Need Help with Eheim Pro II 2028

**EddyTing** · 21st Apr 2011, 22:45

Hi all, as titled above, my external filter seems like loosing power. All pipes has been checked with no blockage. Is it because of the impeller core or the rod end rubber? Anyone can advice on this? Thanks in advance...

**haywas_35** · 22nd Apr 2011, 18:42

try running your cannister without any media, if it is still not so good change the impeller

**jonas83** · 22nd Apr 2011, 19:49

I think it is best you change both. Initially I change the impeller but it is not good, later then I changed both and the power comes back

**EddyTing** · 22nd Apr 2011, 21:27

You guys mean that the impeller & also the ceramic shaft together? The impeller's magnet may have problems over time too?

**haywas_35** · 22nd Apr 2011, 21:43

The impeller magnetism will loose it power over time. Inside the powerhead use the coil to drive the impeller

**alvinchan80** · 23rd Apr 2011, 00:01

Did you change the filter pad recently? Normally after 2-3 months, the white filter pad will be clogged and cut the flowrate a little.. You can change the top white filter pad to see if that is causing the drop in flow or maybe canister is just dirty... Normally Eheim canister won't just wear down so fast...

**EddyTing** · 24th Apr 2011, 00:23

Originally Posted by haywas_35

The impeller magnetism will loose it power over time. Inside the powerhead use the coil to drive the impeller

Thanks for the info bro...

Originally Posted by alvinchan80

Did you change the filter pad recently? Normally after 2-3 months, the white filter pad will be clogged and cut the flowrate a little.. You can change the top white filter pad to see if that is causing the drop in flow or maybe canister is just dirty... Normally Eheim canister won't just wear down so fast...

Well, yes, but now my case is not reduced by a little. In matter of fact, there's rattling sound as if the impeller is not spinning at the center point. I do see that the rubber is bit worn out though. By the way, the unit was bought second hand. Hehe...sorry, forgot to mention earlier.