NB!
Always break current before working with the fan.
• Before service, maintenance or repair, disconnect
power and wait until the impeller has stopped.
• When cleaning and maintaining the fan always have
to be secured when open, so it can’t fall down and
cause bodily injury.
• The fan must be cleaned regularly, at least once
per year to maintain the capacity and to avoid
unbalance which may cause unnecessary damage
to the bearings.
• No special tools needed when cleaning.
• The fan bearings are maintenance-free and should
be replaced only when necessary.
• When cleaning the fan, high-pressure cleaning or
strong dissolvent must not be used.
• Cleaning should be done without displacing or
damaging the impeller
.
• The capacitor in the single-phase fans has finite life-
time and should be exchanged after 45.000 hours of
operation (about 5 years) to secure maximum func-
tion. Defective capacitor can cause damage.
• Notice the weight of the fan when closing after
inspection/cleaning.
• Mount back all details in reverse order. Check that
the fan is closed and locked before starting.
• Make sure that there is no noise from the fan.
F A U L T D E T E C T I O N
13
E N G L I S H
M A I N T E N A N C E
Attention, look out for sharp edges and corners.
Loosen the screws (4x M8),
open the fan and
secure so it can’t fall down.
1. Make sure that the power is connected to the fan.
2. Disconnect the power and verify that the impeller
is not blocked.
3. For fans with EC motor, check the LED flashing
code. For more information see page 15-16.
4. If the previous steps doesn´t solve the problem,
contact your fan supplier.
5. If the fan is returned to the supplier, it must be
cleaned, the motor cable must be undamaged and a
detailed fault desription must be enclosed.
W A R R A N T Y
The warranty is only valid under condition that the
fan is used according to this “Directions for use” and
a regular maintenance has been made and record. The
warrantor is responsible only for the operation if app-
roved accessories are used. The warranty does not cover
product failures caused by accessories/equipment from
other manufacturers.
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