Hydrofoam pump not working

[nanojg]

My pump stopped working yesterday. I took it apart and soaked in vinegar water overnight. I started it once this morning and it worked fine, then I unplugged it and plugged it back in and the impeller doesnt turn. The vinegar took off all calcium deposits and it appears to be clean with no obstructions.

This happed a couple months ago, but it worked fine after i cleaned it.

 

[rvitko]

There are 6 models of hydrofoamer pump and 3 distinct styles that have different impellers and motors, can you tell me the model number?

 

[nanojg]

Tunze 9410.04 Hydrofoamer

 

[rvitko]

Please check that magnet of the needle wheel is not deformed or swollen and that the shaft is not cemented in the bearings by calcium build up.

 

[rvitko]

Note the shaft is part of the needle wheel it spins in two ceramic bearings with a silicon rubber sleeve, the bearings should come off the shaft and spin freely on the shaft.

 

[nanojg]

The bearing above the needle wheel comes off but the one below (inside the motor of the pump) is not loose from the shaft. I guess i should soak in vinegar for longer?

The magnet looks fine to me.

 

[rvitko]

Yes, that is probably the cause, you might try gently turning it and sliding it up and down to work it loose after a soak for some hours in vinegar.

 

[nanojg]

back in business, thanks for your help!