If your refrigerator is making brownish or flaky ice, the most likely culprit is the water supply tube to the ice maker — if the line was disconnected or sat with stagnant water for six to twelve months it can discolor and foul the ice, and replacing that tubing usually fixes it. The next thing to check is the ice maker assembly itself; older trays can have a coating that corrodes and flakes off, leaving chunks in the cubes, so swapping the icemaker often stops the contamination. Less commonly, dirty municipal water from a flushed hydrant or broken main can introduce sediment, so discard the old ice and run a kitchen faucet until the water clears before using the icemaker again. It is also possible, though less likely, that residue from an old water filter is shedding into the supply, so change filters every six months. You can enter your model number on RepairClinic.com to find the exact replacement water tubing, ice maker assembly, or filter that fits your refrigerator and get parts for ice maker repair.
01 - Roper Refrigerator Water Supply Tube
During normal use the water supply tubes will have water flowing through them keeping them clean. If the water supply gets disconnected or water is left in the tube and not used for 6 to 12 months, it can become discolored. If the water at the other faucets in the house is ok and you have replaced the water filter you may need to replace the water tubing to the ice maker to resolve the issue.
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If the icemaker tray has a coating, the coating may be wearing off. If you are getting pieces or chunks of material stuck in the ice, check the ice maker tray. If the coating on the tray is corroded and flaking off, replace the icemaker.
A fire hydrant that was flushed or a broken water main can cause dirty water to enter the home. Since the ice maker uses the same water supplied to the kitchen or bathroom faucets, dirty water can discolor the ice. Discard the old ice and run the water for awhile at the kitchen or bathroom faucet until the water clears up before having the ice maker make new ice.
Less Common
04 - Roper Refrigerator Water Filter
If the ice being dispensed is dirty, it's possible that residue from an old water filter is getting into the water being supplied to the ice maker. Water filters should be replaced every six months for optimum water filtration.