Defective Dosing Pumps

[george9]

Hello,
I just installed the 4 head dosing pump and half of the pumps do not pull any liquid. Pump 1 and 3 do not work, but pump 2 is working okay. When I try to prime them, I hear a mechanical noise but no liquid is pulled. I am not sure how to troubleshoot this as there are no tips in the manual. Can I remove the dosing heads? Is it possible to get replacement dosing heads?

 

[Administrator]

Hi, the motor got stuck according to your description.

You can pull the tubes of the unworked pump heads hard.

 

[george9]

Hi, the motor got stuck according to your description.

You can pull the tubes of the unworked pump heads hard.

This is exactly what I did and the pumps have been working great since! Thank you

 

[Administrator]

Welcome!

 

[dirk]

@Administrator, I've same problem with my new pump. One is only making light noise and not pumping. So I need to pull both tubes? Not the pump, right?

 

[george9]

@Administrator, I've same problem with my new pump. One is only making light noise and not pumping. So I need to pull both tubes? Not the pump, right?

Yup. What I did was hold the “prime” button so it’s pumping and then tug on both ends of the tube a little bit. Eventually it gets unstuck. It may take a couple tries. You shouldn’t have to remove any parts or take anything apart. Just run the pump and tug on the ends a few times

 

[dirk]

Yup. What I did was hold the “prime” button so it’s pumping and then tug on both ends of the tube a little bit. Eventually it gets unstuck. It may take a couple tries. You shouldn’t have to remove any parts or take anything apart. Just run the pump and tug on the ends a few times

Fixed! This trick did it. Was it bit hard, but finally worked. Had to pull more than expected.

 

[george9]

Fixed! This trick did it. Was it bit hard, but finally worked. Had to pull more than expected.

yeah it surprised me too how hard I had to pull but mine have been in operation ever since then and have had no issues pretty happy with it