Performed 3 system homecares. Flushed drain lines and tested heating and cooling. Checked refrigerant pressures. Checked contactors and capacitors. I installed dehumidifier in the basement with new pan safety switch. I also replaced the contactor on the mainfloor condenser and the basement condensation pump after getting the homeowners permission. I tested the new pump and contactor after their installation. I cleared the basement condensation tube with nitrogen. I tested the dehumidifier and dehumidifier pump and verified that they were operating at the end of service call.