Which combination of measurements indicates an open heater element?

The combination of measurements that indicates an open heater element is when there is a voltage present to the heater but no current draw. In a functioning heating element, when voltage is supplied, it should result in a current flow through the heater. If there is voltage detected but no current, this typically signifies that the heater element is open or broken, preventing current from flowing and the heating element from functioning.

In a situation where there is no current draw observed despite the application of voltage, it can be concluded that the circuit is incomplete or the heating element itself has failed. This failure could be due to a break in the heating element's wire, thus leading to an open circuit, which is what this specific measurement would indicate. Therefore, the presence of voltage without current flow is a clear indication of an issue with the heater element, confirming an open condition.