Quote:
Originally Posted by Life on the fishing pier
Seems odd that switch would control the AC side of the water heater. It looks like a 12VDC switch. Do you have outside speakers? I have a switch like that and it's for the blue LED lights in the outside speakers.
|
Inside electric water heater switches are 12v DC. They operate a relay in the control panel of the water heater which energizes when turned on to then supply 120v AC through the outside water heater switch to the thermostat which controls the electric heating element. However, most inside water heater electric switches are lighted to indicate when turned on.