red lion RL-SPBS Owner's Manual page 14

Troubleshooting
PROBLEM
Pump does not turn on or off.
Pump does not deliver rated capacity.
Pump cycles continually.
Pump will not shut off.
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 off tube with thumb, plug into
wall outlet. If pump works, proceed to
check switch; if not, fault is in pump or
power supply.
Pump runs but does not discharge liquid.
14
TROUBLESHOOTING INFORMATION
PROBABLE CAUSES
Bad connection.
Blown fuse.
Bad battery.
Pump impeller obstructed.
Pump control switch.
Low battery.
Check valve installed backwards.
Low voltage, speed to slow.
Impeller or discharge pipe is clogged.
No check valve in long discharge pipe
allowing liquid to drain back into sump.
Check valve leaking.
Sump pit too small for inflow.
Defective battery.
Pump control switch.
Plugged vent tube.
Dirt or sediment lodged between retainer
ring and rubber diaphragm causing
contacts to remain closed.
Pump is air locked.
Liquid inflow matches pump capacity.
Check valve installed backwards.
Check valve stuck or plugged
Lift too high for pump.
Inlet to impeller plugged.
Pump is air locked.
115 V 12 V
x x Plug in pump.
x Turn on circuit breaker or replace fuse.
x Replace battery.
x x Pull pump and clean.
x x Replace switch.
x When power is restored, the charger will charge the battery.
x x Check flow indication arrow on check valve body to ensure it is installed properly.
x x Check for proper supply voltage to make certain it corresponds to name plate voltage.
x x Pull pump and clean. Check pipe for scale or corrosion.
x x Install a check valve in discharge line.
x x Inspect check valve for correct operation.
x x Install larger sump pit.
x Replace battery.
x x Replace switch.
x Clear vent tube of any obstruction.
x Clean area around rubber diaphragm.
Shut power off for approximately 1 minute, then restart. Repeat several times to clear air from pump. If
x x system includes a check valve, a 3/16" hole should be drilled in the discharge pipe between the pump
discharge and the check valve.
x x Larger pump required.
x x Check flow indicating arrow on check valve body to ensure it is installed properly.
x x Remove check valve and inspect for proper operation.
x x Check pump performance as compared to the vertical distance needed to evacuate the sump water.
x x Pull pump and clean.
Shut power off for approximately 1 minute, then restart. Repeat several times to clear air from pump. If
x x system includes a check valve, a 3/16" hole should be drilled in the discharge pipe between the pump
discharge and the check valve.
CORRECTIVE ACTION