Heat device mystery

[john-weeks]

Me Sense has detected a heat device that runs for about 20 minutes per day, using about 150 watts. Since it is on about once per day, I suspect the defrost on the fridge, but that doesn’t make much sign that it’s running (no noise). Any thoughts on how to investigate this?

[NJHaley]

Post an image of your wave form, like this:

[john-weeks]

Here it is. Not much complexity to it,eh?

[kevin1]

There’s probably a lot of complexity in that teeny spike at the top of the leading edge… But at 1/2 second resolution (at best), most of that is lost.

[senseinaz]

1/2 second resolution?

[john-weeks]

Zoomed in at Max. Still sampled only at 1/2 s cuz that’s what the power meter does.

[john-weeks]

Finally got a chance to unplug the fridge while this device was on. Sure enough, it’s the fridge.