How to take apart motor assembly of eheim 2215?
 

My eheim 2215 has something loose in the top part, where the motor and impeller is. The impeller works fine, everything working fine accept when doing cleaning I heard dangling noise from the top part (where the pump is)u can tell there is something loose by listening to the sound. When I shake it sounds like a coin is stuck in there or something.

Does anyone know how to take apart that top section of the filter so I can see what it is and make necessary repairs?

I have no answer but would suggest bringing to Qianhu for them to repair or search youtube?

Best of luck