Arrived on site for leak through ceiling issue. Went upstairs to the Attic to find out the leak. Saw the emergency condensation pan full to the brim over following. Used homeowners wet vacuum to suck up all the water, about 20 to 22 gallons of water. Used hose to siphon the water out of the wet vacuum from the attic. Left emergency pin empty. Found the door for filter hanging off by some pieces of tape. Put the door on securely and added tape around the edges. Float switch was found outside the condensation pan. Blew out the drain pipe of the condensation , felt some resistance but then no resistance after being blown out. Put three bottles of water inside the evaporator condensation pan to check for leaks. Two leak spots were found from the evaporator coil pan. Informed customer about the leak in the evaporator coil condensation pan. Told homeowner that they can use AC but the pan is going to fill up maybe a month maybe a couple days it all depends on the weather / humidity.