Run the self-clean cycle on your ice maker
Most modern ice makers have a built-in self-clean mode that runs automatically or at your command. This cycle uses hot water and sometimes a cleaning solution to flush the water lines and mold where ice forms. The self-clean function is the fastest way to remove mineral buildup and bacteria that collect inside the machine over time.
Check your ice maker's manual or the control panel for a "Clean," "Self-Clean," or "Maintenance" button. Some models start the cycle with a single press; others require you to hold the button for three to five seconds. A few ice makers run self-clean automatically every 24 hours, while others wait for you to trigger it manually. The cycle typically takes 15 to 30 minutes and will pause ice production while it runs.
During the cycle, you may hear water flowing through the machine or see water drain into the bin below. This is normal. Do not open the ice maker or interrupt the cycle once it has started, as this can leave cleaning solution inside the lines.
Key Takeaways
- The self-clean cycle uses hot water to flush mineral deposits and bacteria from the ice maker's internal lines and mold.
- Most ice makers have a Clean or Self-Clean button on the control panel; check your manual to find it and learn how long the cycle takes.
- Let the cycle run without interruption, which usually takes 15 to 30 minutes depending on your model.
- If your ice maker has no self-clean button, you can manually clean the water filter and mold by removing them and rinsing with warm water.
- Run the self-clean cycle every month, or more often if you have hard water or notice cloudy ice.
Empty the ice bin before you start
Remove all ice from the bin before running self-clean. The cycle will drain water and may produce small amounts of cleaning solution or mineral-laden water that you do not want mixed with ice you plan to use. Discard any ice already in the bin.
If your ice maker has a removable bin, take it out entirely. This gives the drain system a clear path and prevents water from backing up. Wipe the bin dry with a clean cloth while it is out, since mineral deposits can collect on the inside walls.
Check that the water filter is not clogged
A clogged water filter will reduce the flow of water during the self-clean cycle, making it less effective. Most ice makers have a filter cartridge located behind the front panel or inside the refrigerator compartment. Check your manual for the exact location.
Hold the filter up to a light source. If you cannot see light passing through it, or if the filter looks brown or gray instead of white, replace it with a new one. A fresh filter costs between $15 and $40 depending on your ice maker model. If the filter is relatively clean, you can rinse it under cool running water to remove loose sediment, but do not scrub it or use hot water, which can damage the filter media.
After replacing or rinsing the filter, run water through the ice maker for 30 seconds before starting the self-clean cycle. This flushes out any loose particles from the new filter.
Know what to do if your ice maker has no self-clean button
Older ice makers and some compact models do not have an automatic self-clean function. You can still clean the internal parts by hand. Start by turning off the ice maker or unplugging it from the wall.
Locate the removable parts: the water filter (if present), the ice mold or evaporator plate, and any accessible water lines. Remove the filter first and replace it or rinse it as described above. Next, remove the ice mold or evaporator plate according to your manual—this usually involves unscrewing two or three bolts or releasing clips.
Rinse the mold under warm running water and use a soft brush or cloth to wipe away any mineral buildup or slime. Do not use abrasive scrubbers or harsh chemicals, which can scratch the mold or leave residue. Dry the mold completely before reinstalling it. Plug the ice maker back in and run it for a few minutes to refill the lines with fresh water before making ice again.
Understand why self-clean matters
Ice makers collect mineral deposits from tap water, especially in areas with hard water. These deposits narrow the water lines and reduce ice production over time. Bacteria and mold can also grow inside the machine where moisture sits, which can affect the taste and smell of your ice.
Running self-clean monthly prevents these problems from building up. If you notice cloudy ice, ice that smells or tastes off, or a drop in how much ice the machine produces, run the self-clean cycle when ready. In hard-water areas, you may need to run it every two weeks.
Replace the water filter on schedule
The water filter is the first line of defense against minerals and sediment. Most manufacturers recommend replacing it every six months, though this varies by water quality and how often you use the ice maker. If you have very hard water or use the ice maker daily, replace the filter every three months.
A clogged filter makes the self-clean cycle less effective because water cannot flow freely through the system. It also reduces ice production and can allow minerals to bypass the filter and enter the mold. Mark your calendar or set a phone reminder when you install a new filter so you do not forget when it is due.
Frequently Asked Questions
How often should I run the self-clean cycle?
Run it once a month as routine maintenance. If you have hard water, notice cloudy or slow ice production, or live in a warm climate where the ice maker runs constantly, run it every two weeks. Some newer models run it automatically every 24 hours.
What if the self-clean cycle does not seem to be working?
Check that the water filter is not clogged—a blocked filter will starve the cycle of water. Make sure the ice bin is empty and the drain is not blocked. If the cycle still does not run, consult your manual or contact the manufacturer, as the control board may need service.
Can I use vinegar or commercial cleaners in the self-clean cycle?
No. The self-clean cycle uses only hot water or a manufacturer-approved cleaning solution. Adding vinegar or other cleaners can damage the internal lines, leave residue, or void your warranty. Stick to the cycle your ice maker was designed for.
Why is my ice cloudy even after self-clean?
Cloudy ice usually means minerals in your water, not dirt inside the machine. Self-clean removes buildup from the lines, but it does not change your water quality. If cloudiness persists, your water filter may need replacement, or you may have very hard water that benefits from a whole-house filter.
Do I need to drain the ice maker before self-clean?
Yes, remove all ice from the bin. The cycle produces water that you do not want to mix with ice you will eat. If your model has a drain plug, make sure it is open so water can flow out freely during the cycle.