What is a reset button switch?

The reset switch of water heater generally refers to the reset button of overheating protection thermostat.

? Overheating thermostat is a bimetallic thermostat, which is mainly used for the primary protection of various electrothermal products with overheating protection. As a secondary protection, it can effectively prevent the electric heating element from burning out and the fire accident caused by it when the sudden jump thermostat fails to function or fails to cause the electric heating element to overheat. The overheat thermostat needs to be reset manually,

Reset button after overheating action in the middle of overheating protection thermostat

Temperature controller for overheating protection of rapid heating water heater.

Temperature controller for overheating protection of storage water heater.