Our 3 year old Admiral side-by-side USA-style fridge freezer is making a high pitched whine. This varies in pitch from time to time, and sometimes reverts to its normal, fairly loud, hum, but later comes back. It is a very irritating sound, but more than that, it leads me to believe that the machine may be losing some coolant or has a faulty pump or compressor, even though the machine is still working well. Can anyone diagnose this problem or offer a cure?

Peter from Hackney, February 2010

This does just sound like high pressure refrigerant making a noise within the system and can be normal but irritating.also sounds Just like my ex wife has moved in with you.LOL

John, February 2010

If it were mine I would suspect (hope) that something (probably part of the heat exchanger) is vibrating at its resonant frequency. I would wait for the whine to begin and slightly adjust a levelling foot. As you say - the machine is working well.

Good luck...

Peccavi, February 2010