FLYGT 4650 - Motor Protection Tripping

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2. The machine starts but motor protection trips
Yes
Adjust.
Yes
Clean the propeller.
Check that correct propeller size is assembled.
If anything else is wrong, contact Flygt service shop.
No
Check the fuses.
Notify an electrician.
Yes
Check if applicable capacitors, contact Flygt service shop.
No
Contact Flygt service shop.
Yes
Contact Flygt service shop.
Yes
Contact Flygt.
Change to a propeller with a lower pitch.
Change to a more suitable mixer.
Yes
Replace the overload protection.
Contact Flygt service shop.
* only for PP-pump
Is the motor protection set too low?
(Check with data plate)
No
Is the propeller difficult to
rotate by hand?
WARNING: Disconnect power
before checking the propeller
No
Is the installation receiving full
voltage on all three phases?
Yes
Are the phase currents uneven
or too high?
No
Is r/min according to data plate
and specification?
Yes
Is the density of the liquid too high?
No
*Is the pumping head too high or are
the loses over checkvalve too high?
No
Fault on overload protection?
No