Water Pump Running Intermittently

It could be a couple of things, it could be a leaking valve that is letting a slight amount of water pass.  Check to see if your toilet is not quite shut off, or the bathroom tap is leaking slightly.

It could also be that your system is just pressurizing again, but then it would only run for a few seconds, not minutes.  You might want to see if your black or grey tanks are filling up, the water pump may be filling those up.

I installed a small pressure vessel and it took care of that plus it allows me to run the tap for a short period of time before the pump kicks on.

Let us know what you find.

The pressure switch is on the front of the pump, built in. If your pump is coming on and running for minutes.. that could be the issue. The front housing can be swapped out, 6 screws on most pumps, parts about $20 on Amazon.

If it comes on and runs for only a couple seconds, that almost always means a leak in the system somewhere.To check for a leak, let the system come up to pressure, turn the pump off, wait 24 hours, open a tap. You should have full pressure when you open, if you don't.. then it leaked out somewhere. I have opened systems that sat for a month or more, and were still under full pressure.