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Troubleshooting
48
4.
TROUBLESHOOTING
Possible faults and troubleshooting
Fault
Possible reasons
Fault handling
The fan does not
Start up during the
Ventilator start-up.
No power supply.
Make sure that the ventilator properly connected
to the Power mains and make any corrections, if
necessary.
Motor is jammed, the
impellers are clogged.
Turn the ventilator off. Troubleshoot the motor
jam and the impeller dogging. Clean the blades.
Restart the ventilator.
Low air flow.
Low set fan speed.
Set higher speed.
The filter, the fan or
the exchanger are
dirty.
Clean or replace the filter, clean the fan
and the exchanger. For the exchanger
and the filter maintenance, refer to page
XX.
High noise,
vibration.
The impeller is Soiled.
Clean the impeller.
Loose screw Connection
of the ventilator casing
or the ventilation hood.
Tighten the screws of the ventilator or the
outer ventilation hood.