Product review (5 stars): Refrigerator clicking & high pitched whistle repaired (didn't need compressor) Don't wait until frig stops cooling.
I had a frequent clicking and high pitch whistle sound from refrigerator. Sounds was coming from the compressor area. Only part there (other than compressor $$$) is the run capacitor and relay. So I replaced the capacitor / relay, and noise stopped and refrigerator started cooling better.  Replace this part at first sounds of clicking / whistling - while refrigerator still cools.  Fixed my Amanda / Whirlpool, without replacing the compressor. Before replacing compressor ($$$), try run capacitor. Run capacitor / relay is typical problem, not the compressor. This was an exact replacement for less than 1/2 the price of local appliance parts stores. T