Koolance PMP 500 just stopped working

[paulstung]

I finally got my rig all ready for leak testing, and went about starting to fill her up. So I started to fill the res, and it was time to turn on the pump, it started, without a problem. I then turned it off to ad some more coolant, and resarted the psu to engage the pump and nothing, it wouldn't run. So I tried a different, psu and even connecting it through a 2 pin to molex and nothing.

I then opened the back of the pump where the cables go in, and 2 of the little black chips ? under the thermal pads look as though they have melted a little. Has any one got any thoughts on what has happened ?

The pump is only about 3 weeks old, and only used for about 5 mins the day it arrived, when I connected it up to a res just to test. Since then it was dried out and placed back, in it box, until needed. All that I noticed was that when it came to disconnect, the molex was tight to pull out, but when it did disconnect, the two male pins stuck out a lot more than they should, to the point of the coloured part of the cable was in the molex housing. So I just used a tool, to remove the pins and put them back making sure to put them in the right order. Thats the one good thing about ocd, it makes you get very precise with things, so that is one thing I'm sure of the cables were put in the right order, It's hardly hard to get two cables the wrong way round.

 

[alpenwasser]

Sorry to hear, mate

Don't know why this would be tbh. Maybe just bad luck :headscratch:

RMA?

 

[airdeano]

like this?

looks to be normal, as martin did not comment on the deformation.

verify the 12v power is going through the molex to the pump.

 

[paulstung]

That's exactly it mate. Looks almost identical actually. How would I verify that power is getting through ?

 

[Deejeta]

multimeter

 

[paulstung]

That's one thing I haven't even thought of buying.

 

[FTLN]

Use your tongue to test the 12v... Worked for me in the past

 

[paulstung]

Which bit should I lick, the solder where the wire meets the pcb ?

 

[alpenwasser]

Which bit should I lick, the solder where the wire meets the pcb ?

That is totally not a phrase I ever expected to read on a hardware forum. :rollinglaugh:

Not that I think your problem is funny of course, but you get my point.

 

[paulstung]

Real life nerd porn. I have just connected a molex extender with a 2 pin coming of it, and tried a fan the fan worked as it should. I'm in the middle of sorting out an RMA, so hopefully it will get sorted. The only problem is they're out of stock, of the PMP 500, so I will have to settle for a D5.