Hi,

I have a D5 pump which does not spin at all.
I have the USB version, so I have used the molex and the USB connections.
When connected to the PSU, the pump does nothing. When plugging in the USB, the device had a "device information not retrieved" error.
If I unplug the molex, the USB device disappears, so it apparently gets power.

I opened the pump circuitry, and the flex cable connecting the two circuit boards had come loose on one of the solder points corresponding to USB ground (black cable on USB).
I then resoldered the connection and tried again. No luck, same problem.

Is the pump a goner? Or do I have any components missing?

I took some pictures of the circuitry, there appears to be a bare pad for a capacitor, but I have seen from other posts that this is common.

https://imgur.com/a/MoM1p

I rubbed it to check if it was dirt, it seems it is the plastic itself.

Here is a closeup picture

https://imgur.com/a/UyyfI


I guess it is beyond repair then, too bad :/

I suppose it might have been fried because the cable was loose and touched something else on the board.
Where can I buy the little controller board? It is worth a try to replace it.

Zitat von »Shoggy«

The controller board costs 14,90 Euro and can be shipped with a padded envelope for 5,00 Euro.

If you want to purchase one, please send an e-mail with your full name and address to info @ aqua-computer.de.

Thanks, I decided to purchase it. I have now soldered the new controller board to the pump and it seems like the new controller board works.
My computer now recognizes it as "MPS", and AquaSuite can communicate with it.

I am wondering if the pump has an inbuilt safety to prevent dry spinning?
I decided to wire it up and connect it to the computer to check if it worked before I mounted it with the reservoir.
But it does not spin, while AquaSuite says power is 100%.

This is how my overview page looks at the moment.

https://imgur.com/a/zGlKK


Do I have to mount it to a filled reservoir, or can I change some setting to check if I can get it to spin dry?
I know dry spinning is not good, but I just want to check if it works.

Thanks for your help so far!