Pump not restarting?

[Reef Pilot]

Next time I shut it down, will plan to do a full cleaning. I think I will do it when I combine my tanks into one sump. Then I will have a spare pump, in case something goes wrong with it. Hope it just needs a cleaning. 1.5 years old doesn't seem all that long though, considering I have some others that have been running much longer with no maintenance.

It sure is a great pump though, with its head capability, pumping volume, and quiet.