Troubleshooting - Nilfisk cfm VHW320 Manuel D'instructions

VHW320 - VHW321 - VHW420 - VHW421 - VHW440
Problem
Reduced or insufficient vacuum power
The vacuum cleaner suddenly stops
Lack of vacuum
Dust leaks from the vacuum cleaner
Loss of dust from the vacuum hose
Electrostatic current on the vacuum
cleaner
US
C394

Troubleshooting

Cause
Clogged main filters
Clogged vacuum hose
The bag is full
Clogged filters.
One or more solenoid valves are stuck
in cleaning position (InfiniClean model)
Circuit breaker activation
The PullClean inlet is closed
The motor rotates in the wrong direction
The filters are torn
Clogged filters.
One or more solenoid valves are stuck
in cleaning position (InfiniClean Model)
Improper grounding
16
Remedy
Clean the filters.
If this is not sufficient, replace.
Check the vacuum hose and clean it.
Replace
Turn off the vacuum cleaner, wait for
at least 15 seconds so that the blower
turns off completely, then restart, and
vacuum clean air for at least 3 minutes.
Check the setting.
Check the motor electrical input.
Empty the container.
Contact an authorized after-sales
service center if necessary.
Check it and try to open it.
For 3-phase models, invert two of the
three phase wires inside the plug.
Replace them with others of identical
type.
Turn off the vacuum cleaner, wait for
at least 15 seconds so that the blower
turns off completely, then restart, and
vacuum clean air for at least 3 minutes.
If this is not sufficient, replace the
filters.
Check all ground connections.
Especially check the connection at the
inlet.
10/2013