Installation, Operating and Maintenance Instructions (Original Instructions)
15
ABS Piranha submersible grinder pump S10 - PE125
10
Troubleshooting Guide
Fault
Cause
Fix
Pump does not
run
Moisture sensor shutdown.
Check for loose or damaged oil plug, or locate and
replace faulty mechanical seal / damaged o-rings.
Change oil.
1)
Level control override.
Check for float switch that is faulty or tangled and
held in OFF position in sump.
Impeller jammed.
Inspect and remove jammed object. Check gap
between impeller and bottom plate and adjust if
necessary.
Gate valve closed, non-return valve
blocked.
Open gate valve, clean blockage from non-return
valve.
Pump switching on/off
intermittently
Temperature sensor shutdown.
Motor will restart automatically when pump cools
down.
Check thermal relay settings in control panel.
Check for impeller blockage.
If none of above, a service inspection is required.
1)
Low head or flow
Wrong direction of rotation.
Change rotation by interchanging two phases of
the power supply cable.
Gap too wide between impeller and
bottom plate
Reduce gap.
Gate valve partially open.
Open valve fully.
Excessive noise or
vibration
Defective bearing.
Replace bearing.
1)
Clogged impeller.
Remove and clean hydraulics.
Wrong direction of rotation.
Change rotation by interchanging two phases of
the power supply cable.
High voltage
Water inside motor.
Replace stator.
1)
test failure
Stator insulation damaged.
Replace stator.
1)
Power cable or lead damaged.
Replace power cable.
1)
Ohms test
failure
Stator failure.
Repair/replace stator.
1)
Before commencing any inspection or repair work the pump should be completely disconnected from
the mains by a qualified person and care should be taken that it cannot be inadvertently switched back
on.
1)
Pump must be taken to approved workshop.
