Troubleshooting Guide - ABS XFP series Installation, Operating And Maintenance Instructions

20 Installation, Operating and Maintenance Instructions (Original Instructions)
ABS submersible sewage pump XFP 80C - 201G
10

Troubleshooting Guide

Fault
Pump does not
run
Pump switching on/off
intermittently
Low head or fl ow
Excessive noise or
vibration
High voltage
test failure
Ohms test
failure
Before commencing any inspection or repair work the pump should be completely disconnected from the
mains by a qualifi ed person and care should be taken that it cannot be inadvertently switched back on.
Pump must be taken to approved workshop.
1)
Cause
Moisture sensor shutdown.
Level control override.
Impeller jammed.
Gate valve closed, non-return valve
blocked.
Temperature sensor shutdown.
Wrong direction of rotation.
Gap too wide between impeller and
bottom plate
Gate valve partially open.
Defective bearing.
Clogged impeller.
Wrong direction of rotation.
Water inside motor.
Stator insulation damaged.
Power cable or lead damaged.
Stator failure.
Fix
Check for loose or damaged oil plug, or locate and
replace faulty mechanical seal / damaged o-rings.
Change oil. 1)
Check for fl oat switch that is faulty or tangled and
held in OFF position in sump.
Inspect and remove jammed object. Check gap
between impeller and bottom plate and adjust if
necessary.
Open gate valve, clean blockage from non-return
valve.
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.
Change rotation by interchanging two phases of
the power supply cable.
Reduce gap (see page 13).
Open valve fully.
1)
Replace bearing.
Remove and clean hydraulics.
Change rotation by interchanging two phases of
the power supply cable.
Replace stator. 1)
1)
Replace stator.
1)
Replace power cable.
Repair/replace stator. 1)
1)