Came out today for a no ac call. Upon inspection I found that the condenser was not operating during a call for ac. I found the low voltage wire disconnected from the condenser. I reconnected the low voltage wire and the system started right up. The compressor is making a loud grinding noise. I connected my gauges and noticed that the system was practically empty of refrigerant. Low side pressure of 16 psi. Goodman system. At this point due to the age of the system it should be updated to a system that utilizes 410-A refrigerant. The system is not operational at this time. I will reach out to Chud's comfort advisor with all the details. See photos.