Cleaned & checked condensing gas furnace. Inspected heat exchanger & flue venting. cleaned burners & flame sensor. Checked filter. Checked drain. Clean and check humidifier, replace pad, checked water flow and drain. Blower: 5.2A . Inducer: 1.88A . Gas pressure: 3.4 inches water column. Temperature rise: 62 . Supply: 132 . Return: 70 . Rear system: system amps: 2.1. Supply air: 96. Return: 75. Office: Supply: 124. Return: 84. Bedroom: indoor unit shut off and would not run. Retrieved fault code. Indoor air sensor fault. I bypassed drain pan level sensor wiring to correct fault code. Need to replace drain pan level sensor. Suggestions: need to add humidifier to maintenance plan. replace drain pan level sensor for indoor unit in second-floor bedroom.