Went for a tune up call today for heat. Tested for static pressure system is max when in heat for basement unit. Upstairs unit is over max rating when in heat. All electrical components are passing for manufacture specifications for both systems. Did a combustion test is within range for both systems. Inspected heat exchanger no cracks/leaks were detected for both systems. Checked temp split and is passing for specifications for both systems. Did replace filter for customer. Cleaned flame sensor and pressure switch hose for both systems . Both systems are up and running before departure. Thank you for choosing LBA services-Johann