The 2012 rheem ac recieved prepaid ac tune up. Duel capacitor at 0. Filter dirty. They might be low on refrigerant cause there is only a 10 degree temp split. She is going to call home warranty company to diagnose this. Today I cleaned the filter with the hose. I changed out the duel capacitor on the condenser. The warranty company would only reimburse $200 for the replacement of the capacitor. The ac was running when I left.