A fault detection and isolation technique using nonlinear support vectors dichotomizing multi-class parity space residuals

•This work proposes a new combined method for fault detection and isolation.•A fault isolation solution is presented that does not rely on probability density functions.•Over-fitting issues in the non-linear fault classification are considered.•Parity equations and support vector machines are combined in the method.•A physical feed water heater control system is used in the demonstration.