Hello, we have a house we build 3 years ago and live in it only 6 months in the winter. This year in Calif we had an early heat wave so for the third time turned on the air conditioning system. It leaks profusely from the drip pan under the unit installed in our attic. I have heard there are two drain systems for condensation. I checked the drain tubes and all seem to be clear. Can you help me with this problem. I want to mention the system heats and cools quite efficiently. Any help would be greatly appreciated. Thanks....Steve Weiss 209-7723387.