Abstract: Systems and methods of detecting current leakage in a heating element are provided. An alternating current signal can be applied to the heating element. The heating element can have an associated line relay and an associated neutral relay coupled to a line terminal of the heating element and a neutral terminal of the heating element, respectively. A control system can be configured to control a sequence of operations of the line and neutral relays such that the magnitude of a leakage current flowing through the heating element to ground is increased. Such increased magnitude can facilitate detection of the leakage current. The detected leakage current can be compared with a leakage threshold. The control system can cease the operation of the heating element if the leakage current is greater than the leakage threshold.

Abstract: Appliances that include a ground fault door latch trip circuit that leverages a door latch circuit of the appliance to open one or more component relays upon detection of a current leakage event are provided. In particular, the ground fault door latch trip circuit can provide one or more shunt paths when a ground fault event is detected. The shunt paths can shunt current from a door latch to ground, such that the door latch circuit operates as if the door of the appliance has been opened.

Abstract: Systems and methods for controlling one or more operations of a dishwashing appliance are provided. In particular, a supply voltage applied to a heating element of the dishwashing appliance can be determined. The supply voltage can be compared with an acceptable operating range of supply voltages to determine whether the supply voltage is within the acceptable operating range and, if the supply voltage is not within the acceptable operating range, one or more operations of the dishwashing appliance can be controlled based at least in part on the determined supply voltage. For instance, an amount of time during which the heating element is active during one or more operational cycles can be adjusted to compensate for the determined supply voltage.

Abstract: Systems and methods of detecting current leakage in a heating element are provided. An alternating current signal can be applied to the heating element. The heating element can have an associated line relay and an associated neutral relay coupled to a line terminal of the heating element and a neutral terminal of the heating element, respectively. A control system can be configured to control a sequence of operations of the line and neutral relays such that the magnitude of a leakage current flowing through the heating element to ground is increased. Such increased magnitude can facilitate detection of the leakage current. The detected leakage current can be compared with a leakage threshold. The control system can cease the operation of the heating element if the leakage current is greater than the leakage threshold.

Abstract: Appliances that include a ground fault door latch trip circuit that leverages a door latch circuit of the appliance to open one or more component relays upon detection of a current leakage event are provided. In particular, the ground fault door latch trip circuit can provide one or more shunt paths when a ground fault event is detected. The shunt paths can shunt current from a door latch to ground, such that the door latch circuit operates as if the door of the appliance has been opened.