Today in Attleboro, MA, I repaired an HVAC system for a commercial client. The issue involved a malfunctioning Trane XR16 air conditioner. I replaced a faulty compressor and addressed low refrigerant levels by recharging the system with R-410A. Additionally, I installed a new Honeywell thermostat to enhance control and efficiency. System functionality was confirmed through rigorous testing to ensure optimal operation and climate control within the commercial space.