If you have a snap disc(switch) and it is located near where the one in my 2005 Monaco Knight is it will be hard to see and even harder to reach. Mine is mounted high on the roadside frame rail near the tanks behind the big plastic panel in the water bay
It is silver, about the size of a quarter with red and black wires going in and coming out of the switch.
https://shop.findmyrvparts.com/monac...1-p/190308.htm
12Vdc comes from the fuse panel to the switch labelled POWER. When the switch is pressed it closes illuminating the light in the switch and sending power to the snap disc. When the temperature of the snap switch reaches the design preset temp setting the bimetallic components deform closing the circuit sending power to the 300 watt water bay heater and to the light on the panel labelled ACTIVE. The switch supposedly makes a snapping sound when it closes hence the name.
My heater is a CARGO HEAT 3000RV and is mounted next to the fresh water drain pipe right to the tank on a steel swivel bracket.
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2005 Monaco Knight 40PLQ; Cummins 8.3L ISC330, Pacbrake, Allison 3000, Roadmaster RR8R, ScanGauge D, 2004 Kawasaki Vulcan VN750(Geezer Glide) on a Versahaul carrier pulling a 2013 Kia Soul+; 2.0L, 6 speed Sport shifter(great car) on an American Car Dolly(great dolly.)
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