I believe the bubble is always reporting a value whenever the HVAC is active, but recently I have suspicions that it may not be that accurate. It’s difficult to tell because the unit has variable speed 48,000 BTU compressor and variable speed air handler, plus a large backup/emergency heat resistive element. I tried to relate the value in the bubble to the compressor per cent that my Nexia thermostat/controller was reporting using SEER and HSPF, but I couldn’t get a reasonably close agreement between the Sense Other Bubble instantaneous values and my calculations, so I won’t show that.
Around 2 AM today, the backup came on and the air handler ran at 100%, and the Bubble was reporting over 15,000 watts for about 12 minutes! The Sense total instantaneous was close to 18,000 watts during the same time, which indicates to me that the Other Bubble is in some ballpark, even if not that accurate. More typically, the bubble shows that the unit is running somewhere between 600 watts up to maybe 2500 watts (including compressor plus air handler). The Bubble is reporting some instantaneous value whenever the heat pump is running; it only disappears when the heat pump shuts down, and returns when it comes on. The real issue I see is that Sense no longer aggregates Other with any degree of accuracy. In my case, the aggregate report for Other shows Zero from mid-August 2019 thru to the end of November 2019.
That is just wrong!
And the other day, HVAC ran continuously for over 24 hours, and the bubble was always on whenever I checked, but the aggregate usage for Other has hours where the use is reported to be zero.
That is wrong, too.
On a final note, I believe the overall total usage reported by Sense agrees closely with my electric bills since I installed it in mid-February 2019.
John G (soccersystems)