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TROUBLESHOOTING
SYMPTOM CAUSE REMEDY
Motor will not start but does not
blow fuses.
WARNING! Hazardous voltage.
Can shock, burn, or cause death.
Employ a licensed electrician to
perform the wiring. All wiring
must be done in accordance with
applicable national and local
electrical codes.
1. No voltage to motor.
2. Cable splices or motor windings may be
grounded, shorted, or open-circuited.
3. Open circuit in pump control box (3-wire
only); faulty connections; faulty wires.
4. Faulty pressure switch.
5. 3-wire only; Cable leads improperly
connected in the control center.
1. With a voltmeter check; 1) fuse box to make sure full voltage is
available; 2) pressure switch terminals, to make sure pressure
switch is passing voltage correctly; and 3) terminal strips in pump
control box or disconnect switch box to make sure voltage is
available there. On 1½ through 3 hp: Push red overload reset
button(s) on the bottom of control center.
2. Consult certified electrician or service technician.
Do not attempt to disassemble pump or motor.
3. Examine all connections and wires; examine terminal strips in the
control center (3-wire only); repair if necessary.
4. Check pressure switch; replace if necessary.
5. Check wiring diagram on control center panel (or see Figure 9 on
Page 10 of this manual) and color coding of drop cable.
Pressure switch fails to shut
off pump.
1. Voltage is too low; motor will run slowly,
causing low discharge pressure (head)
and high operating current draw.
2. Faulty pressure switch.
3. Drop pipe is leaking.
4. Water level in the well may become too
low when pump is running.
1. Have a certified electrician verify voltage at the electrical disconnect
box (2-wire) or the pump control box (3-wire) while the pump is
operating. If the voltage is low, your power company may need to
raise it or installation may require larger wire. Discuss with the power
company or a certified electrician. Check voltage with a recording
meter if trouble reoccurs.
2. Replace switch.
3. Raise one length at a time until the leak is found. When water stands
in the pipe, there is no leak below this point.
4. Lower pump further into well, make sure it is between five and ten
feet from the bottom of the well. Install a valve into the discharge
pipe between the pump and the pressure tank. Use the valve
to restrict flow until discharge rate does not exceed the well
recovery rate.
WARNING! To prevent the possibility of dangerous high
pressure, install a relief valve in the discharge pipe between
the pump and flow restriction valve. The relief valve must be
capable of passing full pump flow at 75 psi.
Fuses blow or overload protector
trips when motor is running.
1. Low or high voltage.
2. 3-wire only: High ambient (atmospheric)
temperature.
3. 3-wire only: pump control box wrong
horsepower or voltage for installation.
4. Wire size is too small. Improperly
connected in the pump control box.
5. Cable splices or motor windings may be
grounded, shorted or open-circuited.
1. While the motor is running, voltage should not exceed plus 5% or
minus 5% of rated voltage shown on motor nameplate. Call your
power company to adjust line voltage if it is not within these limits.
2. Make sure the pump control box is installed out of direct sunlight.
3. Compare horsepower and voltage rating of motor (from motor
nameplate) with those of the pump control box (from pump control
box nameplate). These numbers must match.
4. See Table 1 on Page 3 of this manual and make sure the wire sizes
match specifications in the table.
5. Consult certified electrician or a service technician to determine if
this is the cause of the problem or not.
Do not attempt to disassemble pump or motor.
12
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