Customer called in after our service and requested service today. Arrived to find thermostat blank. Went to attic and verified. It was not the in-line float switch. I jumper to Y and made air conditioner. Come on manually. Went to thermostat and popped it off the subbase and verified 24 V was present. Thermostat back on and system came on. Unsure at this time if that was the original thermostat with the home owner. No charge today.