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Aprilaire 440 humidifier Parts

Here are the diagrams and repair parts for Aprilaire 440 humidifier, as well as links to manuals and error code tables, if available.

Aprilaire 440 humidifier
By Schematic
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This is the number corresponding to the part on the diagram / schematic

Browse Parts for440 Humidifier

  • Compression Fitting And Strainer (6) for Aprilaire 440 - Part 4003

    Model 440 diagram

    Compression Fitting And Strainer (6)

    Part #4003

    The manufacturer no longer makes this part, and there's no substitute part

  • Strainer For Bullet Shaped Solenoid Valve for Aprilaire 440 - Part 4103

    #NI

    All parts diagram

    Strainer For Bullet Shaped Solenoid Valve

    Part #4103

    The manufacturer no longer makes this part, and there's no substitute part

  • Knob for Aprilaire 440 - Part 4166

    Model 440 diagram

    Knob

    Part #4166

    The manufacturer no longer makes this part, and there's no substitute part

  • Clip And Screw Set for Aprilaire 440 - Part 4086

    Model 440 diagram

    Clip And Screw Set

    Part #4086

    The manufacturer no longer makes this part, and there's no substitute part

  • Lower Housing for Aprilaire 440 - Part 4163

    Model 440 diagram

    Lower Housing

    Part #4163

    The manufacturer no longer makes this part, and there's no substitute part

  • Humidistat Adapter Plate for Aprilaire 440 - Part 4039

    #NI

    All parts diagram

    Humidistat Adapter Plate

    Part #4039

    The manufacturer no longer makes this part, and there's no substitute part

  • Orifice (blue) (144/ctn. 12-12pks.) for Aprilaire 440 - Part 4232

    Model 440 diagram

    Orifice (blue) (144/ctn. 12-12pks.)

    Part #4232

    The manufacturer no longer makes this part, and there's no substitute part

  • Cover-top for Aprilaire 440 - Part 4162

    Model 440 diagram

    Cover-top

    Part #4162

    The manufacturer no longer makes this part, and there's no substitute part

  • Tube for Aprilaire 440 - Part 4079

    Model 440 diagram

    Tube

    Part #4079

    The manufacturer no longer makes this part, and there's no substitute part

  • Tube-drain for Aprilaire 440 - Part 4047

    #NI

    All parts diagram

    Tube-drain

    Part #4047

    The manufacturer no longer makes this part, and there's no substitute part

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