DTC of threephase nonsinusoidal backEMF permanent magnet brushless AC motor (PM BLAC) having one phase opencircuitfault is presented in this paper. The scheme employs an extra inverter leg in providing a current path for the two phase windings. Stator flux linkages and developed torque of the faulty motor are estimated using approximate model estimators. The models in αβ coordinates are obtained from the fundamental component of the rotor flux and measured stator currents. Voltagevectors and switching table of the DTC are described. Performances of the proposed strategy are evaluated by simulation and validated by comparing with the measured data.