LG Washer Error Code Sud

Sud on an LG washer means the machine has detected too much foam inside the drum during the cycle. The washer automatically pauses and runs a foam removal routine to bring suds down to an acceptable level. Once the foam is cleared, the display shows 'End' and the normal cycle continues. No parts are failing when this code appears.

Yes, it is safe. The Sud code is a normal operational status, not a warning of a mechanical failure or safety hazard. The washer is simply pausing the cycle to remove excess foam and will resume automatically once conditions return to normal. You can leave the machine unattended during this process.

In the vast majority of cases, the Sud code does not require any repair or parts replacement, so the cost is zero. The fix is adjusting detergent type and quantity, which is free. If Sud is appearing alongside other error codes that point to a sensor or control board issue, repair costs could range from around 100 dollars to 300 dollars or more depending on the specific component and labor in your area.

In most cases, you don't need to do anything immediately since the washer handles foam removal on its own. To prevent it from happening again, reduce the amount of detergent you use and make sure you are using an HE-rated detergent if your LG washer is a high-efficiency model. If the code appears repeatedly, run a drum cleaning cycle to clear any detergent residue buildup from the drum and dispenser.

Resetting the washer will cancel the current cycle, but it will not address the underlying cause of the foam. If you restart a cycle without reducing the detergent amount, the Sud code will likely appear again. The most effective approach is to let the foam removal routine complete on its own, then adjust your detergent usage for future cycles.