LG Dryer Add Error Code — What It Means
The Add message on your LG dryer indicates a water supply error for steam operation. The dryer has detected that there is not enough water in the steam feeder to complete a steam cycle. This is not a heating, venting, or door-switch fault. The machine is asking you to fill the steam feeder drawer to the MAX line with tap water and confirm the drawer is completely closed. This code only appears when you have selected a steam cycle and the dryer cannot access sufficient water to generate steam.
Common Causes
- Empty or low steam feeder The steam feeder drawer is empty or water level is below the MAX fill line.
- Steam cycle started without water A steam cycle was selected before the feeder was filled to the MAX indicator.
- Feeder drawer not fully closed The steam feeder drawer is not seated properly or is partially open.
- Distilled water used Distilled water was placed in the feeder instead of tap water as specified by LG.
- Control logic fault After proper fill and reset, the control board still reads the feeder as empty or disconnected.
- Steam delivery path obstruction A blockage or disconnected line prevents water from reaching the steam generator after the feeder is filled.
Step-by-Step Fix
- Confirm you selected a steam cycle on the control panel, since the Add message only appears during steam operation.
- Open the steam feeder drawer and fill it with tap water to the MAX line. Do not use distilled water.
- Push the steam feeder drawer completely closed until it clicks and is fully seated in the opening.
- Pause the current cycle if running, then power the dryer off by unplugging it or tripping the circuit breaker.
- Wait at least one minute, then restore power to the dryer to perform a control reset.
- Restart the steam cycle and monitor whether the Add message clears after the reset and refill.
- If the code persists after reset, refill, and proper drawer closure, request service from an LG-authorized technician.
Parts Often Needed
| Part | Notes |
|---|---|
| LG steam feeder drawer assembly | Amazon | Replacement if the drawer is cracked, will not seat properly, or internal sensors have failed. |
| Steam generator assembly | Amazon | Service-level component if water delivery path or internal steam hardware is faulty after feeder checks. |
When to Call a Pro
If the Add message continues to appear after you have filled the steam feeder to MAX with tap water, confirmed the drawer is fully closed, and performed a power reset, the issue likely involves the steam delivery path or control logic that LG does not publish for DIY repair. At that point, contact an LG-authorized service technician who can access service-mode diagnostics and verify whether the steam generator, water lines, or control board require replacement.