How to Keep Your Refrigerator Ice Maker Working and Clean

Why Your Ice Maker Stops Making Ice

An ice maker that suddenly stops producing ice usually has one of three problems: a frozen water line, a clogged filter, or a stuck fill valve. The water line freezes when the temperature inside your freezer drops below 0°F for too long, which blocks water from reaching the ice maker tray. A clogged filter happens gradually as minerals from your water supply build up over months. A stuck fill valve means water cannot flow into the tray even when the ice maker calls for it.

Before you assume the ice maker is broken, check whether the ice maker itself is turned on. Most models have a small lever or switch on the side of the ice maker arm—if it is in the off position, no ice will form. If the switch is on and you still see no ice after 24 hours, the problem is likely one of the three above.

Key Takeaways

• A frozen water line is the most common reason ice makers stop working, and you can thaw it by turning off the ice maker and letting the freezer warm slightly for a few hours.
• Replace your water filter every six months, or sooner if your water is hard or you notice ice cubes taste off or look cloudy.
• Clean the ice maker tray and chute monthly with warm water and a soft brush to prevent mineral buildup and odors.
• If water leaks from under the ice maker, the fill valve may be stuck open—turn off the water supply to the refrigerator and call a technician.

Thawing a Frozen Water Line

A frozen water line is easiest to fix yourself. Turn off the ice maker at the switch on the side of the unit, then turn off the water supply valve behind your refrigerator (it is usually a small knob on the wall or under the sink). Leave the refrigerator running but let the freezer temperature rise slightly by cracking the freezer door open a few inches for two to four hours.

Once the line has thawed, turn the water supply back on and switch the ice maker back on. You should hear water flowing into the tray within a few minutes. If you do not hear anything after five minutes, the line may have frozen again or the fill valve may be stuck. To prevent refreezing, make sure your freezer temperature is set between 0°F and –8°F, not colder. A freezer that runs too cold wastes energy and can freeze the water line repeatedly.

Replacing the Water Filter

Your refrigerator's water filter sits inside the fridge or on the back wall, depending on your model. Check your manual to find its exact location. A clogged filter reduces water pressure to the ice maker and can cause it to make fewer cubes or stop altogether. Replace the filter every six months if your water is soft, or every three months if your water is hard (you can test this with an inexpensive kit from a hardware store).

To replace the filter, turn off the water supply valve behind the refrigerator first. Locate the filter housing and turn it counterclockwise to remove the old filter. Rinse the housing with clean water, then insert the new filter and turn it clockwise until it is snug. Turn the water supply back on and run water through the dispenser for 30 seconds to flush air from the line. Your ice maker should resume normal production within 24 hours.

Cleaning the Ice Maker Tray and Chute

Mineral deposits and mold can build up inside the ice maker tray and the chute where ice falls into the bin. This buildup causes ice to taste stale, look cloudy, or smell off. Clean these parts monthly by turning off the ice maker, removing the ice bin, and wiping the tray and chute with a soft brush or cloth dampened with warm water. For stubborn mineral deposits, use a 50/50 mix of white vinegar and water, then rinse thoroughly with clean water.

Never use abrasive scrubbers or harsh chemicals on the ice maker—they can scratch the plastic and damage the fill valve. If you notice black or green spots inside the tray, that is mold, which means the ice maker is not draining properly. In that case, turn off the ice maker and call a technician, because the drain line may be blocked.

Fixing Low Ice Production

If your ice maker is running but producing fewer cubes than it used to, the problem is usually low water pressure. Check that the water supply valve behind the refrigerator is fully open (turn it counterclockwise). If it is already open, the filter is probably clogged—replace it as described above. Low water pressure can also mean the fill valve is partially stuck, which requires a technician to repair.

Another cause of low production is a freezer that is too full. Ice makers need air to circulate around the tray so the water freezes evenly. If your freezer is packed with food, rearrange items to leave at least two inches of space around the ice maker. You should also check that nothing is blocking the ice chute—a piece of ice or a frozen food package can prevent cubes from falling into the bin, which tricks the ice maker into thinking the bin is full and stops production.

Dealing with Leaks Under the Ice Maker

Water pooling under the ice maker usually means the fill valve is stuck open and water is flowing continuously into the tray instead of in timed bursts. This is a safety issue because standing water can damage your refrigerator's floor and create mold. Turn off the water supply valve behind the refrigerator immediately and do not turn it back on until a technician has inspected the fill valve.

A small amount of water dripping from the ice maker into the bin is normal—that is just condensation. But if you see a steady stream or water pooling on the freezer floor, the fill valve needs replacement. This is not a repair you can do yourself, because the valve is connected to the water line and requires special tools to remove safely.

Frequently Asked Questions

How long does it take for a new ice maker to start making ice?

Most ice makers produce their first batch of ice within 24 hours of being turned on. If you have just installed a new refrigerator or replaced a water filter, run water through the dispenser for 30 seconds first to flush air from the line. The first few batches of ice may look cloudy or taste slightly off—this is normal and clears up after a few cycles.

Can I use my ice maker if the water filter is expired?

You can, but you should not for long. An expired filter stops removing minerals and contaminants, so your ice will taste worse and the filter will clog faster. More importantly, a very clogged filter reduces water pressure so much that the ice maker may stop working. Replace the filter every six months to keep ice quality high and avoid pressure problems.

Why does my ice smell like the freezer?

Ice absorbs odors from food in the freezer, especially strong-smelling items like fish or garlic. Store smelly foods in airtight containers and keep the freezer clean. If the smell persists after you clean the ice maker tray and chute with vinegar and water, the ice bin itself may need washing—remove it and wash it with warm soapy water, then dry it completely before putting it back.

Is it safe to use ice from a freezer that has not been cleaned in months?

Ice from a neglected freezer is not unsafe to eat, but it may taste stale or smell off. Mold can grow in the ice maker tray if the drain line is blocked, which is a sign you should clean the tray and chute and check the drain. If you see black or green spots in the ice, do not use it—clean the ice maker thoroughly or call a technician to check the drain line.

What should I do if my ice maker leaks water into the fresh food section?

Water leaking down into the fresh food section usually means the drain line from the ice maker is blocked. Turn off the ice maker and locate the drain line, which is typically a small tube at the back of the freezer. Try flushing it with warm water using a turkey baster or syringe. If that does not work, the line may need professional cleaning or replacement.