Completed furnace tune-up on 17-year-old FRP unit. Replaced customer-supplied filter, verified clean blower within specifications, and checked electrical components. Noted inducer motor drawing excessive amperage (4A vs. 0.24A specification) and observed concerning areas on heat exchanger, though no visible cracks were found. System initially cycled off without error codes but performed normally during extended testing with proper 45° temperature rise. Customer informed about inducer performance concerns, heat exchanger condition, and benefits of maintenance agreement.
