My double ovens do not work unless I keep the buttons pressed in the whole time I need for cooking, when I let go the ovens go out?

To Set a Cook T ime:
1. On double oven models only, press UPPER OVEN or LOWER
OVEN for the one you want to set.
2. Press BAKE or CONVECT UPPER (on some models).
Press the number pads to enter a temperature other than the
one displayed.
3. Press COOK TIME.
4. Press the HR and MIN "up" or "down" arrow pads to enter
the length of time to cook.
5. Press START/ENTER.
The start time and stop time countdown will appear on the
oven display.
On double oven models only, when both upper and lower
ovens are being used at the same time, touch UPPER OVEN
or LOWER OVEN to display the respective cook time.
When the stop time is reached, the oven will shut off
automatically and "End" will appear on the oven display.
If enabled, end-of-cycle tones will sound, then reminder
tones will sound every minute.
Repeat the process by choosing the other option of UPPER or LOWER OVEN

For the 720ef , this is what you need to do. Hopefully this will translate to your 900.
There are five buttons on the clock panel and from left to right they are:- Minute Minder, Cook time, Ready Time, Plus and Minus.
TO SET THE TIME OF DAY
Press the Cook Time button and the Ready Time button simultaneously. Use the Plus and Minus buttons to set the time.(24hr clock).
TO SELECT AN ALARM TONE.
Press the Minus button to listen to the first tone. Release it and press it again to listen to the second tone etc (3 tones)
Releasing the button after the tone has sounded will automatically set that tone.
SETTING THE MINUTE MINDER.
Press the Minuter Minder button and either the Plus or Minus buttons simultaneously to set the time.
You can cancel the timer at any time by setting it back to 00.00 by using the Minus button.
After setting, the display will revert to the time of day, but by pressing the Minute Minder button again, the display will show the remaining time.
To reset the cook time, use the plus and minus buttons to set it to zero.
To cancel the automatic setting and return the oven to manual operation, press the COOK TIME and READY TIME buttons simultaneously.
I hope this helps.

You may need to set the clock on the front first. Sounds silly but I had the same problem.

If the 'A' appears, it means that the automatic setting has been enabled. To stop this and return to manual setting, press the COOK TIME and READY TIME buttons simultaneously.
The COOK TIME button is the second from the left and the READY TIME is the third from the left.
If the 'A' keep s reappearing by itself, then it could mean that the timer is going faulty. ESPARES should be able to supply one.

It could be that the contacts need some cleaning. Turn the power off and then repeatidly press the buttons. This action may will clean the contacts. If this doesn't work then a new timer from espares is about £80.

Press the cook time & ready time buttons simultaneously and keep the buttons depressed. use the plus and minus buttons to set the time of day. A (Auto) symbol goes out, cookpot symbol comes on.

i had the same prob..... manual operation, to set the programmer to manual (cancelling any auto setting),press the cook time and ready time buttons simultaneously.


To set time of day, press the cook time and ready time buttons simultaneously and keep the buttons depressed. Use the plus and miuns buttons to the the time. A(auto symbol goes out cookpot symbol comes on.

1. Set the oven to the required
temperature.
2. Press the g button.
3. Set the total cooking time with the +
button (see the example in the
illustration right, showing 1 hour and
30 minutes).
4. Press the h button.
5. Set the cooking finish time with the +
button (the example in the illustration
shows 12.30 hrs.).
After setting the display shows the
time of day and indicates »AUTO«.
❑ The oven cooling fan will start
immediatley.
❑ At the pre-set time, the oven will be
automatically switched ON.
❑ The settings can be corrected at any
time.
❑ When the pre-set cooking finish time
is reached, a signal sounds and the
oven is automatically switched OFF.
To turn the signal off, briefly press the
h button.
6. Turn the oven selector switch to the
0 position.
7. The »AUTO« symbol blinks.
Important: It must be switched OFF
by pressing the E button.

Also here is the manual.

https://portal.bsh-partner.com/portal(bD1kZSZjPTAwOQ==)/PORTALFRAME.HTM

Good Luck

There are 5 buttons next to the clock. From left to right they are:-
Minute Minder, Cook Time, Ready Time, Plus and Minus.
It sounds like the timer needs setting back to manual, so to cancel the automatic setting and return to manual operation, press the Cook Time and Ready Time buttons simultaneously.

To cancel any remaining cooking time left on the clock before the alarm sounds, press the Cook Time and Ready Time buttons simultaneously.

If you are interested, to set the time of day, press the Cook Time button and the Ready Time button simultaneously. Then use the Plus and Minus buttons to set the required time.

To set the Minute Minder, press the Minute Minder button, then use the Plus button to set the required time. You can cancel the minute minder at any time by pressing the Minute Minder button and the Minus button until the display returns to 0.00.

To select an alarm tone, press the Minus button to listen to the first tone. Release the Minus button and press it again to listen to the second tone etc. Releasing the Minus button after the tone has sounded will automatically select that tone.

Hope this helps.

Hi, hold down the minute and cook button and at the same time hit either the plus or 1 button to set a time and then oven will work. each time the power is off this needs to be done. hope this helps