Quote:
Originally Posted by Gapopper
Wow , sounds like to me you know your TM well. You made some great modifications. Was the lighted water heater switch hard to do. Have fun on your trip.
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It was easier to do than the magnetic switch that Bill recommended. The magnetic switch has the advantage of automatically turning off when shore power is disconnected.
The lighted switch that I used only needed the hot wire from the heater and the load wire to the heater and to be grounded. The hot and load wire can be picked up at the thermostat on the heater. Splice a wire to the hot thermostat supply and put a female spade connector on what will be your load wire. Run both wires through the rubber grommet next to the thermostat. You should use 12 gauge stranded wire and protect it with some heat shrink where it passes through.
Run those wires to an electrical box in the under sink location and wire up the switch as shown on the diagram that is in the switch box. You will need to run a wire to ground. The most convenient place to do that is to use a wire with a ring connector crimped on and secure it to the wire clamp where the AC Romex goes into the box attached to the water heater. You do not need to open the box just unscrew one side of the clamp. All of this is doable accessing thru the under sink door. The magnetic switch ( while superior ) would require accessing the AC supply box to the water heater. THAT would be a challenge to get to without removing the heater.
Paul