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Malfunctions
Causes
Remedy
Fan wheel does not rotate
Mechanical blocking
Disconnect the power supply,
remove blockage
Connection failure
Check connections according
to pin assignment
Fan power too low
Speed too low
Check voltage
Suction or pressure paths are blocked
Remove obstructions
Power consumption too high
Incorrect supply voltage
Check supply voltage
Unusual sounds
Bearing damage
Replace product
Fan wheel is touching or has
imbalance
Clean product
If imbalance persists, replace
product
Foreign objects in the product
Remove foreign objects
Oscillations/vibrations
Fastening screws loose
Retighten screws
Turbulence in the system
Check air flow in the system
A I R P E R F E C T L Y E N G I N E E R E D
11
11. INSPECTION
12. MALFUNCTIONS
Point in time
Checks
Means of checking
Annually, at standstill
General condition
Visual inspection
Annually, during operation
Noise/bearing condition
Acoustic inspection
Vibrations
Visual inspection
13. DISPOSAL
Micronel products are small electrical appliances according to WEEE 2012/19/EU. They must be
disposed of in accordance with the customary national regulations.
The products are delivered in cardboard or plastic packaging. Keep the packaging
for repackaging the product or dispose of it according to local regulations.