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Operating Instructions and Parts Manual
Troubleshooting Chart - Back-up Pump
Symptom Possible Cause(s) Corrective Action
Pump will not 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 the operation of the
switch
4. Check internal fuse located inside the control box. Pull the
charger from the wall outlet and remove. If the fuse is blown,
replace it with a 15 amp automotive type fuse
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 and check to see if impeller is free to turn.
If impeller is locked, remove the 4 screws on the bottom of the
pump to release the housing around the impeller. 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
3. Pump not rotated 30˚
4. Pump air locked
5. Discharge pipe length and / or
height exceeds capacity of pump
6. Low or defective battery
1. Check to make sure a check valve is installed and functioning
between primary pump discharge and Standby Sump Pump
tee fi tting
2. Check for obstruction and clear if necessary
3. Check that pump is rotated 30˚ in tee fi tting
4. The impeller housing has a small hole on its side. This hole
must be open for the pump to prime. With the pump
unplugged, remove the 4 screws on the bottom of the pump to
release the housing around the impeller. Clean out the hole
and replace cover
5. If discharge is too high, a separate line may be required with a
lower discharge height
6. Check battery and replace if low or defective
Pump cycles too
frequently
1. Main check valve located between
the discharge of the primary
pump and the Back-up Sump
Pump tee fi tting or the Back-up
Sump Pump fl apper valve not
installed or working properly
1. Install check va/lve or repair as required
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