Trouble-Shooting - STERWINS 900 JET AUTO-3 Manual

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