Upon arrival, I turned the unit on to cool. The system powered on with no issues. I began thoroughly examining the equipment. Customer stated that the indoor unit was blowing air that wasn’t cold. I checked the electrical in the outdoor unit. The capacitor was right at the bottom side of recommended rating 42.5/45. I removed the 24v common off of the contactor. The contactor ohmed at 19. When I went to plug in the 24 common wire, the contactor began emitting an awful buzzing noise. The last time I heard that noise, it shorted out the thermostat and contactor. I quickly removed the wire and reached out to Jacob for approval to replace the contactor and capacitor under parts/labor warranty. Customer is up and cooling with no further issues. Suggested adding surge protection to the equipment.
