Likely turns on the 120V AC heating element in the water heater. Hopefully there was water in the heater tank before the switch was turned on or the element may have burned out. It can happen very quickly when the tank is empty.
thank you, my water heater tank was full ....luckily.
I did not know if I was launching a scud, turning a light on in someone's dog house, hitting an emergency toilet seat ejector or just what the heck it was for.
thanks again!
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