LRFXS2503S ice maker not working
Cause 1 of 6The refrigerator was installed or the icemaker connected within the last 24 hours. Source: Troubleshooting: Before Calling for Service > Ice, p. 61
First checkWait up to 24 hours for the compartments to cool and the icemaker to start.
Causes and checks
The refrigerator was installed or the icemaker connected within the last 24 hours. Source: Troubleshooting: Before Calling for Service > Ice, p. 61
- Wait up to 24 hours for the compartments to cool and the icemaker to start.
The icemaker switch is off. Source: Troubleshooting: Before Calling for Service > Ice, p. 61
- Find the icemaker ON/OFF switch and turn it on. See Turn the icemaker on or off.
The ice-detecting sensor is obstructed by foreign substances or frost. Source: Troubleshooting: Before Calling for Service > Ice, p. 61
- Make sure the sensor area is clean at all times.
The icemaker shutoff (arm or sensor) is obstructed. Source: Troubleshooting: Before Calling for Service > Ice, p. 61
- If the icemaker has an ice shutoff arm, make sure the arm moves freely. If it has the electronic ice shutoff sensor, make sure there is a clear path between the two sensors.
The refrigerator is not connected to a water supply, or the shutoff valve is closed. Source: Troubleshooting: Before Calling for Service > Ice, p. 61
- Connect the water supply and open the shutoff valve fully.
A reverse osmosis system lowers the water pressure below the minimum. Source: Troubleshooting: Before Calling for Service > Ice, p. 61
- See the Connecting the Water Line section of the manual.
All 6 causes checked. Contact LG Electronics Customer Information Center: 1-800-243-0000.
Service
If the checks above do not clear it, contact LG Electronics Customer Information Center: 1-800-243-0000, lg.com/us/support/. United States; Canada 1-888-542-2623. Source: Maintenance: Water Filter, p. 54
Other LRFXS2503S problems
- Refrigerator is not cooling4 causes in the manual. First: the display shows OFF because Display Mode is on.
- Frost or ice crystals on frozen food4 causes in the manual. First: frost outside the package comes from doors opened often or for long periods.
- Ice is not dispensing from the door4 causes in the manual. First: the dispenser display is locked.
- Water is not dispensing4 causes in the manual. First: A new installation, a newly connected water line or a recently replaced water filter has trapped air in the system.
- Doors do not close correctly or pop open3 causes in the manual. First: food packages are blocking a door open.
- Interior lights do not workLED interior lighting failure in the refrigerator compartment.
Sources
- Owner's Manual, French Door Refrigerator LRFXS2503, LFXS26973 and related models. LG Electronics Inc. Document MFL67227321, revision Rev.01, 2026-06-22, 76 pages, en-US. gscs-b2c.lge.com. Listed on the manufacturer's support page. Retrieved 13 November 2026.
Page numbers are the numbers printed in the manual. Where this page and the manual differ, follow the manual.