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DS3 Datasheet(PDF) 11 Page - Pentair plc. All rights reserved.

Part No. DS3
Description  Self-Priming Centrifugal Pump
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Maker  PENTAIR [Pentair plc. All rights reserved.]
Homepage  https://www.pentair.com/
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 11 page
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Troubleshooting
11
SYMPTOM
POSSIBLE CAUSE(S)
CORRECTIVE ACTION
Motor will not run
Disconnect switch is off
Be sure switch is on
Fuse is blown
Replace fuse
Starting switch is defective
Replace starting switch
Wires at motor are loose,
Refer to instructions on wiring. Check and tighten all wiring.
disconnected, or wired incorrectly
Capacitor voltage may be hazardous. To discharge
capacitor, hold insulated handle screwdriver BY THE HANDLE and
short capacitor terminals together. Do not touch metal screwdriver
blade or capacitor terminals. If in doubt, consult a qualified
electrician.
Motor runs hot and
Motor is wired incorrectly
Refer to instructions on wiring
overload kicks off
Voltage is too low
Check with power company. Install heavier wiring if wire size is too small
(See Electrical, Page 6)
Motor runs but no
*Pump in new installation did
In new installation:
water is delivered
not pick up prime through:
1. Improper priming
1. Re-prime according to instructions
2. Air leaks
2. Check all connections on suction line
3. Leaking foot valve
3. Replace foot valve
*Pump has lost prime through:
In installation already in use:
1. Air leaks
1. Check all connections on suction line and shaft seal
2. Water level below suction of pump
2. Lower suction line into water and re-prime. If receding water level
in well exceeds suction lift, a deep well pump is needed
Impeller is plugged
Clean impeller; see Maintenance
Check valve or foot valve is stuck
Replace check valve or foot valve
in closed position
Pipes are frozen
Thaw pipes. Bury pipes below frost line. Heat pit or pump house.
Foot valve and/or strainer are
Raise foot valve and/or strainer above well bottom
buried in sand or mud
Pump does not
Water level in well is lower than
A deep well jet pump may be needed (over 20 ft. to water)
deliver water to full estimated
capacity (Also
Steel piping (if used) is corroded or
Replace with plastic pipe where possible, otherwise with new steel pipe
check point 3
limed, causing excess friction
immediately above) Offset piping is too small in size
Use larger offset piping
*(Notice: Check
prime before
looking for other
causes. Unscrew
priming plug and
see if there is
water in priming
hole.)




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