NYCBOB
New member
maybe u should read the whole thread b4 posting that link, bc page 2 has a pictures of the problem.
Koralia Evolution running backwards?
- Thread starter therman
- Start date
maybe u should read the whole thread b4 posting that link, bc page 2 has a pictures of the problem.
reefrick.M
New member
Does your pic say anything about Hydor coming out with a modified bushing to fix the problem? I think not.
Thanks for the link frd72.
Russter
Northern Reefer
Sweet news on Hydor coming out with a modified bushing. Thanks for the update!:beer:
hounddog01
Active member
I would say it should. It usualy happens when you switch them on and off.
aquaph8
Love The Fish
Guy tries to help and you bite his freakin head off. Real nice!!!!
During setting up my tank, I just threw these on a regular outlet while I got my controller setup. After a bit, I noticed one was running backwards. So, like you said, its when you turn them on and off, or in my case, just on. haha
It sounds like some of the superglue got between the bushing and the magnet.
I figured it out, way different than those. I will take it back get a new one.
Did you contact custmoer service at Hydor. They can help troubleshoot the issue.
Typically when a Nano freezes its one of 3 things. The first 2 possibilities are that the impeller could be stuck to the shaft or the shaft may not be installed correctly into the front cover. You should take apart the Nano and remove the impeller and shaft. Makes sure both parts and clean and smooth. reassemble the unit without the front cover on. Next plug the unit in and see if the impeller spins. If it does not, then the issue is with the motor and warranty services shoud be able to help. If the impeller does spin, reinstall the cover. If installation of the cover stops the unit, you may need a new cover. Hydor has parts for the Koralias and they are typically free of charge.
You can only do so much testing in a Lab. New products occasionally have issues. This is why companies are constantly evaluating how a product is performing and if there are ways to improve the design.
The issue with the Evolution Koralias is not in every unit and it is mostly localized to the 750 and 1050 models. Reef tanks are a challenging environment for any piece of machinery. The lubricant was designed to protect the o-ring and it had an unexpected side affect.
I am the first to admit that this inconvienence really sucks, but a solution was devised within 24hrs of the first reports of the issue and is being implemented. Hydor designed a new bushing that snaps into place that will be available for all Evolution owners (details are available on the Hydor website). Also all the Evolutions made from now on will have the new bushing. You can also wash your o-ring in rubbing alcohol or a dish soap to remove the lubricant. If your bushing does slip, simply push it back into place.
No, you misunderstood. They froze up before I superglued them due to slipped bushings. After I superglued them they have not seized up or run backwards...knock on wood...
fishman_CT
Member
Thanks for the updates as I just purchased (4) 1400's and have been noticing some weird sounds coming from them occasionally and I bet ithey may be having similiar issues as some of you have experienced.
Even with this minor issue, for the price I cannot complain much. I too was looking at purchasing (2) Vortechs but for 1/5th the money, I was able to get these. Vortech users have also reported issues and just like any new product, glitches sometimes may be present. Hats off to Hydor for listening to us consumers quickly and for addressing the problem and providing an easy solution.
Even with this minor issue, for the price I cannot complain much. I too was looking at purchasing (2) Vortechs but for 1/5th the money, I was able to get these. Vortech users have also reported issues and just like any new product, glitches sometimes may be present. Hats off to Hydor for listening to us consumers quickly and for addressing the problem and providing an easy solution.
Contact Hydor's customer service. They can assist you.
The bushing slipping should not cause them to freeze up. I suspect that either some grit got between the bushing and magnet locking it up. Another possibility is that the impeller or the cover was not installed properly. When you disassembled the unit, you happened to correct the cause of the binding issue.
What did you do to mod them?
usefulidiot213
Bryan H.
He moded the propeller with the Maxi jet up grade propeller. For $11 you can turn your old K4s into monsters...
jdm18honda
Member
Any updates on the superglue fix
