Maico EZQ B Serie Montage- Und Betriebsanleitung Seite 51

EZQ.. B/D/E, DZQ.. B/D
EZS.. B/D/E, DZS.. B/D
VENTILATOREN
diagram.
Cause 3: Thermal overload protection has
triggered (motor is overheated).
Measure EZQ../EZS..: None. After it has cooled
off, the motor automatically turns on.
Measure DZQ../DZS..: Leave fan off until the
motor and temperature limiter have cooled
down (up to
30 minutes). Only then switch it back on.
Cause 4: The impeller is blocked or dirty.
Measure: Remove foreign bodies or dirt.
Cause 5: Winding short
Measure: Replace fan.
Cause 6: Air flows in wrong direction (motor
turns wrong direction).
Measure: Check wiring connection wiring

diagram. Reverse polarity if necessary.
EZQ.. B/EZS.. B units: Fan doesn't start up or
motor too hot.
Cause: Capacitor not installed/incorrectly
installed
Measure: Connect the capacitor correctly.
EZQ.. B/EZS.. B units: Slight contact with the sta-
tionary impeller may cause the fan to start.
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