North America / English Change

4 in. Submersible

Possible Cause Corrective Action
FUSES BLOW
Incorrect voltage at motor Check for correct wire size. Replace undersize wire. Check line voltage, contact power company if voltage is incorrect
Defective fuse box or incorrect fuses Inspect fuse box wiring and correct. Install the proper fuses
Defective pressure switch Replace pressure switch or clean contacts
Control box malfunction See control box checking and repairing procedures. Replace defective components
Defective drop cable insulation Check drop cable insulation resistance. Pump must be pulled to replace defective cable
Motor malfunction Check motor winding resistance. Pump must be pulled to replace defective motor
Pump malfunction If all above checks are good, then pump is probably bound. Pump must be pulled. Check for sand or pump shaft misalignment. Correct well condition if sand is the problem
MOTOR WON'T START, FUSES BLOW
No power to start motor Check voltage at line side of fuse box. Contact power company if no power is reaching box. Check voltage at load side of fuse box and at other control devices in circuit. Make necessary corrections
Defective drop cable or motor Check motor winding resistance. Pump must be pulled to replace defective cable or motor
MOTOR RUNS, BUT DELIVERS LITTLE OR NO WATER
Air locked pump Normal delivery may resume if water pump is started and stopped at one minute intervals
Gas or air in well water Connect hose to service valve. Run water thru hose submerged in water in clear jar. Observe for air bubbles from hose outlet. If tank is standard type, the air volume control may be defective - replace; otherwise, have well checked for proper water level as pump may be drawing air. Lower pump and/or correct well condition
Low water level in well or pumping too much from well hrottle pump with gate valve. Lower pump setting if depth of well is adequate
Defective or improperly installed check valve Pump must be raised to replace or reinstall correctly
Leak in drop pipe damaged section Raise pump, check pipe for leak and replace
Pump inlet screen blocked Raise pump and clean screen. Verify that well is clean. Reset pump at less depth if possible
Worn pump Pull pump and replace damaged components
Broken pump shaft or motor shaft or worn coupling Pull pump, inspect shafts and coupling for damage. Replace defective components
PUMP OPERATES PROPERLY, BUT WON'T SHUT OFF
Pressure switch Readjust switch to lower shut off pressure setting, clean contacts or replace switch

Low water level

Throttle pump outlet at gate valve or readjust pressure switch to lower shutoff pressure setting

Leak in drop pipe or worn pump

Throttle pump output at gate valve or readjust pressure switch to lower shut off pressure setting. If pump does not shut off, pump must be raised and defect repaired

PUMP STARTS TOO OFTEN

Pressure switch

Readjust switch to wider operating pressure limits; replace defective switch

Air volume in tank incorrect

Check pressure in tank. Set at 2 lbs. below turn on pressure of the pressure switch. i.e. 30/50 pressure switch should have tank pressure of 28 lbs.

Check valve defect or leak in drop pipe

Throttle pump output at gate valve. If pump does not shut off, pump must be raised and defect repaired

 

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