Try contacting 3IQ and see if they're able to replace it for free. I had a prob with mine gumming up and I contacted them about it. They told me to send it back and they replaced it right away. Nothing to lose. Worth a try.
Thanks for the suggestion but this is used. I think it's at least 6 months old. It's not under warranty any more. It's my bad luck. I'm looking for another wave maker device...