My Nespresso Essenza, keeps doing this, only way to fix it is to unplug it and plug it back in.. i'm not sure but it looks like its stuck in descaling mode,
Essenza Plus Bundle | Breville
Amazon.com: NESPRESSO DESCALING KIT INCLUDES 2 UNITS NEW VERSION: Home & Kitchen
Descaling/ detartrage | Nespresso Essenza C99 User Manual | Page 18 / 140 | Original mode
How to Descale your Nespresso Essenza Mini — Organic Nespresso Pods & Capsules - USDA Certified - Artizan Coffee
Amazon.com: Nespresso BEC220BLK Essenza Mini Espresso Machine by Breville, Piano Black : Everything Else