Miele H 4540 Pyrolytic Operating Instructions Manual page 57

The oven door gets much hotter during pyrolytic operation
than during normal use.
Make sure children cannot touch the oven whilst a
pyrolytic programme is running. Danger of burning.
During the pyrolytic process the oven is heated to approx.
460 °C . Any residual soiling is burnt off by the high
temperatures.
For safety reasons the oven door is automatically locked at
the beginning of the pyrolytic programme.
At the end of the programme it will not be unlocked until the
temperature inside the oven has dropped to below 280 °C.
If the PYROLYTIC cleaning programme has been started by
mistake or if the process is interrupted, the door lock will be
released:
– immediately if the temperature is below 280 °C.
– not until the oven interior temperature is below 280 °C if the
temperature inside the oven is higher than 280 °C.
The pyrolytic programme duration will vary depending on the
level of soiling.
Cleaning and care
57