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Aprilaire 550 humidifier

Aprilaire 550 humidifier Parts

Here are the diagrams and repair parts for Aprilaire 550 humidifier, as well as links to manuals and error code tables, if available.

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Browse Parts for 550 Humidifier

  • Current Sensing Relay for Aprilaire 550 - Part 50

    #NI

    All parts diagram

    Current Sensing Relay

    Part #50

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

  • Panel for Aprilaire 550 - Part 4220

    Model 550 diagram

    Panel

    Part #4220

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

  • Valve for Aprilaire 550 - Part 4040

    Model 550 diagram

    Valve

    Part #4040

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

  • Orifice for Aprilaire 550 - Part 4231

    Model 550 diagram

    Orifice

    Part #4231

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

  • Base for Aprilaire 550 - Part 4219

    Model 550 diagram

    Base

    Part #4219

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

  • Insert for Aprilaire 550 - Part 4217

    Model 550 diagram

    Insert

    Part #4217

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

  • Cover Latch Spring for Aprilaire 550 - Part 4225

    Model 550 diagram

    Cover Latch Spring

    Part #4225

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

  • Humidistat for Aprilaire 550 - Part 4016

    Model 550 diagram

    Humidistat

    Part #4016

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

  • Humidistat Adapter Plate for Aprilaire 550 - Part 4039

    #NI

    All parts diagram

    Humidistat Adapter Plate

    Part #4039

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

  • Drain for Aprilaire 550 - Part 4223

    Model 550 diagram

    Drain

    Part #4223

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

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