Lg inverter washing machine dead pcb || How to Trace and Solve PCB Faul
Lg inverter washing machine dead PCB || How to Trace and Solve PCB Fault
LG inverter washing machines have gained popularity for their efficiency and advanced technology. However, like any electronic device, they can encounter issues over time. One common problem users face is a malfunctioning PCB (Printed Circuit Board), which can render the entire washing machine non-functional. In this guide, we'll walk you through the process of repairing a dead PCB in your LG inverter washing machine, saving you the hassle and expense of professional repairs.
Understanding the LG Inverter Washing Machine PCB:
Before diving into the repair process, it's essential to have a basic understanding of the PCB. The PCB is the brain of your washing machine, responsible for controlling various functions such as motor speed, water intake, and cycle duration. When the PCB fails, the washing machine ceases to function. Common causes of PCB failure include power surges, manufacturing defects, or general wear and tear.
Diagnostic Steps:
Check Power Supply:
Ensure the washing machine is unplugged.
Inspect the power cord for any visible damage.
Test the outlet with another device to confirm a working power supply.
Inspect for Physical Damage:
Examine the PCB for visible signs of damage such as burnt components, loose connections, or melted solder joints.
Use a Multimeter:
Set the multimeter to the continuity or resistance mode.
Test the PCB for continuity, paying close attention to key components like fuses and relays.
Tools and Materials:
Multimeter
Screwdriver set
Soldering iron
Resoldering pump or wick
Replacement components (if needed)
Step-by-Step Repair Guide:
Safety First:
Always disconnect the washing machine from the power source before attempting any repairs.
Access the PCB:
Remove the washing machine's top or back panel to access the PCB.
Visual Inspection:
Carefully inspect the PCB for burnt or damaged components. Take note of any visibly damaged areas.
Test Components:
Use the multimeter to test key components such as fuses, resistors, and capacitors for continuity or proper resistance.
Identify Faulty Components:
Replace any components that show signs of damage or fail the continuity test.
Soldering:
If the issue is with solder joints, carefully resolder the faulty joints using a resoldering pump or wick.
Resolder the joints using a soldering iron and ensure a secure connection.
Replace Faulty Parts:
If components are irreparably damaged, replace them with compatible parts. Check the washing machine's manual or contact LG for specific part information.
Reassemble and Test:
Once the repairs are complete, reassemble the washing machine and plug it back in.
Run a test cycle to ensure the PCB repairs have restored normal functioning.
Conclusion:
Repairing a dead PCB in your LG inverter washing machine may seem daunting, but with the right tools and a systematic approach, it can be a manageable task. By following this step-by-step guide, you can save both time and money, enjoying the benefits of a fully functional washing machine without the need for professional assistance. Remember to prioritize safety throughout the process and consult the manufacturer or a professional technician if you encounter challenges beyond your expertise.
