Did a preventative maintenance on a LP furnace. During the maintenance I clean the flame sensor. Cleaned out the burner box and the blower motor housing. Did a amp check on the inducer motor and the blower motor which both meet the furnace specs. Changed out the 20 x 25 x 1 filter did a combustion test the ppm was 31. Also cleaned out the trap and made sure it was draining properly and service the humidifier changed out the number 35 panel wiped the entire thing down and made sure the drain was clear. System is operating properly at this point. M#EL296UH110XV60C-05 s#5915K06383