water pump switches

[denniswiebe]

96 bounder has 3 water pump switches . galley bathroom and outside shower. do they work independently? Just purchased unit. galley switch works great others don't respond. Also indicator lite don"t work. thx

[Ohsirr]

I have a 98 Winnebago Adventure and the switchs work together. That way you can activate the pump from any location. I would turn off the pump with the switch that works and use the other switchs and see if the pump works with them.

If they don't work you should be able to replace them as well as the indicator lite.

[Gary RVRoamer]

The switches trigger a relay, which then actually turns the pump on/off. If a switch doesn't work, it's either the switch or its connection to the relay. Or the relay itself has gone bad.

[paz]

Our motor home has 4 pump switches. They are all momentary contact switches, and as Gary says, the switches activate a latching relay. When you press any of the switches, an electrical impulse turns the relay on which activates the pump. Hit that or any other switch again, and the second electrical impulse turns the relay off.

If one switch works and the others don't, I suspect some of the switches or connections are bad, not the relay. It's possible the switches that don't work share a common connection to the relay (or to a 12V power source), and that connection is bad.