Yes, electrical connection and wiring issues in HVAC systems can be detected using building automation system (BAS) data. BAS data can provide insights into system performance, energy consumption, and equipment operation, which can help identify potential electrical connection and wiring issues. For example, unusual energy consumption patterns or equipment malfunction alerts can indicate electrical connection or wiring problems. By analyzing BAS data, facility managers and HVAC professionals can detect issues early, reducing downtime and repair costs.