Maico MDR EC Série Notice De Montage Et Mode D'emploi page 109

MDR .. EC
VENTILATOREN
Fan does not switch on/does not run.
Cause 1: No mains voltage, earth fault.
Measure: Check whether the power supply is
guaranteed (mains fuse, service switch, motor
connection).
Cause 2: Wiring not carried out correctly.
Measure: Check wiring connection wiring

diagram.
Cause 3: Thermal motor protection has trig-
gered (motor is overheated).
Measure: Ensure that the air ways are free, re-
move foreign objects if necessary. Check room
temperature. Check voltage. If necessary, install
air filter in duct system.
Cause 4: The impeller is blocked or dirty.
Measure: Remove foreign objects or dirt.
Fan runs too slowly / volumetric flow too low
Cause 1: Impeller is rubbing
Measure: Remove foreign objects or dirt.
Cause 2: Deposits on the impeller and in the
housing caused by dust in the air.
Measure: Install air filter in duct system. Ensure
DE
FIG
FR
UK