Maintenance – All Motors

System Troubleshooting

Motor Does Not Start

POSSIBLE CAUSE

CHECKING PROCEDURES

CORRECTIVE ACTION

A. No power or incorrect voltage.

Check voltage at line terminals.

Contact power company if voltage is incorrect.

The voltage must be ± 10% of rated voltage.

 

 

 

 

 

 

Check fuses for recommended size and

 

B. Fuses blown or circuit breakers tripped.

check for loose, dirty or corroded

Replace with proper fuse or reset

connections in fuse receptacle. Check

circuit breakers.

 

 

for tripped circuit breakers.

 

 

 

 

 

Check voltage at contact points. Improper

 

C. Defective pressure switch.

contact of switch points can cause voltage

Replace pressure switch or clean points.

 

less than line voltage.

 

 

 

 

D. Control box malfunction.

For detailed procedure, see pages 46-54.

Repair or replace.

 

 

 

E. Defective wiring.

Check for loose or corroded connections

Correct faulty wiring or connections.

or defective wiring

 

 

 

 

 

 

Check for misalignment between pump

 

F. Bound pump.

and motor or a sand bound pump.

Pull pump and correct problem. Run new

Amp readings will be 3 to 6 times higher

installation until the water clears

 

 

than normal until the overload trips

 

 

 

 

G. Defective cable or motor.

For detailed procedure, see pages 44 & 45.

Repair or replace.

 

 

 

Motor Starts Too Often

A. Pressure switch.

Check setting on pressure switch and

Reset limit or replace switch.

examine for defects.

 

 

 

 

 

B. Check valve - stuck open.

Damaged or defective check valve will

Replace if defective.

not hold pressure.

 

 

 

 

 

C. Waterlogged tank.

Check air charge

Clean or replace.

 

 

 

D. Leak in system.

Check system for leaks.

Replace damaged pipes or repair leaks.

 

 

 

42

Page 51
Image 51
Franklin 2007 manual Maintenance All Motors, System Troubleshooting, Motor Does Not Start, Motor Starts Too Often