I made the dumbest mistake the other day. My gas gas furnace just would not turn on. I freaked out & read online about gas furnace problems. I read that if a gas furnace does not turn on, something major must be wrong. It means the gas furnace overheated & then quit. It also could mean the gas furnace has a large area that is malfunctioning. I instantly called our local Heating & A/C corporation to come in & make this extravagant gas furnace repair. I was prepared for almost a $400 bill for the gas furnace. I was all set to do what it took to have quality heating. A area of myself and others was sad & anticipating having to buy another gas furnace system. The Heating & A/C professional did not even look at our gas furnace. She instantly went over to our control machine & checked it. She took the control machine apart & then told myself and others our batteries were dead. I thought that surely could not be the issue. After replacing the batteries, the heating plan turned on just fine. The gas furnace did not make any upsetting sounds or threaten to turn off. It was just batteries in the control machine that was the problem. The Heating & A/C woman charged myself and others $100 for that issue. She charged myself and others for the time she spent getting to our apartment & her labor. Changing batteries is considered labor? I was entirely peeved after paying that bill. I am never going to make this mistake again. Not only was it a pricey one, although I felt care about such an idiot in front of our Heating & A/C professional.