So sad how they don't make things the way they used to. Cases in point, we have an antique microwave at work that has and is working like the day we bought it, back in 1981. It is tested for leakage semi annually, does not leak and works great. At home we have aq cold spot (Sears Roebuck) freezer that is 40+ years old and is still working great. Now-a-days, they make things to last a minimal amount of years so you have to keep purchasing new products. Like I said at the beginning, "SAD".
Answer to: Can I repair my - noisy but cold - microwave oven?