f the oven timer is broken, you can try the following methods to solve the problem:

Check the power supply: Ensure that the oven socket is working properly and the plug is firmly inserted.

Replace battery: If the oven timer is battery powered, try replacing the battery.

Restarting the oven: Some oven timers may malfunction, and restarting the oven may solve the problem. Disconnect the power of the oven and wait for a few minutes before reconnecting the power.

Manual control: If the oven timer cannot be repaired, you can try manually controlling the time and temperature of the oven. Use an independent timer or watch to time, and then adjust the oven temperature and time according to the recipe or required cooking time.

Repair or replacement: If the above methods are ineffective, it may be necessary to contact professional maintenance personnel for repair or replacement of the oven timer.