Maintaining your HVAC unit is essential to insuring that it will be ready to use when you need it. Just like a car needs routing oil changes and servicing, so do heating and cooling systems. Providing there is not an immediate need, most units should be serviced twice per year if they provide both heating and cooling. If they provide only heating or cooling, then once per year prior to the operating season should suffice. During a routine maintenance appointment, your HVAC professional will inspect your system’s operating system, moving parts, safety controls and the thermostat to insure that they are in complete working order. In addition, they will lubricate the moving parts per the manufacturer’s specifications, clean and change the filter and insure the proper voltage and amperage for your system. This is essential for the optimal operation of your system.