Crazy negative power reading, am I rich?


I am seeing something alarming in the energy history. It seems my washing machine consumed -24.000W (or rather produced 24.000W) last week.
(see screenshot)

Either my 120€ washing machine has turned into cash generating renewable energy source, or there is a problem somewhere ;D

Worse: it wouldn’t be that bad if I had a negative power reading (I could ignore it), but since it is so ginomours, the scale of the graph doesn’t allow me to see any other “reasonable” consumption over the period.

It is an AEON Labs Smart Switch (EU), never had a problem with 5 in total.


  • Where can that come from?
  • Is there - I doubt it - any way I could manually delete this measure forever?