Performed routine 8-9 furnace tune-up on 2-year-old system with Family Rewards plan. Inspected and cleaned standard components, confirming proper operation. Identified issue with fresh air intake vent discharging directly onto mechanical room floor near hot/cold manifold, likely contributing to customer's reported pipe freezing problem. Recommended rerouting fresh air intake to prevent cold air from pooling at floor level and provided option for follow-up service to implement solution.
