One way to tell when your central heating and air conditioner system is overlaboring itself is when you start to see water dripping from the central Heating and Air Conditioning unit. Your heat and a/c system is not in any immediate danger when you see this but. But, you may want to call a heat and a/c professional anyhow at some point to do an Heating and Air Conditioning tune up and check up to see if there are any possible dangers of your central heating and air conditioner system breaking down on you, however central heating and cooling systems can be a bit tricky to maintain sporadically. But when you look for signs of being overworked or anything else, it helps matters. Another sign that your central heating and air conditioner system may be overlaboring itself is if it makes a lot of noise while running. If you hear a hum or rattling kind of sound all the time, occasions are it is overlaboring. Which means you could have a possible air flow issue or maybe even need the ductwork of your central heat and a/c system cleaned out by your local Heating and Air Conditioning professional at the local heating and cooling supplier. There are so numerous things to consider when owning a central heating and air conditioner system. These are just a few to talk about that I mention here. But if you get proper heat and a/c tune ups or check ups, you should be just fine in enjoying the full life of your heating and air conditioner system.