Quote:
Originally Posted by rohrmann
Don't trust the fact that the indicator light glows on a switch that there is power to something. Even when you are not plugged in to 120 volts, your water heater switch for electric still glows. This is a 12 volt circuit to the relay that turns the 120 volts on the the water heater. This could also be the same for the tank heaters.
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Could very well be! I’d call Keystone but I doubt anyone there would know either.😎
Mark