Stream KIT with 6201 strang problem

[boris MAC]

Hi,

We have instaled Tunze Stream kit with multikontroler and 4x 6201, in 3.2 mx1mx75cm customer tank.
One of the pumps stop working, but that issue will be solved with an Tunze service in Europe.

Other issue is that all other pumps are working very weeak. Even we put Seio 6000 behind one 6201, and it looks like Seio double stronger than 6201.

Everything looks OK with the setup, so anyone could help and suggest what could be the matter?

Thanks

 

[benf]

what are the settings on the multicontroller?

 

[boris MAC]

The setings are:

Pulse
Interval half
teh chanel are from 40 - 100%.

One pump is dead defenitly.