I found the auxiliary pan float switch has come loose and leaned to the left pushing the switch up. This is designed to turn the low voltage off to the system to prevent flooding in the attic during a condensation flooding issue. I straightened the float switch and tightened the screw. I tested operation. The refrigerant pressures are in correct range per manufacturer specifications. All wiring is tight and in good condition. The system is working properly at this time. The customer is interested in additional water safeties but needs to leave at the time of this visit.