Greetings,
i have an Aqua Stream XT since 3 years now. Today i was unmountting my pc for a deep dust cleaning, as i do regularly; i didn't open my water loop at all; just disconnected, cleaned and reconnected all computer parts, including the pump. When i put it all back together (after making sure all air was out of the pump of course) and started the computer, the pump started emitting red light 4 times; then a brief pause, then another 4 times. During all that it wasn't pumping at all, which made my cpu overheat in literally 3-4 seconds and shut down the computer.
I then double checked the cables, and they were all correctly plugged in. Tried to restart, same results.
Then i tried any conbination of cables, with and without "usb", with and without "rpm". (of course with power supply cable in).
With these tests i had sometimes no light at all, sometimes a fixed red light. The pump started to do a very short vibration when i pressed the computer power button. It's a vibration like it vibrates when it normally runs, no unusual noise; but it lasts for very short, less then half a second, and then stops; until system shut down because of cpu overheating.


I then got liquid out of the pump moving it up high, removed it from the liquid cycle, and tried to open it, because i started suspecting there were some impurities left inside. But nope, it was perfectly clean as if it was new.


Put it back in, made sure all air got out of the pump again, tried starting the computer.


Right now, whatever i do it keeps doing that really really short vibration as soon as i run the computer, then it stops to never start again.


Is it an hardware issue? Is there any specific replacement part i should look for rather than buying a new pump?

what should i replace it with? I'm not used to touching circuits, I'm more the software kind of person

is there any way to bypass the controller and just plug the power to make the pump pump without fancy controls as a temporary solution?


______________________
Edit: how do i remove the Yellow frontal cover to access the board?

still not understanding how to remove that plate, i'm scared of damaging it pulling with too much strenght. It doesnt seem to move :\

AC is not the one you get from computer PSU right?

the Yellow cover is the piece i'm failing at removing, not the board

Ok i've succeeded. But there's no brownish part in the board

ok thanks for all the answers

Citation de "Shoggy"

When you remove the controller board you can run the pump with a 9-12 volt AC (not DC!) power supply.

Greetings,
can you tell more specifically how many volt and amphere should i look for?

Between the colors in the picture which ones should i use to power the pump, which is - and which is +?

I'm guessing Yellow/red is to power the pump and green/blue is to control it? Not sure though.
Which color is what?

P.s. i know i could just buy replacement parts, but right now i'm going to have to move soon, still i need my computer for work... until now i used some lent laptops, now i need mine specifically.

sorry i didnt realize my picture didnt upload, i added colors in paint to distinguish the various wires.
But from what you've said i guess you're referring to red and yellow

perfect, thanks again!