Electrolux Dishwasher Screen Filter 154624901 this one?
If they are hard water deposits, there is probably other parts coated with lime as well... try running a cycle with this in it- Ice Machine cleaner, it is safe on the plastic parts of an icemaker and meant to clean things that folks eat off of, so it rinses clean. I would use two bottles and then let it fill the rest on it's own...
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Electrolux Dishwasher Screen Filter 154624901 this one?
If they are hard water deposits, there is probably other parts coated with lime as well... try running a cycle with this in it- Ice Machine cleaner, it is safe on the plastic parts of an icemaker and meant to clean things that folks eat off of, so it rinses clean. I would use two bottles and then let it fill the rest on it's own...