A trans-inductor voltage regulator with fault detection has a plurality of transformers. Each transformer of the plurality of the transformers has a primary winding coupled to a switching circuit, and a secondary winding. Each secondary winding of each transformer of the plurality of transformers are coupled in series with a compensation inductor. The trans-inductor further has a controller operable to detect a) a short condition in a secondary side of each transformer of the plurality of transformers, b) a short condition between a primary side and the secondary side of each transformer of the plurality of transformers; c) an open condition in the primary side of each transformer of the plurality of transformers; and d) an open condition in the secondary side of each transformer of the plurality of transformers.