10
En
gli
sh (US
)
8.2 Troubleshooting chart
Problem
Possible cause/how to check
Possible remedy
1. Pump does not
run.
a) No power at pump panel.
How to check:
Check for voltage at panel.
If no voltage at panel, check feeder
panel for tripped circuits.
b) Fuses are blown or circuit
breakers are tripped.
How to check:
Remove fuses and check for
continuity with ohmmeter.
Replace blown fuses or reset circuit
breaker. If new fuses blow or circuit
breaker trips, the electrical
installation and motor must be
checked.
c) Defective controls.
How to check:
Check all safety and pressure
switches for operation. Inspect
contacts in control devices.
Replace worn or defective parts.
d) Motor and/or cable are defective.
How to check:
Turn off power. Disconnect motor
leads from control box. Measure
the lead-to-lead resistances with
the ohmmeter (Rx1). Measure
lead-to-ground values with
ohmmeter (Rx100K). Record
measured values.
If open motor winding or ground is
found, remove pump and recheck
values at the surface. Repair or
replace motor or cable.
e) Defective capacitor (single-phase
only).
How to check:
Turn off the power, then discharge
capacitor. Check with an
ohmmeter (Rx100K). When meter
is connected, the needle should
jump forward and slowly drift back.
If there is no ohmmeter needle
movement, replace the capacitor.
SPE_ US.book Page 10 Thursday, May 5, 2011 8:18 PM
