ErrorCodeDoctor
LG Washing Machine (Combo) SUD error code
The SUD error on your LG washer dryer combo means too many suds were detected inside the drum. The unit automatically adds a suds-reducing cycle which can add up to 2 hours to the total cycle time. If too many suds are detected during spinning the unit stops to prevent leaking. Always use HE high-efficiency detergent and follow the manufacturer's recommended dosage.
Common causes
- Too much detergent was used
- Non-HE detergent was used in a high-efficiency unit
- Powder detergent was added to the liquid detergent cup causing incorrect dispensing
How to fix it
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1
Wait for the unit to complete the automatic suds-reducing cycle — do not interrupt it
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2
Do not add more detergent
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3
After the cycle switch to HE detergent and use only the manufacturer's recommended amount
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4
Do not add powder detergent to the liquid detergent compartment
Related LG Washing Machine (Combo) error codes
SUD error — frequently asked questions
What does the SUD error mean on a LG washing machine (combo)?
Excessive suds were detected — the unit has added a suds-reducing cycle
What causes the SUD error?
The SUD error is usually caused by: Too much detergent was used; Non-HE detergent was used in a high-efficiency unit; Powder detergent was added to the liquid detergent cup causing incorrect dispensing.
Can I fix the SUD error myself?
Yes — this is rated an easy fix that most people can do themselves, typically in No action needed — cycle resumes automatically.
How much does it cost to fix the SUD error?
Fixing the SUD error on a LG washing machine (combo) typically costs $0, depending on parts and whether you do it yourself or hire a technician.
Is it safe to keep using my washing machine (combo) with the SUD error?
In most cases yes, but it's best to address the SUD error soon — see the fix steps below to resolve it.