What r2 (Refrigerator Sensor, Lower) Means
r2 indicates an anomaly in the refrigerator-side temperature detection at the lower part of the compartment (labeled R2 on LG's diagrams), distinct from rS/R1 which covers the upper part. LG's digital-and-analog reference documents this as reducing appliance performance and requiring professional inspection.
Common Causes of r2 (Refrigerator Sensor, Lower)
- Lower refrigerator-compartment temperature sensor has failed
- Sensor wiring has come loose
🔧 One Safe Check You Can Try
A single power-cycle (unplug about a minute, reconnect) is worth trying; beyond that, this is a sensor fault requiring the same kind of technician diagnosis as rS.
⚠ Why You Shouldn't Go Further Than That
- Like the other sensor codes, this component sits inside the compartment liner and isn't accessible without partial disassembly.
- A fridge that can't accurately read its lower-compartment temperature may run less efficiently or unevenly, which is worth having checked rather than living with indefinitely.
Opening a panel to inspect or repair something yourself doesn't automatically cancel your manufacturer's warranty — but it can risk accidental damage, and some manufacturers do have specific service conditions. Check your product's warranty terms, or ask us, before deciding.