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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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Browse Parts for 440 Humidifier

  • Transformer for Aprilaire 440 - Part 4010

    Model 440 diagram

    Transformer

    Part #4010

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

  • Wick Pad for Aprilaire 440 - Part 12

    Model 440 diagram

    Wick Pad

    Part #12

    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

  • 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

  • Scale Control Insert (12) for Aprilaire 440 - Part 4080

    Model 440 diagram

    Scale Control Insert (12)

    Part #4080

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

  • Humidistat for Aprilaire 440 - Part 4016

    Model 440 diagram

    Humidistat

    Part #4016

    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

  • Valve Sadd for Aprilaire 440 - Part 4001

    Model 440 diagram

    Valve Sadd

    Part #4001

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

  • Valve for Aprilaire 440 - Part 4040

    Model 440 diagram

    Valve

    Part #4040

    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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