Inspection on Lennox furnace shows a bat in the inducer motor. System was locked out on pressure switch did not close or reopened code. Disconnected flue and attempted test with no improvement. Draft was reading 0.35inwc with the pressure switch needing 0.4inwc for satisfaction. Once the bat was removed, test run of the system showed that with no obstruction, the draft was reading 1.1inwc. System is operational in heating. Inspection on Carrier furnace shows no fault codes or error history. System was operating upon arrival. Test ran system and no issues were found or suspected.