Always check first
When you have a smart thermostat there are more than 2 things to look at when it breaks down before you go plus call your local heating plus a/c supplier; Many reasons a smart thermostat may not be working could be unquestionably fixable on your own without having to pay a few hundred bucks for some sort of Heating and A/C home services call to the local heat plus cooling system supplier! You could have an issue with the app itself that controls it.
It may not be configured right.
Or the configuration could slip off in a way if you happen to reset your ipad or cell iphone that it is on. You can repair this yourself by simply reading the instruction manual on your smart thermostat. Then of course the most typical error in judgement with a smart thermostat is when the batteries die. Many people forget that it only takes a few batteries you can buy at your local grocery store to repair the problem, but a lot of people suppose their central heating plus air conditioner has broken down when this happens. I have seen this happen a lot with friends of mine the first time the battery dies. So the bottom line here is that you always want to check plus problemshoot all possibilities before calling your local heating plus a/c supplier for an Heating and A/C service call to repair a smart thermostat, but while smart thermostats are fantastic to have plus save currency, they can also be quite problemsome at times. And this is exactly what you have to watch for.