[kerry]

My RV has a switch inside to turn the hot water on electric (the switch outside has to be on). The switch is a single pole on the hot side of the circuit. I want to replace it with a pilot switch that lights up when I turn the electric on. Switch on inside, switch on outside, power to the heating element - works OK. Switch on inside, switch OFF outside, no power to the heating element - still OK but, the inside switch lights up indicating it is on - Still OK, but not what I want. What I want is a pilot light switch that indicates there is a working load, in other words, when both inside and outside switches are on, and for some reason the element goes open or the thermal switch opens, the switch won't light and I'll know I have a problem. Any ideas on how to wire this setup, or what kind of pilot switch to use. Also would like to wire this without adding any wires to the HW tank. Thanks , Kerry