LG Refrigerator r2 Error
r2 is documented in LG's digital and analog list only — it is not among the codes in LG's Er guide, which is why no Er reset is printed on this page.
What to check first
- Code read exactly (r2)
- No borrowed reset attempted — none is published for this code
- LG service requested with the model number
r2 is a temperature sensor fault. LG's list locates this one precisely: the R2 sensor is in the lower part of the refrigerator section, detects the internal temperature, and transmits it to the PCB.
Safety first
- Sensors live inside the cabinet, wired to the main board — do not open the cabinet to reach them. LG provides no owner troubleshooting procedure for this code in the cited consumer source; its published instruction is to request service.
- Stop condition: stop using the machine and unplug it — and do not run it again until it has been checked — if you smell burning, see smoke, find damaged electrics (a scorched plug, a melted or cut cable), or water is leaking in quantity.
Common causes
The sensor itself is faulty
LG's list locates this one precisely: the R2 sensor is in the lower part of the refrigerator section, detects the internal temperature, and transmits it to the PCB. LG's sensor section states the consequence plainly: when a sensor fails, the display shows an error code and the performance of the product is reduced — the board is steering the refrigerator with a broken thermometer.
The lower refrigerator compartment is steered blind
The R2 reading covers the lower section — crisper and drawer territory. LG's general sensor note is the documented consequence: with a failed sensor, the performance of the product is reduced.
Step-by-step checks
- Note the exact codeRecord the display form (r2) and what the affected compartment is doing — the sensor's job is temperature reporting, so its symptom is wrong or drifting temperatures.
- No reset is published for this code — do not borrow oner2 does not appear in LG's Er guide, so the Er family's 5-minute reset is not published for it, and this page does not borrow it. LG's digital and analog list — the source that documents r2 — carries one instruction for its fault codes: request service.
- Request serviceQuote the exact code (r2) and the model number. Unlike its R1 counterpart, r2 is not in LG's Er guide, so no reset is published for it.
When to call a technician
r2 is a service code from the start: LG's only published instruction for it is to request service. Quote the exact code and the model number; the technician works from the model manual, which is also where this code's component-level diagnosis lives.
Model differences
| What you have | What changes |
|---|---|
| R2 vs R1 | r2 is the R2 sensor, lower refrigerator section. rS is R1, upper section. LG documents both, but only R1 (as Er rS) appears in the Er guide — which is why this page carries no Er reset and the rS page does. |
| Which models have R2 | Models with a single refrigerator sensor report through R1/rS. A displayed r2 means your model carries the second, lower sensor — the codes are model-dependent, and LG's lists are created for all models. |
One-page checklist — r2
- Code read exactly (r2)
- No borrowed reset attempted — none is published for this code
- LG service requested with the model number
Official LG references
Frequently asked questions
Can I keep using the refrigerator with r2 showing?
LG publishes no use rule for r2 — its list's instruction for the code is to request service. What LG does say for its sensor family is that a failed sensor reduces the product's performance, because the board no longer receives true temperatures.