S - Vacuum Cleaners
7Troubleshooting
Problem Fault Solution
The motor will not
start
Electrical supply not connec-
ted.
Connect the electrical supply.
Power switch or cable defect. Contact the distributor.
Radio noise suppression card
defect.
Contact the distributor.
Motor protection activated. See "Motor protection activated".
The switch is not completely
turned on.
Turn the switch on.
Clogged suction hose or inlet. Disconnect the suction hose. Turn and suck in the op-
posite direction. If still clogged, unclog it with a rod.
Clogged filter. See Chapter6Maintenance.
Leaking suction hose. Replace the suction hose.
Leaking gaskets. Remove and replace damaged neoprene gaskets.
Use suitable two-component glue.
None or bad suc-
tion capacity.
Discharge valve open. Close valve.
Filter missing, defect or
wrongly installed.
Check the filter and replace it if necessary.Dust in the exhaust
air.
Filter defect Change filter.
Leaking gaskets. Remove and replace damaged neoprene gaskets.
Use suitable two-component glue.
Abnormal noise
level.
Sound absorbing material de-
fect.
Dismantle the silencer hood and remove dirt. Replace
damaged silencing material, if necessary.
Power outage. Reset the motor protection. See Section5.2Reset
motor protection.
Restricted or no airflow. 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.
Motors rotating in the wrong
direction.
Start the fan briefly, check the direction of rotation.
Impeller rotation must match the arrow on the fan
housing. If it does not, switch the phases L1 and L3
for three-phase operation.
Motor protection
activated
Ball bearing temperature
sensor activated.
See "Ball bearing temperature sensor activated".
Ball bearing tem-
perature sensor ac-
tivated.
Ball bearing temperature too
high.
Listen for abnormal noise from the fan. If there is ab-
normal noise, contact the nearest authorized distrib-
utor or Nederman service for technical advice.
EN
23
To Next Page
Loading...
Need help?
General
