Nilfisk Alto ATTIX 791-2M/B1 User Manual

11

ATTIX 791-2M/B1

‡ Motor does not start

> Fuse of the mains socket has 

blown.

•

Connect mains fuse.

> Overload protection switch 

has tripped.

•

Switch off the vacuum cleaner 
and allow it to cool for approx. 
5 minutes. If the cleaner can-
not be started again, contact 
the Nilfisk-Alto service depart-
ment.

‡ Motor does not run in auto-

matic mode

> Power tool is defective or not 

connected properly.

•

Check that the power tool 
works or that the plug is in-
serted correctly.

> The power rating of the elec-

trical tool is too low.

•

Note that minimum power rat-
ing is P>40W

‡ The acoustic warning 

sounds. (Reduced suction 
power)

> Suction power selected with 

suction power control is too 
low.

•

Set suction power in accord-
ance with section 4.2.3. „Set-
ting suction power“.

> Hose diameter and switch 

position do not correspond.

•

Set correct switch position for 
hose diameter.

> Clogged suction hose/nozzle.

•

Clean suction hose/nozzle

> Filter bag is full.

•

See section 7.2.2 „Replacing 
filter bag“.

> Filter element is clogged.

•

See section 4.5/4.6 „Cleaning 
filter element“ and 7.2.5/7.2.6 
„Replacing filter element“.

‡ No suction power during 

wet cleaning

> Tank is full. (Float does not 

close the suction opening).

•

Switch off the cleaner. Empty 
the tank.

‡ The vacuum cleaner 

switches off during wet 
cleaning

> Tank is full.

•

Switch off the cleaner. Empty 
the tank.

‡ Voltage fluctuations

> Impedance of power supply is 

too high.

•

Connect the cleaner to an-
other socket closer to the fuse 
box. Voltage fluctuations over 
7% should not occur if the im-
pedance at the transfer point 
is 

≤ 0.15 Ω .