Troubleshooting; Troubleshooting Chart - RIDGID SP-330 Manual Del Operador

SP-330, SP-330D, SP-500, SP-500A Submersible Sump Pumps

Troubleshooting

WARNING
!
Let the pump cool for a minimum of two hours before servicing because the pump contains hot oil under
pressure. Disconnect pump from power source before servicing.

TROUBLESHOOTING CHART

Symptom
Pump will not start or run
Pumps start and stops too
often
Pump will not shut off or
thermal protector turns off
Pump operates but delivers
little or no water
4
5
6
Figure
Description
1
Float Kit
2
Switch/Top Assembly
2a
Top Assembly/diaphragm
2b
Alarm top assembly/switch
3
Stator
4
Lower Bracket/Rotor
5
Cast Iron Impeller
6
Cast Iron Volute
Possible Cause(s)
1. Blown fuse or breaker
2. Low line voltage
3. Worn motor
4. Worn switch
5. Impeller not rotating
6. Float obstruction
1. Backflow of water from
piping
2. Defective switch
1. Defective switch
2. Obstacle in piping
3. Float obstructed
1. Low line voltage
2. Plugged impeller
3
RIDGID cat. #
SP330
88557
88562
N/A
N/A
88577
88587
88597
88602
Ridge Tool Company
Corrective Action
1. If blown, replace with proper sized fuse or reset
breaker.
2. If voltage is under 108 volts, check wiring size.
3. Replace motor or pump.
4. Replace switch.
5. If impeller will not turn, remove housing and
remove blockage.
6. Make sure float moves freely up and down.
1. Install or replace check valve.
2. Replace switch.
1. Replace switch.
2. Remove pump and clean pump and piping.
3. Make sure float moves freely up and down.
1. If voltage is under 108 volts, check wiring size.
2. Clean out impeller.
2b
2a
RIDGID cat. # RIDGID cat. #
SP330D SP500
N/A 88557
N/A 88562
88567 N/A
N/A N/A
88577 88582
88587 88592
88597 88597
90382 88602
2
1
RIDGID cat. #
SP500A
88557
N/A
N/A
88572
88582
88592
88597
88602
7