I entirely dislike it when you spend a chunk of cash on something, and then it breaks on you within a week or so! This is what happened to myself and others when I was talked into getting a wireless control machine from our local HVAC system business, then while I was having one of our proper HVAC system plan tune ups and check ups, the HVAC system specialist was entirely set on selling myself and others this wireless control unit, however he told myself and others that our old dial control machine was on its last legs and that I should get a current control machine sometimes legitimately soon. If I didn’t, it could end up to where I would have a non-toiling central HVAC system system. I had thought about getting a digital control unit, or maybe even one of those brilliant sounding current smart control units. But no, this heating and cooling specialist kept on myself and others about the wireless control unit! Finally, I gave in and figured this wireless control machine had to be the best thing since sliced bread, then otherwise, why would the certified HVAC system specialist from the local HVAC contractor keep bothering myself and others about getting a wireless control machine for our home? Well, here all of us are a week later, and this thing already has broken down! I am about to call the local heating and cooling contractor and go ballistic on them for this scam! The wireless control machine itself may not be a scam, but the one the certified HVAC system specialist just sold myself and others absolutely is! I will not stand for that kind of business!