Equipment fault with iced up coil
Resolve a longstanding issue with a case that was suffering from icing up. On first observations of the data it had a low evaporator temperature during a defrost, the evaporator temperature was only just rising above zero. This was causing the case to ice up after several days of operation.
Although the case was iced up it was still able to maintain a product temperature initially (and anyone probing the case at this time would see it as ok at this early stage), however eventually it would not be able to maintain the required temperature and put the food at risk, whilst also using far too much energy in trying.
Without the visibility of data and remote intervention this case could have been left like this and the coil would have iced up on a regular basis.
The usual fix for this would have been for an engineer to have attended the site and manually defrosted the case. This action would have left the case working for a while but eventually icing up again, requiring a return visit by the engineer. Now this setting can be applied estate wide to any cabinet that has the same meta-data as the refrigeration unit discussed in this case