Fresh water pump Flow Jet 4125 114 Not Working Questions

H

hull#1

New member
Good Morning

I have a 2006 cape cruiser 23 Venture and the fresh water electric pump is not working. I pulled voltage at the wires at the pump connection so I have voltage. So I removed the pump and jumped the pump off the battery to see if I could here any clicking noise or any noise in general and couldn’t hear anything. Is the pump shot at this point or is there any other troubleshooting methods? Thanks
 
maybe

Is check valve clear?

I dont have a pump drawing to check

I would further disassembly

maybe in pump
ruptured Switch Diaphragm
check valve

or
Bad Microswitch
Loose Wire at Switch

I would take apart until I can test the motor only with DVM and try to spin drive shaft
 
The pumps have a pressure switch--that could be bad--jump around that directly to the motor. What brand is the pump--many have rebuild kits. Usually it is valves which give out, or diaphragms that fail, rather than motor.

If it is the pressure switch, replace that.

How much voltage at the pump--just saying "voltage" does not help a lot--it should be the same as the battery--12.7 volts.
 
I've had some just trashed. Rusty with the motor fried. On our model it was mounted in the wet bilge. I've since raised it to get it up higher and they now last. Also freezing w/ water in the pump is the death blow. I've also rebuilt one w/ a new pressure switch, diaphragm etc. Take it apart and look. They are really simple. I now use Johnson ones, too. The Jabsco ones kept dying... Is it the brand or the getting it up, dry that made a difference? Who knows.
 
Sorry for the late night. Somehow I got locked out of my account and had it set up a new user ID. I disconnect the pump and have a voltage before the pump and jump the pump I don't hear anything. I thought I would hear a click or something maybe? I also see that troubleshooting PDF summary check that out right now as well.

It is the pump for the freshwater system, an adventure 23, and it is a flow jet model 4125-114 and they also notes similar to a Jabsco 31705-0092

It is unclear when you say jump at the motor you mean the wires coming out of the motor not taking it apart and jumping it internally?

Thanks much

Doug
 
Sorry for the late reply. Somehow I got locked out of my account and had it set up a new user ID. I disconnect the pump and have a voltage before the pump and jump the pump I don't hear anything. I thought I would hear a click or something maybe?

It is the pump for the freshwater system, an adventure 23, and it is a flow jet model 4125-114 and they also note similar to a Jabsco 31705-0092

It is unclear when you say jump at the motor you mean the wires coming out of the motor not taking it apart and jumping it internally? I just tried again and I cant hear a single noise. Found a couple of U tube videos but they were not very helpful. Could bad pressure switches put it into a nonactivatable state? I am not familiar with the internal workings of these pumps. thanks much Doug

Thanks much

Doug
 
Hull;


The pressure switch will not allow the motor to activate unless there is a pressure required to put water through the system. Otherwise the pump would have to be turned on each time you need water. There is a switch under the end cap where the wiring comes out of the assembly. Remove the end cap and you should see that there is a switch. Bypass the switch and try to jump directly from the wires leading from the motor. I have had to replace the pump a couple of times and it was the motor that was faulty.

Gene
 
Gene Morris":1fsmd58z said:
Hull;


The pressure switch will not allow the motor to activate unless there is a pressure required to put water through the system. Otherwise the pump would have to be turned on each time you need water. There is a switch under the end cap where the wiring comes out of the assembly. Remove the end cap and you should see that there is a switch. Bypass the switch and try to jump directly from the wires leading from the motor. I have had to replace the pump a couple of times and it was the motor that was faulty.

Gene
Click to expand...

Thanks I will give this a try when I get home. I wonder if I was having a presssure problem with the whole system in the first place or maybe I am misunderstanding how the pump works. Is there a pressure test process for press water system? Thanks much
 
There is a switch on the end of the pump. If there is no water pressure, the switch is closed, and current flows thru, causing the pump to operate. When the pressure gets to XX (usually 20 to 30 PSI) the switch opens, and the pump turns off. There is going to be a low point in pressure where the switch closes again--often 15 PSI--so it may cycle as the water is flowing.

It is being suggested that the switch be taken out of the loop. That is applying current to the motor--disconnected from the switch--the wire going out of the switch.
 
Any luck Hull?

Our pump seems to have given out or the fuse went this weekend. I couldn't find the 15amp fuse outline in the diagram for our 2007 25 Cruiser. Does anyone know where the fuse is for a similar year?

Planning to test the voltage and pull the pump tonight for more troubleshooting! Fun times.
 
My boat has been re-wired, with larger fuse panel. It does have a fuse in the box, follow the red wire from the switch to the fuse box behind the console. This was the same set up as on my earlier 25 and the 255.
 
Thanks! I stripped the wires just before the pump and there was 14V reading there so I pulled the pump, took it into my local marine shop where they removed the pressure switch and jumped started the pump on a battery. You can see the pressure switch on page three of the exploded view below.

Now I hope to put it all back together right tonight, just 5 more maintenance tasks left to do. Boat ownership!

https://www.pumpagents.com/pdf/JabscoPu ... 5-0092.pdf
 
I learned a long time ago that one of the critical items on a boat with a pressure water system, was a spare pump. Usually one of ours would go out in the middle a passage when Marie was in the shower. I used spade connectors on the electrical for quick change out, and quick disconnect (most pumps have these now). We keep an extra pump under the galley--all ready to go--on our 25.

We also carry a "Water puppy" vane pump mounted on a starboard mount, with about 3' of 1/2" hose on each end, with battery clips on the power cord. This can pump fresh water out of the tank if necessary, bail out the dinghy, use to wash down the cockpit or anchor etc.
 
thataway":1if0xzxz said:
"Water puppy"
Click to expand...

Thanks for reminder on the Water Puppy, I used to have kicking around. What model pressure pump are you keeping around as spare? My 07 label isn't readable.
 
kaelc":a01n3ii9 said:
thataway":a01n3ii9 said:
"Water puppy"
Click to expand...

Thanks for reminder on the Water Puppy, I used to have kicking around. What model pressure pump are you keeping around as spare? My 07 label isn't readable.
Click to expand...

Sorry, it is on the boat, and I am on the road, without boat....
 
Sorry for late reply life took me away from this project for awhile. Anyways I took it apart and it is seized up tighter then a drum. Any recommendations for a pump that won’t break the bank would be greatly appreciated. Halls so much Doug.

For reference the pump that I have is a flow jet 4125-124 which noted similar to jabsco 31705-0092.

Thanks again
 
A close match is the Flojet 1202.1050 04406-143A Quad II Water Pump. It should use the same hose fittings as your Flo Jet. The flow rate is enough, it is only 10 PSI--which is plenty for house use--but not for wash down. If you want wash down, there is a 50 PSI unit: Flojet 03526-144A Triplex Diaphragm .
 
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