A:AnswerChances are the other 2 thermostats also have unused C wire in the wall. If you have a unused C wire in the wall, ensure they are connected to C wire in the main zone controller by the side of the HVAC.
In the attached picture of my Zone Controller, only one of the C wire was connected. For other 2 Zones, the blue C-wire was unused and wrapped around the wires. I connected the unused C-wire to the C-port in the box (which provide 24V) and was able to use the Thermostat. Similarly at the thermostat end, the C wire may be wrapped around wires (easy to miss) or is inside the wall and need to be pulled out.
A:AnswerThis thermostat requires a constant 24 VAC to provide power to it (there are no batteries inside like some others). In order to use it, you would have to figure out how to get that voltage to the thermostat. If you're not comfortable doing this kind of work, you'd need to get an HVAC person or electrician to add the wires.
A:AnswerThanks that the reason we had geek squad come out and did the work. They came out and assisted me with looking at the heating system. Than sent some technical out sized everything up before touching any wiring.
Strongly recommend getting the total tech package . Ythan it was $49.00 for installation.
Two other business gave us quotes that were maybe 200., yes than there’s a trip charge.
A:AnswerA C wire delivers constant 24 volt power to run a smart thermostat. For a typical furnace plus AC system there will be 4 wires and the C wire will be a 5th wire. If you don't already have a C wire, it will likely require making a connection at the furnace. You may have an unconnected 5th wire tucked in the wall. If you feel like you can manage connecting or adding a C wire, there are lots of sites on the internet that have information on doing it. But if you don't feel comfortable messing around inside your furnace, call a technician. It is less expensive to call them before you mess up your furnace.
A:AnswerI am pretty sure you can use the thermostat without WiFi but it really is designed for use with WiFi. Without WiFi this thermostat will be no better than a standard programmable thermostat. With WiFi, access from a smart phone and an outdoor temperature reading are the only additional features.
