Quick answer
Let the washer reduce suds, then use less HE detergent on the next load.
Safety note
Disconnect power before opening panels or touching wiring. If water is leaking near electricity, stop and call a qualified technician.
Related problem hub
See more excess suds appliance codes across other brands and appliance types.
What sUD means
On many LG washer models, sUD belongs to the excess suds category. The appliance is detecting too much foam, which can block normal draining or sensing.
Codes and exact steps can vary by model number, production year, and regional design. Use this guide as first-pass orientation and confirm model-specific details with the manufacturer source listed below.
Before you start
Write down the full model number and the exact display text before changing parts or clearing the control. Similar-looking codes can map to different model families, and a reset can erase useful timing clues.
If the appliance shows active leaking, a burning smell, smoke, gas odor, repeated breaker trips, or water near power, stop this checklist and use qualified service.
Common causes
- Too much detergent
- Non-HE detergent in an HE washer
- Soft water plus normal detergent amount
- Residue from prior cycles
Recommended check order
- Confirm the model number and exact code spelling.
- Pause the cycle and let suds settle.
- Run a rinse/spin or clean cycle without adding detergent.
- Use less detergent on the next load.
- Use HE detergent only when the washer requires it.
- Run one controlled reset only when the appliance is dry, stable, and safe.
- Stop if sUD returns immediately or appears on an empty test.
Safe checks before service
- Pause the cycle and let suds settle.
- Run a rinse/spin or clean cycle without adding detergent.
- Use less detergent on the next load.
- Use HE detergent only when the washer requires it.
What not to do
- Do not bypass locks, sensors, fuses, or leak protection to force a cycle.
- Do not open powered panels or touch wiring for a code check.
- Do not assume one display code proves one specific part has failed.
Stop and call a technician when
- Suds are not present but the code repeats.
- The washer will not drain after suds settle.
- You see water leaking from the door or dispenser.
FAQ
Is sUD always a broken part?
No. On a LG washer, sUD usually identifies a excess suds category. A blocked hose, dirty filter, uneven load, or unsafe operating condition can trigger a code before a part failure is confirmed.
Can I reset sUD?
A single power reset can be reasonable after visible checks are complete and the appliance is safe. If sUD returns immediately, treat it as an active fault rather than a nuisance message.
Why does model number matter?
Brands reuse similar code text across model families. The model number controls the exact manual steps, access points, and service boundary.
Aliases and related display text
People may search for this same condition using different capitalization or alternate display forms.
- sUD