Hello all. Recently purchase a new KATO F7A Santa Fe livery. Installed a TCS decoder and it runs as it should except it sounds like coffee grinder. I called the shop I purchased it from and they said they don't deal with warranty issues and I should call Kato USA. Kato said they could fix it but I would need to pay for shipping to them. Now this is one of Kato least expensive locos so paying in the neighborhood of $40 Canadian for shipping "did I mention I'm in Canada" doesn't seem worth it. The rep from Kato agree that the shipping cost may not be worth it and the shop should take it back for a refund given that its brand new but the shop will not budge on there return/warranty policy. Is there something I can do to get rid if the grinder sound? Thanks.