Sadly that pump has a flaw. It was designed by a Canadian company in Ontario and I talked to them directly. Part of the speed control is located in the pump body and is prone (very) to burn out. That's what happened to mine. They redesigned the pump with all of the controller in the remote part, which is bigger. The redesigned model has a 30 minute feed timer, the flawed one a 10 minute.
China, with their attention to detail, refused to stop production and sell them under a slew of other names.
Mine ran perfectly for about 6 months I think it was before it failed. But that was as an external pump in a warmer salt water tank. If yours is submerged in a fresh water tank you may have enough heat dissipation to avoid burning out the controller part.
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