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12
TROUBLE SHOOTING
PROBLEM CHECK CORRECTIVE ACTION
MOTOR WILL NOT START BUT No voltage at submersible motor control or disconnect switch. Replace blown fuses.
FUSES DO NOT BLOW
No voltage at pressure switch. Replace faulty pressure switch.
No voltage at submersible motor control box. Rewire supply to submersible motor control.
Cable or splices bad. Consult licensed electrician or serviceman.
Submersible motor control box incorrectly wired. Reconnect submersible motor control correctly
(see Wiring Installation Diagrams).
FUSES BLOW OR TRIPS Wrong size fuse or wrong time delay fuse. Check fuse size against chart, Page 4. Install correct fuse or
WHEN MOTOR STARTS size time delay fuse.
Wire size too small. Check wire size against chart, Page 4. Install correct size wire.
Starting capacitor defective, or blown Check submersible motor control box to see if starting capacitor
has blown out. Replace starting capacitor.
Voltage is too low or high voltage. Check that line voltage is within ±10% of nameplate. If voltage
variation is greater than ±10%, call power
company or local hydro authority to adjust voltage.
Power supply wire leads not correctly connected to Check submersible motor control wiring diagram against
submersible motor control box. incoming power hookup. Check power supply wire
motor control cover. Reconnect power supply wires so
wire color code matches motor lead color code.
Broken wire in submersible motor control box. Examine all connections and wiring in submersible. Disconnect
power and repair or replace faulty wire.
Pump or motor stuck or binding. Check for locked shaft in pump. If necessary, pull pump (make all
possible above ground checks first). If pump is locked, replace it.
Clean well of all sand or lime before reinstalling pump.
FUSES BLOW OR OVERLOAD The voltage is either too high or too low. Check that line voltage is within ±10% of rated nameplate
PROTECTOR TRIPS WHEN MOTOR voltage while motor is running. If voltage variation is more
IS RUNNING than ±10%, call power voltage while motor is running.
High ambient (atmospheric) temperature is too high. Check temperature of submersible motor control. Do not mount
submersible motor control in direct sunlight.
Submersible motor control with wrong voltage or horsepower rating. Compare voltage and horsepower on motor nameplate
with those given on control box nameplate or on the
circuit diagram inside submersible motor control cover. Replace the
control box if the numbers do not match.
Wire size too small. Check wire size against the table in the wiring section of this
manual. Install the correct size wire.
Cable splices or motor leads grounded, shorted or open. Consult a licensed electrician or qualified serviceman. Do not
attempt to disassemble the pump or motor.
PUMP STARTS TOO FREQUENTLY Leaks in system. Check all tank connections with soapsuds for air leaks. System
must be air and water tight.
The pressure switch is defective. Check for defective switch or switch out of adjustment. Re-adjust
or replace pressure switch.
Tank waterlogged. Pre-charged tanks: check tank pre-charge air pressure and check
for leak in bladder. Adjust air pressure to 2 PSI (13.8kPa)
less than pump cut-in pressure (when there is no water
pressure on system). Replace bladder if necessary.
Air over water tanks: check for air leaks. Check Air Volume Control
(AVC). Check snifter valve operation. Repair or replace tanks;
replace snifter valves if necessary.
Leak in drop pipe. Raise drop pipe one length at a time until water stands in pipe.
Replace the pipe above that point.
Pressure switch too far from tank. Measure distance from pressure switch to tank. Move switch to
within 1’ (.3M) of tank.
LITTLE OR NO WATER DELIVERED The bleeder orifice check valve is stuck or installed backwards Examine valve. If stuck, free valve; if installed backwards, reverse it.
(standard tank only).
Low water level. Determine lowest water level in well while pump is running and
compare to pump depth setting. Lower pump further into well (but
at least 5’ (1.6M) above bottom of well). Throttle pump discharge
until discharge equals recovery rate of well.
NOTICE: Running pump while airlocked can cause loss of
prime and seriously damage pump.
Low voltage. Check voltage at submersible motor control with pump running.
Check incoming wire size and power supply wire size against
the tables in the wiring section of this manual. Install larger wire
from meter to submersible motor control. Install larger wire from
submersible motor control to pump.
If necessary, have power company raise supply voltage.
Plugged intake screen. Pull pump and check condition of screen. Clean or replace as necessary.
Check valve at pump if discharge is stuck. Pull pump and examine check valve. Free check valve.
Impellers and diffusers are worn. Make sure system is clear of obstructions and pump is in solid
water and operating normally.
AIR OR MILKY WATER DISCHARGE Gas in well water. Check for presence of gas in well water. Remove bleeder orifices;
FROM FAUCETS Remove bleeder orifices; plug tees. Be sure plugged tees
do not leak. If necessary, separate gas from air before
it enters pressure tank.
Air volume control not working (standard tanks only) Make sure ports and ball check valves are clear. Replace control if
necessary
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