Arrived n site to troubleshoot outdoor hvac unit not working. I tested power at the breaker and was getting the correct voltage but was not getting the right voltage at the disconnect. I inspected the wire under the home and didn’t notice any damage. I did notice the wire was laced on the ground and was damp. I replaced the breaker and started getting the correct voltage to the disconnect. I installed a new 50 amp rated breaker for the outdoor unit. I discussed correcting some issues with the outdoor unit wiring with the homeowner and the overall condition of his outdoor unit circuit and disconnect. I also discussed updating the grounding system as well as installing surge protection. I also discussed updating all of his breakers in his main panel. I tested the outdoor unit and it is working as it should.