Troubleshooting - Nederman Side channel fan Series Instruction Manual

EN S - Vacuum Cleaners
9

Troubleshooting

Problem
Fan will not start.
None or bad suction
capacity.
Dust in exhaust air.
Abnormal noise level.
Motor protection
activated.
Ball bearing temperature
sensor activated.
22
Fault
Electrical supply not
connected.
Switch supply or cable defect.
Radio interference
suppression defect.
Motor protection activated.
Switch not completely turned
on.
Clogged suction hose or inlet.
Clogged filter.
Leaking suction hose.
Leaking gaskets.
Discharge valve open.
Filter wrongly or not installed.
Filter defect.
Leaking gaskets.
Sound absorbing material
defect.
Power outage.
Restricted or no airflow.
Motors rotating in the wrong
direction.
Ball bearing temperature
sensor activated.
Ball bearing temperature too
high.
Solution
Connect the electrical supply.
Contact the distributor.
Contact the distributor.
See below, 'Motor protection activated.'
Turn switch on.
1. Disconnect suction hose.
2. Turn and suck in the opposite direction.
3. If still clogged, open suction hose with a rod.
For filter bag and cartridge filter cleaning, see Section 7 Maintenance.
Replace suction hose.
Remove and replace damaged neoprene gaskets. Use suitable two-component
glue.
Close valve.
Check the filter and change if necessary.
Change filter.
Remove and replace damaged neoprene gaskets. Use suitable two-component
glue.
•
Dismantle the silencer hood and remove dirt.
•
Replace damaged silencing material.
Safe to reset motor protection. See section 6.3 Reset motor protection.
•
Prevent overheating by ensuring that a flow of air passes the fan.
•
Make sure hoses, and the fan's inlet and outlet are not blocked.
Control that the motors are running clockwise as seen from above. Start the fan
briefly, check the direction of rotation. Impeller rotation must match the arrow
on the fan housing.
See below, 'Ball bearing temperature sensor activated.'
Listen for abnormal noise from the fan. If there is abnormal noise, contact the
nearest authorized distributor or Nederman service for technical advice.