Miele HR1421 Operating Instructions Manual page 80

Frequently asked questions
Problem
The heating for one of
the burners turns on
and off.
This display is dark.
The oven does not heat
up.
 flashes in the
display.
 appears
unexpectedly in this
display and the 
symbol flashes at the
same time. The signal
may also be sounding.
  appears in the
display.
80
Possible cause and solution
The "cycling" of the heating is normal. It is caused by
the electronic temperature control (see "How the
burners work").
If the heating cycles at the highest power level, the
overheat protection has been triggered (see
"Overheat protection").
There is no power to the appliance.
 Check if the circuit breaker has tripped.
Only an oven mode or a temperature has been
selected.
 Select a mode and a temperature.
The system lock  is On.
 Turn off the system lock (see "System lock ").
There is no power to the appliance.
 Check if the circuit breaker has tripped. If it has,
contact a qualified electrician or Miele.
Demo mode has been activated.  appears in the
display.
The oven can be operated but does not heat up.
 Deactivate Demo mode (see "Settings –  ").
There has been a power failure.
 Reset the time of day (see "Using for the first
time").
Cooking times will also need to be reset.
The oven has been operating for an unusually long
period of time, this has activated the "Safety switch-
off feature".
 Turn the mode selector to OFF. The oven is now
ready to use.
The Self Clean program door lock is not locking.
 Turn the mode selector to the Self Clean program
again.
If the problem persists, contact Miele Technical
Service.