Heat pumps are one of the most efficient central heating systems and can heat and cool your home for a fraction of the cost of many other heating systems, and Mitsubishi is the leading brand on the market. https://Patch.com/texas/haslet-tx/classifieds/other/522024/why-is-your-outdoor-ac-unit-not-turning-on-and-how-can-it-be-diagnosed-in-haslet-tx