Pump Performance Curves; Troubleshooting - Franklin Electric LittleGIANT 6EC-CIA-SFS Guia De Instalacion

PUMP PERFORMANCE CURVES

FLOW - LITERS/MINUTE
0 30 60 90
30
25
20
15
10
5
0
0 10 20
FLOW - GALLONS/MINUTE

TROUBLESHOOTING

Problem
Pump not plugged in.
Circuit breaker shut-off or fuse removed. Turn on circuit breaker or replace fuse.
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.
Check valve stuck or plugged.
Pump runs but does not
Lift too high for pump.
discharge liquid
Inlet to impeller plugged.
Pump is air locked.
Lift too high for pump.
Low voltage, speed too slow.
Pump does not deliver
rated capacity
Impeller or discharge pipe is clogged.
Impeller wear due to abrasives.
No check valve in long discharge pipe
allowing liquid to drain back into sump.
Pump cycles continually
Check valve leaking.
Basin too small for inflow.
10
6EC
120 150 180 210
9
6
3
0
30 40 50 60
Probable Causes
0
40
35
30
25
20
15
10
5
0
0 10
Plug in pump.
Clean float.
Check float path and provide clearance.
Have pump serviced by authorized service center.
Have pump serviced by authorized service center.
Check float and float rod path and provide clearance.
Shut power off for approximately 1 minute, then restart. Repeat several times to clear air from pump.
Larger pump required.
Disconnect switch, check ohmmeter, open-infinitive resistance, closed-zero.
Check flow-indicating arrow on check valve body to ensure it is installed properly.
Remove check valve and inspect for proper operation.
Check rating table.
Pull pump and clean.
Pull pump and clean.
Check rated pump performance.
Check for proper supply voltage to make certain it corresponds to nameplate voltage.
Pull pump and clean. Check pipe for scale or corrosion.
Replace worn impeller.
Install a check valve in discharge line.
Inspect check valve for correct operation.
Install larger basin.
10EC
FLOW - LITERS/MINUTE
50 100 150 200
20 30 40 50
FLOW - GALLONS/MINUTE
Corrective Action
250
12
10
8
6
4
2
0
60 70