Bosch HBL 73 Service Manual page 31

4. Meat probe. Plug the meat probe in its receptacle, on the left
side in the cavity. In a double oven only the upper cavity can
be used for probe cooking. The probe icon on the display
must be shown whenever the probe is inserted. If it blanks or
flashes a problem in the connection may exist. Only BAKE,
CONVECTION BAKE, CONVECTION ROAST, FAST
PREHEAT BAKE and FAST PREHEAT CONVECTION
BAKE must be available for cooking. When probe cooking is
running or before starting, press [Temperature] key:
a. Once, to edit the probe temperature edit state (probe
icon and temperature flash).
b. Twice, to edit the cavity temperature (temperature
flashes).
When probe cooking is running, the actual probe temperature
is displayed.
5. [Time] key + knob. Press [Time] key, TIMER is displayed.
Press it once again, in the time area 0:00 starts flashing. Turn
the knob 5 detents CW and check that time increments by
one each detent until 0:05 is displayed, then turn 5 detents
CCW and check that time decrements by 1 each detent until
the timer is back to 0:00. Press [Time] key again to display
the clock again.
NOTE: This last five actions allows to check all the devices
which haven't been tested yet during the Manual Test, including
the keyboard and the rotary switch.