Defro Komfort Eko Pz 25kw Boiler: Experiencing Excessive Noise from Eko Energi Feeder

Hello

Does any of you have the above-mentioned model of the boiler and can comment on the noise of its operation? Or do you have any boiler with an Eko Energi feeder.

Less than 2 months ago I bought and installed Defro Komfort Eko Pz 25kw year of manufacture. 2016 with the Eko Energi feeder, the boiler does not let you sleep. Humming of the feeder is heard two floors above. Besel 63-4b2 / 8893mx engine, Ewmar Ness geared motor. Without fuel, the feeder is just as loud, there are no traces of rubbing the auger against the hopper. these patents seem to be.
It is normal for the snail to crush the fuel, while the sound of the engine / gear motor?
Defro advertises quiet operation of the feeder or is it really supposed to be quiet?

I enclose 2 recordings of the feeder operation.

It's supposed to be pretty quiet that way. Such vibrations indicate damage to the elements of the feeder system.

Hello. The problem with the noisy feeder operation was solved ???

How did you do it, because it's the same for me. Thank you in advance