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WASHING MASHINE / TIPS / DIYREPAIR

Step-by-Step Guide for Detecting and Addressing the SUD Error Code on LG Washing Machines

Igal Geiler

Technically Reviewed by Igal Geiler on Feb 09, 2024 | Written by Igal Geiler

LG washing machines are known for their cutting-edge technology. Yet users may encounter occasional challenges. One of the most common issue is the SUD error code, indicating excessive suds during a wash cycle. This guide is dedicated to cover such topics: exploring when the SUD error occurs, identifying the components responsible, and providing effective solutions to resolve this problem.

When does the SUD Error Code Take Place

The SUD error code typically occurs when the washing machine detects an excessive amount of suds in the drum during a wash cycle. 

This overflow of suds can impede the proper functioning of the machine, leading to interruptions in the cycle and triggering the SUD error.

Parts Involved in the SUD Error Code Occurrence 

Knowing the components associated with the SUD error is essential for troubleshooting. They include:

  • Detergent Dispenser: The detergent dispenser is responsible for releasing the appropriate amount of detergent into the washing machine. Overfilling or using the wrong type of detergent can lead to excessive sudsing.
  • Pressure Switch: The pressure switch monitors the water level in the drum. If the suds build up and create excessive foam, the pressure switch signals the SUD error to prevent potential damage to the washing machine.
Component Functionality
Detergent Dispenser Releases the correct amount of detergent into the drum.
Pressure Switch Monitors water level and detects excessive suds in the system.

How to Fix the SUD Error on the LG Washer

Resolving the SUD error code involves a systematic approach to address the root causes of excessive suds. In order to do this, follow next steps:

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Use High-Efficiency (HE) Detergent:

  • Ensure that you are using a detergent specifically designed for high-efficiency washing machines. Using regular detergent can lead to excess sudsing and trigger the SUD error.

Check Detergent Quantity:

  • Review the detergent quantity used per load. Follow the manufacturer’s guidelines and avoid overloading the detergent dispenser. Adjust the amount of detergent based on the load size and soil level.

Run an Extra Rinse Cycle:

  • If you notice excessive suds during a cycle, pause the machine and run an additional rinse cycle. This helps to remove excess detergent from the clothes and reduces the likelihood of suds build-up.

Clean the Detergent Dispenser:

  • Regularly clean the detergent dispenser to prevent residue buildup. Remove any clogs or blockages that may hinder the proper dispensing of detergent.

Inspect for Detergent Residue:

  • Check the drum and door seal for any detergent residue. Clean these areas to ensure there is no lingering detergent that could contribute to excessive sudsing.

Run a Tub Clean Cycle:

  • Periodically run a tub clean cycle using a washing machine cleaner. This helps remove detergent residues and prevents the formation of mold or mildew in the drum.

Conclusion

The SUD error on LG washing machines is often linked to excessive suds during a wash cycle. By using the correct detergent, adjusting detergent quantities, and maintaining a clean detergent dispenser, you can ensure smooth operation and optimal performance of your LG appliances. 

If you still have questions – you may contact our technicians. 

Date of page creation: February 09, 2024

Page update date: February 09, 2024

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