Written by
Marcus Lindqvist Appliance Care EditorPublished October 26, 2026
VERIFIED
Error coderS
ApplianceRefrigerator
On the display it may read rS or Er rS. The problem lies in temperature sensing at the top of the refrigerator compartment, a zone LG calls R1, and the appliance performs worse as a result.
LG’s wording
It points to a refrigerator sensor that is shorted or disconnected. No troubleshooting appears, so the unit goes to repair service.
Panels with LEDs
On an analog panel the fault is expressed by lit LEDs beside -23°C, -20°C, -17°C and -15°C. LG asks for professional inspection here, and the technician checks the wiring of every sensor for shorts or open circuits.
Sister codes
The lower zone is r2. rF is a fan fault despite the similar look, and Lo is a cold-room warning.
Repair for an LG refrigerator near San Francisco
Dial (415) 223-7887 about rS from San Francisco or the Bay Area. Tell us whether the display shows rS or Er rS, and bring the model number to the call. LG refrigerator repair has background.
Model compatibility: LG reuses codes across series and model years, so rS may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
A fault in temperature detection on the upper refrigerator side (R1) reduces performance.
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
Seeing this code on your LG appliance?
Book a specialist visit for a clear estimate and approval before any repair.
You submit a request with your appliance model and symptom, we confirm an appointment window, and a technician performs an on-site diagnosis. You then receive a clear estimate and decide whether to proceed before any repair begins.
Yes. We provide an upfront estimate after diagnosis. No parts are ordered or installed until you approve the work, so there are no surprise charges.
Replacement parts are selected for the exact model and confirmed with you before ordering or installation.
Service areas are listed on the Locations page. Contact us with your ZIP code to confirm current coverage for your address.
Ready to get your LG appliance working again?
Book a repair online or call us — clear estimates and approval before any repair work begins.
