SUITABLE SOLUTION:
12 REPLACE THE SUCTIONING UNIT (ONLY FOR MODEL S-DD2 WITH MOTOR INSIDE)
PROCESS:
12.1 Disconnect power supply
12.2 Remove the 9-pole connector from the suctioning unit
12.3 Dismount the suctioning unit, by taking the no.8 screws (A) out, and replace it
with a new one.
A