Abstract: Disclosed are systems and methods for detecting a malfunction in an automated analyzer. The systems and methods may include receiving a signal from a sensor (116), such as a Hall effect sensor located proximate a coil (104) of a solenoid valve (100). The signal from the sensor may be correlated to a magnetic flux or change in the magnetic flux generated as a plunger (102) of the solenoid valve is drawn into the coil when the coil is energized. Deviations in the signal from a reference may indicated a malfunction of the solenoid valve. Upon detecting a malfunction, a pre-failure status may be determined.