AC system is intermittently shutting off. Found some water in the float switch. There is heavy amounts of sediment buildup in drain pan and evaporator coil, also there was no P-trap on drain line. Installed P-trap on drain line and recommended having evaporator coil pulled and cleaned with a UV light installed. Client needs to think about options and will get back to us. Removed some of the sediment in the drain pan so that drain can properly drain for now, however, problem will continue to occur unless system is thoroughly cleaned. Offered client an annual membership.