10
TROUBLE SHOOTING
PROBLEM
CHECK
CORRECTIVE ACTION
For parts or assistance, call ECO-FLO Customer Service at 1-877-326-3561
No voltage
Wrong size fuse or wrong size time
delay fuse.
Wire size too small.
Starting capacitor defective, blown, or
wrong size. Low or high voltage.
Power supply wire leads not correctly
connected to submersible motor
control.
Broken wire in submersible motor
control.
Pump or motor stuck or binding.
Power supply wire splices or motor
leads grounded, shorted, or open.
Low or high voltage.
High ambient (atmospheric) Check
temperature.
Submersible motor control with wrong
voltage or horsepower rating.
Wire size too small.
Leaks in system.
Pressure Switch.
Check Valve leaking.
Tank waterlogged.
Leak in drop pipe.
Pressure switch too far from tank.
MOTOR WILL NOT START BUT FUSES DO NOT BLOW
FUSES BLOW OR TRIPS WHEN MOTOR STARTS
FUSES BLOW OR OVERLOAD PROTECTOR TRIPS WHEN MOTOR IS RUNNING
PUMP STARTS TOO FREQUENTLY
No voltage at submersible motor control or
disconnect switch.
No voltage at pressure switch.
No voltage at submersible motor control.
Cable or splices bad.
Submersible motor control incorrectly wired.
Check fuse size against chart, Page 3.
Check wire size against chart, Page 3.
Check submersible motor control to see
if starting capacitor has blown out. Check
capacitor rating. Check start relay. Check
that line voltage is within ±10% of nameplate
rated voltage while motor is running.
Check submersible motor control wiring
diagram against incoming power hookup.
Check power supply wire color coding.
Examine all connections and wiring in
submersible motor control.
Check for locked shaft in pump.
Consult licensed electrician or qualified
serviceman.
Check that line voltage is within ±10% of
rated nameplate voltage while motor is
running.
Check temperature of submersible motor
control.
Compare voltage and horsepower on motor
nameplate with those given on submersible
motor control nameplate or on circuit diagram
inside submersible motor control cover.
Check wire size against chart, Page 3.
Check all tank connections with soapsuds for
air leaks. Check plumbing for leaks.
Checks for defective switch or switch out of
adjustment.
Make sure check valves are not leaking back.
Pre-charged tanks: chec tank pre-charge air
pressure, check for leak in bladder.
Air over water tanks: check for air leaks,
check air volume control (AVC)
Raise drop pipe one length ata time until
water stands in pipe.
Measure distance from pressure switch to
tank.
Replace blown fuses.
Replace faulty pressure switch.
Rewire supply to submersible motor control.
Consult licensed electrician or serviceman.
Reconnect submersible motor control correctly (see Wiring
Installation Diagrams).
Install correct fuse or time delay fuse.
Install correct size wire.
Replace starting capacitor. Replace start relay if defective. If
voltage variation is greater than ±10%, call power company or
local hydro authority to adjust voltage.
Reconnect leads to match wiring diagram in submersible motor
control cover. Reconnect power supply wires so wire color code
matches motor lead color code.
Disconnect power and repair or replace faulty wire. 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.
Do not attempt to disassemble pump or motor.
If voltage variation is more than ±10%, call power company to
adjust voltage.
Do not mount submersible motor control in direct sunlight.
Replace submersible motor control if numbers do not match.
Use only submersible motor control designed for use with pump.
Install correct wire size.
System must be air and water tight.
Re-adjust or replace pressure switch.
Replace check valves if necessary.
Pre-charge tanks: 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: repair or
replace tanks, replace AVC if necessary. Replace pipe above
that point.
Move switch to within 1’ (.3M) of tank.
