Don't know the model but with some the upper element is turned on first and when the thermostat temp is reached it switches off the upper element and turns on the lower element.
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When the temp is reached it switches off and then switches back to the upper element until heating is required again etc.
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Don't know the model but with most the thermostat operates to changeover heating of the water between the upper and lower element
Basically a changeover switch between the lower and upper elements
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Here's an image from a ***''different brand''*** dual element water heater that shows how most are wired. (Please ignore the red lines and red & green arrows on the diagram as it was taken from another answer that I submitted a few years back and I couldn't find a "clean" copy anymore).
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Here's an image from that shows typical thermostat wiring
Don't know the model but with some the lower element is turned on first and when the thermostat temp is reached it switches off the lower element and turns on the upper element.
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Don't know the model but with some the upper element is turned on first and when the thermostat temp is reached it switches off the upper element and turns on the lower element.
-
When the temp is reached it switches off and then switches back to the lower element until heating is required again etc.
+
When the temp is reached it switches off and then switches back to the upper element until heating is required again etc.
Basically a changeover switch between the lower and upper elements
Here's an image from a ***''different brand''*** dual element water heater that shows how most are wired. (Please ignore the red lines and red & green arrows on the diagram as it was taken from another answer that I submitted a few years back and I couldn't find a "clean" copy anymore).
Don't know the model but with some the lower element is turned on first and when the thermostat temp is reached it switches off the lower element and turns on the upper element.
When the temp is reached it switches off and then switches back to the lower element until heating is required again etc.
Basically a changeover switch between the lower and upper elements
-
Here's an image from a ***''different brand''*** dual element water heater that shows how most are wired. Please ignore the arrows/red/green on th diagram
+
Here's an image from a ***''different brand''*** dual element water heater that shows how most are wired. (Please ignore the red lines and red & green arrows on the diagram as it was taken from another answer that I submitted a few years back and I couldn't find a "clean" copy anymore).
Don't know the model but with some the lower element is turned on first and when the thermostat temp is reached it switches off the lower element and turns on the upper element.
When the temp is reached it switches off and then switches back to the lower element until heating is required again etc.
Basically a changeover switch between the lower and upper elements
-
Here's an image from a ***''different brand''*** dual element water heater that shows how most are wired.
+
Here's an image from a ***''different brand''*** dual element water heater that shows how most are wired. Please ignore the arrows/red/green on th diagram
Don't know the model but with some the lower element is turned on first and when the thermostat temp is reached it switches off the lower element and turns on the upper element.
When the temp is reached it switches off and then switches back to the lower element until heating is required again etc.
Basically a changeover switch between the lower and upper elements
+
+
Here's an image from a ***''different brand''*** dual element water heater that shows how most are wired.
Hi @davidnoon,
What is the model number of the water heater?
Have you checked that the thermostat is OK?
Don't know the model but with some the lower element is turned on first and when the thermostat temp is reached it switches off the lower element and turns on the upper element.
When the temp is reached it switches off and then switches back to the lower element until heating is required again etc.
Basically a changeover switch between the lower and upper elements