Direct answer
On the covered LG dryer platform, d r n, drn, OE means the water container is full, the drain hose is kinked or pressed, or the drain pump is filled with air — LG's own three causes for this code. First, check the water container is empty and fully inserted; pull it out level with both hands, empty it, and push it back until it clicks.
Definition versus diagnosis
The display names a detected condition—not an automatically failed part.
What this covers
- LG dryer models covered by the cited manufacturer code family
- Displayed code or documented alias: d r n, drn, OE
- The operating stage and conditions described by the source
What it does not cover
- ×Another appliance type or original-manufacturer platform
- ×A code that merely resembles these characters
- ×Internal live electrical, gas, sealed-system or control-board repair
Verify the exact code and model
ReversiblePhotograph the complete display and model label. Code aliases in this record: d r n, drn, OE. LG vented, hybrid condensing and heat-pump dryers. Several codes apply only to one platform — LG states E13 appears on Hybrid Condensing Dryers, and E1/E4/Add/E05 only on models with the steam function.
Perform the first non-destructive check
ReversibleCheck the water container is empty and fully inserted; pull it out level with both hands, empty it, and push it back until it clicks. Do not clear the display before recording the operating stage and remaining water, heat or load state.
Correct only the documented fault domain
ReversibleStraighten any bend in the drain hose and check it is not pressed or installed too high — LG notes vibration can twist or kink it during operation. Do not substitute a similar brand or product code table for the exact model manual.
Verify or escalate
ReversibleRun only a safe short test that reaches the original stage. If d r n, drn, OE returns, stop repeated resets and use model-specific manufacturer service.
Evidence ledger
Sources behind this answer
Visible sources support the visible claims. Home Product Support records the publisher, the fact used and the review date; community reports can suggest an issue but do not become a published fact on their own.
Exact questions
Common follow-ups
What does d r n, drn, OE mean on a LG dryer?+
the water container is full, the drain hose is kinked or pressed, or the drain pump is filled with air — LG's own three causes for this code.
Can I reset d r n, drn, OE without fixing the cause?+
A reset may clear the display temporarily but does not correct the documented fault domain. Record the code and complete the safe checks first.
Why do I need the complete model number?+
Manufacturers reuse characters across different controls and product platforms. The full model identifies which official code table and service data applies.
When should I stop troubleshooting?+
This is a condensing-dryer condition. If the container and hose are correct and the code returns, request service.
Answer for the exact device and software version shown above.