Prior to performing any home performance and diagnostic testing we visually examine the condition of the equipment. This inspection includes the condition of electrical, mechanical & fuel connections, maintenance status, filter condition, blower fan – if accessible, condensation drainage, duct connections, and duct configuration with respect to equipment size. Data taken from the serial # plates are included in the report. This provides us with vital information to determine the maintenance needs, system deficiencies, equipment capability, efficiency upgrade recommendations, and age of the equipment.