On Tue, 28 Jul 2015 12:23:15 +0000 "Ingles, Raymond" <Raymond.Ingles at dynatrace.com> wrote: Ray, Plug the power supply into a good power filter/battery back up. We've seen all kinds of electronic controls fail this year due to power spikes or brownouts. -- Best Regards, Peter The Plumber <petertheplumber at att.net>