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Pool Heater Pressure Switches

Whether your pool heater is Gas or Electric, you will need to have a pressure switch installed.

Commonly located on the side behind a panel ( i.e; Hayward), the pressure switch will measure the water pressure between the pool pump and the heater unit. If the pressure to the heater falls the pressure switch will send a signal to the heater control board to shut down.

The pressure will protect your investment in the pool heater by not allowing any heat to generate should a pressure failure happen. In no circumstances should a pressure switch be by-passed, doing so will have extremely dangerous consequences.

When installing the pressure switch, make sure to isolate the hearer unit from the power source and close all valves to prevent water leaking.

Always install the pressure switch with teflon tape on the thread (1 or 2 layers only) and make sure to replace the wire contacts in the identical position as per the failed unit.

Depending on make of pool heater, the following codes will signal a pressure switch failure:

  • Lo - Hayward
  • PRS - Raypak
  • Original price $35.95 CAD
    Original price $35.95 CAD - Original price $35.95 CAD
    Original price $35.95 CAD
    Current price $31.00 CAD
    $31.00 CAD - $31.00 CAD
    Current price $31.00 CAD

    TechMark pressure switch 4010P- Threaded, Adjustable, Plastic, Full Load

    Techmark
    10+ in stock

    The Tecmark pressure switch model 4010P 1/8" MPT male-part threads plastic is perfect for salt water & high moisture areas. 0.5 to 11 P.S.I. ad...

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    Original price $35.95 CAD
    Original price $35.95 CAD - Original price $35.95 CAD
    Original price $35.95 CAD
    Current price $31.00 CAD
    $31.00 CAD - $31.00 CAD
    Current price $31.00 CAD
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  • Original price $37.55 CAD - Original price $37.55 CAD
    Original price
    $37.55 CAD
    $37.55 CAD - $37.55 CAD
    Current price $37.55 CAD

    TechMark pressure switch 4028P - Threaded, Adjustable, Plastic, Full Load

    Techmark
    Out of stock

    The Tecmark pressure switch model 4028P is perfect for salt water & high moisture areas. 0.5 to 11 P.S.I. adjustable pressure detection 21 Amp ...

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    Original price $37.55 CAD - Original price $37.55 CAD
    Original price
    $37.55 CAD
    $37.55 CAD - $37.55 CAD
    Current price $37.55 CAD
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  • Original price $32.35 CAD - Original price $32.35 CAD
    Original price
    $32.35 CAD
    $32.35 CAD - $32.35 CAD
    Current price $32.35 CAD

    TECMARK Pressure Switch 4098P, SPST, 1Amp, 1-6Psi, 1/8 inch NPT, (3/8" OD), Plastic Thread

    Techmark
    Only 4 left!

    TECMARK, 4098P, SPST, 1Amp, 1-6Psi, 1/8 inch NPT, (3/8" OD), Plastic Threads for RayPak pool heaters This item is final sale

    Original price $32.35 CAD - Original price $32.35 CAD
    Original price
    $32.35 CAD
    $32.35 CAD - $32.35 CAD
    Current price $32.35 CAD

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