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Samsung wa48h7400aw - Service Manual

Samsung wa48h7400aw
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WASHING MACHINE (TOP-LOADING) CONTENTS
SERVICE
Manual
WASHING MACHINE
TOP-LOADING TYPE
Basic Name : WA48H7400AW
(WA7000H PJT)
Basic Code : WA48H7400AW/A2
Model Name : WA48J7700AW
WA48J7770AP
WA48J7770AW
(WA7700J PJT)
Model Code : WA48J7700AW/A2
WA48J7770AP/A2
WA48J7770AW/A2
1. Safety Instructions
2.FeaturesandSpecications
3. Disassembly and Reassembly
4. Troubleshooting
5. PCB Diagram
6. Wiring Diagram
7. Reference

Questions and Answers

  • D
    Denise PrinceJul 27, 2025
    How to check drain in Samsung wa48h7400aw Washer?
    • B
      Brian CookJul 27, 2025
      To check the drain in your Samsung washer, examine the draining pump motor for any foreign objects. Inspect the natural drain for blockages as well. Also, verify all connections and wires are correctly connected and not broken. If the washer malfunctions when the water temperature is high, the pump may need replacing. If the motor stops due to frozen water, remove the ice.
  • C
    Caroline JohnstonJul 31, 2025
    What to do if Samsung wa48h7400aw Washer has door check problem?
    • J
      Jasmine HernandezJul 31, 2025
      If your Samsung washer has a door check problem, the main PBA door detection circuit might be defective, requiring replacement.
  • L
    Lisa RamirezAug 4, 2025
    What to do if my Samsung Washer has water supply problems?
    • R
      Rebecca ParsonsAug 4, 2025
      If your Samsung washer isn't getting water, several things could be the cause. First, the water supply valve may be broken and needs replacement. Also, the water supply could be blocked by a foreign object in the valve, or the water might be frozen. Finally, a malfunctioning PBA relay could also be the issue, requiring PBA replacement. Check these components and take appropriate action.
  • G
    garciacherylAug 8, 2025
    What to do if my Samsung wa48h7400aw has communication issues?
    • B
      boyercalebAug 8, 2025
      If your Samsung washer is experiencing communication issues, start by checking the wire connections and terminal contacts between the sub and main PBAs. Look for any disconnected wires. Also, check if the sub PBA is short-circuited due to moisture. If the main PBA’s communication circuit is faulty, it may need to be replaced.
  • L
    lhooperAug 12, 2025
    How to check motor driving and hall sensor on Samsung wa48h7400aw?
    • S
      Sheila TerryAug 13, 2025
      To check the motor driving and hall sensor on your Samsung washer, inspect the motor connector terminal connections. Verify the motor cover is not damaged. Check the coil for breaks due to moisture or foreign substances. If the PBA control circuit is defective, the PBA may need replacement.
  • M
    madisonyoungAug 17, 2025
    How to check temperature sensor in Samsung wa48h7400aw?
    • C
      Christine MiddletonAug 17, 2025
      To check the temperature sensor in your Samsung washer, first check the connections for the washing heater temperature sensor connector. If the washing heater temperature sensor has a functional error, replace it. Check the connections for the dry heater temperature sensor connector. If the dry heater temperature sensor has a functional check, replace it.
  • H
    Holly LeeAug 21, 2025
    How to troubleshoot water level sensor on Samsung Washer?
    • J
      Jeffrey JonesAug 21, 2025
      To troubleshoot the water level sensor on your Samsung washer, begin by checking the water level sensor terminal connections. Ensure the correct part code for the water level sensor is used, as an incorrect part can cause abnormal operation. If the water level sensor is defective, replace it. If these steps don't resolve the issue, consider replacing the PBA.

Summary

Safety Instructions

Safety Instructions for Service Engineers

Instructions for service engineers to ensure safe operation and prevent accidents during servicing.

Features and Specifications

Features

Details the various features of the washing machine.

Specifications

Lists the technical specifications of the washing machine, including dimensions and capacity.

Detail Features

Provides a detailed comparison of features between different model grades.

Options Specifications

Lists optional items and their specifications, including part codes.

Disassembly and Reassembly

Tools for Disassembly and Reassembly

Lists the necessary tools required for disassembling and reassembling the washing machine.

Standard Disassembly Drawings

Provides step-by-step visual guides for disassembling the control panel and PCB assembly.

Troubleshooting

Information Modes

Details information modes for diagnosing washer issues, including check types and causes.

Corrective Actions for Each Check Code

Provides countermeasures and troubleshooting procedures for specific check codes related to washer malfunctions.

The Installation for Leveling

Explains how to properly level the washing machine using its legs and additional supports.

PCB Diagram

Main PCB

Displays a schematic diagram of the main printed circuit board (PCB) with component locations.

Detailed Manual for Connector and Relay Terminal Part - Main PCB

Details the connectors and terminal parts on the main PCB, listing their functions.

Sub PCB

Shows the layout and components of the sub printed circuit board (PCB).

Detailed Manual for Connector Terminal Part - Sub PCB

Details the connector terminal parts of the sub PCB, listing functions and pin assignments.

Wiring Diagram

Wiring Diagram

Presents the schematic wiring diagram of the washing machine, including color codes.

Reference

Model Number Naming Rules

Explains the naming convention used for washing machine model numbers.

Samsung wa48h7400aw Specifications

General IconGeneral
StyleTop-Loading
ColorSilver
Washer Capacity4.5 cu ft
Dryer Capactity-
Max Spin Speed1100 RPM
Spin Speeds-
Spin ClassC
Number of Cycles11
Cycle SelectionsWhites
WashPureCycle
Optionsextra rinse cycles
No spin and No heatDelay End – Up to 19
HoursExtended Spin
Noise level-
Temperature Selections6 (Cold/20/30/40/60/95)
Energy Class-
Annual Energy Consumption145 kWh
Annual Water Consumption-
Water Consumption Per Cycle-
Voltage120 V
Frequency-
Current15 A
Weight and Dimensions IconWeight and Dimensions
Depth29 1/4 in
Height43 7/8 in
Width27 in
Net Weight-

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