10-16-23 AC is not working in the great room Found the north carrier RTU not working. Unit did not have power to it. When I tested the incoming voltage it was all over the place acting like a partially tripped breaker. The circuit breaker is located in the kitchen storage room breaker #2 It was not tripped. I left the breaker off, remove the electrical panel for the disconnects switch on the unit. Found the incoming connections loose. Re-landed all incoming power connections.i Turn the power back on system is working at this time While on site, I checked the south great room RTU unit and also the kitchen RTU. They were also loose on incoming power, but they were working all three units. Income connections are tight.