Performed annual furnace tune up Rocklin. 7 yr old Goodman split system attic/side yard. System not on at arrival, so we turned system on, unit cycled thru stages and ran ok. Washed filter, not too dirty. Checked blower ok, checked blower capacitor. Hot surface ignitor ok, cleaned burners and flame sensor. Tested zoning system for proper operation. Working at this time, when you run downstairs only slight vibration on damper for imperators due to set up. Checked unit for proper drainage due to it being a high efficiency unit. Draining well at this time. Unit reached temp and turned it self off. Tested fan only as well. System looks good at this time.