A:AnswerIt will operate without the c wire, but eventually the faceplate will need to be recharged. The c wire will keep a constant to the unit so that you will never have to recharge the face plate
A:AnswerI just had 2 geek crews over to install this Nest thermostat in my manufacture home. My unit 26 years old, I did not have a C wire to power my current Honeywell thermostat. Batteries power my current Honeywell. For this reason, my airhandler/ heat pump not compatible with Nest. It needs to be powered by a live wire controlled by a breaker vs. AA batteries.
A:AnswerDo not set your Nest Thermostat to "Heat & Cool" setting. If you set it to Heat and then set the temperature to say, 70 degrees, the system will not run until it sense the temperature in the house has fallen to the set temp, then will kick on the furnace again.
A:AnswerYou probably meant to ask ‘will this be a problem’. No problem at all. You can connect with your phone at a later time. Just go to the config setting on the Nest whenever you are ready.
A:AnswerIt could be preheating? I know my livingroom thermostat is set to get to a particular temperature by 9:00 a.m. The thermostat knows about how long it will take to get to that temperature, so it will start earlier, to get it to temp on time. Mine usually comes on almost an hour before, to get to temperature by 9:00
A:AnswerThe learning setting takes place right after you install. My routine is irregular so this wasn’t very helpful. But you can set a daily schedule of when you’d like it turned on and off as well as set the temp at each interval. Super easy to do. You can also override the system by the app if you are away from home as well.