What is Code 142? What am I seeing “Code 142” on my screen? Code 142 refers to a connection error and is usually resolved by powering the screen off and back on. Please contact our support team with any questions. Updated on March 1, 2022 Tagged: 142codecode 142 Was this article helpful? Yes No EngagePHD Learning LibraryExplore the Learning Library of Video GuidesLearn More