Operating instructions
A4E450-AU03-01
Translation of the original operating instructions
Impeller running
roughly
Imbalance in rotating
parts
Clean the device; if
imbalance is still
evident after cleaning,
replace the device.
If you have
attached any weight
clips during cleaning,
make sure to remove
them afterwards.
Motor does not turn
Mechanical blockage
Switch off, de-
energise, and
remove mechanical
blockage.
Mains supply voltage
faulty
Check mains supply
voltage,
restore power
supply.
Faulty connection
De-energise, correct
connection, see
connection diagram.
Thermal overload
protector responded
Allow motor to cool
off, locate and rectify
cause of error, if
necessary cancel
restart lock-out
Unacceptable
operating point
Check operating point
Overtemperature of
motor
Ambient temperature
too high
Lower ambient
temperature if possible
Insufficient cooling
Improve cooling
If you have any other problems, contact ebm-papst.
5.1 Cleaning
To ensure a long service life, the fans have to be regularly checked for
proper operation and degree of soiling. The frequency of the checks is to
be adapted to the occurrence of soiling.
DANGER
Risk of injury from rotating fan.
→ Only clean when not in motion. Interrupt the power supply,
secure against renewed switch-on. Secure against start-up,
prevent air flow.
;
Dirt deposits on the motor housing could lead to overheating of the
motor.
;
Dirt on the impeller can cause vibration which would shorten the
service life of the fan.
;
Severe vibration could destroy the fan.
;
In such cases immediately switch off and clean the fan.
;
The preferred method of cleaning is dry cleaning, e.g. using
compressed air.
;
Use is never to be made of corrosive cleaning agents!
NOTE
Damage to the device during cleaning
Malfunction possible
→ Do not clean the device using a water jet or high-pressure
cleaner.
→ Do not use any acid, alkali or solvent-basedcleaning
agents.
→ Do not use any pointed or sharp-edged objects for cleaning
;
Completely remove any cleaning agents used.
;
Immediately switch off and replace the device if severe corrosion is
apparent at load-bearing or rotating parts.
;
Repairs to load-bearing or rotating parts are not permissible!
;
Operate the fan for 2 hours at maximum speed to permit the
evaporation of any water which may have ingressed.
;
If cleaning does not eliminate vibration, the fan may have to be re-
balanced. In such cases please contact ebm-papst.
;
The fan is provided with maintenance-free ball bearings. The lifetime
lubrication of the ball bearings is designed for a service life of 40,000
hours.
;
Please contact ebm-papst if bearing replacement is required after this
period.
;
Adapt the maintenance intervals to the dust pollution occurring.
5.2 Safety test
What has to
be tested?
How to test?
Frequency
Which
measure?
Check the
protective
casing against
accidental
contact for
damage and to
ensure that it is
intact
Visual inspection At least every
6 months
Repair or
replacement of
the device
Check the
device for
damage to
blades and
housing
Visual inspection At least every
6 months
Replacement of
the device
Mounting the
connection lines
Visual inspection At least every
6 months
Fasten
Mounting of
protective earth
connection
Visual inspection At least every
6 months
Fasten
Check the
insulation of the
wires for damage
Visual inspection At least every
6 months
Replace wires
Tightness of
screwed cable
gland
Visual inspection At least every
6 months
Retighten,
replace if
damaged
Condensate
discharge holes
for clogging, as
necessary
Visual inspection At least every
6 months
Open bore holes
Weld seams for
crack formation
Visual inspection At least every
6 months
Replace device
Abnormal
bearing noise
acoustic
At least every
6 months
Replace device
Item no. 11738-5-9970 · ENG · Revision 209403 · Release 2019-11-29 · Page 11 / 12
ebm-papst Mulfingen GmbH & Co. KG · Bachmühle 2 · D-74673 Mulfingen · Phone +49 (0) 7938 81-0 · Fax +49 (0) 7938 81-110 · [email protected] · www.ebmpapst.com
