Upon arrival found main unit not cooling properly. This is a two unit condo. Need to get key from guard at gate to access roof. Once on roof I located both units. I walked up to the other unit first and found only the outdoor fan motor running. Found burnt and pitted contactor and out of range capacitor. Also found original surge protector with no lights on it indicating that it has taken a hit.Walked over to the second unit which was initially thought to be the only one with an issue and found the exact same issues. Both of these units are 2015 and the contactor and capacitor’s are both original. It looks like the surge protectors were put on at the time of install. My immediate suggestion is to replace these failed parts. The main unit also seems to be a little low of refrigerant. Based on the readings I am assuming between one and 2 pounds low. I am also suggesting to take advantage of the maintenance plan at least for this year so that you can get discounts on all of these parts an