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Flotec FP4155 - User Manual

Flotec FP4155
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OWNER’S MANUAL
Jet Pumps
NOTICE D’UTILISATION
Pompes accélératrices
MANUAL DEL USUARIO
Bombas de chorro
©2011 FP933 (4/5/11)
Deep Well Pump Models
Pompe Pour Puits Profond
Bomba De Pozo Profundo
FP4205 1/2 HP/ch
FP4207 3/4 HP/ch
FP4210 1 HP/ch
Shallow Well Pump Models
Pompe Pour Puits Peu Profond
Bomba De Pozo Poco Profundo
FP4155 1/2 HP/ch
FP4157 3/4 HP/ch
FP4150 1 HP/ch
293 Wright Street, Delavan, WI 53115
Phone: 1-800-365-6832
Fax: 1-800-526-3757
Web Site: FlotecWater.com
Installation/Operation/Parts
For further operating, installation,
or maintenance assistance:
Call 1-800-365-6832
English . . . . . . . . . . . . . Pages 2-12
Installation/Fonctionnement/
Pièces
Pour plus de renseignements
concernant l’utilisation,
l’installation ou l’entretien,
Composer le
1 (800) 365-6832
Français . . . . . . . . . . Pages 13-23
Instalación/Operación/Piezas
Para mayor información sobre el
funcionamiento, instalación o
mantenimiento de la bomba:
Llame al 1-800-365-6832
Español. . . . . . . . . . . Páginas 24-34

Table of Contents

Questions and Answers

  • S
    Steven CalderonAug 9, 2025
    Why is my Flotec FP4155 not delivering water to full capacity?
    • T
      Tyler WhiteAug 10, 2025
      If your Flotec Water Pump isn't delivering water to its full capacity, it could be due to a few reasons. The water level in the well might be lower than estimated, possibly requiring a new nozzle and venturi combination. If steel piping is used, corrosion or liming could be causing excess friction; replace it with plastic pipe where possible, or with new steel pipe. Also, ensure the piping isn't too small in size, and use larger piping if necessary.
  • K
    Kimberly GrahamAug 19, 2025
    How to troubleshoot a Flotec FP4155 Water Pump motor that will not run?
    • M
      Michelle HansenAug 19, 2025
      If your Flotec Water Pump motor won't run, start by checking if the disconnect switch is on. Ensure that the fuse hasn't blown or the circuit breaker hasn't tripped; replace the fuse or reset the breaker if necessary. A defective starting switch could also be the problem; if so, disconnect the power and replace the starting switch. Inspect the wires at the motor to ensure they are correctly connected and tightened, referring to the wiring instructions. If the pressure switch contacts are dirty, disconnect the power and file the contacts with an emery board or nail file. Remember that capacitor voltage may be hazardous; discharge the capacitor with an insulated screwdriver before working on it, or consult a qualified electrician.
  • M
    Michelle WalshAug 29, 2025
    Why am I getting air spurts from faucets with my Flotec FP4155?
    • K
      Karen ArmstrongAug 29, 2025
      If you're experiencing air spurts from the faucets with your Flotec Water Pump, it could be due to several reasons. The pump might be in the process of picking up prime; once it does, it should pump solid water without air. A leak in the suction side of the pump could be allowing air to be sucked in; check the joints for leaks using soapy water. If the well is gaseous, consult the factory about installing a sleeve in the well. Intermittent over-pumping of the well, where the water is drawn down below the foot valve, can also cause this; lower the foot valve if possible, or restrict the pump discharge.
  • Q
    qhinesSep 3, 2025
    Why does my Flotec FP4155 motor run hot and the overload kicks off?
    • A
      albertjacobsonSep 3, 2025
      If your Flotec Water Pump motor runs hot and the overload kicks off, several factors could be responsible. The motor might be wired incorrectly; refer to the wiring instructions. Low voltage can also cause this issue; check with the power company and install heavier wiring if the wire size is too small. Additionally, the pump might be cycling too frequently; refer to the section on too frequent cycling for solutions.
  • M
    Mark TuckerNov 14, 2025
    Why does my Flotec FP4155 Water Pump keep cycling on and off too frequently?
    • B
      Bonnie BrowningNov 14, 2025
      If your Flotec Water Pump cycles too frequently or doesn't shut off, several issues could be the cause. First, ensure all faucets are closed. The pressure switch might be out of adjustment or have welded contacts; in this case, disconnect power and adjust or replace the switch. A clogged venturi, nozzle, or impeller can also cause this issue, so clean these components. If you have a standard pressure tank, it might be waterlogged with no air cushion; drain the tank to the air volume control port, check the AVC for defects, and inspect all connections for air leaks. Leaking pipes or a leaking foot valve can also be culprits, so check and repair as needed. For pre-charged tanks, disconnect power, relieve pressure, and check the air pressure at the valve stem. It should be 2 PSI less than the...
  • S
    Stanley WashingtonNov 23, 2025
    What to do if my Flotec FP4155 Water Pump motor runs but no water is delivered?
    • A
      Amy HayesNov 24, 2025
      If your Flotec Water Pump motor runs but no water is delivered, consider these possibilities. If it's a new installation, the pump may not have picked up prime due to improper priming, air leaks, or a leaking foot valve or check valve. Re-prime the pump, check all connections on the suction line, AVC, and ejector for leaks using soapy water, and replace the foot valve or check valve if needed. If the pump has lost prime in an existing installation, check for air leaks on the suction line and shaft seal, and lower the suction line into the water to re-prime. Also, check if the foot valve or strainer is plugged and clean them if necessary. Clean the ejector or impeller if they are plugged. Ensure the check valve or foot valve isn't stuck shut, and replace if needed. If pipes are frozen, thaw...

Flotec FP4155 Specifications

General IconGeneral
Horsepower0.5 HP
Voltage115 V
ConstructionThermoplastic
MaterialThermoplastic
Maximum Flow Rate45 GPM
Maximum Head25 ft
Max Flow Rate45 GPM
Max Head25 ft
PhaseSingle
Pump TypeSubmersible

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