Tunze 6065 reversing?

[alex93se]

I have 2 6065s that turn in the reverse, every no and then, when I restart. Both of these have this problem. They are not on a wavemaker and are only turned off during feeding. My old 6060s never did this. IS this a know problem? Thanks.

 

[rvitko]

This would happen because either the stops on the inside of the propeller housing are broken off or the propeller is damaged. If you send me one pump I can probably figure out the cause. The pump will normally start backwards and the prop will hit a fin that protrudes from the front cross hatch on the propeller cover side wall. It will then fall back and spin the right way. If the blades are broken or the cover is broken this mechanism will not work.

 

[alex93se]

I'll check to see if these are broken. Will let you know. Thanks.