Bosch Cooktop Error Code F5

F5 is a User Interface overheating warning. It means the electronics that control your cooktop have detected temperatures above a safe threshold but have not yet forced a shutdown. The cooktop may still be functioning, but the thermal condition needs to be diagnosed and corrected to prevent a more serious fault.

F5 is a warning rather than a full shutdown, so the cooktop may continue to operate, but continued use without addressing the cause carries risk. Persistent overheating can damage the UI electronics and lead to a harder fault that disables the appliance. It is advisable to reduce usage and investigate the cause promptly.

If the issue is simply a ventilation or clearance problem, there may be no parts cost at all, only labor for diagnosis. A cooling fan replacement typically ranges from around 80 to 200 dollars including parts and labor depending on the model and service provider. A User Interface board replacement is generally more expensive, often falling in the range of 150 to 400 dollars or more for parts and labor combined.

Start by checking that the cooktop has adequate ventilation clearances and that airflow beneath the unit is not blocked by debris or stored items. Access service programme P7 and press the ninth sensor to read the F5 error counter, which tells you how frequently the warning has occurred. If ventilation is not the issue, inspect the cooling fan if your model has one, and consider having a technician evaluate the User Interface board.

A power reset may clear the active F5 warning display, but the error counter stored in service programme P7 will retain a record of how many times the condition has occurred. More importantly, if the underlying cause of the overheating is not resolved, the warning will return. Clearing the display without fixing the root cause is not a lasting solution.