2nd Hydor Koralia 4 went dead in 2 weeks

[flameangel88]

I'd both about 2 years or so and all of a sudden both stopped working within two weeks. Anyone else having this problem? I can't find the receipts but remember it was about 6 months after they came out when I got them. At the time many online vendors were backordered. I bought a Magnum 8 last year at this rate I may have to replace it next year.

I just searched online and their guarantee is only 24 months. Any idea on the repair or should I just buy something else to replace them? TIA!

[kgross]

I would try cleaning them up well first. If that does not solve the problem I would replace them. I

Kim

[sam75]

"I would try cleaning them up well first" +1

[Garage1217]

Long soak in vinegar. Make sure the shaft does not have any coraline or anything on it causing the prop to stick.

[KyleO]

If the cleaning doesn't work...........just pack it up and ship it back to Hydor (directly). No questions asked, (as long as you did not damage the unit yourself) they send you a brand new one.

I run several Koralia's and Hydor has replaced 3 for me so far.

Great company!!!

[flameangel88]

Thank you so much for all the replies. I'll get them cleaned with vinegar this afternoon and see if I can revive them. Otherwise I'll ship them back and see if Hydor will either repair or replace them. If was odd that both dying within 2 weeks.

[DarG]

<a href=showthread.php?s=&postid=15269852#post15269852 target=_blank>Originally posted</a> by flameangel88
Thank you so much for all the replies. I'll get them cleaned with vinegar this afternoon and see if I can revive them. Otherwise I'll ship them back and see if Hydor will either repair or replace them. If was odd that both dying within 2 weeks.

Just out of curiosity, were you running them on any type of "wave maker" / flow controller?

[flameangel88]

<a href=showthread.php?s=&postid=15269881#post15269881 target=_blank>Originally posted</a> by DarG
Just out of curiosity, were you running them on any type of "wave maker" / flow controller?

No, they weren't on any wave maker and both pumps were in different tanks. I run Tunze on controller and Taam Polario 22L for wave.

[HighlandReef]

i had the same issues, 3 - 4's in less than 3 years are dead.
tried cleaning them and the whole shot.
i calle dthem and they are taking care of it but imo they should last longer than a couple years.
2 are dead and 1 is leaching current into the tank

[Garage1217]

What are the measurements of the leakage?

[flameangel88]

Had them soaked in diluted vinegar for couple of hours but still not working. No vibration whatsoever. I'll be sending them to Hydor and will report back here.

[HighlandReef]

<a href=showthread.php?s=&postid=15271229#post15271229 target=_blank>Originally posted</a> by Garage1217
What are the measurements of the leakage?


if your asking about the current leaching into the tank i never measured it, it shocking the sh!1 out of me was enuff.

[hamilton]

Vinegar is the cure all dontcha know!:D

[sld123]

yeah clean them first even if they don't look dirty . mine did the same thing just stopped one day for no reason i took it out and cleaned it and it came right back on and it wasn't even that dirty

[ForSaleByAndy]

I just got two 3's and one 1 for my 75 gallon.

Wonder if a bit of Might Mend-it on the prop on the one to make it a bigger prop will increase the output...hmmm....

[edenboy1]

I have had problems with the 4's. The local reef store has stopped selling the fours. Almost everyone has had this problem. I spoke with several reefers in other areas and they had the same problems. They work for about a month and stop working.

[Stanley-Reefer]

I'm glad I get the freaks then, my 3/4s are nonstop and my magnum 6s are on a wavemaker.

I love my hydors!

[DarG]

<a href=showthread.php?s=&postid=15276348#post15276348 target=_blank>Originally posted</a> by edenboy1
I have had problems with the 4's. The local reef store has stopped selling the fours. Almost everyone has had this problem. I spoke with several reefers in other areas and they had the same problems. They work for about a month and stop working.

I ran a 4 for about a year along with a couple of 3's. They were all running fine when I replaced them with Vortechs.

[lth03]

I had ran 2 K-4 in my 75 gallon for only 7 months and they always work really well for their purpose,later on I replaced them by Tunze 6045 because of the size,if I have bigger tank at that time,I would keep them but they really look big in 75 gallon tank with only 16" deep.