19
19
Nilfisk
ALTO
E
Trouble shooting
Is LED no.1 (operating )illuminates
Magnetic valve.
Is LED no.2 (operating) illuminates
Servo.
Check plugs for Servo (3) and
Magnetic valve (4) on PC board
Are they OK !
Replace electronic PC board.
Replace Servo or Magnetic valve.
Replace Servo or Magnetic valve.
Machine does not clean the Filter.
Replace electronic PC board.
No.2
Green led
Servo.
No.1.
Yellow led
Magnetic valve.
No.3
Servo plug.
No.4
Magnetic
Valve plug.
No
No
No
Aut. Filter cleaning
Yes
Yes
Yes