Hydor Koralia 1 Keeps Quitting

[fpg]

Hi All,
Awhile back I setup a 30G Salt Water Aquarium thanks to everyone's help here on the forums. Everything has been going great except for one little thing.
I keep having issues with my powerheads. I purchased a Hydor Koralia 1 to circulate the water in my tank. I noticed that it started randomly turning off. Eventually I couldn't get it to turn back on and sent it off to Hydor to get it fixed. I purchased another in the meantime to circulate the water and now it is on the fritz.
I am on my second unit and I don't think that they should be operating this way. They're usually regarded as a great powerhead so I'm not sure what the deal is. I'm beginning to wonder if it's something in my tank that's killing these. I do have a lot of algae around the tank.
Any thoughts? Why do I keep going through these things?

 

[hunt]

thats weird, ive had one 400gph for almost 2 years now and ive never had any problems with it, How far aprt did you buy them, and have you notice algea build up in it? Maybe you just got unlucky twice>

 

[fpg]

I think I'll send them another email. I read a message board somewhere where someone said there was an automatic turnoff if they overheated. But I wouldn't think they'd overheat from just leaving them on all the time.

 

[nycbob]

one bad thing with hydor is their customer service. they r very slow to respond. i remember waiting 6 weeks for a part to arrive 2 years ago.