Trouble Shooting
Problem
Fault
Solution
Motor will not start
Electrical supply not connected
Connect the electrical supply.
Thermoswitch not reset or defect (T-mod)
Dismantle top cover and clean or exchange
cooling air filter. Reset the thermoswitch. If the
thermoswitch is defect, please contact the
distributor.
Switch supply or cable defect
Contact the distributor
Radio interference suppression defect
Contact the distributor
None or bad suction capacity
Switch not completely turned on
Turn switch on
One or two motors defect
Dismantle top cover, control the brushes and
commutators. If the brushes are worn out, please
replace. If the commutators are burnt, contact the
distributor.
Clogged suction hose or inlet
Disconnect suction hose. Turn and suck in the
opposite direction. If still clogged, open it with a
rod.
Clogged filter
For filter bag and cartridge filter cleaning; please
see operation instruction.
NCF filter cleaning; check filter cleaning
function by listening to noise from blow-out
valve. If not in operation, check quick coupling
and function of blow-out valve.
Leaking suction hose
Tape or replace suction hose.
Leaking gaskets
Damage on neoprene gasket; remove and
replace. Use suitable two-component glue.
Discharge valve open.
Close valve
Dust in exhaust air
Filter wrongly or not installed
Check the filter and change if necessary.
Filter defect
Change filter.
Water in exhaust air
Filter basket or float ball wrongly or not
installed
Reattach filter basket or float ball.
Please see operation instruction.
Filter basket or float ball defect
Change.
Abnormal noise level
Leaking gaskets
Damage on neoprene gasket; remove and
replace. Use suitable two-component glue.
Sound absorbing material defect
Dismantle the silencer hood and remove dirt.
Replace damaged silencing material.
Summary of Contents for 42451002
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