VII. TROUBLE SHOOTING PROCEDURES (con’t)
PROBLEM
POSSIBLE
CAUSES
SOLUTIONS
Pump will not prime
(standard, not self-
priming)
Suction line is not
flooded with water.
Debris in basket
strainer.
Air leaks.
Pump rotating wrong
direction.
1. Check and clean out pump suction pre-
strainer as required.
2. Check and clean pump pre-strainer as
required.
3. Check and tighten all connections as
required.
4. Check pump rotation against motor
rotation arrow and rewire if necessary
for proper rotation.
Pump motor runs hot
Motor located in
direct sunlight.
Poor ventilation.
Low voltage
1. Cover motor with some type of sun
shade if possible.
2. All motors require air movement for
cooling. Make sure that motor has a
fresh source of air for cooling.
3. Check voltage with meter.
System “Trips” out when
running and shuts down
Overload setting is
too low.
Supply voltage is
incorrect.
System flow is too
high.
Loose Wire.
1. Check overload setting in control panel.
Overload setting should be just above
full load amp value on motor nameplate.
2. Check incoming supply voltage with
STS system power requirements
located on control panel door (outside
and inside).
3. Install valve on system discharge
to control flow.
4. Check all wires for loose connections.
Unit stays in backwash
or valves do not operate
correctly
Incorrect timer
settings.
Wire may be loose or
wired incorrectly.
1. Refer to Section IV Paragraph 12 for
factory settings.
2. Contact factory while onsite if possible
for further troubleshooting review.
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