Hi, i recently finish installing my hfs-5 and my dss3 V.10 won’t come up, I have only the water level come up but when I press the button won’t do nothing, any idea what could happened, looks like the dss3 is faulty.

 

the gauge won't start fully if your tripping the low fluid sensor, if you have not already, try putting fluid in and make sure the sensor is installed properly in your tank. the hinge should be on top so the arm can swing up. hope this helps. I'm not sure if it has to be plugged in or not but I would assume that unplugging the sensor would also work, but you don't want to run the pump dry.

 

Yes that's right, i have fill with 1 liter only, but as soon as filled out it come up, but the water level orange light never go off, also my flow red light never come up fully when i run high boost or when I step on the gas pedal.

 

When you say that the float comes up what do you mean? If it is pointing horizontally in a straight line the it is triggering fluid level low. If it is pointing up in the shape of an "L" then it should not be triggering a fluid level low. Can you post up a pic of your board wiring?

 

Did you install the float upside down? That's what I did when I first installed my HFS-1, the low-level light would never turn off!