LG refrigerators have well-known ice maker issues. Here is how to diagnose and fix the most common problems.
No Ice Production
### Check the Basics First - Verify the ice maker is turned ON (check the arm or switch) - Verify the freezer temperature is at or below 0 degrees F - Check that the water supply valve behind the fridge is fully open - Check that the water line is not kinked
### Water Inlet Valve If the ice maker is not getting water, the water inlet valve may have failed. You can test it by checking for water at the fill tube in the freezer. If no water flows during a fill cycle, the valve is likely bad. Cost: $30-60.
### Ice Maker Assembly LG has had recalls and known issues with certain ice maker assemblies. If the ice maker itself has failed, the complete assembly replacement is the fix. Cost: $60-120.
Small or Hollow Ice Cubes
This almost always indicates low water pressure or a partially clogged water filter. Replace the water filter first (you should be replacing it every 6 months anyway). If cubes are still small after a new filter, check water pressure at the inlet valve — it needs at least 20 PSI.
Ice Maker Leaking
### Cracked Fill Cup The fill cup directs water from the fill tube into the ice maker mold. If it is cracked or misaligned, water spills into the freezer and forms ice buildup. Cost: $5-15.
### Defective Water Inlet Valve A valve that does not fully close will drip water continuously, causing ice buildup and leaking. Replace the valve.
Ice Tastes Bad
Replace the water filter. If ice still tastes bad after a new filter, flush the water system by dispensing 3-4 gallons of water through the door dispenser. Old ice absorbs freezer odors — dump the entire ice bin and start fresh.
Finding LG Parts
Search your LG model number (starts with LR, LF, or LT for refrigerators) on PartHawk. See every ice maker assembly, water valve, and filter across 20+ suppliers with real-time pricing.