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PROBLEM
Pump not plugged in.
Circuit breaker shut 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.
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 basin.
Pump cycles continually.
Check valve leaking.
Basin too small for inflow.
ITEM
PART NO.
NO.
1
109440202 Screen Base
2
109460
3
909023
4
950481
5
950482
6
928008
7
901203
8
909022
9
950227
10
951660
10
951661
11
927427
12
901424
13**
951798
14**
951799
15**
950502
16**
950400
** Items not shown
TROUBLESHOOTING
PROBABLE CAUSES
REPLACEMENT PARTS LIST
DESCRIPTION
Gasket, Screen Base
Screw/Washer, 10-24 x 7/8"
Capacitor, 10MFD, 370V
Capacitor Bracket
Seal Ring, 4.718 ID x .078 Wall
Screw, Machine, #6-32 x 1/4"
Screw/Washer, 10-24 x 5/8"
Switch Assy, Non Mercury,Automatic
Wire Harness Assy, Automatic
Wire Harness Assy, Manual
Loop Clamp, Black
Screw, Machine, #8-32 x 1/2"
Lead Wire Assembly,White
Lead Wire Assembly,Red
Capacitor Insulating Boot
Closed End Connector
Plug in pump.
Turn on circuit breaker or replace fuse.
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 w/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.
(See corrective action above.)
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.
CATALOG NO./
MODEL NO.
•
•
5
•
•
•
•
4
•
•
•
•
•
CORRECTIVE ACTION
•
•
5
•
•
•
•
4
•
•
•
•
•
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3
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