>Five if he lives in an area prone to electrical surges. Many fridges have DC compressors and decent enough input filtering, that should be no issue. However,

>Five if he lives in an area prone to electrical surges. Many fridges have DC compressors and decent enough input filtering, that should be no issue. However, the electronics themselves are another matter. Most fridges nowadays have defrost cycles controlled by the said processors, with the latter being prone to even software issues. Some fans may not need a replacement, while the fans are cheap and ubiquitous reaching them is another story.