Loading ...
Loading ...
Loading ...
Troubleshooting
21
TROUBLESHOOTING INFORMATION
PROBLEM PROBABLE CAUSES 115 V 12 V CORRECTIVE ACTION
Pump does not turn on or turn o.
Bad connection X X Plug-in pump
Blown fuse X Turn on circuit breaker or replace fuse
Bad battery X Replace battery
Pump impeller obstructed X X Pull pump and clean
Pump control switch X X Replace switch
Pump does not deliver
rated capacity.
Low battery X
When power is restored, the charger will
charge the battery
Check valve installed backwards X X
Check ow indication arrow on check valve
body to ensure it is installed properly
Low voltage, speed too slow X X
Check for proper supply voltage to make
certain it corresponds to name plate voltage.
Impeller or discharge pipe is clogged X X
Pull pump and clean. Check pipe for scale or
corrosion
Pump cycles continually.
Defective battery X Replace battery
No check valve in long discharge pipe
allowing liquid to drain back into sump.
X X Install a check valve in discharge line
Check valve leaking X X Inspect check valve for correct operation
Sump pit too small for inow X X Install larger sump pit
Pump will not shut o.
NOTE: Before troubleshooting
automatic control, check to see that
pump operates on manual control.
To do this, create slight vacuum on
breather tube (near plug), then close
o tube with thumb, plug into wall
outlet. If pump works, proceed to
check switch; if not, fault is in pump
or power supply.
Pump control switch X X Replace switch
Plugged vent tube X Clear vent tube of any obstruction
Dirt or sediment lodged between
retainer ring and rubber diaphragm
causing contacts to remain closed
X Clean area around rubber diaphragm
Pump is air locked X X
Shut power o for approximately 1 minute,
then restart. Repeat several times to clear
air from pump. If system includes a check
valve, a 3/16" hole should be drilled in the
discharge pipe between the pump discharge
and the check valve.
Liquid inow matches pump capacity X X Larger pump required
Pump runs but does not
discharge liquid.
Check valve installed backwards X X
Check ow indicating arrow on check valve
body to ensure it is installed properly.
Check valve stuck or plugged X X
Remove check valve and inspect for proper
operation
Lift too high for pump X X
Check pump performance as compared to
the vertical distance needed to evacuate the
sump water
Inlet to impeller plugged X X Pull pump and clean
Pump is air locked X X
Shut power o for approximately 1 minute,
then restart. Repeat several times to clear
air from pump. If system includes a check
valve, a 3/16" hole should be drilled in the
discharge pipe between the pump discharge
and the check valve.
Loading ...
Loading ...
Loading ...