The FVI12 Digital Display is located on the front cover of the FVI12-NG or the FVI12-LP model. FVI12 digital display shows you what temperature the water is when coming out, makes it very easy to adjust the knobs and get that preferred water temperature.
A service rep indicated they don't fail that often. She indicated I just needed to remove the 4 metal screws on the front face and I would have access to the mount for it. Had it replaced in less than ten minutes and worked as I applied power to the unit again. We had great success over the years and looking to maybe get another unit for another house we have.
With a properly sized Eccotemp tankless water heater, you will never run out of hot water and significantly reduce your energy consumption. Eccotemp tankless water heaters are the future of efficiency.