National Flooring Equipment DL4000, Instruction Manual, Page: 28 / 32

Maintenance Section
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4.6 Troubleshooting
Fault found Possible fault
Recommended remedy
The dust collector fails to start
No power
Thermal magnetic switch
tripped
Check the power mains supply
Check the integrity of the plug
and power cable
Reset the thermal magnetic
switch
Dust is leaking out
Perforated vacuum pipe
Perforated filter
Filter unsuitable for type of job
Replace the pipe
Replace the filter
Fit a suitable filter for the type
of material to be vacuumed
The dust collector does not work as it should
Pipe perforated or blocked
Container full
Filter blocked
Seals worn
Air leak
Check the pipe and, if
necessary, replace it
Empty container
Clean the filter and if necessary
change it
Check the seals and, if
necessary, replace them
Check for any air leaks out of
closing fasteners, tightening
screws, container or filter
chamber
Motor is very noisy Contact NFE technical support
Warning!
For any other problems, contact the NFE technical support.