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5
FAULTS, POSSIBLE CAUSES AND REMEDIES
Replace your product by a new one, do not repair it.
DANGER
Electrical voltage at motor
Wait five minutes after the voltage
(all poles) has been switched off
before opening the product.
Fault/
Error
Possible cause
Possible remedial
action
Mechanical
blocking
Switch off, de-energize
and eliminate
mechanical blocking.
Mains voltage fault Check mains voltage,
re-connect voltage
supply.
Connection faulty
Rectify connection, see
pin connection.
Motor is too hot
Allow motor to cool /
identify cause of fault.
Motor winding
interrupted
Exchange product.
Motor is not
rotating
Ambient
temperature too
high
Reduce ambient
temperature if possible.
Impeller out of
true
Unbalance of
rotating parts
Clean product if still
unbalanced after
cleaning, exchange
product.
In case of further faults, contact ebm-
papst.
Technical safety inspection
What requires checking?
How to
check?
Frequency
Protection against accidental
contact/ protective clothing
Visual
inspection
min. 1/2
yearly
Check product for damage
Visual
inspection
min. 1/2
yearly
Fixation of product
Visual
inspection
min. 1/2
yearly
Fixation of wires
Visual
inspection
min. 1/2
yearly
Insulation of wires
Visual
inspection
min. 1/2
yearly
Check impeller for
wear/sediments/ corrosion
Visual
inspection
min. 1/2
yearly
6
COMPLIANCE
Содержание ACi 4400 L
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