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