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Is my m355 pump broken?

post #1 of 7
Thread Starter 
I think my pump is broken. I'm trying to install a new res:
Koolance RP-402x2

I have everything installed, but I think i turned on the power to my pump too early, when there was no water going to it. It's so hard to tell with this res!!! Not to mention the fact that the res didn't even come with instructions. Pretty stupid for a 120$ res...

Anyways: tl;dr: Will a pump make any sound if it's broken? Also, when looking at the molex with the notches on the top, should the pins be Yellow Black Blank Blank?
post #2 of 7
If it die's then it just stops working. If it get's damaged somehow then it'll make noises.
post #3 of 7
Time to try the PCB repair mod?
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The Barnacle
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post #4 of 7
Thread Starter 
OK never mind...it's working. I had the wrong modular power connection hooked up LOL.

I don't think any water is flowing though...this is the most confusing res....
post #5 of 7
Quote:
Originally Posted by galaxyy View Post
Not to mention the fact that the res didn't even come with instructions. Pretty stupid for a 120$ res...
http://www.koolance.com/support/file...x2_d100eng.pdf
post #6 of 7
If the pump made some weird noises due to a short time running dry, take the pump apart, put some 3in1 oil on the white ceramic ball, put the impeller back on, twist the impeller back and forth a few times and reassemble the pump.

When the pump is run dry, the plastic fingers of the impeller become brittle (quickly). The 3in1 oil replenishes those plastic fingers to work again. It only takes two drops.

If anyone ever buys a DDC/D5/D6 pump with the plastic and stainless steel cup impeller, before ever running the pump, try the 3in1 oil first.
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post #7 of 7
The Koolance RP-402x2 (and the 452x2 for that matter) is a pain to bleed. You have to do quite a bit of tilting and shaking and make sure to keep filling the reservoir.

When I first installed it, I thought my pump was broken too; turns out it was air. It'll feel like the water is not flowing, just keep filling, shaking/tilting, run the pump for a few seconds, and repeat.
Edited by veblen - 5/6/11 at 11:26am
    
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