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Furnace Control Board

Furnace Control Board

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    Lennox Circuit Board Part #39M84

    Lennox

    MSRP: $507.69
    Now: $392.30
    Lennox® Fan Control Board # 39M84 is the current part number for Honeywell® Control Board # ST9103A1069   FurnacePartSource.com Commitment Item Typically Ships within the Same Business Day Brand-New Genuine Parts - Everytime No...
    MSRP: $507.69
    Now: $392.30
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    Lennox Defrost Board Part #17M14

    Lennox

    MSRP: $158.48
    Now: $122.46
    Lennox® Defrost Control Circuit Board  FurnacePartSource.com Commitment Item Typically Ships within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $158.48
    Now: $122.46
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    Amana/Goodman Control Board Part #B1809913S

    Amana-Goodman

    MSRP: $265.48
    Now: $205.15
    Amana/Goodman® Control Board Part #B1809913S; Hot Surface Ignition Control Board with 9-Pin Connector   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum...
    MSRP: $265.48
    Now: $205.15
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    Goodman Circuit Board Part #PCBBF112S

    Amana-Goodman

    MSRP: $149.21
    Now: $115.30
    Goodman PCBBF112S CIRCUIT BOARD   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order Requirements
    MSRP: $149.21
    Now: $115.30
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    Carrier Products Circuit Board Part# CESO110074-01

    Carrier

    MSRP: $501.20
    Now: $387.29
    Carrier® Products Circuit Board Part# CESO110074-01, aka CES0110074-01; Backed by a One Year Warranty.   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $501.20
    Now: $387.29
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    Carrier Products Circuit Board Part# CESO110063-02

    Carrier

    MSRP: $199.81
    Now: $154.40
    Carrier® Products Circuit Board Part# CESO110063-02, aka CES0110063-02; Timer/Defrost Circuit Bard; Backed by a One Year Warranty.   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts -...
    MSRP: $199.81
    Now: $154.40
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    Carrier Defrost Control Circuit Board Part# CESO110053-00

    Carrier

    MSRP: $327.85
    Now: $253.34
    Carrier Defrost Control Circuit Board Part# CESO110053-00    FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order Requirements      
    MSRP: $327.85
    Now: $253.34
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    Carrier Products Circuit Board Part# 325879-751

    Carrier

    MSRP: $878.15
    Now: $678.57
    Carrier® Products Circuit Board Part# 325879-751; Direct Cross for Obsolete Carrier # HK42FZ010; Circuit Board Plug Kit; Comes with Installation Manual; Backed by a One Year Warranty.   FurnacePartSource.com Commitment Item Typically Ships...
    MSRP: $878.15
    Now: $678.57
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    Carrier Products Circuit Board Replacement Kit Part# 322848-751

    Carrier

    MSRP: $191.55
    Now: $148.01
    Carrier® Circuit Board Replacement Kit; Backed by a One Year Warranty.   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $191.55
    Now: $148.01
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    Carrier Products Inducer Board Part# 313680-751

    Carrier

    MSRP: $233.46
    Now: $180.40
    Carrier® Inducer Board; Direct Cross of Obsolete Carrier/Bryant/Payne # HH84AA007; Backed by a One Year Warranty.   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum...
    MSRP: $233.46
    Now: $180.40
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    Armstrong Furnace Blower Control Part# R40403-003

    Armstrong Furnace

    MSRP: $206.55
    Now: $159.60
    Armstrong® part# R40403-003; Blower Control Fan Timer Board; Comes with Installation Manual; Backed by a One Year Warranty.
    MSRP: $206.55
    Now: $159.60
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    Rheem HSI Integrated Furnace Control, Part #695-200

    Robertshaw

    MSRP: $205.57
    Now: $158.85
    Circuit Board. This part is manufactured by Robertshaw® for Rheem; ; Comes with User Guide; Backed by a One Year Warranty.
    MSRP: $205.57
    Now: $158.85
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    Carrier Circuit Board, Part #HH84AA021

    Carrier

    MSRP: $189.24
    Now: $146.23
    Carrier/Bryant/Payne® Circuit Board, Part #HH84AA021; Backed by a One Year Warranty.   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order...
    MSRP: $189.24
    Now: $146.23
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    York Controls Fan Timer Circuit Board, Part #S1-031-02959-000

    York

    MSRP: $541.89
    Now: $418.74
    York Controls® Blower Control Board # S1-031-02959-000 replaces Honeywell® Fan Timer Board # ST9120C2002 and also York Controls® # S1-331-01237-000   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business...
    MSRP: $541.89
    Now: $418.74
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    Lennox Fan Timer Board - Part# X8609

    Lennox

    MSRP: $277.53
    Now: $214.46
    Lennox® # X8609 replaces Obsolete Lennox® # 28M99, 87H88, Armstrong®# R45692-001, Honeywell # ST9160B1027 and ST9160B1068, and Ducane# 20430801;   FurnacePartSource.com Commitment Item Typically Ships within the Same Business Day...
    MSRP: $277.53
    Now: $214.46
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    Nordyne Circuit Board, Part #903429

    Nordyne

    MSRP: $202.97
    Now: $156.84
    Nordyne® Control Board # 903429; Control Board for M series units   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order Requirements
    MSRP: $202.97
    Now: $156.84
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    Nordyne Circuit Board, Part #903106

    Nordyne

    MSRP: $397.90
    Now: $307.47
    Nordyne® Circuit Board # 903106   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order Requirements
    MSRP: $397.90
    Now: $307.47
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Shop Furnace & HVAC Control Boards

If your heating or cooling system is acting up, a faulty control board may be the culprit. Furnace Part Source carries a wide selection of replacement control boards for furnaces, air conditioners, and other HVAC systems. Whether you need a furnace control board, AC control board, or general HVAC circuit board, we offer OEM replacements for major brands like Carrier, Trane, Nordyne, Goodman, and York.

Our catalog is designed for homeowners, HVAC professionals, electricians, and handymen looking to make fast, affordable repairs. Every control board we stock is brand-new, guaranteed genuine, and ready to ship—no minimum order required.

Reliable Control Board Replacements at Your Fingertips

Control boards are the “brains” of your heating and cooling equipment. When they fail, your entire system may stop responding, misfire, or behave erratically. That’s why we carry a variety of furnace control boards with different input/output configurations, ignition types, and diagnostic capabilities to match both older and newer systems.

With over 500,000 HVAC parts in stock and same-day shipping available, Furnace Part Source makes it easy to get your furnace circuit board or HVAC control board delivered quickly and reliably. Not sure which model you need? Our support team is available 24/7 to help match part numbers or recommend replacements.

Frequently Asked Questions

What is a furnace control board?
A furnace control board is an electronic component that manages all of the operations of a furnace—ignition, blower fan timing, safety checks, and communication with the thermostat.

How do I know if my HVAC control board is bad?
Common signs include no response from the system, flashing error lights, or short-cycling. If your thermostat is working but your system isn’t responding, the control board may be the issue.

Can I replace a furnace control board myself?
Many experienced homeowners and handymen choose to replace furnace control boards themselves. However, always disconnect power and confirm compatibility before installation.

How much does it cost to replace a furnace control board?
Furnace control board replacement cost can range from $100–$600 depending on the brand and model. Ordering the part yourself and installing it can save significantly on labor costs.