Pressure Switch

how can I tell if my pressure switch is faulty?

I bought a new jet pump. Has a new pressure switch attached. When it was hooked up the pump never stopped. Tried adjusting the switch as per the instructions but nothing happened. Have to turn the pump off every time we are finished using water. The foot valve seems okay as it is not losing pressure.
Any help would be appreciated.

the only way to tell is to turn the pressure switch all the way down and see if it makes the pump shut off if not then the witch is bad switches for those pumps are only 20 bucks but if its a new pump they should replace it. also did you check the plastic line that goes inside of the switch? if that is clogged or kinked it wont allow it to push up on the diaphragm breaking the points to shut it off.

Discover Pressure Switch On eBay Below:

DWYER MERCOID CONTROL DA34 2 7 BOURDON TUBE PRESSURE SWITCH 5 150PSIG NIB H16
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UEDA TOKYO MITAKA PS 102 A NEW PRESSURE SWITCH PS102A
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ANTUNES CONTROLS HIGH PRESSURE SWITCH HGP A M1 NEW SURPLUS HGPAM1
ANTUNES CONTROLS HIGH PRESSURE SWITCH HGP A M1 NEW SURPLUS HGPAM1
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Mars2 33929 Low Pressure Switch NEW
Mars2 33929 Low Pressure Switch NEW
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Barksdale D1H H18 FM Pressure or Vacuum Actuated Switch
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ASCO TRI POINT RF10A11 PRESSURE SWITCH PRESSOSTAT
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NEW Partners Choice REPL Switch Pressure 632444R FREE SHIPPING
NEW Partners Choice REPL Switch Pressure 632444R FREE SHIPPING
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Huba Control Pressure Switch 60499118
Huba Control Pressure Switch 60499118
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Part K41 Pressure Switch 111210
Part K41 Pressure Switch 111210
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30 day WARRANTY Solon 7PS2PW Pressure Switch
30 day WARRANTY Solon 7PS2PW Pressure Switch
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USSP SMC ISE2 01 55L PRESSURE SWITCH
USSP SMC ISE2 01 55L PRESSURE SWITCH
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Gems PS75 Pressure Switch ADJ 150 650R 20917 4 11114
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MERCOID PRESSURE SWITCH DA 7021 153 5S 101819
MERCOID PRESSURE SWITCH DA 7021 153 5S 101819
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NEW OLD STOCK CLEVELAND CONTROLS ADJUSTABLE AIR PRESSURE SENSING SWITCH AFS 222
NEW OLD STOCK CLEVELAND CONTROLS ADJUSTABLE AIR PRESSURE SENSING SWITCH AFS 222
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UNITED ELECTRIC FLAME PROOF PRESSURE SWITCH TYPE H119A MODEL 473
UNITED ELECTRIC FLAME PROOF PRESSURE SWITCH TYPE H119A MODEL 473
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Festo Electric Changeover Pressure Switch PEV 1 4 B Used 10361
Festo Electric Changeover Pressure Switch PEV 1 4 B Used 10361
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Festo Electric Changeover Pressure Switch PEV 1 4 B Used 54710
Festo Electric Changeover Pressure Switch PEV 1 4 B Used 54710
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Festo Pressure Switch 185421 LN43 Model PEV 1 4 B M12 SA
Festo Pressure Switch 185421 LN43 Model PEV 1 4 B M12 SA
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NEW STATIC O RING 54SC B118 M4 C1AX PRESSURE SWITCH 54SCB118M4C1AX
NEW STATIC O RING 54SC B118 M4 C1AX PRESSURE SWITCH 54SCB118M4C1AX
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Nason NS 1C 60G Air Pressure Transducer Switch 1 4 NPT SPDT 10A Contact NWOB
Nason NS 1C 60G Air Pressure Transducer Switch 1 4 NPT SPDT 10A Contact NWOB
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SMC ZSE1 T1 55L Vacuum Pressure Switch FREE SHIPPING
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New Square D 9013FRG22J36 Pumptrol Pressure Switch Ser A
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United Electric J21K 12878 Pressure Switch J21K12878
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BARKSDALE C9622 3 PRESSURE ACTUATED SWITCH USNT
BARKSDALE C9622 3 PRESSURE ACTUATED SWITCH USNT
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Oil Pressure Sender Sensor Switch AR27977 AT8517 for John Deere
Oil Pressure Sender Sensor Switch AR27977 AT8517 for John Deere
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Custom Control Sensors 646GZEM3 7011 Dual Snap Pressure Temperature Switch
Custom Control Sensors 646GZEM3 7011 Dual Snap Pressure Temperature Switch
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CARRIER HK 02ZB 038 PRESSURE SWITCH 7psi OPEN 22psi CLOSE 50 LEADS
CARRIER HK 02ZB 038 PRESSURE SWITCH 7psi OPEN 22psi CLOSE 50 LEADS
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DELAVAL BARKSDALE D2X H18 UL 4 18 PSI Explosion Proof PRESSURE SWITCH
DELAVAL BARKSDALE D2X H18 UL 4 18 PSI Explosion Proof PRESSURE SWITCH
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Allen Bradley 836T T351JX23X9 Pressure Switch 836TT351JX23X9
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ASCO SC41B SWITCH UNIT  TRANSDUCER COMBO for 2 STAGE DUAL ADJ PRESSURE SWITCH
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NEW UNITED ELECTRIC H122 553 PRESSURE SWITCH H122553
NEW UNITED ELECTRIC H122 553 PRESSURE SWITCH H122553
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SMC IS3000 N02L5 24 VDC 01 A PRESSURE SWITCH
SMC IS3000 N02L5 24 VDC 01 A PRESSURE SWITCH
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SQUARE D GAW 25 MACHINE TOOL PRESSURE SWITCH 750 PSIG decreasing NEW SURPLUS
SQUARE D GAW 25 MACHINE TOOL PRESSURE SWITCH 750 PSIG decreasing NEW SURPLUS
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NEW PENN HK06CA402 PRESSURE SWITCH P74DA 18
NEW PENN HK06CA402 PRESSURE SWITCH P74DA 18
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DWYER PHOTOHELIC 3000 A3100 0 100 PRESSURE SWITCH GAGE 0 100IN USED V11 5
DWYER PHOTOHELIC 3000 A3100 0 100 PRESSURE SWITCH GAGE 0 100IN USED V11 5
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DWYER 3001 PHOTOHELIC PRESSURE SWITCH GAGE  FACTORY SEALED
DWYER 3001 PHOTOHELIC PRESSURE SWITCH GAGE FACTORY SEALED
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