when the compressor starts & runs for a few minutes there is a rattling sound that becomes louder for a time & then quietens down (still remaining loud). it sounds like a condenser tube inside the compressor compartment that is rubbing on the frame. The compartment is sealed so I do not know how to insulate the pipe to stop the rattle. I have checked the fan compartment & the rattle is not from there. If I press firmly on the back of the fridge, the noise level will decrease, but start back as soon as the pressure is released. someone mentioned to me to drill a hole in the back and fill it with expanding foam. However, I do not know how close the condenser tubes are to the back wall, and I do not want to take the chance to pierce one.
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