Hi guys,

I recently purchase a Eheim 2215 (2nd hand). After running it, noticed that there is an humming sound coming from the motor itself. Its quite audible and i am affected by it. When i apply pressure on the canister from the top, the humming sound will go away. At first i though it was the propeller or shaft that was broken, i took the filter apart, gave it a through wash and place it back. The sound is still there but not as loud. Not sure if its me or there is actually people out there facing similar issue. I read on other sources that applying vaseline on the O ring or lubricating the propeller/shaft might help. Do i really have to change the propeller? Really need some advice and help here.

Cheers!