HVAC Repair near Old Evans Rd. I received a call from a homeowner who reported that their air conditioner was not turning on at all. After inspecting the unit, I found that the capacitor had failed and needed to be replaced. I also found that the contactor was worn and needed to be replaced. After replacing the capacitor and contactor, I tested the system to ensure it was working properly. The homeowner was happy with my work and relieved to have a working air conditioner again.