Disclaimer; I am a new Sense user. Sense doesn’t even have a weeks worth of data to go off yet. I mentioned in another post about Sense detecting a dishwasher when I was sure the dishwasher was not running. I have narrowed it down to what I believe is my air handler, but I’m a little confused by the data.
So first, I waited until Sense detected “dishwasher” and went and started flipping breakers off to see what made it disappear from Sense. First I tried the fridge with no luck. Then I tried breaker 1/3 which is labeled AC. Also no luck. Tried furnace, same thing. Flipped the breaker labeled “Cool Top” and it immediately disappeared from Sense. So I found the right breaker. I’m not the one that labeled these breakers so I’m not sure exactly what is meant by “cool top”, but the only thing that makes sense to me is for this to be the air handler.
But… over the course of last night, Sense would tell me the air handler turned on. It runs for 3 minutes (nearly every time Sense detects it, it runs for 3 minutes) and then turn off. Every single time it would consume about 185w during this period. The time between it turning off and then back on again seems to vary (I wish in statistics, there was an “average time off” or something like that. I have IFTTT setup to log on/offs to a Google Sheet. It looks like it ranges from anywhere from about 20 - 30 minutes to an hour. But here’s the weirdest thing, last night I had the air set to 76 like I always do. The current air temp was 76. The AC unit, nor the fan was actually turning on. Sense would alert me that the air handler turned on and I’d stand on a bar stool and feel and there would definitely be no air moving.
So I’m pretty confident that it’s the air handler using this electricity, but I’m not sure what it’s doing for 3 minutes every 20 - 30 minutes (I think the longer gaps may just be Sense missing a detection halfway) that would consume 185w. This is the model air handler I have, and just to be complete, this is the model AC I have.