Smeg BLC01 Instructions Importantes page 17

Problem
VACUUM PUMP
ACCESSORY*
The accessory button
LED flashes for 5 seconds
after suction.
Contact local technical support if the problem is not solved or in case of other types
of faults.
*Standard on certain models. Also available as optional accessory.
Possible causes
Battery dead.
The vacuum pump cannot
reach the vacuum pressure.
Solution
Replace the four batteries.
EN - 17