[b] My refrigerator Siam hesi620ss is not freezing in the compartment above the freezer, the freezer is composed of 4 compartments and two drawers in all of them freezes perfect except in the above. We are with problems of power of light I even put a protector for the light strokes and these days I noticed that it was off ... the light a disaster ... can that be why? Now in -18 it marks me and I estimate it means error and I put it in -20 and there if the error goes away ... was the temperature lacking lower? I would appreciate an orientation thank you very much! [/B]

Yes unfortunately it can be because of the light, you would have to measure when you have light what is the voltage that the company sends you.

You need to stabilize the electric current, because if you work like this, you can damage the compressor, well, better turn it off, greetings