Tunze 6125 problem.

powerkit

New member
I have a Tunze 6125 that the impeller spins backwards almost all the time. I have others that don't do this. What can I do?
 
Is it new and doing this or did it work in the past and just started acting up? The most common cause is a broken propeller, basically the end will be snapped off.
 
On a new pump the most likely culprits are the voltage is too low (below 102V) maybe due to a power module or wavemaker. Or, the prop and magnet is stiff on the shaft and cannot move forward to correct direction, this could be due t some debris or it may just need to wear in or it may have a defect. Did it work properly for a while? Is it being used on any sort of wavemaker?
 
worked great for the first while. No wavemaker just plugged into the wall. still works great when it's spinning in the right direction.
 
My guesses then would be sand or some debris is caught between the metal shaft and magnet, it could also be lime deposits if it has run for a few months or more.

It is also possibile the ends of the propeller are broken, check for jagged or apparently broken tips on the propeller.
 
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