Why and when to clean your LG ice maker
Your LG ice maker needs cleaning when ice tastes stale or smells odd, when cubes come out cloudy or discolored, or when the machine stops producing ice altogether. Mineral buildup from your water supply, mold, and dust are the usual culprits. Cleaning takes about an hour and requires no special tools—just warm water, white vinegar, a soft brush, and a cloth.
Most LG ice makers benefit from a cleaning every six months if your water is hard, or once a year if it's soft. If you notice a problem before that schedule, clean it right away. A clogged or moldy ice maker won't fix itself, and the longer you wait, the harder the mineral deposits become to remove.
Key Takeaways
- Turn off the ice maker and empty the bin before you start; most LG models have a power switch on the front or a control panel setting.
- White vinegar dissolves mineral buildup; run a vinegar-and-water mixture through the water line or soak removable parts in it for 15 to 20 minutes.
- The water inlet valve, fill tube, and ice mold are the parts that clog most often and need the most attention during cleaning.
- After cleaning, run two or three batches of ice and throw them away before using the ice for drinking or cooking.
Shut down the ice maker and remove the bin
Locate the power switch or control panel for your ice maker. On most LG refrigerators, this is a button or toggle on the front of the ice maker itself, or an on-off setting in the refrigerator's digital display. Turn it off completely—do not just set it to a lower production level.
Open the freezer and pull out the ice bin. Empty any ice into a sink or bowl. Wipe the inside of the bin with a dry cloth to remove loose ice crystals and dust. Set the bin aside; you will not need it during the cleaning process.
Clean the water inlet valve and fill tube
The water inlet valve is where water enters the ice maker from your refrigerator's water line. On most LG models, it sits at the back of the ice maker housing. The fill tube runs from the valve down into the ice mold. Both parts collect mineral deposits and can become clogged.
Mix equal parts white vinegar and warm water in a small bowl. Use a soft brush or an old toothbrush to scrub around the valve opening and the visible part of the fill tube. If the tube is removable (check your model's manual), detach it and soak it in the vinegar solution for 15 to 20 minutes, then brush it gently and rinse with clean water.
If the tube is not removable, use a turkey baster or small syringe to squirt the vinegar solution up into the tube opening. Let it sit for 10 minutes, then flush it with warm water several times. You should see the solution drip out the bottom into the ice mold.
Soak and scrub the ice mold and ejector arms
The ice mold is the metal or plastic tray where water freezes into cubes. The ejector arms are the small mechanical fingers that push cubes out when they are frozen. Both can trap mineral deposits and mold, especially in the corners and crevices.
If your LG model allows you to remove the mold (consult your manual), take it out and soak it in the vinegar-and-water solution for 20 minutes. Use a soft brush to scrub all surfaces, paying special attention to the cube-shaped indentations and the edges where the ejector arms connect. Rinse thoroughly with clean water and dry with a cloth before reinstalling.
If the mold is fixed in place, use a soft brush dipped in the vinegar solution to scrub what you can reach. Wipe away the solution with a damp cloth, then wipe again with a dry cloth. Do not force any parts or use abrasive scrubbers—you can crack the mold.
Flush the water line with vinegar
Your refrigerator's water line carries water from the main supply to the ice maker. Over time, minerals build up inside the line itself. Running vinegar through it helps dissolve these deposits and improves water quality for your ice.
Locate the water line connection at the back of your refrigerator (usually a small plastic or copper tube). If your model has a water filter, you may need to bypass it temporarily for this step—check your manual. Pour the vinegar-and-water solution into the ice maker's fill cup or opening, or use a turkey baster to introduce it into the water inlet. Let it sit for 30 minutes, then run water through the line by turning the ice maker back on briefly and letting it cycle once. Turn it off again and repeat the vinegar flush one more time.
Wipe down the exterior and housing
While the interior parts dry, clean the outside of the ice maker. Use a soft, damp cloth to wipe the front panel, the edges, and any vents. If there is dust or debris around the seams, use a soft brush or an old toothbrush to gently dislodge it. Dry everything with a clean cloth.
Check the area where the ice bin sits for any water pooling or ice buildup. Wipe it dry. This prevents mold from growing in the freezer compartment and keeps the bin from sticking when you reinsert it.
Reassemble and run test batches
Reinstall the ice bin and turn the ice maker back on. The first batch of ice will contain residual vinegar and minerals loosened during cleaning. Make one full batch, then dump the ice. Repeat this for a second batch. On the third batch, the ice should taste and smell normal.
If the ice still tastes off after three batches, run a fourth batch and discard it. If the problem persists after that, the water filter may need replacement, or mineral buildup may be deeper in the water line than a vinegar flush can reach—that is the point to call an LG service technician or a refrigerator repair professional.
Frequently Asked Questions
Can I use a commercial ice maker cleaner instead of vinegar?
Yes. Commercial cleaners made for ice makers work faster than vinegar and are designed not to damage plastic or metal parts. Follow the product instructions exactly, and always run at least three test batches and discard the ice before using it. Vinegar is cheaper and works just as well if you have time to let it soak.
What if ice still won't come out after cleaning?
The ejector arms may be frozen in place or the mold may have a layer of ice you cannot see. Turn off the ice maker, wait 30 minutes, and try again. If that does not work, the mold itself may be cracked or the ejector motor may have failed—call a repair technician.
How do I know if my water line is clogged?
If the ice maker runs but produces no ice, or produces very little, the water line is likely blocked. The vinegar flush described above often clears minor clogs. If water still will not flow after two vinegar flushes, the line may need professional replacement.
Is it safe to drink ice made right after cleaning?
No. Always discard the first two or three batches. Even after rinsing, small amounts of vinegar or loosened minerals can remain. The third batch is usually safe, but if you are sensitive to taste, wait for the fourth.
Do I need to replace the water filter after cleaning the ice maker?
Not necessarily, but it is a good time to check it. If your filter is due for replacement (check the manual or your refrigerator's display), replace it now. A fresh filter will catch any remaining particles and improve ice quality going forward.