The number a single cause of heating & a/c method failures is homeowners not having routine preventative service performed on their equipment, regular comprehensive service on your method increases efficiency & extends the life of your system, because just like your car, your Heating, Ventilation plus A/C method needs preventative service to continue operating in good condition! Make sure you have a clean filter daily & change it when it’s dirty… Always have several filters on hand; Consider installing a programmable temperature control, but you can save energy by programming the temperature so the method doesn’t run so much while you are away! The outside condenser unit coils need to be free of dirt, leaves, turf & whatever else may inhibit familiar airflow across the condenser coil.
Check your air handler or gas furnace & vacuum for any dust or debris in & around the unit; Dirt can clog the air flow & it can overwork the equipment, then vacuum the dust from all the air registers around your house.
Check vents & make sure they are clear of furniture, rugs, drapery, etc., to let air flow freely, have your Heating, Ventilation plus A/C method worked on seasonally: Primarily in the Springtime & Fall.