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GE CDT865SxJ0 Series Technical Service Manual

2016 stainless steel tub dishwasher
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GE Appliances
Technical Service Guide
June 2016
2016 Stainless Steel Tub Dishwasher
GE Appliances
Louisville, Kentucky 40225



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  Summary of Contents for GE CDT865SxJ0 Series

  • Page 1 GE Appliances Technical Service Guide June 2016 2016 Stainless Steel Tub Dishwasher CDT835SxJ0xx CDT865SxJ0xx PDF820SxJ0xx PDT825SxJ0xx PDT845SxJ0xx PDT846SxJ0xx PDT855SxJ0xx ZDT915SxJ0xx ZDT975SxJ0xx 31-9256 GE Appliances Louisville, Kentucky 40225...
  • Page 2: Safety Information

    GE Appliances Technical Service Guide Copyright © 2016 All rights reserved. This service guide may not be reproduced in whole or in part in any form without written permission from GE Appliances. – 2 –...
  • Page 3: Table Of Contents

    Table of Contents Safety Information ..................................2 Table of Contents ..................................... 3 Safety Requirements ..................................6 Nomenclature ....................................7 Introduction ....................................... 8 ................................. 8 Tools Needed ..................................... 8 ................................9 Operation and Cycle Information ............................10 Target Temperatures ................................11 Cycle Details ....................................
  • Page 4 Front Control Console ................................. 32 Front Control UI, Light Pipe and Buttons ........................33 Pocket Handle (Front Control Only) ..........................33 Top Control Panel, UI, Light Pipe and Buttons ......................33 Top Control Console Cover ............................... 35 Outer Door Panel................................... 35 Hinges ......................................
  • Page 5 Side Fill Jet Assemblies ............................... 62 Circulation System ..................................63 Diagnostics ....................................64 No Circulation (CDT835J, PDT820J and PDT835J Only) ..................65 Filtration ....................................66 Circulation Motor and Pump Assembly ........................67 Pressure Diverter ................................... 69 Turbidity Sensor and Thermistor ........................... 72 Conduits and Spray Arms ..............................
  • Page 6: Safety Requirements

    Safety Requirements GE Factory Service Employees are required to use safety glasses with side shields, safety gloves and steel toe shoes for all repairs. Electrically Rated Glove and Steel Toed Work Boot Dyneema®Cut Resistant Dyneema® Cut Resistant Glove Glove Keeper...
  • Page 7: Nomenclature

    Z D T 9 7 5 S S J 0 S S Color Brand WW - White H - Hotpoint Configuration Engineering Digit CC - Bisque G - GE D - Built-In 0 - 9 BB - Black P - Profile P - Portable II - Panel Ready C - Café...
  • Page 8: Introduction

    Introduction • GE's most advanced wash system delivers 65% more cleaning power to each rack • Single Speed or Variable Speed Circulation and Drain Motors (depending on model) • Clean Sweep Jets, Middle Spray Arm Model (PDT846SSJ only) • Four Port Pressure Diverter allows zonal wash •...
  • Page 9 AC Voltage DC Voltage • Single Speed Circulation Pump: 120 VAC, .8 • Main Control: Output 5 & 13.5 VDC amp – 3.8 LRA, 8 GPM @ 5 PSI • UI Control: 5 - 13.5 VDC • Single Speed Drain Pump: 120 VAC, 27 ohms, •...
  • Page 10: Operation And Cycle Information

    Operation and Cycle Information This section of the guide provides details on segments of cycles, timing of cycles, temperature expectations and cycling of the heater. Auto Hot Start If incoming water temperature is below 80°F, Auto Hot Start is initiated at the beginning of the cycle in an attempt to purge the home water lines of cooler water.
  • Page 11: Target Temperatures

    Target Temperatures by low temperature incoming water, heater not operational, and installation. The dishwasher will achieve these goals if the above considerations are true. Exposed Heater Target / Max Temperature Limits Cycle Rinse Express Light eWash Normal Auto Heavy Hidden Heater Target / Max Temperature Limits Cycle FR w/Dry Rinse...
  • Page 12: Cycle Details

    Cycle Details circulation time in each segment, but does not include dry cycles. Cycle Algorithm Comparisons Rinse Express Light eWash Normal AutoSense Heavy Segment Description Diverter Zonal Calrod Light Heavy Light Heavy Position Soil Soil Soil Soil Fill (sec) Pulse Circ (min) Drain Empty...
  • Page 13: Troubleshooting

    Troubleshooting This troubleshooting section is an overview of diagnostic capabilities of the electronic control. The control features allow retrieval of error codes, operation of loads in service mode and further diagnostics of the electronic controls are possible with the use of the Service LED on the main control board. Details on Consumer Error Mode and Service Mode, as well as Service LED are located in the Electronic Controls section of this service guide.
  • Page 14: Component Locator Views

    Component Locator Views Appearance may vary throughout this service guide. Some models do not have all features shown or may be Front Control Latch Assembly Front Console Vent Indicator LED's Buttons Pocket Handle Outer Door Panel Top Control Buttons Top Control Console Status LED Handle Outer Door Panel...
  • Page 15 Toe Kick Area Junction Box Control Box Water Valve Sump Floor Protect Pan Insulation Toe Kick Panel Toe Kick Screws Side Tub Trim Third Rack Mounting Hardware High Drain Loop Hose Fill Hose Fill Funnel Hinge Arm Balance Cable Balance Roller Balance Spring (Continued next page) –...
  • Page 16 Back Heater Mounting Nuts Floor Protect Pan High Drain Loop Bottom Floor Protection Pan Junction Box Main Control Box Level Leg Sump Water Valve Fill Hose High Drain Loop Hose Tub TCO Heater Mounting Nuts (Continued next page) – 16 –...
  • Page 17 Sump (Top) Vent Caps Ultra-Fine Filter Fine Filter Sump Gasket Diverter Flood Float Sump Flood Switch Sump (Bottom) Sump Turbidity Sensor Sump Latch Cam Sump Latch Cam Flood Switch Circulation Pump Diverter Drain Pump Sump Latch Cam (Continued next page) –...
  • Page 18 Inside Tub Trim Third Rack Upper Rack Main Conduit Silverware Basket Lower Rack Detergent Module Door Strike – 18 –...
  • Page 19: Tub And Structure

    The wiper edge must contact the cabinet Ground Screws Toe Kick Trim if needed WARNING: GE Factory Service Technicians are REQUIRED to follow Lockout / Tagout (LOTO) 6 Step Process prior to beginning repair. Insulation Junction Box...
  • Page 20: Level Legs

    Level Legs Hinges There are four leveling legs located on the base rails of the dishwasher. (part of the Tub and Structure system and not a replaceable part) and hinge arms. The hinge system To access the level legs, remove the toe kick and allows the door to be removed while the dishwasher insulation (some models).
  • Page 21 NOTE: Springs strength springs, the side used is unimportant and Depending on the weight of the panel being used, the table headings above can be used as reference additional springs may be needed to balance the only. For example, a panel weighing 8 pounds would door during operation.
  • Page 22: Tub Gasket

    Hinge Friction Pad Tub Gasket Removal: Pull the gasket from the retainer area. Friction pads have been added between the hinge Tub Gasket Installation softer feel to the door opening and closing. 1. The center of the gasket has a mark which is placed pointing to the inside of the dishwasher.
  • Page 23: Latch System

    4. Continue to push the gasket into the track to the Door Latch / Switch Assembly Replacement bottom of the tub and extending the gasket 2 in. 1. Remove power to the dishwasher. to the center of the tub.. 2. Remove the dishwasher from its installed position, approximately 6 to 8 inches.
  • Page 24: Upper Rack

    Pull out 1/2 in. and slide the rail toward the front of Upper Rack the rack, releasing the rail from the rear tab. Full Extension Rails Removal 1. Extend to the full outward position. 2. Push up on the right side track lever and down on the left side lever.
  • Page 25 Stationary Bracket 3. Slide the bottle wash manifold to the front of the rack. The bracket is snapped onto the rack, and can be removed by pressing in on 4 tabs to release and sliding the bracket to the front of the rack, then 4.
  • Page 26: Lower Rack

    Lower Rack part numbers and are marked L or R (left or right) on the inside to insure proper installation. Roller Assembly Left Side details on the lower racks. The lower rack roller assemblies consist of brackets, rollers, and covers (left or right, two per side) as well as rollers (four per side).
  • Page 27: Third Rack (Some Models)

    Third Rack Brackets Third Rack (some models) To remove the brackets the dishwasher must be The third rack is designed to place silverware, removed from installation. cutlery and other utensils at the top of the 1. Remove the basket and frame. dishwasher for easier access.
  • Page 28 Removing Monogram Slide Rails from the Tub Monogram Third Rack 1. The dishwasher will have to be removed to ZDT975S has a two tray basket system with full access the mounting hardware. extension rails. 2. Remove the two 1/4 in. hex head screws (one on Monogram Third Rack Removal each side).
  • Page 29: Door

    7. Slide the cable down and away from the dishwasher. Do not release tension from the cable. WARNING: GE Factory Service Technicians are REQUIRED to follow Lockout / Tagout (LOTO) 6 Step Process prior to beginning repair. (Continued next page)
  • Page 30 8. Slide the cable into the cable clip to prevent the 10. Standing in front of the dishwasher, open the spring from disconnecting from the cable. door a few inches, then lift the door and hinge Caution: If the cable is released before it is secured in the clip, the spring and cable may become disconnected.
  • Page 31: Inner Door Vent Cover

    4. Remove four T25 Torx screws (two each Inner Door Vent Cover side) that secure the inner door to the hinge assemblies. The inner door vent cover must be removed to remove the power vent conduit and fan. Insert two then turn counter-clockwise to remove.
  • Page 32: Front Control Console

    To Reassemble the Door Front Control Console Removal 1. Place the outer panel face down on a protected 1. Remove the door and separate the inner and surface. outer door panels. 2. Place the inner door face up, and position six 2.
  • Page 33: Front Control Ui, Light Pipe And Buttons

    Front Control UI, Light Pipe and Buttons Pocket Handle (Front Control Only) The front control console must be removed and separated to access the UI, light pipe and buttons. The pocket handle is attached to the inner door UI Removal panel.
  • Page 34 Access the UI, Control Covers, Buttons and Light Pipe release the remaining tabs (four each side). 1. Remove and separate the door. 2. Remove four 1/4 in. hex head screws. 3. The control and bottom cover will drop down from the control panel. 7.
  • Page 35: Top Control Console Cover

    Outer Door Panel Top Control Console Cover Top Control Console Cover Removal Components 1. Remove and separate the door. 2. Remove the bottom cover, UI, light pipe and buttons. Lens Handle 3. Remove the top console and cover as an Handle Screws assembly.
  • Page 36: Inner Door Panel

    Door Strike Inner Door Panel SS Door Attach Strips Attachment strips are used to help secure the inner and outer door panels. Console With the UI and Console (pocket handle on front Side Attach Strip Side Attach control models) removed, there is clear access to Screws (T15 Torx) Strip the 1/4 in.
  • Page 37: Vent Parts

    If alignment causes a binding on the tab, it can be Vent Parts removed, the purpose for the tab is to aid assembly in the factory. The vent cover provides the main attachment for the venting assembly. Mounting Screw Vent Duct and Fan Gasket Vent Cover Power Dry Models...
  • Page 38: Detergent Dispenser

    Detergent Module Removal Detergent Dispenser 1. Remove power to the dishwasher. 2. Remove and separate the door. 3. Remove the EPS cover. Double back tape is used to secure and is reusable (when reinstalling the EPS cover, UP must be toward the top of the door).
  • Page 39: Floor Protect Pan

    Rinse Aid Sensor Floor Protect Pan This sensor works the same as a turbidity sensor, ~ 1 VDC is sent to an LED inside the rinse tank, the of the 2016 Stainless Steel Tub Dishwashers. This “photo sensor” sends a signal back to the control. feature will hold 24 ounces of water on a level •...
  • Page 40 When installed correctly, the Floor Protect Pan is 2. Lift the pan upward until it contacts the base rail grounded through the dishwasher structure. If it tabs. is not installed correctly, disconnect power before servicing the dishwasher. Floor Protect Plan is not installed correctly and 3.
  • Page 41: Sump Module

    8. Loosen the high drain loop hose clamp (1/4 in. Sump Module hex head) and remove the hose from the drain pump (there will be a small amount of water in The sump module is front serviceable with the the sump, pump and hose). dishwasher remaining in the installed location.
  • Page 42 11. The sump latches below are shown in the 14. Disconnect the circulation pump, heater, drain release position. Each latch has a stop point built in. Turn the latches to a stop point when unlatching and latching. Flood Switch Heater Drain Pump Diverter...
  • Page 43: Sump Gasket

    Sump Gasket hands to push down on the sump module. NOTE Stressing or softening the gasket ribs (see below) will twist the sump into place. make a new gasket seat easier. Lubricating with a small amount of rinse agent or water will also ease installation.
  • Page 44: Electronic Controls

    Error was not reached in control of GE Dishwashers. This device is designed 3 of the past 5 wash to trip if current leakage to ground is above 20mA cycles.
  • Page 45 Top Control LCD Models Fault Description Cause / Action or Check Code Communication Failed User Interface control unable to communicate with machine control Inverter not detected on inverter equipped model Inverter Found On Incorrect MC Personality correctly Wireless Module (On some models) Communication lost with wireless module High Water Temperature Check thermistor (replace as needed), replace...
  • Page 46: On The Main Control Board Csm

    On the Main Control Board CSM A CSM is a protective device that is part of GE Dishwashers, and is located on the main control board. This device is designed to trip if current leakage to ground is above 20mA ± 5mA is detected. The CSM functions similar to commercially available GFCIs;...
  • Page 47: Service Mode

    Exit Service Mode by pressing and holding the Cycle Service Mode Select and Start pads for 5 seconds, or by pressing any other pad. Entering Service Mode LCD Display Models Show the Load to Control in NOTE: Entering Service Mode resets the CSM. the Display: The dishwasher must be in Consumer Error Mode to enter Service Mode.
  • Page 48: Diagnosing Electronic Control Boards

    AC supply connector, Board, found on the next page), then repower the door harness and RJ45 connector. dishwasher to view the Service LED. WARNING: GE Factory Service Technicians are Blink Pattern Meaning REQUIRED to follow Lockout / Tagout (LOTO) 6 1x per 3 seconds Dishwasher in not running a Step Process prior to beginning repair.
  • Page 49 3. Earth / Ground RJ45 Connector 9. Use care when reinstalling the main control WARNING: GE Factory Service Technicians are board to prevent wire pinching. Make sure the REQUIRED to follow Lockout / Tagout (LOTO) 6 harnesses are routed properly through the Step Process prior to beginning repair.
  • Page 50: Ui Diagnostics

    Attempt to enter UI Diagnostics the CSM is tripped. Consult On the Main Control Board CSM section of this service guide to diagnose and repair. Check for 120 VAC entering the machine control. If If the service LED on the machine control has a no voltage is found, or voltage disappears when Start button is pressed, a house electrical fault is door harness and follow the below DCV checks.
  • Page 51: Inverter Control Board

    4. The cover can be removed for diagnostics Inverter Control Board and connector access by removing the front mounting screw. Introduction The Inverter is used to allow both circulation and drain motors to be operated at variable speeds for The inverter board is torqued to the mounting plate and should not be removed.
  • Page 52: Inverter And Motor Diagnostics

    The main board illustration on the following page Inverter and Motor Diagnostics shows connector numbers and pin locations. It also shows the Service LED location. Accessing Dishwasher Fault Codes • J702 is the Motor connector These diagnostic checks are performed with the •...
  • Page 53 Inverter and Motor Diagnostics Circulation and/or Drain Motor Will Not Operate The main board illustration below shows connector numbers and pin locations. It also shows the Service LED location. • J702 - Motor connector • J703 - Heater connector • J711 - DC connector •...
  • Page 54 Accessing Inverter Fault Codes These diagnostic checks are performed with the view the inverter service LED. checked and found to be tight, reapply power to the dishwasher. Then enter Service Mode and initiate the proper test to run the drain or circulation pump motors.
  • Page 55 TCO Circuit Drain Motor TCO Drain Motor Windings Circulation Motor TCO the motors. Both motors will have to be checked Circulation Motor Windings – 55 –...
  • Page 56: Wifi Connect

    Wi-Fi setup is completed by the consumer with their and allow the dishwasher to communicate to the smartphone or connected tablet. If the consumer needs assistance, they should call the GE Appliances tablet. Information on the phone app is available Connected Home Call Center.
  • Page 57 The LCD display has an icon indicator showing that Entering Consumer Error Mode (see the Consumer the feature is enabled when the GE dishwasher is Error Mode section of this service guide) may indicate an F6 Fault. If F6 is detected, the Wi-Fi Module, UI or wiring may be at fault.
  • Page 58: Tub Lighting

    Tub Lighting ZDT915 and ZDT975 Only Diagnosis Tub lighting is actuated when the door is opened. If The two top lights are in a parallel circuit and can be the door is opened for longer than 15 minutes, the checked for 12-14 VDC at the lights (yellow on the right side top light, to violet/white on the left side, or will reset when the door is closed and then at the main control board on connector J723, pins...
  • Page 59: Fill System

    13.5 VDC, resistance is 32 is 1 minute. The water valve is located in the front left corner, under the dishwasher. As with past GE Dishwashers, it is secured to the left base leg Sump Flood...
  • Page 60: Diagnostics

    Diagnostics Strip Circuit – 60 –...
  • Page 61: Flood Float And Switch

    Flood Float and Switch Air Gap The Flood Float is located in the sump. The Flood The air gap allows air to enter into the tub during Switch is located on the underside of the sump. It the dry portion of the cycle. It is located on the left side of the dishwasher tub, and must be removed from the installation to access.
  • Page 62: Water Valve Removal

    Water Valve Removal Side Fill Jet Assemblies 1. Remove power to the dishwasher. 2. Remove the toe kick. and secures the jets to the tub. A seal is located on 3. Remove two 1/4 in. hex head screws from the both the inside and the outside the tub.
  • Page 63: Circulation System

    Circulation System With only .83 gallon of water, system which directs it to either the lower spray arm or mid spray arm and upper sprayer (some models). This section will discuss wash system The new 2015 Plastic Tub Dishwasher features alternating spray arms allowing low water use, helping pump as described later in this section.
  • Page 64: Diagnostics

    Diagnostics 10. Initiate the Service Mode, and verify the Clear Door Diagnostic Tool circulation system operation. The Clear Door (Part #: WX05X20002) provides 11. Service Mode will initiate a 2 minute circulate technicians with a tool to accurately diagnose test. Depending on the diverter position at 2012 and later dishwashers.
  • Page 65: No Circulation (Cdt835J, Pdt820J And Pdt835J Only)

    No Circulation (CDT835J, PDT820J and PDT835J Only) Diagnostics for variable speed motor is located in the inverter section of this guide Circulation and Drain Motor Fuse (CDT835J, PDT820J and PDT835J Only) A circulation and drain pump motors fuse is located on the main control board. If found open while testing for no circulation pump or no drain operation, the main control and circulation pump or drain pump must be replaced.
  • Page 66: Filtration

    Filtration for improved cleanability. the turbidity sensor and into the circulation pump. Fine Filter Good twist lock design. The Owner's Manual advises the consumer to remove and clean every 60 days or more frequently depending on use. Using brushes or mixes with the water that has passed through the the circulation pump.
  • Page 67: Circulation Motor And Pump Assembly

    Variable Speed Motor (CDT865SxJ0xx, PDT845SxJ0xx, PDT846SxJ0xx, PDT855SxJ0xx, ZDT915SxJ0xx and ZDT975SxJ0xx). WARNING: GE Factory Service Technicians are Variable speed motors mount to the sump the same REQUIRED to follow Lockout / Tagout (LOTO) 6 way single speed motors are mounted. Both remove Step Process prior to beginning repair.
  • Page 68 Hidden Heater Diagnostics Heater terminals are located on the side of the pump motor assembly, and can be tested there or at the main control board. Remove connector J703, and look for 10 to 15 ohms across the violet to white/red wires. If the circuit is open, replace the complete pump motor assembly.
  • Page 69: Pressure Diverter

    The circulation pump turns on, water pressure Pressure Diverter causes the diverter plate to rise and index 1/8 turn. The Diverter is the key component which allows to lower and index 1/8 turn. This repeats until the lower water use, by alternating water to the lower diverter reaches the position the control is set for.
  • Page 70 The main control seeks the Lower Primary as the Diagnosing a Pressure Diverter Use a Clear Door (Part #: WX05X20002) to diagnose followed by silverware wash, upper spray system a mechanically inoperative diverter. (which includes mid spray arm), bottle wash and upper spray system.
  • Page 71 4. Continuity can be checked across white/orange Diverter Removal (pin 14 and pin 15) and violet/yellow (pin 17 and 1. Disconnect power to the dishwasher. pin 18). An open circuit should be read. To close each switch, place a magnet at the end of the 2.
  • Page 72: Turbidity Sensor And Thermistor

    Diverter Installation Tip: Using rinse aid or water Thermistor on the diverter seals will aid diverter installation. The Thermistor is located inside the turbidity sensor. The thermistor monitors water temperature in the tub. If the thermistor opens or shorts it will cause an error (see Consumer Error Mode).
  • Page 73 Turbidity Sensor Calibration rinse but before dry, the control will add three extra and drain. The cycle will now advance to dry and complete. Replacement controls will enter a calibration at the calibration does not occur, calibration will retry on the next cycle, until it is completed.
  • Page 74: Conduits And Spray Arms

    Conduits and Spray Arms Upper Spray System Hose Cover Middle Conduit Bottle Wash Hose Docking Crane Bottle Wash Manifold Main Conduit Bottle Wash Clips Middle Spray Arm (some models) Lower Spray Arm (some models) Silverware Wash Manifold Silverware Wash Conduit Sump –...
  • Page 75: Lower Spray Arm And Conduit

    Lower Spray Arm and Conduit Removal Lower Spray Arm and Conduit 1. Remove the 1/4 in. hex head screw from the The lower spray arm provides an upward directed conduit. arms, turning both clockwise and counter-clockwise during the main wash part of the cycle. During the pre-rinse and post-rinse segments, the arm turns clockwise only.
  • Page 76 3. Slide the conduit out of the diverter tab. Release the tab using a small screwdriver and turn the hub counter-clockwise to separate the conduit and spray arm. Spray Arm from Conduit Removal Monogram models may have the hub tab locked in the spray arm tab or on the edge of the spray arm.
  • Page 77: Main Conduit

    NOTE: Using rinse aid or water on the main conduit Main Conduit seal in the diverter will aid main conduit installation. The Main Conduit supplies water to the mid spray arm, bottle wash (on some models) and the upper spray system (on some models). Main Conduit Removal 1.
  • Page 78: Middle Spray Arm

    The three wing part of the assembly is mounted to Middle Spray Arm the base assembly and not centered to the rack. It will have an elliptical rotation allowing the spray The Mid Spray Arm provides an upward directed pattern to position spray jets to each corner of the spray pattern to the upper rack.
  • Page 79 The adjustable conduit has an internal check valve to block wash water from exiting the wash system, keeping water directed into mid spray arm. The mid conduit is replaced as an assembly, individual parts for the assembly are not available separately. Gasket Check Valve Main Conduit Body Cover The middle conduit has a port on the right side to...
  • Page 80: Bottle Wash System

    Bottle Wash System The Bottle Wash is designed to wash sports bottles, baby bottles or any dishwasher safe container with a smaller mouth which blocks water from entering the container using normal spray arm jets. This feature insures clean containers. Water is active anytime that the upper spray arm is operational. Selecting the bottle wash option on the control changes the wash algorithm.
  • Page 81: Silverware Wash

    The conduit is placed on a locating pin on the Silverware Wash back wall of the tub, and connects to the four port diverter using the same type of tab as the main Silverware Wash is a new feature which directs conduit.
  • Page 82: Drain System

    Drain System Operation Drain Components CDT835S, PDF829S and PDT825S The Drain Pump is a 120 VAC synchronous motor, resistance of the motor windings is 27 ohms + pump. It is normal for the drain pump to start and stop several times during each drain cycle; this is normal.
  • Page 83: Diagnostics Single Speed Motor Cdt835S, Pdf829S And Pdt825S

    Diagnostics Single Speed Motor CDT835S, PDF829S and PDT825S Drain Pump Strip Circuit Diagnostics Variable Speed Drain Motor Diagnosing the variable speed drain motor involves the motor, inverter, circulation pump and main control. These are all located in the Electronics Controls, Inverter Control Board section of this service guide. (Continued next page) –...
  • Page 84 Drain Pump Removal or Replacement 7. Use a new clamp (included with a new pump or clamp kit WD35X10382 when reinstalling). 1. Remove power to the dishwasher. When reassembling, position the hose properly onto 2. Remove the door (see Door Removal in the the locating feature on the sump.
  • Page 85: Dry System

    Dry System Introduction and Operation CDT835S, PDF829S and PDT825S Heat Element Heater Supports Heater Clip (on Main Conduit) Gasket Tub TCO The dual wattage 4-pass Calrod Heater serves both to heat the water during a wash cycle, and to heat the air during the dry cycle.
  • Page 86 Diagnostics Strip Circuit WARNING: GE Factory Service Technicians are REQUIRED to follow Lockout / Tagout (LOTO) 6 Step Process prior to beginning repair. • Heating Element Dual wattage occurs due to the heat level in the element raising the resistance of the internal element.
  • Page 87: Heat Element Removal

    Heat Element Removal Tub TCO PDF820S, PDT825S and CDT835S The Tub TCO is used to prevent a run-away heat The heater may be removed by one of two methods. condition. If it trips, low water level will cause this condition as well as a bad thermistor. The TCO is to gain access to the element nuts.
  • Page 88: Power Dry Forced Air

    Operation Power Dry Forced Air Power Dry (all models) All models covered in this guide have a Power Dry setting and on Monogram models, a Max Dry option. The fan is a brushless motor and operated by 13.5 Components include a power dry fan assembly and VDC and runs at ~6,000 RPM.
  • Page 89 • Power Dry Fan: 12-13.5 VDC, 6k RPM • Variable Speed Dry Fan: 6 VDC 6k RPM and 13.5 VDC – 10k RPM Diagnostics If the fan is non-operational, the door must be removed and separated to accurately diagnose. The brushless motor can be diagnosed by checking the DC voltage to the motor.
  • Page 90: Schematics

    Schematics CDT835SxJ0xx, PDT825SxJ0xx and PDT835SxJ0xx – 90 –...
  • Page 91 CDT835SxJ0xx, PDT825SxJ0xx and PDT825SxJ0xx – 91 –...
  • Page 92: Zdt915Sxj0Xx And Zdt915Sxj0Xx

    ZDT915SxJ0xx and ZDT915SxJ0xx – 92 –...
  • Page 93: Dishwasher Warranty

    This warranty is extended to the original purchaser and any succeeding owner for products purchased for home use within the USA. If the product is located in an area where service by a GE Authorized Servicer is not available, you may be responsible for a trip change or you may be required to bring the product to an Authorized GE Service location for service.
  • Page 94: Index

    Index Adjustable Bracket 24 Junction Box 19 Auto Hot Start 10 Latch Switch Diagnosis 23 Basket and Frame 27 Latch System 23 Bottle Wash 10, 25, 63, 69, 74, 79, 80 Level Legs 20 Bottle Wash System 80 Light Pipe 33, 34 Buttons 33, 34 Lower Rack 26 Circulation Motor 65...
  • Page 95 Tub Trim 19 Turbidity Sensor 9, 44, 45, 63, 72, 73 UI Diagnostics 50 Upper Spray System 80 Vent Parts 37 Warranty 93 Water Level 59 Water Valve 9, 47, 59, 62 – 95 –...