Title or job number / 8/2/2011...
  • Page 47 Outer Door Panel – Handle Removal Full length view 47 / GE Title or job number / 8/2/2011...
  • Page 48 Indicator Lens Front right side The lens is replaced by prying the square retaining clip off the back side. 48 / GE Title or job number / 8/2/2011...

  • Page 49: Door Components

    Door Components Door Lock Switch Main control Vent Fan Detergent/Rinse Aid dispenser 49 / GE Title or job number / 8/2/2011...

  • Page 50: Door Switch

    Door Switch Door switch is held in place with 3 Phillips head screws 50 / GE Title or job number / 8/2/2011...
  • Page 51 Door Switch - Strike Door strike held in place with single T15 screw 3 screws removed Remove screw and slide strike assembly forward and out NOTE: No adjustment Door Switch removed 51 / GE Title or job number / 8/2/2011...
  • Page 52 Over-Temperature TCO • TCO is held in place with a single T15 torx screw. • One Shot - Opens at 250 F • Breaks L1 52 / GE Title or job number / 8/2/2011...

  • Page 53: Active Vent

    Active Vent • Held in place with 1 screw • Slides to right off vent flap Ω • • 12VDC • CW- closes vent • CCW – opens vent 53 / GE Title or job number / 8/2/2011...

  • Page 54: Vent Fan

    Vent Fan Remove 4 Phillips head screws Pull vent housing and fan straight out 54 / GE Title or job number / 8/2/2011...
  • Page 55 However, the time varies. Fan will run as little as 1 minute or up to 15 minutes w/o heated dry. Fan could be on for 30- 50 minutes in some heated dry cycles. 55 / GE Title or job number / 8/2/2011...

  • Page 56: Detergent/Rinse Aid Module

    Detergent/Rinse aid module Remove 6 screws to replace detergent/rinse aid module Can be cycled and tested in “service mode” 56 / GE Title or job number / 8/2/2011...

  • Page 57: Inner Door

    Inner Door • Door cable connects to hinge on both sides Door tension adjustments are made at • Roller held in place with single screw end of cable wire or frame support 57 / GE Title or job number / 8/2/2011...
  • Page 58 Inner Door - Removal • Remove 4 Phillips head screws. 2- each side • Lift off while noting any wiring 58 / GE Title or job number / 8/2/2011...
  • Page 59 Inner Door - Hinge • Door panels removed • Ensure that door cable is disconnected • Remove single T25 torx screw. 59 / GE Title or job number / 8/2/2011...
  • Page 60 If a situation required, the entire door assembly could be removed from dishwasher by removing the single T25 torx screw and cable on each side. NOTE: Components mounted to door and associated wiring 60 / GE Title or job number / 8/2/2011...
  • Page 61 Bottom Door Gasket The door gasket is riveted to the bottom of the inner door panel. Replace inner door to replace door gasket 61 / GE Title or job number / 8/2/2011...

  • Page 62: Tub Gasket

    Tub Gasket • Tub gasket pulls away from channel on lip of tub. • Held in place at the corners with the use of a wire rod that provides tension 62 / GE Title or job number / 8/2/2011...

  • Page 63: Lower Access Panel

    Lower Access Panel (View with outer door panel in place) (Outer door panel removed for better view) Two ¼ hex head screws secure access panel to front frame 63 / GE Title or job number / 8/2/2011...

  • Page 64: Mini Manual Location

    Mini Manual Location Mini Manual located behind access panel on left front side 64 / GE Title or job number / 8/2/2011...
  • Page 65 Water Valve – Float Switch Water valve located on left front of unit Float Switch located on left front Secured with two hex head screws Mounted with two hex head screws 65 / GE Title or job number / 8/2/2011...

  • Page 66: Fill Funnel

    Fill Funnel Fill funnel mounted on left rear corner of tub Inside cap unscrews to release funnel from tub 66 / GE Title or job number / 8/2/2011...

  • Page 67: Main Control

    Main Control Power Switching Power Supply Active Vent Keypad Turbidity/NTC Component Connections 67 / GE Title or job number / 8/2/2011...
  • Page 68 Testing – (Example: Heating Element) Testing of major components can be accomplished with the neutral pin and each individual component as noted in the picture. (Heating element test) 68 / GE Title or job number / 8/2/2011...
  • Page 69 Main Control - Removal • Remove single Phillips head screw located on inner door panel • Swing control out to the left and lift out of support openings 69 / GE Title or job number / 8/2/2011...

  • Page 70: Factory Test Mode

    (In some cases it may be necessary to unplug unit to exit test mode) NOTE: If left in factory test mode dishwasher could run for up to 75 minutes before exiting 70 / GE Title or job number / 8/2/2011...

  • Page 71: Service Mode

    Exit service mode: Press “Start/Reset” at any time. Hold simultaneously for 3 sec. 71 / GE Title or job number / 8/2/2011...
  • Page 72 72 / GE Title or job number / 8/2/2011...

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