LG Refrigerator Error Code IS: How to Fix It
Medium 30-45 minutes High Severity
Verified June 2026
- Error Code
- IS
- Brand
- LG
- Product Type
- refrigerator
- Severity
- High
- DIY Difficulty
- Medium
- Estimated Fix Time
- 30-45 minutes
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Tools You'll Need
- Flashlight
- Multimeter (optional)
How to Fix Error Code IS
-
Unplug the refrigerator
Always disconnect power before performing any maintenance to avoid electrical shock. -
Check ice maker power switch
-
Inspect ice maker fan
Use caution when reaching into the ice maker compartment to avoid cuts from sharp ice or metal edges. -
Check wiring connections
Handle wiring carefully and ensure power remains disconnected while checking connections. -
Test ice maker fan motor
-
Reset the ice maker
-
Check freezer temperature
Parts You May Need
Ice maker fan motor
Check Price on Amazon
Wire harness connectors
Check Price on Amazon
Ice maker temperature sensor
Check Price on Amazon
Ice maker fan motor
Check Price on Amazon
Wire harness connectors
Check Price on Amazon
Ice maker temperature sensor
Check Price on Amazon
Ice maker fan motor
Check Price on Amazon
Wire harness connectors
Check Price on Amazon
Ice maker temperature sensor
Check Price on Amazon
Ice maker fan motor
Check Price on Amazon
Wire harness connectors
Check Price on Amazon
Ice maker temperature sensor
Check Price on Amazon
Ice maker fan motor
Check Price on Amazon
Wire harness connectors
Check Price on Amazon
Ice maker temperature sensor
Check Price on Amazon
Ice maker fan motor
Check Price on Amazon
Wire harness connectors
Check Price on Amazon
Ice maker temperature sensor
Check Price on Amazon
Ice maker fan motor
Check Price on Amazon
Wire harness connectors
Check Price on Amazon
Ice maker temperature sensor
Check Price on Amazon
Ice maker fan motor
Check Price on Amazon
Wire harness connectors
Check Price on Amazon
Ice maker temperature sensor
Check Price on Amazon
Ice maker fan motor
Check Price on Amazon
Wire harness connectors
Check Price on Amazon
Ice maker temperature sensor
Check Price on Amazon
Ice maker fan motor
Check Price on Amazon
Wire harness connectors
Check Price on Amazon
Ice maker temperature sensor
Check Price on Amazon
Ice maker fan motor
Check Price on Amazon
Wire harness connectors
Check Price on Amazon
Ice maker temperature sensor
Check Price on Amazon
Ice maker fan motor
Check Price on Amazon
Wire harness connectors
Check Price on Amazon
Ice maker temperature sensor
Check Price on Amazon
Ice maker fan motor
Check Price on Amazon
Wire harness connectors
Check Price on Amazon
Ice maker temperature sensor
Check Price on Amazon
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When to Call a Professional
Call a professional if the ice maker fan motor is faulty and needs replacement, if there are extensive wiring issues, or if the error persists after following all troubleshooting steps. Fan motor replacement requires disassembly of the ice maker unit and should be done by a qualified technician.Frequently Asked Questions
What does error code IS mean on my LG refrigerator?
Error code IS (or 1S) on an LG refrigerator indicates a problem with the ice maker fan motor or a sensor disconnection. This prevents the ice maker from operating properly and requires troubleshooting to restore ice production.
Can I still use my LG refrigerator with error code IS?
Yes, you can continue using your LG refrigerator for food storage when error code IS appears. Only the ice maker function will be affected. The refrigerator and freezer compartments will continue to maintain proper temperatures.
How do I reset my LG refrigerator ice maker?
To reset your LG refrigerator ice maker, unplug the refrigerator for 5 minutes, then plug it back in. Alternatively, press and hold the ice maker reset button (located inside the ice maker) for 5-10 seconds. Wait 24 hours to see if normal operation resumes.
Why is my LG ice maker fan not working?
The LG ice maker fan may not work due to ice buildup blocking the blades, a faulty fan motor, loose wiring connections, or a malfunctioning control board. Check for physical obstructions first, then inspect electrical connections.
How much does it cost to fix LG refrigerator error code IS?
Repair costs for LG refrigerator error code IS vary depending on the cause. Simple fixes like cleaning or resetting cost nothing. If the ice maker fan motor needs replacement, expect to pay $150-$300 for parts and professional installation.