Installation instructions for Heat Pumps was buried in advanced settings. I've installed thermostats before but this time I had to call a HVAC professional because the normal install instructions resulted in heat when thermostat was on cool settings. App also leaves a lot to be desired - wish I bought a Nest or ECOBEE instead
Great thermostat. Tried Ecobee but temperatures not accurate and geofencing cannot use with more than one user. T9 is simple to use and accurate. Very satisfied.
The T9 is great but the installation instructions are poor. I have been a home builder and commercial airline pilot for 30 years. I am very familiar with technology. I followed the instructions carefully. When I first installed the thermostat on my heat pump it was blowing hot air when I selected A/C. The problem turned out to be the configuration of the thermostat which was not mentioned in the instructions. Once installed you have to go into the settings and tell the thermostat that you have a heat pump. I finally figured this out on my own after watching a YouTube video for another thermostat. That turned the installation time into 1.5 hours instead of the 30 minutes it should have been. That said I love the T9. With the remote sensor I can now control the temperature in the room that I need it not in the hall where the thermostat is.