DE DIETRICH DFF1310J - Manual (Page 9)

Instructions for Use 20
The door is hard to open
If you want to open the door that has just or
recently been closed, you may find it hard to open.
The reason why this happens is that when you
open the door, warm air gets into the appliance
and when it cools down, a slight vacuum is created
which seals the door. After a few minutes (5-10),
the door can easily be opened again.
Noise
Cooling in refrigerating-freezing appliances is
enabled by the cooling system with a compressor
which produces noise. How noisy the appliance is
depends on where it is placed, how it is used and
how old the appliance is.
x During the operation of the compressor the
noise of liquid is heard and when the compressor
is not operating, the refrigerant flow is heard.
This is a normal condition and it has no influence
whatsoever on the lifetime of the appliance.
x After starting the appliance, the operation of
the compressor and the refrigerant flow may be
louder, which does not mean that something is
wrong with the appliance and it has no influence
on the lifetime of the appliance. Gradually the
noise is reduced.
WE RESERVE THE RIGHT TO ALTER THE SPECIFICATIONS THAT DO NOT AFFECT
THE OPERATION OF THE APPLIANCE.