Bests & Worsts Reviews from Amazon

Order product based on feedback and research. Installed Sensi Touch Wif-FI Thermostat based on Emerson website and followed instructions. Once installed ONLY the fan would run, compressor would not start, no cold air. Called tech support located in the Philippines, man stated he was trained HVAC technician. Per his request I sent him pictures of my thermostat wiring before I removed, he had change some settings in the advance settings with the heat pump valve, still no cold air. Then he had me jump 3 low voltage wires off the thermostat using a wire nut, then 4 wires using, still not cold air. He said I would need to call a HVAC professional for my DIY project. I said I would just removed the Sensi WI-FI Thermostat and return it and put my old thermostat back on the wall and he said it would not work. I said, I'm sure it will, my HVAC system was running an hour ago with the thermostat I just took off the wall. He said, the old thermostat will not work. He was RIGHT whatever the Sensi Thermostat, advance setting changes to heat pump valve, and hot wiring my system prevents my compressor for starting. I have called Sensi Touch Wi-Fi (Emerson) customer service/tech support twice and still waiting for a manager to call me back. So now, I waiting for a local HVAC repair company to show up to get my HVAC system up an running, spent all weekend in Florida with NO air conditioning.