What E1, E4 (Steam Function Models) Means
E1 and E4 apply only to LG dryer models with a steam function and indicate an issue with the steam-generating component inside the dryer, per LG's dryer Help Library article.
Common Causes of E1, E4 (Steam Function Models)
- Steam-generating component (heater) fault
- Temporary control glitch affecting the steam function
🔧 One Safe Check You Can Try
Unplug the dryer, wait a minute, reconnect, and try the cycle again to rule out a temporary glitch.
⚠ Why You Shouldn't Go Further Than That
- If the reset doesn't clear E1/E4, the steam heater component needs a technician's inspection and likely replacement, since it's a sealed part inside the dryer's steam system.
Opening a panel to inspect or repair something yourself doesn't automatically cancel your manufacturer's warranty — but it can risk accidental damage, and some manufacturers do have specific service conditions. Check your product's warranty terms, or ask us, before deciding.

