"PaulB" wrote in message . com...
I have one of those and one for my skimmer. They work well enough, but my
Rio 2500s stopped restarting after three months like clockwork. This could
easily crash my tank if the power went off for a short time while I was at
work. I could have bought an Iwaki for the money I spent on replacement
pumps and impellers, and saved money.

Have you inspected the impeller when in non-starting mode?
Whas it still like the new one is: build from two, loose pieces
or these two pieces stuck together? This half-turn of the free
move the wheel has around the magnetic core is crucial to pump
reliable re-start. Dirty maxi-jet and mini-jet with impellers
stuck into one piece have trobles starting as well.