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E-03-577 (01-23-20)

Pump Troubleshooting

Below is a list of common problems and the probable causes:
Pump will not start.
1.  No power to the motor. Check for blown fuse or open circuit 

breaker.

2.  Selector switch may be in the Off position.

3.  Control circuit transformer fuse may be blown.

4.  Overload heater on starter may be tripped. Push to reset.

Pump will not start and overload heaters trip.

1.  Turn off power and check motor leads with Megger or 

ohmmeter for possible ground.

2.  Check resistance of motor windings. All 3 phases should 

show the same reading.

3.  If no grounds exist and the motor windings check OK, 

remove pump from sump and check for clogged or blocked 
impeller.

Pump operates with selector switch in Hand position but will 
not operate in Auto position.

1.  This indicates trouble in the float level control or the 

alternator relay.

2.  Check control panel for trouble.

Pump runs but will not shut off.

1.  Pump may be air locked. Turn pump off and let set for 

several minutes, then restart.

2.  Lower float control may be hung-up in the closed position. 

Check in sump to be sure control is free.

3.  Selector switch may be in the Hand position.

Pump does not deliver proper capacity.

1.  Discharge gate valve may be partially closed or partially 

clogged.

2.  Check valve may be partially clogged. Raise level up and 

down to clear.

3.  Pump may be running in wrong direction. Low speed pumps 

can operate in reverse direction without much noise or 
vibration.

4.  Discharge head may be too high. Check total head with 

gauge when pump is operating. Total head is discharge 
gauge pressure converted to feet plus vertical height from 
water level in sump to center line of pressure gauge in 
discharge line. Gauge should be installed on pump side of 
all valves. Multiply gauge pressure in pounds by 2.31 to get 
head in feet.

5.  If pump has been in service for some time and capacity falls 

off, remove pump and check for wear or clogged impeller.

Motor stops and then restarts after short period but overload 
heaters in starter do not trip.

1.  This indicates heat sensors in the motor are tripping due 

to excessive heat. Impeller may be partially clogged giving 
a sustained overload but not high enough to trip overload 
heater switch.

2.  Motor may be operating out of liquid due to a failed level 

control.

3.  Pump may be operating on a short cycle due to sump being 

too small or from water returning to sump due to a leaking 
check valve.

TROUBLESHOOTING

A

C

D

B

CHOPPER PLATE

3/8-16 BOLTS

PLATE RETAINING RING

1/2-20 BOLTS

CUTTER INSERT

IMPELLER

RECOMMENDED

MAX CUTTER GAP

.015

.010

Содержание C4S(X)P Series

Страница 1: ...03 557 01 23 20 Part 056255571 INSTALLATIONAND OPERATIONMANUAL SUBMERSIBLESOLIDSHANDLINGPUMP C4S X P H3H X P H4H X P S4M X P S4P X P S4HV X P S4MV X P Used in Hazardous Locations Class I Division I G...

Страница 2: ...ENTS SECTION PAGE General Information 3 4 Pump Installation 5 Pump Operation Maintenance 6 7 Parts List 8 Hydraulic Ends Part List 9 Motor Parts Group 10 Impeller Parts List 10 11 Wiring Diagrams 12 W...

Страница 3: ...l An improperly sized tank can cause the pump to cycle and lead to pump damage This may require a larger pressure tank than is normally used CALIFORNIA PROPOSITION 65 WARNING This product and related...

Страница 4: ...nding temperature the starter in the panel breaks power to the pump Once the sensor resets the starter is automatically reset for FM for continued operation of the pump This circuitry is supplied in a...

Страница 5: ...any other voltage TO RE WIRE THE PUMP FROM 230V TO 460V 3 PHASE Only a 230V pump from the factory is considered dual voltage a cord label clearly states the factory wound voltage 1 Remove all six 7 ca...

Страница 6: ...le motors that are out of warranty can be serviced in the field by any reliable motor service shop Any pump that is in warranty must be returned to the factory for service or repaired at an authorized...

Страница 7: ...ity 1 Discharge gate valve may be partially closed or partially clogged 2 Check valve may be partially clogged Raise level up and down to clear 3 Pump may be running in wrong direction Low speed pumps...

Страница 8: ...78190103 SEAL PLATE S4P X P H3H X P H4H X P C4S X P 1 B6 07597A017 BOLT SEAL PLATE S4M X P S4MV X P S4HV X P 4 047560061 BOLT SEAL PLATE S4P X P H3H X P H4H X P C4S X P 4 Ref No Part No Part Descripti...

Страница 9: ...21 005680021 005680021 005680191 D9 CHOPPER PLATE N A N A N A N A N A N A 153340002 D10 CHOPPER BLADE N A N A N A N A N A N A 153320002 D11 RETAINER PLATE N A N A N A N A N A N A 153330001 D12 SCREW C...

Страница 10: ...5102 H3H X P500DC 5 208 3 10 4 7 50 151465102 H3H X P500EC 5 230 3 10 4 7 50 151465102 H3H X P500FC 5 460 3 10 4 7 50 151465102 H3H X P500GC 5 575 3 10 4 7 50 151465102 H3H X P750CC 7 5 230 1 8 4 8 00...

Страница 11: ...C4S X P750DC 7 5 208 3 8 4 7 153310192 C4S X P750EC 7 5 230 3 8 4 7 153310192 C4S X P750FC 7 5 460 3 10 4 7 153310192 C4S X P750GC 7 5 575 3 10 4 7 153310192 C4S X P1000DC 10 208 3 8 4 7 153310192 C4S...

Страница 12: ...CAN ONLY BE CONNECTED TO PANEL TERMINAL BLOCKS AS SHOWN ON SCHEMATIC INCORRECT CONNECTION CAN CAUSE DAMAGE TO PUMP AND OR PANEL COMPONENTS THREE PHASE OVERLOAD RELAY MUST BE CLASS 1O TRIP AMBIENT COMP...

Страница 13: ...ll not apply a to defects or malfunctions resulting from failure to properly install operate or main tain the unit in accordance with the printed instructions provided b to failures resulting from abu...

Страница 14: ...14 E 03 577 01 23 20 NOTES...

Страница 15: ...15 E 03 577 01 23 20 NOTES...

Страница 16: ...and unregistered trademarks and logos are the property of their respective owners Because we are continuously improving our products and services Pentair reserves the right to change specifications wi...

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