2025 PCSA Heating Check Up Renewal Heating Maintenance Checked wire connections. Made sure thermostats are operating normally. Check the filters and the filters are passable. They did not need to be changed on this check up. Changed humidifier filters.Checked Freon levels and checked defrost. Technician also mentioned to the customer that the contractor on the east outdoor unit is getting worn out and will keep an keep an eye on it on future checkouts.