6205 not working

[frank40]

i have a 6205 that is around 4 months old that has stopped working and the light on the power supply is not a solid red anymore and is blinking.

[rvitko]

That would typically indicate an overload, the drive unit is likely stuck to the metal shaft by calcium build up and this has caused the pump to seize and draw more power than the power supply can deliver, this has caused it to overheat and shut off. Make sure the prop and magnet spin easily on the metal shaft.

[frank40]

Thanks Roger. that looks like the problem, i cleaned the unit out and is working again. i guess i will doing the same to the other Tunzes this weekend.