What do I do if my appliance is not heating?

What do I do if my appliance is not heating?

Check whether the electrical current is reaching the appliance (NB: this operation requires that all possible safety measures relating to the use of an electrical current are taken) and whether the (mechanical) on/off switch or the (electronic) cursor mode is not set to off.

Check that the room temperature is not too high for the appliance to work. Set the temperature to maximum to see whether the appliance starts heating after a few minutes; then return to the required setting. NB: for an electronic appliance, the appliance operates intermittently over a period of 40 seconds according to requirements.
Check the operating mode position on electronic appliances (Comfort/Economy, Frost-free, Stop, Program settings). Move the cursor to comfort mode to check whether the appliance heats up; the malfunction may come from the programming if you are in Program mode.
The sensor may be faulty on the electronic appliances: Switch the heating off then on again. If the heating LED flashes continuously, the sensor is damaged. Contact the after-sales service or your dealer to replace it if your appliance is under warranty.