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Operating Instructions and Parts Manual
TROUBLESHOOTING CHART
Symptom Possible Cause(s) Corrective Action
Pump won't run 1. Connections not secure
2. Low or defective battery
3. Float switch stuck
4. Defective or blown fuse
1. Check all connections
2. Check battery and replace if low or defective
3. Make sure nothing is interfering with operation of switch
4. Check internal fuse located on the PS/BC. Pull the charger
from the wall outlet and remove. If the fuse is blown, replace
it with an automotive type fuse of the same amp ratio.
Motor hums but
pump won't run
1. Defective battery
2. Impeller is locked
1. Check battery and replace if low or defective
2. Unplug pump, volute, and check to see if impeller is free
to turn. If impeller is locked, remove the obstruction.
Reassemble pump and reconnect
Pump runs but
pumps very little
or no water
1. Check valve missing or
improperly installed
2. Obstruction in discharge pipe or
pump inlet
3. Discharge pipe length and/or
height exceeds capacity of pump
4. Low or defective battery
1. Check to make sure check valves installed between primary
pump discharge and Backup Sump Pump are functioning
properly
2. Check for obstruction and clear if necessary
3. If discharge is too high, a separate line may be required with
a lower discharge height
4. Check battery and replace if low or defective
Pump cycles too
frequently
1. Check valve problem 1. Check to make sure check valves installed between primary
pump discharge and Backup Sump Pump are functioning
properly
No yellow light 1. Battery connection problem 1. Verify battery connection is correct
Red light is on
with alarm
1. Blown pump fuse
2. Low battery voltage
1. Check fuse and replace with a fuse of same rating and size
2. Check battery voltage. PS/BC will not charge batteries with a
combined voltage of 21.6 VDC or less
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