I had similar problems with jabsco and shurflo, after going with the Johnson, no problems. I wondered if it could be a check valve, leaking back to the tank. Another thing to look at is the orientation of the pump - make sure you follow directions, I think the exit should be on top. you want to make sure it doesn't trap air in the chamber, and running continuously could be just trying to pump air.
Bill Coleman Erie PA On Thu, Sep 1, 2022 at 10:40 AM David Knecht via CnC-List < cnc-list@cnc-list.com> wrote: > I am back to working on the freshwater pump problem. I replaced the old > pump (unknown age) with the same model Jabsco ParMax 1 that had failed and > now it is pressurizing the system, so the old pump was definitely the > problem. However, the new pump will not shut off, even if left for > extended time. I can find no water or air leaks and the system stays > pressurized enough to get water from the sink days after running the pump, > so it does not seem to have a leak on the outlet side. I am stumped as to > why it will not shut off. Suggestions? Dave > > S/V Aries > 1990 C&C 34+ > New London, CT > > > On Aug 9, 2022, at 3:17 PM, Chris Riedinger <chris.riedin...@gmail.com> > wrote: > > The new shurflo is 4138-111-E65 > > It's 12v, 6.5a max and 3gpm. It's got 55psi auto shutoff > > On Tue, Aug 9, 2022, 6:41 AM Chris Riedinger <chris.riedin...@gmail.com> > wrote: > >> Was a jabsco, I replaced with sureflo. >> >> I can't find the model# on my log- I'll take a peek down there this >> morning . >> >> On Tue, Aug 9, 2022, 6:17 AM David Knecht <davidakne...@gmail.com> wrote: >> >>> I can hear and feel the pump running fine, so I don’t think it is a >>> connection issue. What pump did you replace yours with? Dave >>> >>> S/V Aries >>> 1990 C&C 34+ >>> New London, CT >>> >>> >>> On Aug 8, 2022, at 10:35 PM, Chris Riedinger <chris.riedin...@gmail.com> >>> wrote: >>> >>> Checking breakers or fuses >>> >>> Any connections made - any corrosion in there? Are you getting >>> (batteryV+)12v or only 10.2 indicating a possible short >>> >>> Our water pump, which I believe was the original, just died last year >>> and I swapped it out. I wish I had done that sooner, the new pump is both >>> quieter and uses less aH >>> >>> >>> >>> Swaloon 37/40+ >>> >>> On Mon, Aug 8, 2022, 7:26 PM David Knecht via CnC-List < >>> cnc-list@cnc-list.com> wrote: >>> >>>> Hi Folks- I found that my fresh water pump was running continuously >>>> today and not pressurizing the system and not cutting out when >>>> pressurized. I confirmed there was water in the tanks and flow to the >>>> manifold that controls tank choice. But there was no water in the filter >>>> after the manifold and before the pump. I removed the hose connecting the >>>> manifold/filter to the pump and when I sucked on it, I got water, so >>>> nothing appears blocked. When I turned the pump on (Par-Max4), I could not >>>> feel any suction on the opening. I presume these are self-priming pumps, >>>> so I should have felt some pull. The pump is 30 years old, so I am >>>> presuming it is just dead, but wondering if there is any other scenario >>>> that might make it not work before I replace it. Thanks- Dave >>>> >>>> S/V Aries >>>> 1990 C&C 34+ >>>> New London, CT >>>> >>>> >>>> <pastedGraphic.tiff><pastedGraphic.tiff> >>> >>> >>> >
