I have a 2000 Discovery motorhome and my problem is that the water pump is always on. I shut off the water pump switch at the main control panel and I go turn on the water at the faucet and the pump runs. It doesn't matter which of my three water pump switches that I turn off, I can shut off all three and the pump will still run when I turn on the water. Any suggestions?
Sounds like a short that is keeping the line to the pump hot. You may have to test all the switchs to see if one is not switching off.
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Sounds like the pump 'controller' is shorted in the 'on' state.
Don't know what brand of controller is being used but here is a manual.
One style of controllers
2007 RAM 3500 QC LB SRW 5.9L CTD 48re 4:10 4K in bed 'quiet genny'
2007 HitchHiker II 32.5 UKTG 2000W Xantex Inverter
Hit the Road Free & Clear April '07
Are your switches of the "momentary" type, or conventional on/off? The momentary would be part of a system that uses a controller.
1997 38' HR Endeavor, 275 Cat, Freightliner
2003 CR-V Toad, Blue Ox, Ready Brake
Sioux Falls, South Dakota
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Many of the units with three pump switches use a relay to activate the pump.
The relay may be stuck closed or one of the switches may be stuck closed.
Clay (WA5NMR), Lee (Wife), Katie (cat).
Full Timing in a 2004 Winnebago Sightseer 35N, Workhorse chassis, Honda Accord toad