Same problem with my new Maytag MSD2576VEM. Lowes installed a new (upgraded) water line with the new frig. Lowes came back out to replace the water line. Still had the bad taste. Then they replaced the reservoir and water lines inside the frig. Still has the plastic taste. I guess we'll just have to wait a month or two to see if it goes away. Our old line was copper and we never had a problem.
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Do this for fridge
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