Motor Runs Continuously
Cause of Trouble Checking Procedure Correction Action
Motor Runs But Overload Protector Trips
Cause of Trouble Checking Procedure Correction Action
System Trouble Shooting
Motor Does Not Start
Cause of Trouble Checking Procedure Correction Action
A. No power or incorrect voltage. Using voltmeter check the line terminals. Voltage must Contact power company if voltage is incorrect.
be + 10% of rated voltage.
B. Fuses blown or circuit breakers tripped. Check fuses for recommended size and check for Replace with proper fuse or reset circuit breaker.
loose, dirty, or corroded connections in fuse receptacle.
Check for tripped circuit breaker.
C. Defective pressure switch. Check voltage at contact points. Improper contact of Replace pressure switch or clean points.
switch points can cause voltage less than line voltage.
D. Control box malfunction. See Franklin Electric Maint. and Installation Manual. Repair or replace.
E. Defective cable or motor.
F. Defective wiring. Check for loose or corroded connections. Check motor Correct faulty wiring or connections.
lead terminals with voltmeter for power.
G. Bound pump. Locked rotor conditions can result from misalignment If pump will not start with several trials, it must be
between pump and motor or a sand bound pump. pulled and the cause corrected. New installations
Amp readings 3 to 6 times higher than normal will be should always be run without turning off until
indicated. water clears.
A. Pressure switch. Check setting on pressure switch and examine Reset limit or replace switch.
for defects.
B. Check valve stuck open. Damaged or defective check valve will not hold Replace if defective.
pressure.
C. Waterlogged tank (air supply). Check air charging system for proper operation. Clean or replace.
D. Leak in system. Check system for leaks. Replace damaged pipes or repair leaks.
A. Pressure switch. Switch contacts may be “welded” in closed position. Clean contacts, replace switch or readjust setting.
Pressure switch may be set too high.
B. Low level well. Pump may exceed well capacity. Shut off pump, wait Throttle pump output or reset pump to lower level
for well to recover. Check static and drawdown level Do not lower if sand may clog pump.
from well head.
C. Leak in system. Check system for leaks. Replace damaged pipes or repair leaks.
D. Worn pump. Symptoms of worn pump are similar to those of drop Pull pump and replace.
pipe leak or low water level in well. Reduce pressure
switch setting, if pump shuts off worn parts may be at
fault. Sand is usually present in tank.
E. Loose or broken motor shaft. No or little water will be delivered if coupling between Check for damaged shafts if coupling is loose and
motor and pump shaft is loose or if a jammed pump replace worn or defective units.
has caused the motor shaft to shear off.
F. Pump screen blocked. Restricted flow may indicate a clogged intake screen Clean screen and reset at less depth. It may be
on pump. Pump may be installed in mud or sand. necessary to clean well.
G. Check valve stuck closed. No water will be delivered if check valve is in closed Replace if defective.
position.
H. Control box malfunction. See Franklin Electric Maint. and Installation Manual. Repair or replace.
A. Incorrect voltage. Using voltmeter, check the line terminals. Voltage must Contact power company if voltage is incorrect.
be within + 10% of rated voltage.
B. Overheated protectors. Direct sunlight or other heat source can make control Shade box, provide ventilation or move box away
box hot causing protectors to trip. The box must not from heat source.
be hot to touch.
C. Defective control box. See Franklin Electric Maint. and Installation Manual. Repair or replace.
D. Defective motor or cable.
E. Worn pump or motor.
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Motor Starts Too Often
Cause of Trouble Checking Procedure Correction Action
Trouble shooting continued on back page
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