DAB VS 35/150 Manuel d'installation et d'entretien - Page 9

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FAULTS

The pump does not start

The system is noisy

The pump is noisy

The pump starts and then stops after a short

time

TROUBLESHOOTING

POSSIBLE CAUSES

No supply voltage.

Incorrect supply voltage.

Faulty capacitor ( single phase motors).

Rotor is blocked by deposits on the rotor.

Flow rate to high.

Air in the system.

Air in the pump.

Intake pressure too low.

Dirt or scale between the rotor and the stator

lining or between the impeller and pump

body.

REMEDIES

Check the electric connections and fuses.

Check the data on the plate and apply the

corect voltage.

Change the capacitor.

Select the maximum speed and/or free with a

screwdriver.

Select a lower speed.

Bleed the system.

Bleed the pump.

Increase the intake pressure.

Check the shaft is turning freely. Remove

any dirt and/or scale.