Since I'm new at some of this home improvement crap I know a lot of you are quite knowledgeable and pointed me in the right direction with troubleshooting and tips so here is the newest one: I *think* my thermostat is going bad or has some issue. Over the last 3 days I have had it set to be a constant 70* and it keeps dipping 4-5* and stays there awhile before it kicks back on again. When it does kick on, the vents are pumping warm air and it eventually does get back up to 70* Q1: Is this a sign of the thermostat starting to fail? Q2: If I need to replace it, is it just a matter of pulling it off the wall then finding a replacement and wiring it in?