I have noticed that the water pump sporadically turns on and off whenno one is even using the water, and hasn't used it in days. Is thisnormal? Or do I start looking for a leak under the rig?Thanks.

Normal! Yes, in most rigs this will happen. It could be a small leak. Most likely it could be leaking back through the pump.We normally turn the pump off when not in use.

The Pump will keep the pressure at a set point. I would only be concerned if it was cycling more than once a day. I know my will not cycle if no one uses water for a few days. If it cycles more than that I would start checking., it could even be leaking pass a check valve back to the tank. I am sure you will hear from others on where and what else to look for.

The pump runs because it is losing pressure somewhere inside your motorhome. You either have a leak in a waterline or maybe only a loose fitting.

The check valves in the pump itself can leak down. Ours cycles every once in a while without any water usage. It has done that for years without any sign of an external leak in or under the MH. If it is only cycling infrequently (once per hour), I wouldn't worry about it.

427435 wrote:The check valves in the pump itself can leak down. Ours cycles every once in a while without any water usage. It has done that for years without any sign of an external leak in or under the MH. If it is only cycling infrequently (once per hour), I wouldn't worry about it.X2

Water pump on and offf,,, | Good Sam Community

Old-Biscuit
Explorer III
Jul 05, 2013
Low battery voltage
OR
expired detector.......check backside for date. 'Self life' for detectors is typically 5-7 years
msmith1199
Explorer II
Jul 05, 2013
moon.lake wrote:
Thanks for all your replies! This seems to be about every 5 to 10 minutes and I find it annoying,,, so I guess it time to start checking the system.

Also had the rig unplugged for a couple days and heard an occasional beep,went out to check the rig and it was both the carbon monoxide detectors,, not a full blown beeping sound, but a short occasional beep,, its not done this before when unplugged. Anything to worry about?

If it's every five to ten minutes then yes, something is wrong. Could it be one of your valves in the wrong position? In my plumbing compartment if I leave the valve that controls water from either city water or internal water in the wrong position when not hooked to city water, then my pump cycles every few seconds too. Check those first. If not that and you can't find water leaking anyplace (should be a noticeable leak with an every 5 to 10 second cycle) then it's probably just the bad pump.

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