Haier HFD647WISS Service Manual
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Service Manual
Refrigerator/Freezer
Model:
HFD647AS HA AA
HTD647AS HA AA
HFD647WISS HA AA
321199

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Table of Contents
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Summarization of Contents

Parts Identification
HTD647AS Model Parts
Identifies components of the HTD647AS model refrigerator.
HFD647AS Model Parts
Identifies components of the HFD647AS model refrigerator.
HFS647WISS Model Parts
Identifies components of the HFS647WISS model refrigerator.
Installation
Initial Installation Steps
Attaching toe moulding and installing door handles for the refrigerator.
Freezer Drawer Handle & Levelling Feet
Installing freezer drawer handle and front levelling feet for stability.
Disassembly and Installation
Refrigerator Door Removal/Replacement
Steps for removing and replacing the right and left refrigerator doors.
Freezer Drawer & Shelves
Procedures for removing the freezer drawer and adjusting shelves.
Control and Display System
Control and Display Panel Overview
Details the layout and functions of the control and display panel.
Function Adjustment and Control Principle
Artificial Intelligence (AI) Mode
Instructions for entering and exiting the Artificial Intelligence mode.
Temperature Setting (PC & FC)
Procedures for setting refrigerator (PC) and freezer (FC) temperatures.
Electrical Control Principles
System Operation Overview
Overview of air damper control, PWM fan control, and general electrical principles.
Defrost Control
Explains the control logic and conditions for defrost cycles.
Refrigerator Diagnostic Modes
Details test modes for compressor, fans, heaters, and icemaker.
Sensors and Fault Codes
Sensor Locations
Identifies the physical locations of various sensors within the refrigerator.
Fault Code Display
Thermistor Sensors Resistance Table
Provides a table of thermistor sensor resistance values at different temperatures.
System Flow Chart
System Flow Diagram
Illustrates the overall system flow of the refrigerator.
System Cabinet Tubing Layout
Shows the layout of tubing within the refrigerator cabinet.
Circuit Diagram
Schematic Diagrams
Provides schematic diagrams for different refrigerator models.
Wiring Diagrams
HFD647AS Wiring
Wiring diagram specific to the HFD647AS model.
HTD647AS & HFD647WISS Wiring
Wiring diagrams for HTD647AS and HFD647WISS models.
Trouble Shooting Flow Charts
Icemaker Problems
Troubleshooting flowcharts for various icemaker issues.
Icemaker Noise & Ice Sticking
Troubleshooting for abnormal icemaker noise and stuck ice cubes.
Troubleshooting
Troubleshooting And Repair
General guidance on troubleshooting and repair procedures.
Normal Phenomena
Describes normal operating sounds and conditions that are not faults.
Common Faults and Remedies
Discusses common refrigerator faults and their remedies.
Faultfinding Essentials
Visual Inspection (Look)
Faultfinding step focusing on visual inspection of the system.
Auditory Checks (Listen)
Faultfinding step focusing on listening for abnormal operational sounds.
Tactile & Temperature Checks (Touch & Feel)
Faultfinding step focusing on tactile and temperature checks.
Trouble Analysis and Troubleshooting
Poor Refrigerating Effect
Analyzes causes and remedies for poor refrigerating performance.
Compressor Faults
Stoppage Due to High Discharge Pressure
Analyzes compressor stoppage due to excessively high gas discharge pressure.
Electrical Faults Causing Stoppage
Sudden Stoppage from Other Causes
Covers other reasons for sudden compressor stoppages.
Mechanical Compressor Faults
Compressor Won't Stop
Analyzes reasons why the compressor might not stop running.
Electrical Leakage
Vibration and Noise Issues
Addresses causes and remedies for strong vibration and noise.

Table of Contents