I got 99 problems, and this pump is one....

[Prozium]

I have a Koolance 450S with 24v controller I have been using for the last year and a half. Tonight I was installing my loop in my new build,I opened the pump to clean it and replaced the o-ring(with a bits power D5 o-ring replacement (http://www.performance-pcs.com/catalog/index.php?main_page=product_info&cPath=59_439_773&products_id=24147&zenid=845d9cc3b3e916ab08a858cfe8808894)), and everything was going good. I started to fill the res and turned the pump on. Water is moving and when the res got low I turned it off to fill it back up, but when I started it up again it started making noise. When I took it apart it looks like the impellers metal part is rubbing on the pumps metal drum.There's a grove I can see and feel a little on the pumps drum and there's a spot on the impellers metal part that looks "polished" that lines up with the grove.:down: What happened, and is there a way to fix it?

[Matlad]

I can't help with your problem but will give you a award for most creative thread title, made me chuckle!

[StAndrew]

Probably cant help but interested in some pics.

[Prozium]

http://www.fileden.com/files/2007/12/18/1652109/2013-02-15_15-57-04_367.jpg
http://www.fileden.com/files/2007/12/18/1652109/2013-02-15_15-58-23_577.jpg

Koolance got back to me, said it's most likely the plastic part on the impeller got broken or damaged and is causing it to spin off center. I looked and it does look like the part that sits on the ceramic barring is slightly thinner on one side. (couldn't get a good pic of it.) they said they could sell me a new impeller, which I will likely buy soon.

[Conumdrum]

The bearing, the small white bubble is probably mesed up too. New pump time.

Just get a regular D5 vario, the 24V one is a waste of Money. I wish I was the marketer writer for Koolance on that one and got a cut. I'd be rich off the folks who bought it.

[Sparky]

Nah, I'd inspect it but I suspect the impeller before that bearing. The impeller inside is the wear part as it is plastic. That bearing is hard ceramic and won't wear easily.

[Prozium]

The bearing, the small white bubble is probably mesed up too. New pump time.

Just get a regular D5 vario, the 24V one is a waste of Money. I wish I was the marketer writer for Koolance on that one and got a cut. I'd be rich off the folks who bought it.
The ceramic bearing looks OK to me. As far as a waste.... it's not, it is the same price. Here's a review from martinsliquidlab.org (http://martinsliquidlab.org/2011/03/05/koolance-pmp-450s-d5-strong-pump/) I have that same controller he uses as well.

[StAndrew]

Check to see if somthing is lodged in the impeller thats is throwing it off ballance. I once had a dead ear wig come out of my pump :confused:

[Prozium]

I'll take a look, but I don't remember seeing anything.

[Martinm210]

new impeller time..could have just been a slightly out of balance impeller and the strong speeds that caused a little vibration and early wear. I have seen quite a bit of variation in Laing impeller balance. Some run perfectly smooth and silent while others have harmonics or a little vibration more so than other samples. You just may have been a bit unlucky on the draw. Glad to see they are sending you are replacement. This is the first I have seen of what appears to be a worn out impeller.

[Jakusonfire]

Double post

[Jakusonfire]

Yeah that impeller is deadski ... here is a picture of another one that a moron on ebay tried to sell me as "In perfect condition"

I tried to get Koolance to sell me a replacement impeller and they told me they couldn't ... I even contacted Laing and each of the other D5 brand companys with no help.


http://i1296.photobucket.com/albums/ag17/Jakusonfire/Computer/IMAG0452_zps653a3814.jpg

[Prozium]

Update: Got the new impeller, works great!


Yeah that impeller is deadski ... here is a picture of another one that a moron on ebay tried to sell me as "In perfect condition"

I tried to get Koolance to sell me a replacement impeller and they told me they couldn't ... I even contacted Laing and each of the other D5 brand companys with no help. that sucks, how long ago did you ask to buy a new impeller? Maybe when you asked they didn't have any replacements they could sell you.

[Sadasius]

Check to see if somthing is lodged in the impeller thats is throwing it off ballance. I once had a dead ear wig come out of my pump :confused:

Seen one with a dead bee. Forget who it was. There is a picture of it too buried in these threads somewhere in the before time, in the long long ago.