Miele DG 4164 EN - Manual (Page 38)

Normally, steam pressure and
temperature will be regulated
automatically by the appliance.
However, if a fault should occur, the
appliance is fitted with an overheating
protection device which protects
against the temperature rising too high.
The safety valve should be replaced
every 1-2 years, depending upon
frequency of use.
Safety devices must not be altered
or tampered with.
Pressure release / Safety valve
The safety valve and the pressure
release can operate individually,
simultaneously or one after the other.
If they are triggered, steam will be
released through the openings above
and below the door hinge.
^ Press the Start/Stop button.
^ Wait until the cooling down phase
has been completed (see
"Interrupting a programme").
^ Pull out the shelf.
^ Open the door.
Safety features
38