Star 4H05A05001 Manual Del Usuario página 28

TROUBLESHOOTING
Problem
Motor runs, but
delivers little or no
water
Pump operates
properly, but won't
shut off
Possible Cause
1. Air locked pump
2. Gas or air in well water
3. Low water level in well or pumping too
much from well
4. Defective or improperly installed check
valve
5. Leak in drop pipe damaged section
6. Pump inlet screen blocked
7. Worn pump
8. Broken pump shaft or motor shaft or
worn coupling
1. Pressure switch
2. Low water level
3. Leak in drop pipe or worn pump
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Corrective Action
1. Normal delivery may resume
if water pump is started and
stopped at one minute intervals
2. 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
3. Throttle pump with gate valve.
Lower pump setting if depth of
well is adequate
4. Pump must be raised to replace
or reinstall correctly
5. Raise pump, check pipe for leak
and replace
6. Raise pump and clean screen.
Verify that well is clean. Reset
pump at less depth if possible
7. Pull pump and replace damaged
components
8. Pull pump, inspect shafts and
coupling for damage. Replace
defective components
1. Readjust switch to lower shut off
pressure setting, clean contacts
or replace switch
2. Throttle pump outlet at gate
valve or readjust pressure switch
to lower shutoff pressure setting
3. 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
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