Davey SS30-25 CIRCULATION PUMP - Manual (Page 4)

8.1 The circulator is noisy
a) Air in circulator
- Bleed the circulator, loosen the rear
plug; continue until there are no more air
bubbles, then screw the plug back in.
b) The suction pressure is too low
- Raise the pressure in the circuit.
c) Considerable flowing water noise
- Consider a slower speed.
d) Foreign bodies in impeller
- Remove the motor and clean the
impeller.
8.2 The circulator fails to start
a) Shaft stalled by fouling after a
prolonged shutdown
- Free the shaft; remove the rear plug.
Use a flat bladed screwdriver to turn the
motor shaft. Then reinsert the rear plug
(see FIG. 7).
b) No power supply to circulator
- Check that the motor is connected.
- Check the fuses of the installation.
c) Capacitor defective
- Replace it; the characteristics are
indicated on the rear data plate ( FV).
For changing the capacitor lift-up the
fixing clip of the capacitors wires (see
FIG. 5 - rep. A). For removing the wires,
insert the new capacitor wires then
press the clip for locking.
d) Foreign bodies in impeller
- Remove the motor and clean the
impeller.
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