red lion RL-SP25T Manual Del Propietário página 8

MAINTENANCE
Troubleshooting
Troubleshooting
Problem
Pump not connected to electrical power
Circuit breaker off or fuse removed
Accumulation of trash on float
Pump does not
turn on
Float obstruction
Defective switch
Defective motor
Float or float rod obstruction
Pump is air locked
Pump will not
shut off
Liquid inflow matches pump capacity
Defective switch
Check valve installed backwards
Pump runs but
Check valve stuck or plugged
does not dis-
Lift too high for pump
charge liquid
Inlet to impeller plugged
Pump is air locked
Lift too high for pump
Pump does not
Low voltage, speed too slow
deliver rated
Impeller or discharge pipe is clogged
capacity
Impeller wear due to abrasives
No check valve in long discharge pipe allowing liquid to
drain back into basin
Pump cycles con-
tinuously Check valve leaking
Basin too small for inflow
Water sprays out There should be a bleed hole in the discharge pipe that
of a hole in the allows trapped air to escape the pump, preventing air
discharge pipe lock. Water spraying out of this hole is completely normal
Obstructed pump impeller
Switch stuck in the ON position
Pump running dry
Pump air-locked
Pump short cycling
Protector trip-
Excessively high or low voltage supply
ping (motor
Inadequate wiring
overloading/
overheating)
Incorrect motor connections
Misapplication of the product
Operating the pump at low heads (low discharge restric-
tion)
Pump, motor, bearings, or seal have reached the end of
their useful life
Replacement Parts
Tethered Float Switch, Piggyback, 10 ft (3 m)
Tethered Float Switch, Piggyback, 20 ft (6.1 m)
RL-SC-RVS Vertical Float Switch, Piggyback, 10 ft (3 m)
For technical assistance, parts, or repair, please contact:
888.885.9254 | redlionproducts.com
998491 Rev. 004 01/23
Probable Causes
Item
Corrective Action
Connect pump to a dedicated circuit equipped with GFCI.
Turn on circuit breaker or replace fuse.
Clean float.
Check float path and provide clearance.
Replace switch.
Replace pump.
Check float and float rod path and provide clearance.
Remove pump and clean air bleed hole.
Larger pump required.
Replace switch.
Check flow-indicating arrow on check valve body to
ensure proper installation.
Remove check valve and inspect for proper operation.
Check rated pump performance.
Pull pump and clean.
Remove pump and clean air bleed hole.
Check rated pump performance.
Check that supply voltage matches the nameplate rating.
Pull pump and clean. Check pipe for scale or corrosion.
Replace pump.
Install a check valve for correct operation.
Inspect check valve for correct operation.
Install larger basin.
No corrective action is required.
Pull pump and clean.
Clean float path and provide clearance.
Ensure the pump has an adequate inflow supply.
Shut power off for approximately 1 minute, then restart.
Repeat several times to clear air from pump.
Inspect check valve for proper installation and operation.
Refer to "Specifications" on page
Refer to "Electrical Connections" on page
Inspect fixtures, inlets, and outlets for leaks. Repair and
correct application as needed.
Confirm pump performance and recheck sizing calcula-
tions.
Replace pump.
Order Number
640171
640172
14942758
Copyright © 2023, Franklin Electric, Co., Inc. All rights reserved.
1.
6.