What does Er rS mean?
The fresh-food temperature sensor reading is out of range.
Common causes
- Sensor failure
- Wiring fault
What you can safely check
- Power-cycle the fridge
- Schedule service if it repeats
Safety first. Unplug the appliance (and shut off gas or water where relevant) before inspecting it. Codes and procedures vary by model — check your owner’s manual.
When to call a technician
If the code comes back after these checks, or you see leaks, burning smells or tripped breakers, stop using the refrigerator and schedule a technician. Our team repairs LG refrigerators every week.
Frequently Asked Questions
What does LG refrigerator error code Er rS mean?
The fresh-food temperature sensor reading is out of range.
How do I fix LG code Er rS?
Power-cycle the fridge. Schedule service if it repeats.
When should I call a technician?
If the code comes back after these checks, or you see leaks, burning smells or tripped breakers, stop using the refrigerator and schedule a technician. Our team repairs LG refrigerators every week.
Other LG refrigerator codes
Er CFCondenser fan errorEr COCommunication errorEr dHDefrost heater errorEr FFFreezer fan errorEr IFIce maker fan error
Updated Oct 29, 2026