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. | |||
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| Check fuses for recommended size and |
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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. | ||
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| for tripped circuit breakers. |
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| Check voltage at contact points. Improper |
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C. Defective pressure switch. | contact of switch points can cause voltage | Replace pressure switch or clean points. | |
| less than line voltage. |
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D. Control box malfunction. | For detailed procedure, see pages | Repair or replace. | |
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E. Defective wiring. | Check for loose or corroded connections | Correct faulty wiring or connections. | |
or defective wiring | |||
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| Check for misalignment between pump |
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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 | ||
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| than normal until the overload trips |
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G. Defective cable or motor. | For detailed procedure, see pages 44 & 45. | Repair or replace. | |
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Motor Starts Too Often
A. Pressure switch. | Check setting on pressure switch and | Reset limit or replace switch. | |
examine for defects. | |||
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B. Check valve - stuck open. | Damaged or defective check valve will | Replace if defective. | |
not hold pressure. | |||
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C. Waterlogged tank. | Check air charge | Clean or replace. | |
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D. Leak in system. | Check system for leaks. | Replace damaged pipes or repair leaks. | |
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