Troubleshooting - Nederman FlexFilter EX Manual De Instrucciones

18 Troubleshooting

If the trouble shooting guide do not solve the problem, contact your nearest authorised dealer or AB Ph. Neder-
man & Co.. for technical advice.
Error
Control filter pressure switch
triggered.
No dust collected in Bulk-Bags /
container.
Low vacuum or airflow
Filter cleaning not working.
FlexFilter EX
Possible cause
Control filter blocked
6 mm hoses to pressure switch are
blocked or damaged.
The filter in the air hose full.
Pressure switch/filter not connec-
ted properly.
Pressure switch set too low
Pressure switch broken
Control system setting incorrect.
TVFD feed-out not working
Filter cleaning not working.
Insignificant vacuum/flow en
route to FlexFilter EX.
Suction source to small
Suction source malfunction.
Deposits / Blockage in pipes en
route to FlexFilter EX.
The duct system not properly di-
mensioned.
Malfunctioning valves in the duct
system.
Filter cleaning malfunctioning or
insufficient
Air pressure or airflow too low
Solenoid Cleaning Valve not con-
nected properly.
Air lines, valve or cylinder blocked.
Solution
Change control filter. Check the
main filter for damage.
Clean / replace hose.
Replace the filter in the air hose.
Check connections.
Increase setting (Pre-set: 4kPa)
Replace
See the instructions for the con-
trol system you use.
See Chapter 17 Maintenance
See Chapter 17 Maintenance
See Insignificant vacuum/flow
Check capacity of the suction
source.
Check the suction source.
Clean pipes. Check transport velo-
city.
Re-dimension the duct system or
add an extra suction source.
Check duct system valves.
Check function of Solenoid Clean-
ing Valve (SCV)
Adjust pressure. Check feed hose
dimension
Check valve and air pressure.
Clean / replace air lines, valve or
cylinder. Filter incoming com-
pressed air.
EN
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