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Okay, usually when the ice tastes funny the icemaker is usually the cause, the Teflon in the icemaker well with the cubes are made will pick up stuff in the water and deposit it in the Teflon, how old is the icemaker? Is it the same age as the refrigerator? 15 to 18 years? There's not much between the fill valve in the refrigerator and the icemaker in this model just a tube that runs up the back of the refrigerator into the freezer section on the backside of the refrigerator if you pull away from the wall, they can also be a bad taste from the plastic tube that runs from the valve up to the icemaker so you may want to change that tube also, as far as the water leaking into the refrigerator section you have a clogged defrost drain in the freezer. If you remove the back panel inside the freezer behind your food and icemaker you will see silver coils, in the middle underneath those coils you will probably find a sheet of ice, this ice is covering the drain hole, which will need to do is get some really hot water (preferably boiling) and pour it on the ice until all the ice melts and the drain drains freely, you probably won't see the hole because he will be ice over it so you need to melt the ice before you will see the hole, we have run into this problem a lot so it's pretty easy fix though, here is a diagram of the freezer, you will need to take part number 201 out, you will probably need to remove the icemaker also so you can get the back out, a lot of the odor is probably coming from the ice in the freezer covering the hole, once you get it apart you'll be of the clean it and if you have a steam cleaner you can clean the coils also, this should eliminate the smell in the freezer and refrigerator sections, I hope this information is useful, thanks, Bryan