I purchased heater from Costco a few weeks ago. I can’t believe I just disposed of box or I would return. Initially setting up was so frustrating 🤬 and took several tries. I finally ignored the instructions included and on KZfaq and just winged it. After several variations and almost an hour of trying I reconnected it. I can’t tell you how since I tried so many ways. Today while heater was on I touched the (-) temp button to take off H3 and put to 68. Big mistake! This caused the heater to go offline. Here I go again trying to figure out how to reconnect 🤬 I have many smart devices and this is the most frustrating along with only being able to use Alexa voice commands to turn off or on in high heat mode. That’s it! You have to use the app to use any other functions.