Water Heater Switch

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Rene T

Site Team
Joined
May 20, 2011
Posts
22,415
Location
Farmington NH
I know some heaters have a switch on the outside in the lower left hand corner. I believe it's the Suburban's. What does that switch control? Is it 12 volt power to the circuit board or is it 110 volt AC for the heating element.
 
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