What occurs if the short probes in a liquid level control short to ground?

When the short probes in a liquid level control short to ground, the correct outcome is that the unit will not fill. This occurs because the short circuit often creates a condition that prevents the control system from detecting the correct level of the liquid. When the short to ground happens, the sensor is unable to send the appropriate signal to indicate that filling is necessary, ultimately leading to a failure in the filling cycle.

In systems relying on liquid level controls, probes are designed to detect different levels of liquid and activate or deactivate the filling mechanism accordingly. A short circuit to ground disrupts the normal function of these probes, thus preventing them from signaling a fill condition.

The other outcomes listed do not align with what occurs due to a short to ground. Continuous filling would imply that the system is functioning normally, which it is not in this scenario. Overflow would suggest that the filling process is going unchecked, which cannot occur if the system is unable to fill at all because of the short. An automatic reset of the control could only happen if the system recognizes an error and has a built-in reset mechanism, which would not be the case with a persistent short to ground affecting the probe signals.