Whisper Filter 3 question

[LT1OwnzYou]

I have one of these Whisper Power filters with the dual outlets. It keeps stopping pumping water. I replaced the impeller and it started right up earlier. I left it and when i came back it wasnt workin. the impeller spins but it doesnt suck up any water. Its almost as if its not spinning fast enough.
Any idea?
if i need to replace the motor where can i get one?

 

[DEmigh]

I believe I have the same model that you do. It has served me well for many years, but it's about to be converted to a DIY sump overflow box. That's my problem though, not yours...

Some possible causes are suspended particles. I've found some of the Whisper models (notably the 1) to be sensitive to getting a little grit in between the magnet on the impeller shaft and the housing in the induction drive. If you have a small round brush, you can sometimes clean the impeller cavity without taking the thing apart.

If you need to test the function on the motor, take the filter apart, put the impeller in the cavity of the inductor and hold the top of the shaft centered with you finger, plug it in briefly. It should spin like mad.

I had a weird impeller break one time that resulted in the vanes being disengaged from the magnet, but only intermittently. That takes a close inspection of the impeller assembly to diagnose.

Another potential source of problems is the fitting on the end of the siphon tube. Check the little socket that's supposed to hold the top of the impeller shaft centered in the inductor (the job your finger did in the test above). If that's damaged, the impeller can slip off center and bind against the side.

I've never had this problem, but if the O-ring that seals the flow adjuster (on the top of the siphon tube) were to become damaged or badly worn, you could lose the siphon.

If worse comes to worst, I've seen the inductor for sale at PetSmart and at two different LFS, ask around.

Good luck.

 

[LT1OwnzYou]

Thanks for the reply. I got to messin with some old filters i had laying around, One being one of the smallest filters whisper made. Come to find, they use the EXACT same motor. So i kno its not the motor that was the problem, I thoroughly cleaned the shaft, still a no go, so then i just started swapping impellers. I got a smaller impeller to spin like crazy and power up my whisper 3. Then i got an impeller from a non whisper filter to power up the smaller one... kinda funny really, since i just bought a brand new impeller for the **** thing.