Service diagnostic found that the zone control board had failed. The board was passing signal to run the condenser without a call from the thermostats. Options for repair were presented to the customer and she chose to have the zone control board replaced. I replaced the zone control board and function tested the system. The system was now operational. I also performed a AC cool check. No other issues were found. I cleared the condensation drain line and flow tested the drain with two gallons of water. I also treated the drain line. The air filter was replaced with a client supplied filter. The system was running at the completion of service.