Issue with Fluval 404

[Gordinho80]

i took apart my 404 yesterday to clean it out.. upon putting it back together like i've always done, and hooking it all up, i turn it on and the motor starts clicking... it didnt stop clicking... i've tried multiple things, nothing has helped...

if i hook the hoses back up, even though they are both filled 100%, it clicks and doesn't flow water properly. if i lower the output nozzle/hose to have it dump out to a bucket lower than the line of the tank, but still higher than filter, it flows well, but still clicks..

here is the super strange part... when i disconnect the hoses, if i plug in the filter with the hose opening just sitting there, it primes and pumps quietly...

 

[CaptainAhab]

check to make sure the impeller is a) seated properly b) no worn c) not broken

 

[Gordinho80]

impeller seated properly, not worn, not broken...

why would it work in the sink with no hoses connected to it, but not in the tank?

 

[CaptainAhab]

if the impeller was not fucntioning at 100% then that would lessen the ability to create the throughput. As would a leak in any of the hoses/seals, a blockage anywhere etc

 

[roka64]

It does sound like the impeller. Are you sure it is not bent? Can you see any wear on it?

 

[Gordinho80]

i will remove it and take pics later... it looks fine to me, but i may have no idea what to really be looking for..

 

[roka64]

When I have issues like that, I soak the impeller in white vinegar for about 1/2 hour and then use a new toothbrush to clean.