STERWINS 900 JET AUTO-3 - Trouble-shooting

8. TROUBLESHOOTING
Problems Probable causes Corrective actions
The Pump fails
to start
No Power
Check Voltage and Ensure pump switch is
switched on
Pump shaft blocked.
Use a screwdriver to turn the motor fan
bolt slightly
No Intake
Intake valve not in water Immerse intake valve in water
Pump head not filled with water Fill with water
Air in intake line Ensure intake line is well sealed
Intake valve dirty or leaks Clean or replace intake valve
Intake cage blocked Clean intake cage
Max. suction height exceeded Check suction height
Inadequate
delivery rate
Suction height too high Check suction height
Intake Valve dirty Clean valve
Water level falling rapidly
Immerse intake valve deeper. and make
sure intake line is well sealed.
The pump stops
during operation
a solid body is blocking the
impeller.
Connect discharge line to water line,
disconnect suction hose, open water line.
Switch on pump several times for approx.
2 sec.
Water is too hot.
Ensure water temperature does not exceed
35°C.
Pump running dry.
Check intake line with water supply. Wait
for pump cool down then switch on again.
DANGER! Risk of injury due to electric shock.
Warning! Before any trouble shooting, switch off the pump and
remove the plug from the socket.
129
EN
20151209 SPECIFICATIONS 1300 JET AUTO 5I-3.indd 129 09/12/15 14:41