I bought one of these two replace my nearly 20 year old standard thermostat and for a while it worked great. Then after a year or so the temp readings were far from accurate and the scheduling was always incorrect. Not to mention the numerous times it would just randomly go offline. Then after about two years it completely quit. Now I’m back to a standard programmable thermostat.
No, I would not recommend this to a friend.
Response from resideo.comBy Support, February 17, 2022
Hi, this is not something you should expect and we apologize for the experience. We're here to help if you need assistance in the future - just visit our Support Center link at the top of the page to find ways to contact us. -Jerry
I replaced a previous Honeywell smart thermostat with the T9. The old one worked fine, but I changed my wireless router from a 2.4 to a 5 GB version to increase the signal coverage. The old version did not work on 5 GB, so I replaced it with the T9. I changed it out myself with the very well written instructions. It works well and has new features that I use. Geofencing helps keep my energy usage down and I can see the humidity from my phone. The touchpad is much more user friendly and the reset function is much easier. I had to call to get help resetting the connection because it was not at all easy to accomplish.
Easy installation and very satisfied with features
on December 29, 2021
Posted by: JohnK
from Littlestown, PA
Frequency of use:Daily
Gender:Male
Verified Purchase:Yes
Easy to install as long as you follow the instructions. Working well with our 8 year old Heat Pump. We especially like the remote sensor feature as we had been wanting to move the main thermostat sensor to a different location. This made this improvement very easy. The interface on the thermostat as well as the app is nice. So far so good.
I bought this for a second home in a northern climate. It is fantastic being able to remotely view and or adjust the temp inside the home at any time. My installation went well even with the need to add a C wire adapter which was supplied!