Zoeller 1450-0009 Manual Del Usuario página 22

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
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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