What does LG Refrigerator Ice Maker Not Working - Causes & Fix mean?

Ice maker is usually switched off at the control panel or water supply is blocked. Turn on the ice maker and check the shutoff valve.

How do I fix LG Refrigerator Ice Maker Not Working - Causes & Fix?

Follow the step-by-step diagnosis below. The most likely fix is identified by checking power, sensor resistance, and control-board signals in order — using a multimeter and the part numbers documented in the parts reference table.

Can I keep running the equipment with this fault active?

Generally no. Faults on Appliance units are emitted when a sensor, safety, or control circuit is outside its operating envelope. Running through an active fault risks compressor, heater, or control-board damage. Diagnose and clear the fault first.

What part is most commonly replaced for LG Refrigerator Ice Maker Not Working - Causes & Fix?

The most frequently replaced parts for LG Refrigerator Ice Maker Not Working - Causes & Fix are listed in the Parts Reference section of this guide with OEM part numbers and typical price ranges. Check the table for direct replacements.

Is LG Refrigerator Ice Maker Not Working - Causes & Fix a DIY repair or do I need a technician?

Sensor swaps, fan motor replacements, and condenser cleaning are typical DIY-level repairs. Anything involving refrigerant, gas, or high-voltage (>240V) work requires a licensed technician for both safety and code-compliance reasons.

LG Refrigerator Ice Maker Not Working - Causes & Fix

LG Refrigerator Ice Maker Not Working — What’s Happening

LG frames this as a symptom, not a fault code. The refrigerator is not making ice. The most common reasons are that the ice maker is switched off, water is not reaching the unit, or the freezer temperature is too warm. LG support also asks whether the refrigerator has been installed for at least 24 hours and whether the freezer is colder than -4°F.

You will not see a specific error code on the display. Instead, you notice an empty ice bin or no ice production over a day or two. The fix starts with basic checks and moves to testing the ice maker assembly and water delivery system.

Jump to Fix

Most Likely Causes

Ice maker switched off The local on/off button, physical switch, or control panel setting is in the off position.
Closed or restricted water supply The household shutoff valve is closed, kinked, or the line has low pressure (under 20 psi).
Clogged or restricted water filter The filter is old or blocked, starving the ice maker of water flow.
Freezer temperature too warm The freezer is not colder than -4°F, so the ice maker cannot freeze water.
Frozen fill tube or water line Ice blocks the plastic fill tube that delivers water to the mold.
Ice bucket jam or clumping Old ice has clumped or the bucket auger is jammed, blocking the sensor.
Faulty inlet valve or ice maker assembly The valve does not open or the motor/assembly does not advance through the harvest cycle.

How to Diagnose and Fix

Verify the ice maker is on by checking the ICE ON indicator or physical switch at the ice room.
Confirm the refrigerator has been installed for at least 24 hours and check the freezer temperature is at or below -4°F.
Open the ice bin and clear any clumps, jams, or ice obstructions, then check that the bin is seated correctly.
Check the house water shutoff valve is open and test water delivery by dispensing a cup of water at the door (if equipped).
Inspect the water filter and try the bypass plug if you suspect restriction or the filter is older than six months.
Look inside the ice room for a frozen fill tube and defrost it gently with warm water or a hair dryer if ice is present.
Run the ice maker test mode by removing the bin, pressing and holding the test button for 3 seconds until the tray turns, and listen for water fill.
If the test cycle does not run or no water flows, verify the inlet valve opens electrically and the ice maker assembly advances mechanically.

Parts You Might Need

Part	Notes
LG ice maker assembly	Amazon \| Complete assembly if motor or mold does not cycle during test mode.
Water inlet valve	Amazon \| Replace if the valve does not open or clicks but no water flows.
LG water filter (or bypass plug)	Amazon \| Change filter every six months or use bypass plug to test flow.

Seeing a code on the display? These match this problem:

When to Call a Pro

Call a technician if the freezer temperature is correct, water flows to the dispenser, and the ice maker still does not run a test cycle. Also call if you are not comfortable testing the inlet valve electrically, disassembling the ice room, or diagnosing a broader sealed-system cooling problem. If the door switch or control board is suspect, a pro with a schematic and multimeter will save time.