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Haier GE GDT645SYN3FS User Manual

Haier GE GDT645SYN3FS
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31-9345
Technical Service Guide
December 2020
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https://appliancetechmanuals.com

Table of Contents

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Haier GE GDT645SYN3FS Specifications

General IconGeneral
TypeBuilt-In
Number of Wash Cycles4
Number of Place Settings16
Drying SystemHeated Dry
Wash Levels3
Water Filtration SystemYes
Number of Racks3
Upper Rack FeaturesAdjustable
Interior LightingNo
Energy Star CertifiedYes
Delay StartYes
Soil SensorYes
Third RackYes
Stainless Steel TubYes
DispenserRinse Aid and Detergent
Height34 inches
Depth24 in
Control TypeElectronic Touch
Dimensions (H x W x D)34 in x 24 in x 24 in

Summary

Safety Information

Safety Requirements

LOTO 6 Step Process

Mandatory Lockout/Tagout procedure for GEA Factory Service Technicians.

Nomenclature

Model Number Breakdown

Explanation of letters and numbers in model numbers for identification.

Electrical Specifications

Operation and Cycle Information

Heater Algorithm, Dry Cycle

Troubleshooting

Will Not Start Issues

Common causes and checks for a dishwasher that will not start.

Critical Errors

Component Locator Views

Tub and Structure

Junction Box and Wiring

Location and connection details for the main electrical junction box.

Door Balance System

Overview of the door balance system components like springs, cables, and rollers.

Tub Gasket

Tub Gasket Installation

Step-by-step guide for installing the tub gasket correctly.

Latch System

Door Latch/Switch Assembly Replacement

Procedure for replacing the door latch and switch assembly.

Door

Door Removal Procedure

Step-by-step guide to safely remove the dishwasher door.

Front Control Console Removal

User Interface (UI)

Top Control User Interface (UI)

Outer Door Panel Components

Vent Parts

Power Dry System Removal

Steps to remove the power dry system components.

Detergent Dispenser

Detergent Module Removal

Step-by-step guide to remove the detergent module.

Sump Module

Sump Module Removal

Installing Sump Module

Electronic Controls

Critical Errors Overview

Overview of critical errors causing cycle shutdown and displays.

Fault Codes

User Interface (UI) Diagnostics

Consumer Error Mode

Entering Consumer Error Mode

Procedure to enter consumer error mode for diagnostics.

Demo Mode

Service Mode

Entering Service Mode

Procedure to enter Service Mode, noting CSM reset.

Diagnosing Electronic Control Boards

CSM (Current Sense Module)

CSM Diagnostics and Testing

Diagnostic steps for CSM and heater testing.

Main Control Board Access

Accessing the Main Control Board

Steps to access the main control board for inspection or replacement.

Fill System

No Water Detected Error

Error code H20 or blinking LED when no water level change occurs.

Pressure Sensor Errors

Error codes PrS/PrF or blinking LEDs due to sensor issues.

Continuous Fill Error

Error code CFE or blinking LEDs indicating a constant fill condition.

Testing the Pressure Sensor

Steps to test pressure sensor power and signal output.

No Fill Diagnostics Flowchart

Fill Valve

Water Valve Removal

Steps to remove the water valve assembly.

Circulation System

Diagnostics

Clear Door Diagnostic Tool

Tool for diagnosing wash zones, rotation, and leaks.

No Circulation and Drain

Filtration

Circulation Motor and Pump Assembly

Circulation Pump Motor Removal

Procedure to remove the circulation pump motor assembly.

Pressure Diverter (Two Port)

Pressure Diverter (Four Port)

Pressure Diverter Switch

Diverter Sensor/Switch Diagnosis

Diagnostic steps for the diverter sensor/switch.

Turbidity Sensor and Thermistor

Thermistor

Main Conduit

Spray Arms

Drain System

Failure to Drain Diagnostics

Diagnostic steps for troubleshooting drain issues.

Failure to Drain Flowchart

Drain Pump Strip Circuit

Drain Pump Removal or Replacement

Dry System

Heated Dry Element Algorithm

Table of heater algorithms and dry times.

Heat Element Diagnostics

Heat Element Will Not Come On

Troubleshooting flowchart for a non-functional heat element.

Heat Element Removal

Element Removal Without Uninstalling Dishwasher

Steps to remove heater without removing unit.

Element Removal By Uninstalling Dishwasher

Steps to remove heater after uninstalling unit.

Tub Thermal Cut Off (TCO)

Venting/Airflow

Power Dry Forced Air System

Description of the power dry fan and its operation.

Schematic

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