Went for a tune up call today for heat. Tested for static pressure system is passing when in heat for upstairs. Main floor is failing for static pressure. All electrical components are passing for manufacture specifications. Did a combustion test is within range. Inspected heat exchanger no cracks/leaks were detected for both systems.Temp split and is passing for specifications on both furnaces. Cleaned flame sensor and pressure switch hose. Both systems are up and running before departure. Thank you for choosing LBA services-Johann