Brand: SIEMENS
Category: Cooktop
Document Type: Manual
Language: EN
Manual for EX8..LX3.E
Uploaded: Nov. 21, 2025, 6:06 p.m.
Warranty Information
Refer to the appliance certificate or contact customer service for warranty information.
Your Siemens Flex induction cooktop with integrated ventilation system is designed for safe and efficient cooking. Key operations include:
- Intended Use: For private domestic use, preparing food and beverages.
- Safety: Always follow safety instructions regarding ventilation, hot surfaces, and electrical hazards.
- Operation: The hob is switched on/off using the main switch. Heat settings are adjusted via touch controls. Functions like PowerBoost, Flex Zone, and automatic modes are available.
- Ventilation System: Can operate in exhaust or circulating air mode. Filters require regular cleaning and replacement.
- Cooking Assistance: Features like frying sensor, keep-warm, and timer functions enhance cooking.
- Cleaning and Maintenance: Regular cleaning of the hob, filters, and components is essential.
Troubleshooting and error codes
| Fault/display | Possible cause | Solution |
|---|---|---|
| The appliance does not work | The plug is not plugged into the mains | Connect the appliance to the electricity supply |
| Power cut | Check whether other kitchen appliances are working | |
| The circuit breaker is faulty | Check in the fuse box to make sure that the fuse for the appliance is OK | |
| The symbol lighting is not working. | The control unit is faulty. | Call our after-sales service. |
| The ventilation system is not working. | The metal grease filter has not been inserted correctly. | Insert the metal grease filter correctly. → "Cleaning" on page 41 |
| The filter detection sensor is not working. | Call the after-sales service. | |
| The metal grease filter is saturated. | Clean the metal grease filter. → "Cleaning" on page 41 | |
| The activated charcoal filter is saturated. | Replace the activated charcoal filter. → "Cleaning" on page 41 | |
| F 10 F 11 | Nothing on the display | The power supply has been disconnected. |
| Use other electrical appliances to check whether a short circuit has occurred in the power supply. | The appliance has not been connected as shown in the circuit diagram. | |
| Check that the appliance has been connected as shown in the circuit diagram. | Electronics fault. | |
| If the fault cannot be rectified, inform the technical after-sales service. | ||
| The indicators/symbols are flashing | The control panel is wet or an object is covering it. | Dry the control panel or remove the object. |
| F2 | The electronics have overheated and switched off the affected hotplate. | Wait until the electronics have cooled down sufficiently. Then touch any symbol on the hob. |
| F4 | The electronics have overheated and all the hotplates have been switched off. | Wait until the electronics have cooled down sufficiently. Then touch any symbol on the hob. |
| FS + heat setting and signal tone | There is a hot pan near the control panel. There is a risk that the electronics will overheat. | Remove the pan. The fault code will go out shortly afterwards. You can resume cooking. |
| FS and signal tone | There is a hot pan near the control panel. To protect the electronics, the hotplate has been switched off. | Remove the pan. Wait a few seconds. Touch any touch control. When the fault code on the display goes out, you can resume cooking. |
| F1/F6 | The hotplate has overheated and has been switched off to protect the work surface. | Wait until the electronics have cooled down sufficiently before switching the hotplate on again. |
| F0 | The transfer settings function cannot be activated | Touch any touch control to check the fault code. You can cook as usual without using the transfer settings function. Contact the technical after-sales service. |
| F9 | The FlexPlus cooking zone cannot be activated | Touch any touch control to check the fault code. You can use the remaining hotplates to cook as usual. Contact the technical after-sales service. |
| F8 | The automatic safety switch-off function has been activated. See the section entitled | The automatic safety switch-off function has been activated. See the section entitled |
| 88202 | The temperature sensor has overheated and the hotplate has been switched off. | Wait until the temperature sensor has cooled down sufficiently before activating the function again. |
| 88203 | The temperature sensor has overheated and all the hotplates have been switched off. | If you are not using the temperature sensor, remove it from the cookware and keep it away from the other hotplates and sources of heat. Switch the hotplates back on. |
| 88204 | The battery in the temperature sensor is flat. | Replace the 3 V CR2032 battery. See the section entitled → "Changing the battery" |
| 88205 | The temperature sensor is disconnected. | Switch the function off and then on again. |