Problem: Motor deactivated by winding protective contact
Possible cause
No or poor venting in the
installation shaft.
Too high ambient temperature
Too long in operation at max.
speed.
Problem: Wrong rotation direction of the turbine
Possible cause
Wiring not according to circuit
diagram.
Problem: Magnetic coupling is disengaged
Possible cause
Damage to the magnet unit or
plain bearing.
Impeller is blocked.
Problem: Error in the frequency converter
Possible cause
Observe the manufacturer's operating instructions.
08|2020
Solution
Let the motor cool down
for about 30 minutes.
Improve ventilation with
supply and exhaust air
(chimney effect).
Adapt operating time.
Solution
Have it checked by an
electrician.
Solution
Contact customer
services.
Clean interior parts.
Solution
Faults
EN 45