I took delivery of a 130 watt laser just days before falling to Covid, but the last two days I have been able to get in and start initialization.
Today was water cooling from a 5002 chiller unit, so I went around all the joints between the piping and tube, fittings etc and supported each joint with a nyloc pull clamp.
Great, time to turn on the water, and Pop!!! Water everywhere in the main bed space and wall, floor. Imagine my joy
I turned off the chiller, cleaned up and then went looking for the failure and in the images you will see the reason.
The really simple unit had a body, the big white piece, a screw insert, smaller white piece and then a diaphragm and 'O` ring. The diaphragm and ‘O’ ring are squeezed to a seal in the two body parts.
When water pressure is applied, the rubber diaphragm stretches and presses on the black looking metal contacts,
Circuit complete, the controller knows there’s water pressure. Or just wait for the pop!!! YOU CAN SEE THE HOLE!!
So please check your sensor.
I simply wired in the alarm contacts from the chiller and removed this unit. Works great. Hope this helps someone.
By the way there are many different sensors, almost all of better, safer more reliable design.
Carry on with the rest of the setup tomorrow, wish me luck