Customer concerned about unit not cooling properly. Checked blower motor operation and inspected equipment cabinet. Strongly recommend pulling and cleaning the blower wheel to help unit breathe properly and keep properly. Checked thermostat calibration and filter location. Checked outside condenser unit and drain line. The condenser unit is not working or running. Open service panel and located the defrost control board and fan relay logic board is burnt out. No rodent or critters inside. Due to age equipment and failure on components, strongly recommended to have comfort advisor speak with customer about upgrading the system to the energy standards of today’s equipment. Customer is interested into new germicidal uvc light to new unit installed. New unit installed will have maintenance inspections and 10 yr warranty on equipment. Customer has approved for comfort advisor to estimate for unit replacement. Tomorrow is next available for comfort advisor afternoon. Comfort advi