Unit keeps tripping breaker after an hour or so, explained homeowner. All motors were inspected and tested, a visual was done on all wires and connections, tested contactor, inspected disconnect and main breaker panel. Found a couple loose lugs at the disconnect and breaker. About a quarter turn on the disconnect and 2-3 turns on the breaker. The disconnect is broken, does not impact the units cooling at this time but is a safety concern for other technicians and can result further breakdown if not aware of it. I have also attached a proposal for replacing the disconnect. The system an appears to be performing within manufacture specifications. System is cooling upon departure.