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-   -   Water pump wonít shut off (https://www.irv2.com/forums/f54/water-pump-won-t-shut-off-552558.html)

bevo7 09-04-2021 10:30 AM

Water pump wonít shut off
 
I have checked all faucets in bath, kitchen and lower bay for possible leaks and saw nothing. When off of city water pump works fine but continues to slowly prime at a slower rate than when water is on. Any suggestions, air in line somewhere and where would I bleed that? Thanks

Kuzzy 09-04-2021 10:40 AM

The first thing I would check would be the valve that switches from city water to tank fill. I just had to replace the internals of mine due to the rubber washer getting hard.

Old-Biscuit 09-04-2021 11:01 AM

When connected to city water the pump should not run unless city water is lower then pump start set point

Pump pressure switch controls pump start/stop

W/O city water connected pump running and no demand means 'leak' or pump pressure switch is not opening

Does pump run & run or does it cycle on/off?
Run & run.....that means pump is not fully pressurizing the system
*Fill valve if you have one ---leaking thru
*Bad Pressure switch

Cycles on/off
*city water check valve leaking 00water dripping from connection
*pump check valve leaking...backflow thru pump
*water heater T&P Relief Valve weeping
*Any connection/fitting leaking...place some TP on/around/nar fittings/tees/toilet water inlet etc and check later for dampness

Tireman1 09-10-2021 06:45 PM

Be sure your fresh water tank isnít low. That will cause the pump to run continuously.

crawford111 09-10-2021 06:54 PM

My problem was the pump when I never found a leak I changed it and fixed problem.

southernlady 09-11-2021 08:43 AM

When that happened to us, it was the O rings that had died.

Persistent 09-11-2021 10:13 AM

Lots of good advice above!

There may be an anti-freeze siphon tube and valve. If set to suck anti-freeze it will only get air and not pressurize.


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