LG · Washing machine

LG washer Sud code

ErrorSud

Sud is listed by LG support as excess detergent suds detected. The exact checks and component layout can vary by model and region.

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Source-linked guidance reviewed against LG US front-load washer error codes.

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What the code means

Excess detergent suds detected

Pause the cycle before inspection. Water may be hot; use the model manual before opening a user-accessible drain filter.

Typical symptoms

01Excess foam is visible through the door

02The displayed cycle time increases while the washer runs a suds-reduction routine

03Spinning may pause to reduce the risk of leaking

Likely causes

Start with the least invasive explanation and stop if the check requires internal electrical or sealed-system access.

01Excess detergent suds detected

Safe next steps

1
Do not add more detergent and allow the automatic suds-reduction cycle to finish; it can add significant time
Follow the exact model manual where access or reset steps differ by product series.
2
For the next empty cycle, run RINSE/SPIN to clear remaining foam
Follow the exact model manual where access or reset steps differ by product series.
3
Use only HE detergent and reduce the dose to the detergent maker's amount for the load and water hardness
Follow the exact model manual where access or reset steps differ by product series.
4
Put one pod directly in the empty drum before laundry, never in the dispenser
Follow the exact model manual where access or reset steps differ by product series.

When to stop

Stop if you see damaged wiring, smell burning, find an active leak, suspect gas or refrigerant, or need to remove a sealed electrical cover. Use a qualified appliance technician.