Sensor Failure: #A3-3310. Turn Off Then On. Call For Service If The Problem Persists; Sensor Failure: #A3-3311. Turn Off Then On. Call For Service If The Problem Persists; Sensor Failure: #A3-3312. Turn Off Then On. Call For Service If The Problem Persists; Sensor Failure: #A3-3410. Turn Off Then On. Call For Service If The Problem Persists - Samsung SL-X7600GX Service Manual