LG Refrigerator Error Code r dS
The defrost sensor on the refrigerator side is shorted or has a wiring fault, so that section's defrost cycle cannot be managed. Reset the power first; a returning code means the sensor assembly needs replacing.
Also shown as: E r dS, rdS
Common causes
- Refrigerator defrost sensor shorted
- Sensor wiring damaged or its connector loose
- Controller assembly failed (it combines the defrost sensor and the defrost fuse)
What to check, in order
- Unplug the refrigerator for about 5 minutes, then restore power and see whether the code clears
- Check for unusual frost or ice around the refrigerator section's rear vents
- If cooling weakens, a full manual defrost (unplug, doors open for at least 24 hours) restores it temporarily while you arrange service
- If the code returns, the defrost sensor assembly needs replacing by a technician
Clear the code and test
- Fix what the checks above found first. Clearing the code without fixing the cause only brings it back.
- Plug the appliance back in and restore its water supply if it has one.
- Run the shortest programme and watch the point where the code appeared before.
- If the programme finishes with no code, the fault is cleared. If the code returns, write it down before calling a technician — it speeds up the diagnosis.
When to call a professional
Most cases are solved by the checks above. Book a technician if any of these apply:
- The code comes back after you have run the checks and a test cycle.
- You smell burning, see sparks or scorch marks, or the breaker trips.
- Water is leaking and you cannot stop it at the tap.
- The fix needs panels opened beyond what your manual describes, or a part tested with a meter, and you are not set up for that.
When you call, give the brand, the code r dS, your model number (on a label inside the door or on the back) and the checks you already ran. It shortens the visit.
Parts that may be involved
Controller assembly (defrost sensor and fuse)Wiring harness
Parts are model-specific. Find your model number first — usually on a label inside the door, on the door frame or on the back — and match the part to that number before ordering.
Questions people ask about r dS
What does r dS mean on a LG refrigerator?
r dS means: Refrigerator defrost sensor error: the refrigerator defrost sensor is shorted or has a wiring fault. The defrost sensor on the refrigerator side is shorted or has a wiring fault, so that section's defrost cycle cannot be managed. Reset the power first; a returning code means the sensor assembly needs replacing.
Can I fix LG r dS myself?
Start yourself: the checks on this page cover the causes you can reach without opening the machine up. If they point to a faulty part, testing or replacing it is usually a technician job.
How do I clear LG r dS?
Fix the cause first — clearing the code on its own brings it straight back. Then restore power and water, run the shortest programme, and watch the stage where the code appeared. If the programme finishes with no code, it is cleared.
Sources checked
- LG Help Library: washing machine error codes
- PartsTown Resource Center: LG washing machine troubleshooting codes
The meaning and checks for this code were checked against the sources above in November 2026. Codes vary by model and region; if your manual lists a different meaning for your exact model, follow the manual.