Lg Inverter Fridge Compressor Not Working

Introduction

A refrigerator that isn’t cooling is a major headache. The compressor is the heart of your fridge, responsible for circulating refrigerant and keeping things cold. When the lg inverter fridge compressor not working, your food will spoil quickly, costing you money and causing unnecessary stress. Its often noticed when the fridge gets warmer than usual, or you hear no humming sound from the back. Addressing this promptly is key to prevent food waste and further damage to your appliance.

Common Causes of lg inverter fridge compressor not working

Here are some reasons why your LG inverter fridge compressor might be failing to start or work correctly:

Power Supply Issues: The fridge might not be getting enough power due to a tripped breaker or a faulty outlet.
Overload: Too much food in the fridge can strain the compressor, leading to it shutting down.
Dirty Condenser Coils: Dust and debris on the coils prevent proper heat dissipation, making the compressor work harder.
Faulty Start Relay: The start relay helps kickstart the compressor. If it’s defective, the compressor won’t start.
Defective Capacitor: The capacitor provides the initial surge of power to start the compressor motor.
Inverter Board Problems: The inverter board controls the compressor’s speed. Malfunctions here can prevent the compressor from running.
Refrigerant Leak: Low refrigerant levels can cause the compressor to run constantly or not at all.
Compressor Motor Failure: The motor inside the compressor itself could be damaged.
Control Board Malfunction: The main control board of the fridge may be sending incorrect signals.

Symptoms Checklist

Look for these signs to accurately diagnose the problem:

The fridge is warm or not cooling at all.
The freezer may be partially cooling, but not properly freezing.
You hear no humming sound or only clicking sounds from the back of the fridge.
The compressor area at the back of the fridge feels unusually hot.
The fridge’s display shows error codes related to the compressor.
The fridge is running constantly but not getting colder.

How to Fix lg inverter fridge compressor not working Step-by-Step Guide

Follow these steps to troubleshoot your LG fridge:

Check the Power Outlet: Plug a different appliance into the same outlet to ensure it’s working. If not, check the circuit breaker.
Reset the Fridge: Unplug the fridge for 5-10 minutes, then plug it back in. This can sometimes reset the system.
Inspect the Condenser Coils: Locate the coils (usually at the back or bottom). Use a vacuum cleaner with a brush attachment to remove dust and debris.
Check for Overload: Remove some items from the fridge and freezer to reduce the load on the compressor.
Listen for Compressor Sounds: Carefully listen for any clicking or humming noises coming from the compressor area at the back. Note what you hear.
Inspect the Start Relay/Overload Protector: This is usually mounted on the compressor. Look for any signs of burning or damage. (Important: Unplug the fridge before touching electrical components!)
Check the Capacitor: The capacitor is also near the compressor. Look for bulging or leaking. (Important: Unplug the fridge and discharge the capacitor before handling. This component stores electricity and can give you a shock!)
Examine the Inverter Board: The inverter board is usually located in an electronics compartment on the back of the fridge. Look for burned components or signs of damage. (Important: Unplug the fridge before touching electrical components!)
Check the Fridge Settings: Make sure the temperature settings are correct and that the fridge isn’t in a “demo mode” or other special setting.
Observe the Fridge for 24 Hours: After performing the above steps, allow the fridge to run for 24 hours to see if the compressor starts working.
Check the Door Seals: Make sure the door seals are clean and create a tight seal. Leaks can cause the fridge to work harder.

Fix the Issue Without Buying Parts

Sometimes, you can resolve the issue without immediately replacing parts:

Hard Reset: Unplugging the fridge for an extended period (several hours) can sometimes reset the control board and resolve minor glitches.
Coil Cleaning: Regular cleaning of the condenser coils is crucial for efficient operation and prevents the compressor from overheating. Do this every 6 months.
Proper Loading: Avoid overpacking the fridge, which can restrict airflow and strain the compressor.
Check the Fan: Ensure the condenser fan (near the compressor) is spinning freely.

When Replacement Might Be Necessary

If the troubleshooting steps don’t work, you might need to replace a part. Here are some common culprits:

Start Relay/Overload Protector: $20-$50 USD.
Capacitor: $15-$40 USD.
Inverter Board: $100-$300 USD.
Compressor: $300-$800 USD (including labor – best left to professionals). Replacing the compressor itself is a complex and expensive repair and is usually a sign that the fridge may be nearing the end of its life.

Safety Warning

Always unplug the refrigerator before performing any repairs.
Avoid working on electrical components if you are not comfortable with electrical work.
Keep the work area dry to prevent electric shock.
Discharge capacitors before handling them, as they can store a dangerous electrical charge.

Tools You May Need

Screwdrivers (Phillips and flathead)
Vacuum cleaner with brush attachment
Multimeter (for testing electrical components – optional)
Pliers
Work gloves

FAQ

Here are some frequently asked questions:

Q: How do I know if the compressor is actually the problem? A: If the fridge is warm, you hear no humming, and you’ve checked the other components, the compressor is likely the issue.
Q: Can I replace the compressor myself? A: Replacing the compressor requires specialized tools and knowledge of refrigerant handling. It’s best left to a qualified technician.
Q: Why is my LG fridge compressor running constantly? A: This could be due to dirty condenser coils, a refrigerant leak, or a faulty thermostat.
Q: How much does it cost to repair an LG fridge compressor? A: The cost can range from $100 to $800 or more, depending on the problem and whether you need to replace the compressor.

Conclusion

Troubleshooting a faulty LG inverter fridge compressor can seem daunting, but by following these steps, you can often identify the problem and potentially fix it yourself. Remember to prioritize safety and take your time. If you’re unsure about any step, it’s always best to call a qualified appliance technician. A little DIY effort can save you money and keep your fridge running smoothly!