Performed Fau maintenance on 1 year old carrier unit. Cycled system for heat. Verified proper heating sequence of operations. Temperature rise across heat exchanger is within range. Amp draws on indoor and inducer motor are in range. Blower wheel is clean and motor looks healthy. Ductwork is all properly strapped and sealed. Cleaned burner assembly and blower assembly. Cleaned flame sensor. Tested all zoning and heating components, all are working accordingly. Cycled system, system operational upon departure.