[RFI] Samsung refrigerator RFI

Mel Crichton kj9c at iquest.net
Wed Aug 8 14:13:50 PDT 2012

My wife was so proud of herself when she bought a new Samsung side by side 
refrigerator with energy saving compressor. Yes, it runs quiet and doesn't 
use much juice, but the compressor drive has a 5 KHz supply, and as luck 
would have it, it wipes out all the HF bands every 5 KHz. To make matters 
worse, beside the 5 KHz birdie there's serious hash between the birdies. If 
I want to operate, I kill the breaker to the refrigerator. This isn't doing 
the fridge any good. I threatened to return the fridge but she threatened 
other things. I may find a way to make it self-destruct.

I called Samsung  USA and they kept me on the phone for a half hour looking 
for any tech support inside Samsung USA who might know of a fix. (My guess 
is, inadequate shielding and probably a square wave generator). No dice.... 
they are not aware of this problem.

Any help out there? The warranty isn't expired yet, but I will be removing 
screws in the next few days. I may get lucky with some simple shielding 
(Already wrapped the AC cord in ferrites)

In the meantime, BEWARE of Samsung energy saving refrigerators. If you are 
considering any top-end refrigerator, take a portable radio  with you to the 
appliance store and make them turn the unit on to full cooling.

Mel KJ9C 

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