Water pump will not pressurize the system

[TOM MCB]

Last year I bought a 2005 Cherokee 29 foot travel trailer.  I winterized it myself.  We just got it out of storage and put water into it for the first time this year.  I turned on the water pump and it sill not shut down when the line is pressurized.  I have checked for leaks and have found none.  I do have water through all of the faucets and the antifreeze is now out of the lines.  Can anyone advise me what the problem may be.  I live 60 miles from the nearest RV center.  Thank you in advance

 

[ChasA]

Hi Tom MCB. Welcome to the forum.  Have you allowed enough time t Do you have the fill the water heater? Do you have the tank fill/city water valve in tank fill or city? If you have it in tank fill, the pump won't shut off.

 

[Gary RV_Wizard]

One possible cause of that is air in the line; it may take some time to work it out.

Does the pump run continuously or cycle Off/On?  If it cycles, it might be that the pumps internal check valve is allowing water to leak back to the tank.

Make sure the tank fill bypass valve is fully closed - that's a common leak that will be invisible because the water just flows back to the tank. It's also possible the valve is failing.

 

[Barnibus]

One possible cause of that is air in the line; it may take some time to work it out.

Does the pump run continuously or cycle Off/On?  If it cycles, it might be that the pumps internal check valve is allowing water to leak back to the tank.

Make sure the tank fill bypass valve is fully closed - that's a common leak that will be invisible because the water just flows back to the tank. It's also possible the valve is failing.

Ditto. I forgot about my by-pass line, and had the same problem.