Start with the water supply and empty the bin

Before you touch anything inside the ice maker, turn off the water supply. Most machines have a shut-off valve behind or underneath the unit — turn it clockwise until it stops. If you cannot find it, turn off the water to your whole house rather than guess. Unplug the machine from the wall outlet.

Empty the ice bin completely. Throw out any ice that is already made. Wipe the inside of the bin with a clean, dry cloth to remove dust and loose debris. This step prevents old ice from mixing with water during the cleaning cycle.

Key Takeaways

  • Always shut off the water supply and unplug the machine before you start cleaning.
  • Most ice makers need a cleaning cycle run with a commercial ice machine cleaner, not vinegar or household cleaners.
  • The water filter should be replaced every six months or when the ice starts to taste stale.
  • Wipe down the bin, water lines, and exterior monthly to prevent mold and mineral buildup.
  • Hard water areas need cleaning every three months instead of six because minerals build up faster.

Run a cleaning cycle with the right product

Use a commercial ice machine cleaner, not vinegar or all-purpose cleaners. Products like Affresh Ice Machine Cleaner or similar brands made for ice makers are formulated to dissolve mineral deposits without damaging the machine's internal parts. Read the label on your cleaner to find the exact amount to use — most require between 16 and 32 ounces mixed with water.

Pour the cleaning solution into the water reservoir. Turn the machine back on and run it through a full cleaning cycle. The machine will pump the solution through the system and produce cloudy ice as it cleans. This cycle usually takes 15 to 30 minutes. Do not stop it halfway through. When the cycle ends, dump all the cloudy ice from the bin.

Run a second cycle with plain water only to rinse out the cleaner. This removes any leftover chemical residue. Dump that ice as well. Your machine is now ready to make clean ice again.

Replace the water filter

The water filter catches sediment and chlorine before water enters the ice maker. A clogged filter makes ice taste stale or off, and it forces the machine to work harder. Most filters should be replaced every six months, though heavy use or hard water can mean changing it more often.

Find the filter housing — it is usually under the sink or inside the machine itself, depending on your model. Turn the old filter counterclockwise to remove it. Screw the new filter in clockwise until it is snug, but do not over-tighten. Run water through the dispenser for 30 seconds to flush air from the new filter.

Clean the water lines and connections

Mineral deposits and mold can build up inside the water lines that feed the ice maker. If you see discoloration or smell something off when the machine runs, the lines need attention. Disconnect the water line from the back of the machine by turning the compression nut counterclockwise.

Hold the line over a sink and turn the water supply back on briefly to flush it. You should see water and possibly sediment come out. If the line is very clogged, soak it in a bowl of commercial ice machine cleaner for 30 minutes, then flush again. Reconnect the line when it runs clear, making sure the nut is tight but not forced.

Wipe down the exterior and bin monthly

Between deep cleaning cycles, wipe the outside of the machine and the inside of the bin with a damp cloth once a month. This prevents dust from settling and stops mold from starting in damp corners. Use plain water or a mild soap solution — never spray cleaner directly on the machine, as it can seep into electrical parts.

Pay special attention to the rubber gasket around the bin door and any crevices where water collects. These spots are where mold grows first. Dry them with a clean cloth after wiping.

Know when to clean based on your water type

Hard water — water with high mineral content — requires more frequent cleaning. If your area has hard water, run a full cleaning cycle every three months instead of six. You can check your water hardness with an inexpensive test kit from a hardware store, or call your local water utility to ask.

Soft water areas can stretch cleaning to every six to nine months. If you notice ice that looks cloudy, tastes off, or the machine is making strange noises, clean it when ready regardless of the schedule. These are signs that minerals or mold have built up.

Troubleshoot common cleaning problems

If the machine will not run a cleaning cycle, make sure you are using the correct cleaner and that the water supply is actually on. Some machines have a cleaning mode button you must press — check your manual. If the cycle starts but stops partway through, there may be a clog in the water line that needs flushing.

If ice still tastes bad after cleaning and a new filter, the problem may be in your home's water supply itself. Run a test on your tap water, or contact your water utility. If the machine leaks during or after cleaning, check that all connections are tight and that the water line is not cracked.

Frequently Asked Questions

Can I use vinegar to clean my ice maker?

No. Vinegar is too acidic and can damage the machine's internal seals and metal parts. Use only a commercial ice machine cleaner made for this purpose. These products are designed to dissolve mineral buildup without harming the machine.

How often should I replace the water filter?

Every six months is standard for most households. If you have hard water, a large family, or use the machine heavily, replace it every three months. If the ice starts to taste stale before six months, change the filter sooner.

What does cloudy ice mean?

Cloudy ice usually means minerals from hard water are trapped inside the ice. It is safe to eat but tastes flat. Run a cleaning cycle with commercial ice machine cleaner. If it happens again within a few weeks, your water is very hard and you may need to clean more often or install a whole-house water softener.

Can I clean the machine while it is making ice?

No. Always turn off the water supply and unplug the machine before you start. Running a cleaning cycle is different — that is a built-in function the machine controls. Never try to manually clean internal parts while the machine is plugged in.

What if my ice maker has not been cleaned in years?

Run two or three cleaning cycles back-to-back with commercial cleaner, with a water-only rinse between each one. Heavy mineral buildup takes multiple cycles to dissolve. If the machine still does not work properly after that, a service technician may need to disassemble and soak internal parts.