Arrived onsite for a leak from the RTU AC condensate system. Observed water coming from the pressure relief flaps. Cleared the condensate trap and blew out the condensate line, removing debris. Primed the trap and confirmed proper operation, with no further water observed leaking from the pressure flaps. Advised the customer that if the issue persists, the unit may need a deep clean of the condensate tray and an inspection for possible leaks.