Which part is usually at fault for LG error SUD?

The most commonly implicated component is the detergent system.

What is the first thing to try for LG error SUD?

Use no more than the recommended amount of detergent and reduce it until the sudsing stops.

Error SUD Degraded US market

SUD on a LG washing machine usually means: Excess foam was detected and the wash paused to disperse it.

Fix it fast: Reduce detergent. Full ranked steps below.

Manufacturer source Updated Oct 17, 2026 View source

Try these in order. Stop when the code clears.

1 Reduce detergent
Easy
- Use no more than the recommended amount of detergent and reduce it until the sudsing stops.
Source

An over-current condition was detected in the motor drive circuit.

The door could not be confirmed locked before the cycle started.

The door-latch switch is not reading the door as closed. On a LG Washing Machine, code DL points to the door latch switch.

A foreign object or jam was detected between the drum and the pulsator.

Water rose past the safe threshold, indicating an overfill. On a LG Washing Machine, code FE points to the water inlet valve.

Water did not reach the required level within the fill window, indicating an inadequate supply.

Have a different code? Look it up instantly.