charles Burdick
My Sub-Zero 650 was running warm and after several attempts to clean the condenser and do a hard reset with only limited and temporary success, I called Certifed Refrigeration.
They were responsive and set up an appointment the next day within a two hour time window. The team showed up as promised and after a quick diagnosis, gave me quote and basically replaced all the interior workings of the refrigerator in approx two hours.
Problem solved! A two year warranty and while not cheap, I should be good to go for another ten years.
Highly recommended