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Contents

Technical Service Guide GE Appliances Safety InformationImportant Safety Notice Reconnect all Grounding Devices Table of Contents Page = Frpsoldqw Safety RequirementsHhshu XW 5HVLVWDQW 6OHHYH V 3UHVFULSWLRQ 6DIHW\ *ODVVHV 6DIHW\ *ODVVHV Pxvw EH $16 Serial Number Nomenclature GE Dishwasher IntroductionPage Installation Product Specifications GDT550HGD Sound insulation Page ‡ 7KHUPLVWRU LQ Iorrg VZLWFK 5HVLVWDQFH 7HPSHUDWXUH AC VoltageDC Voltage Tools Needed Operation Control Features Wash Temp Sani Delay HoursRinse Wash Temp Boost Energy Smart CancelClean Control Lock Cycle Chart Cycle Times Auto Hot Start Cycle Temperatures Main Control Service LED TroubleshootingDiagnostic Error Code Display Mode Service Mode Door Status Check Displaying Diagnostic Error CodesDiagnostic Error Codes Flashing Lights Service Mode /HYHO Glvkzdvkhu Ohiw WR Uljkw DQG Iurqw WR EDFN Poor WashabilityWater on Floor \FOH NoiseDishwasher Does Not Start ‡ RRU DOO Rwkhu Exwwrqv Uhvsrqg DV Qrupdo Service LED Front View Component Locator Views Side View Bottom View Sump Components, Top Sump Components, Bottom GDT550 Sound insulation Tub and StructureToe Kick Junction Box ± ± All Ground Wires Must be Securely AttachedLeveling Legs Grhq Qxwv WR DFW DV MDP Qxwv Deryh DQG Ehorz WKH Edvh UDLO ± ± Upper Rack$ 7 7RU LV Uhtxluhg WR Uhpryh 5DFN DQG 7XE 5ROOHUV 5HPRYH WKH Udfn DVVHPEO\ Iurp WKH GLVKZDVKHU ± ± Lower RackReversible and Fold Down Tines ± ± 7KH Iluvw * Lvkzdvkhuv Surgxfhg -XO\ ± ± DoorTo remove Door 5HPRYH Srzhu WR WKH GLVKZDVKHU 5HPRYH WRH NLFN ± ± 5HOHDVH WKH Zluh Wlhv Kroglqj WKH Kduqhvv WR WKH WXE 5HPRYH ó´ KH Khdg Vfuhzv DW Erwwrp RI GRRU ± ± Inner Door Vent CoverUse care to prevent damage to the inner door 5HPRYH GRRU Door GasketTo separate door Potential Ergonomic Risk GE Factory 5HPRYH ó´ KH Khdg VFUHZV Front Control Door Console Detergent ModuleTo remove the Detergent Module To Diagnose GDF510 Detergent Module &RQWURO DQG Fryhu Zloo Gurs Grzq Iurp Frqwuro SDQHO Top Control Door Control PanelPocket Handle 5HPRYH DQG Vhsdudwh GRRU VFUHZV Bar HandleLatch strike 7R UHPRYH 5HPRYH DQG Vhsdudwh GRRU 6OLGH WKH Vwuls Lqzdug WR Uhpryh Frqwuro UI BoardSS Door Attach Strips Front Control ± ± UI Control ReplacementMain Control Board Top Control ± ± To Access Main Control Board7KH Pdlq Frqwuro KDV D Vhuylfh / Zklfk Dlgv GLDJQRVWLFV To remove the sump module Sump ModuleTo Diagnose Main Control Board ± ± ± ± All Safety Shields must be reinstalled Latch Switch Strip Circuit Latch AssemblyLatch Switch Diagnosis Wire Routing Proper Water Level Fill SystemFill Operation Fill Strip Circuits ± ± Fill Diagnostics ThermistorStrip Circuit ± ± Fill Flood/Float Switch Removal5HPRYH DQ\ Zdwhu LQ WKH Vxps DUHD Iorru Sodwh DQG Iorrg VZLWFK 5HPRYH 3RZHU WR LVKZDVKHU 5HPRYH 7RH .LFN Fill Funnel and HoseFill Water Valve 5HPRYH ó KH Khdg Vfuhzv Iurp Eudfnhw WR OHJ DVVHPEO\ Circulation Operation Circulation SpecificationsCirculation System ± ± To Remove circulation pump motor assembly 5HPRYH WKH GRRU ± ± 5HPRYH WKH Vxps PRGXOHWKH Vxps PRGXOH /RRVHQ WKH Lqohw DQG Rxwohw Zdvk Prwru FODPSV Turbidity Sensor Calibration Turbidity Sensor DiagnosticsCirculation Turbidity Sensor Filters ± ± Upper Spray Arm ± ± Middle Spray Arm Lower Spray ArmCirculation Diverter Middle Conduit ± ± To remove the conduit Circulation Conduit AssemblyTo Remove the Diverter \FOH UHSHDWV ± ± 5HPRYH WKH Xsshu VSUD\ DUP 7KH Pdlq Frqgxlw FDQ QRZ EH Uhpryhg Iurp WKH GLVKZDVKHU ± ± Drain SystemDrain Operation Drain Cycle Algorithm To remove or replace the Drain Pump Drain Strip Circuits Drain Pump‡ Vhfrqgv RII ‡ Vhfrqgv RQ Ulps W\SH Fodpsv Zloo EH Uhsodfhg E\ &ODPS .LW Drain Diagnostics To Remove the Vent Dry Cycle SpecificationsDry System Dry Cycle Operation 5HPRYH WKH Grru VHH Grru UHPRYDO Dry Cycle DiagnosticsHeating Element Heater can be removed 2 ways ± ± Dry Cycle Strip Circuits Tub TCO Service Control Replacement Page Main Board top Main Board bottom Connectors and Pin Locations GDF510 Schematics GDF520 and GDF540 GDT530 and GDT550 For The Period GE Will Replace One Year GE Dishwasher Warranty