FLYGT MP-3067 - FLYGT Low Output Troubleshooting

non-return valve.
Does the contactor’s self-
Yes
Check:
holding function break?
- contactor connections.
- the voltage in the control circuit in relation
No
to the rated voltage on the coil.
- the functioning of stop sensor. The voltage
drop in the line at the starting surge makes
the contactor’s self-holding break.
Is the start relay correctly set?
No
Adjust.
(Only for 1-phase motor.)
Yes
Is the run capacitor defective?
Yes
Replace.
(Only for 1-phase motor.)
No
Contact service shop.
5. Pump runs but delivers too little or no water.
Check:
- direction of rotation pump.
- that valves are open and intact.
- that pipes, impeller and strainer are not clogged.
- that the impeller rotates easily.
- that the suction lift has not been altered.
- for leakage in the pump installation.
- for wear on wear ring, impeller, pump casing/flange, suction bottom, diffuser, disc, diffuser.
See also under “Inspection”.
Do not override the motor protection repeatedly if it has tripped.