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Hayward Universal H-Series H150FDN to H500FDN Low NOx Heater Replacement Parts Diagram

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42 parts · 1 with cheaper aftermarket options. Tap a number on the diagram, or search by part number.

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    • Not sold online Hayward jacket top and flue cover, H150FD — 150K BTU: FDXLJKT1151; 200K BTU: FDXLJKT1201; 250K BTU: FDXLJKT1251; 300K BTU: FDXLJKT1301; 350K BTU: FDXLJKT1351; 400K BTU: FDXLJKT1401; 500K BTU: FDXLJKT1501 FDXLJKT1151 / FDXLJKT1201 / FDXLJKT1251 / FDXLJKT1301 / FDXLJKT1351 / FDXLJKT1401 / FDXLJKT1501Call us and we'll get it for you.
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    • Not sold online Hayward top/flue cover, H150FD — 150K BTU: FDXLTFC1150; 200K BTU: FDXLTFC1200; 250K BTU: FDXLTFC1250; 300K BTU: FDXLTFC1300; 350K BTU: FDXLTFC1350; 400K BTU: FDXLTFC1400; 500K BTU: FDXLTFC1500 FDXLTFC1150 / FDXLTFC1200 / FDXLTFC1250 / FDXLTFC1300 / FDXLTFC1350 / FDXLTFC1400 / FDXLTFC1500Call us and we'll get it for you.
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    • Not sold online Hayward front access door assembly, H150FD — 150K BTU: FDXLFAD1151; 200K BTU: FDXLFAD1201; 250K BTU: FDXLFAD1251; 300K BTU: FDXLFAD1301; 350K BTU: FDXLFAD1351; 400K BTU: FDXLFAD1401; 500K BTU: FDXLFAD1500 FDXLFAD1151 / FDXLFAD1201 / FDXLFAD1251 / FDXLFAD1301 / FDXLFAD1351 / FDXLFAD1401 / FDXLFAD1500Call us and we'll get it for you.
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    • Not sold online Hayward rear access door assembly, H150FD — 150K BTU: FDXLRAD1150; 200K BTU: FDXLRAD1200; 250K BTU: FDXLRAD1250; 300K BTU: FDXLRAD1300; 350K BTU: FDXLRAD1350; 400K BTU: FDXLRAD1400; 500K BTU: FDXLRAD1500 FDXLRAD1150 / FDXLRAD1200 / FDXLRAD1250 / FDXLRAD1300 / FDXLRAD1350 / FDXLRAD1400 / FDXLRAD1500Call us and we'll get it for you.
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    • Not sold online Hayward top and front panel, H150FD — 150K BTU: FDXLTFP1151; 200K BTU: FDXLTFP1201; 250K BTU: FDXLTFP1251; 300K BTU: FDXLTFP1301; 350K BTU: FDXLTFP1351; 400K BTU: ?; 500K BTU: FDXLTFP1500 FDXLTFP1151 / FDXLTFP1201 / FDXLTFP1251 / FDXLTFP1301 / FDXLTFP1351 / FDXLTFP1500Call us and we'll get it for you.
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    • Not sold online Hayward end cap kit (upper end cap alone: FDXLUEC1930) FDXLBEC1930Call us and we'll get it for you.
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    • Not sold online Hayward trim panel kit (left trim panel kit: FDXLLTP1930) FDXLBTP1930Call us and we'll get it for you.
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    • Not sold online Hayward polymer junction box cover, left and right FDXLPLC1930Call us and we'll get it for you.
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    • Not sold online Hayward base leg, FD (4 needed) FDXLPBL1930Call us and we'll get it for you.
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    • Not sold online Hayward flue collector side panel with high limit FDXLFCS1931Call us and we'll get it for you.
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    • Not sold online Hayward rain guard assembly, H150FD — 150K BTU: FDXLRGK1151; 200K BTU: FDXLRGK1201; 250K BTU: FDXLRGK1251; 300K BTU: FDXLRGK1301; 350K BTU: FDXLRGK1351; 400K BTU: FDXLRGK1401; 500K BTU: FDXLRGK1500 FDXLRGK1151 / FDXLRGK1201 / FDXLRGK1251 / FDXLRGK1301 / FDXLRGK1351 / FDXLRGK1401 / FDXLRGK1500Call us and we'll get it for you.
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    • Not sold online Hayward heat barrier panel, H150FD — 150K BTU: FDXLHBP1150; 200K BTU: FDXLHBP1200; 250K BTU: FDXLHBP1250; 300K BTU: FDXLHBP1300; 350K BTU: FDXLHBP1350; 400K BTU: FDXLHBP1400; 500K BTU: FDXLHBP1500 FDXLHBP1150 / FDXLHBP1200 / FDXLHBP1250 / FDXLHBP1300 / FDXLHBP1350 / FDXLHBP1400 / FDXLHBP1500Call us and we'll get it for you.
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    • Not sold online Hayward blower inlet baffle, H150FD — 150K BTU: FDXLBBN1150; 200K BTU: FDXLBBN1200; 250K BTU: FDXLBBN1250; 300K BTU: FDXLBBN1300; 350K BTU: FDXLBBN1350; 400K BTU: FDXLBBN1400; 500K BTU: FDXLBBN1500 FDXLBBN1150 / FDXLBBN1200 / FDXLBBN1250 / FDXLBBN1300 / FDXLBBN1350 / FDXLBBN1400 / FDXLBBN1500Call us and we'll get it for you.
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    • Not sold online Hayward ignitor access cover FDXLIAC1930Call us and we'll get it for you.
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  15. Model
    • Not sold online Hayward burner orifice kit, natural gas, FD — 150K BTU: FDXLBON1930; 200K BTU: FDXLBON1930; 250K BTU: FDXLBON1930; 300K BTU: FDXLBON1930; 350K BTU: FDXLBON1930; 400K BTU: FDXLBON1930; 500K BTU: FDXLBON1500 FDXLBON1930 / FDXLBON1500Call us and we'll get it for you.
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    • Not sold online Hayward gas conversion kit, natural to propane, H150FD — 150K BTU: FDXLGCK1150NP; 200K BTU: FDXLGCK1200NP; 250K BTU: FDXLGCK1250NP; 300K BTU: FDXLGCK1300NP; 350K BTU: FDXLGCK1350NP; 400K BTU: FDXLGCK1400NP; 500K BTU: FDXLGCK1500NP FDXLGCK1150NP / FDXLGCK1200NP / FDXLGCK1250NP / FDXLGCK1300NP / FDXLGCK1350NP / FDXLGCK1400NP / FDXLGCK1500NPCall us and we'll get it for you.
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  18. Model
  25. Made
  26. Color
  28. Made
    • Not sold online Hayward gasket, bezel/top, FD FDXLGSK1932Call us and we'll get it for you.
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    • Not sold online Hayward gasket, combustion chamber front/air box, FD FDXLGSK1934Call us and we'll get it for you.
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  31. Model
      • Not sold online Hayward header hardware kit FDXLHDW1930Call us and we'll get it for you.
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      • Not sold online Hayward header mounting base kit FDXLHMB1930Call us and we'll get it for you.
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      • Not sold online Hayward 3/4" NPT brass plug and plastic plug CHXPLG1930Call us and we'll get it for you.
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      • Not sold online Hayward return manifold replacement kit FDXLPRM1930Call us and we'll get it for you.
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      • Not sold online Hayward keypad cover kit FDXLKPC1930Call us and we'll get it for you.
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    Don't see your part? Ask us and we'll find it.

    Also fits your Hayward Universal H-Series H150FDN to H500FDN Low NOx Heater

    Not shown on the diagram, but made for this pump.

    Fit guide

    Which part fits your H150FDN heater?

    Hayward uses one parts list for the Universal H-Series Low NOx FD heaters, H150FD to H500FD. Cabinet panels, the heat exchanger and some gas parts change with the heater size. Part numbers come from Hayward's Universal H-Series Low NOx replacement parts list.

    Heat exchanger by heater size

    Gas valve, orifices & blower

    Gas valve, natural gas H150FD to H400FD
    FDXLGSV0001
    Gas valve, natural gas H500FD only
    FDXLGSV1500N
    Burner orifice kit, natural gas H150FD to H400FD / H500FD
    FDXLBON1930 / FDXLBON1500
    Combustion blower H150FD to H400FD
    FDXLBWR1930
    Combustion blower H500FD only
    FDXLBWR1500
    Propane gas valve H150FD to H400FD / H500FD
    FDXLGSV0002 / FDXLGSV1500P

    Made before 2020?

    Water pressure switch 2020 and newer
    FDXLWPS1931
    Water pressure switch before 2020
    FDXLWPS1930
    Thermistor 2020 and newer
    FDXLTER1931
    Thermistor before 2020
    FDXLTER1930

    Older H-Series heaters

    H-Series Low NOx induced draft (ID)

    • Older heater with a separate Hayward parts list
    • Parts start with HAX or IDXL, for example heat exchangers HAXHXA1153 to HAXHXA1403
    • FD parts on this diagram do not fit

    Universal H-Series FD (this diagram)

    • Model ends in FD, FDN or FDP
    • Parts start with FDXL
    • Front access door assemblies are for heaters made after 7/13; top and front panels for heaters made after 11/20/14

    For an FD heater with the older control bezel, Hayward lists a control panel and bezel kit (old to new) for each size; for the H150FD it is FDXLBCP1150.