8 troubleshooting – Nilfisk-Advance America IVB 5-H User Manual
Page 16

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english
IVB 3-H
IVB 5-H
IVB 7-H
8 Troubleshooting
Fault
Cause
Remedy
‡ 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-Advance service
department.
> Self-acting carbon brush is
worn.
•
Have carbon brushes changed
by Nilfisk-Advance Service.
‡ 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 inser-
ted correctly.
> The power rating of the elec-
trical tool is too low.
•
Note that minimum power ra-
ting is P>40W
‡ The acoustic warning
sounds. (Reduced suction
power)
> Suction power selected with
suction power control is too
low.
•
Set suction power in accor-
dance with section 4.2.3. „Set-
ting suction power“.
> Hose diameter is not right for
switch position.
•
Set correct switch position for
hose diameter.
> Clogged suction hose/nozzle.
•
Clean suction hose/nozzle
> The safety filter bag is full.
•
See section 7.2.2 „Replacing
filter bag“.
> Filter element is clogged.
•
See section 4.5 „Cleaning filter
element“ and 7.2.3 „Replacing
filter element“.
> Defective cleaning mecha-
nism
•
Contact Nilfisk-Advance Serv-
ice
‡ No suction power during
wet cleaning
> Tank is full. (Float is blocking
the suction opening).
•
Switch off the cleaner. Empty
the tank.
‡ The vacuum cleaner swit-
ches off during wet clea-
ning
> Tank is full.
•
Switch off the cleaner. Empty
the tank.
‡ Voltage fluctuations
> Impedance of power supply is
too high.
•
Connect the cleaner to another
socket closer to the fuse box.
Voltage fluctuations over 7%
should not occur if the impe-
dance at the transfer point is
≤ 0.15 Ω .