Vtronic VT-501 - Troubleshooting; Fan Startup Issues; Low Airflow Problems

TROUBLESHOOTING
Operation Instruction for the user and the qualified installer
17
Possible faults and troubleshooting
The fan does not
start up during the
ventilator start-up.
Automatic switch
tripping following the
ventilator turning on.
Low air flow.
Low set fan 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 15.
Set higher speed.
No power supply.
Motor is jammed, the
impellers are clogged.
Overcurrent resulted
from short circuit in
the electric circuit.
Turn the ventilator off.
Troubleshoot the motor
jam and the impeller
dogging. Clean the
blades. Restart the
ventilator.
Turn the ventilator off.
Contact the service
center.
Make sure that the
ventilator is properly
connected to the Power
mains and make any
corrections, if necessary.
Fault Possible reasons Fault handling