Motor Troubleshooting Flow Charts - Pentair Pentek Series Electronic Manual

SECTION 13: Troubleshooting

13.2 Motor Troubleshooting Flow Charts

Troubleshooting Flow Chart
Follow the arrow from the symptom on the left, to the inspection in the middle box.
If the middle box describes to symptom, proceed to the box on the right for the solution.
Motor Does
Not Start
92
No power or Incorrect Voltage.
Using voltmeter, check the line terminals.
Voltage must be + / - 10% of rated voltage.
NO
Fuse blown or circuit breakers tripped.
Check fuses for correct size. Check for
loose, dirty or corroded connections in fuse
holder. Check for tripped fuses.
NO
Defective Pressure Switch.
Check voltage at contact points. Improper
contact of switch points can cause
lower voltage.
NO
Defective Wiring.
Check for loose or corroded connections.
Check motor lead terminals with voltmeter
for voltage.
Check resistance of the lines with an
ohmmeter (POWER OFF!)
NO
Bound Pump.
Locked rotor condition can result from
misalignment between pump and motor,
or sand-bound pump. Amp readings will be
3 to 6 times higher than normal.
Contact power company if
YES
voltage is incorrect.
Replace with proper fuse
YES
or reset circuit breaker.
Replace pressure switch.
YES
Correct faulty wiring or
YES
connections.
Repair or replace pump
YES
assembly.