LG · Refrigerators
LG Refrigerator FS: The freezer-temperature sensor has a fault
THE SHORT ANSWER
The freezer-temperature sensor has a fault
FS indicates the freezer-temperature sensor has a fault. Arrange service; this is not a user repair instruction.
Record FS along with the freezer’s observed cooling condition.
Do not open electrical or refrigeration-system covers. Protect stored food if cooling is unreliable.
WHAT YOU MAY NOTICE
Symptoms to record
- The display shows FS.
WORK THROUGH THE BASICS
Safe troubleshooting checks
Use the checkboxes to keep track as you read. Stop at any warning or step that does not match your appliance.
Contact LG service with the model and full display. Use an independent appliance thermometer to document compartment temperature if available.
What to noteUse the result to decide whether the issue is resolved or needs service.
THE DETAILS MATTER
Scope & troubleshooting notes
Interpret this code in context
The freezer temperature setting is a requested target, not proof that food is currently at that temperature.
YOUR NEXT DECISION
When to stop and get help
Contact LG service if this indication returns or the appliance cannot resume normal operation.
THE EVIDENCE
Sources & verification
Our explanations are editorial summaries of the documentation below. They do not replace the instructions for your exact appliance.
- FS Error Code
LG USA · Manufacturer support · Checked
Error-code troubleshooting; relevant display identified in the article — LG refrigerator freezer-temperature sensor diagnostics.